From 0768c1a6260af401c3e57e6865ebdd8cbe484d33 Mon Sep 17 00:00:00 2001 From: "hendra.saputra" Date: Wed, 28 Oct 2020 21:52:00 +0000 Subject: [PATCH 1/2] Update to latest release of Spring and Spring hateoas --- README.asciidoc | 26 ++--- .../serialize/JacksonHydraSerializer.java | 2 +- .../hydra/serialize/LdContextFactory.java | 23 ++-- hydra-spring/pom.xml | 2 +- ...esMixin.java => CollectionModelMixin.java} | 19 ++-- .../spring/hydra/JacksonHydraModule.java | 20 ++-- .../spring/hydra/LinkListSerializer.java | 78 +++++++------ ...sourcesMixin.java => PagedModelMixin.java} | 19 ++-- .../hydra/PagedResourcesSerializer.java | 50 +++++---- ...xin.java => RepresentationModelMixin.java} | 13 +-- .../spring/hydra/ResourceMixin.java | 9 +- .../spring/hydra/ResourceSerializer.java | 10 +- .../spring/hydra/ResourcesSerializer.java | 10 +- .../test/DummyEventControllerExposed.java | 22 ++-- .../sample/test/EventResourceExposed.java | 2 +- pom.xml | 26 ++--- spring-hateoas-ext/pom.xml | 3 +- .../hypermedia/ResourceSupportVisitor.java | 7 +- .../escalon/hypermedia/ResourceTraversal.java | 18 +-- .../de/escalon/hypermedia/action/Options.java | 2 +- .../hypermedia/action/ResourceHandler.java | 2 +- .../hypermedia/affordance/Affordance.java | 18 +-- .../hypermedia/affordance/TypedResource.java | 2 +- .../hypermedia/spring/AffordanceBuilder.java | 34 +++--- .../spring/AffordanceBuilderFactory.java | 106 +++++++++++------- .../hypermedia/spring/siren/SirenAction.java | 14 +-- .../spring/siren/SirenMessageConverter.java | 8 +- .../hypermedia/spring/siren/SirenUtils.java | 74 ++++++------ .../spring/uber/AbstractUberNode.java | 6 +- .../spring/uber/NullValueSerializer.java | 12 +- .../UberJackson2HttpMessageConverter.java | 8 +- .../spring/uber/UberJsonLinkDiscoverer.java | 2 +- .../hypermedia/spring/uber/UberUtils.java | 33 +++--- .../xhtml/XhtmlResourceMessageConverter.java | 24 ++-- .../hypermedia/spring/xhtml/XhtmlWriter.java | 9 +- .../hypermedia/affordance/AffordanceTest.java | 5 +- .../spring/AffordanceBuilderFactoryTest.java | 58 +++++----- .../sample/test/DummyEventController.java | 32 +++--- .../hypermedia/spring/sample/test/Event.java | 10 +- .../spring/sample/test/EventResource.java | 6 +- .../spring/sample/test/ReviewController.java | 6 +- .../siren/SirenMessageConverterTest.java | 24 ++-- .../spring/siren/SirenUtilsTest.java | 48 ++++---- .../spring/uber/AbstractUberNodeTest.java | 14 +-- .../hypermedia/spring/uber/UberUtilsTest.java | 25 +++-- .../spring/xhtml/XhtmlWriterTest.java | 11 +- 46 files changed, 497 insertions(+), 455 deletions(-) rename hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/{ResourcesMixin.java => CollectionModelMixin.java} (83%) rename hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/{PagedResourcesMixin.java => PagedModelMixin.java} (83%) rename hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/{ResourceSupportMixin.java => RepresentationModelMixin.java} (78%) diff --git a/README.asciidoc b/README.asciidoc index 3ccaa8f6..09e17305 100644 --- a/README.asciidoc +++ b/README.asciidoc @@ -106,10 +106,10 @@ Look into the https://github.com/dschulten/hydra-java/blob/master/hydra-sample/s The tests in https://github.com/dschulten/hydra-java/blob/master/hydra-jsonld/src/test/java/de/escalon/hypermedia/hydra/serialize/JacksonHydraSerializerTest.java[JacksonHydraSerializerTest] demonstrate the usage of `@Vocab`, `@Expose` and `@Term`. == Features of hydra-spring -The conversion of a spring-hateoas Resource to hydra does the following: +The conversion of a spring-hateoas EntityModel to hydra does the following: -- renders a spring-hateoas `List` in a `Resource` in json-ld style -- renders spring-hateoas `Resources` as `hydra:Collection`. If you use this feature, make sure you have a `@Term(define = "hydra", as = "http://www.w3.org/ns/hydra/core#")` annotation in your context. +- renders a spring-hateoas `List` in a `EntityModel` in json-ld style +- renders spring-hateoas `CollectionModel` as `hydra:Collection`. If you use this feature, make sure you have a `@Term(define = "hydra", as = "http://www.w3.org/ns/hydra/core#")` annotation in your context. - renders spring-hateoas `PagedResources` as `hydra:Collection` with a `hydra:PartialCollectionView`. If you use this feature, make sure you have a `@Term(define = "hydra", as = "http://www.w3.org/ns/hydra/core#")` annotation in your context. - renders response with `"@vocab" : "http://schema.org/"` by default, a different `@vocab` can be defined on a class or package using the `@Vocab` annotation. - supports vocabularies in addition to the default vocabulary via terms in the `@context`. Use `@Term` in conjunction with `@Terms` on a class or package for this. @@ -219,7 +219,7 @@ AffordanceBuilder.linkTo(methodOn(Foo.class).getBars()).rel("bars") // rel() ins In the following we use `AffordanceBuilder` to add a `self` rel that can be used with GET, PUT and DELETE to an event bean. -First we wrap the event into a `Resource` so we can add affordances to it. Then we use the `linkTo-methodOn` technique three times to describe that the self rel can be used to get, update and delete the event. +First we wrap the event into a `EntityModel` so we can add affordances to it. Then we use the `linkTo-methodOn` technique three times to describe that the self rel can be used to get, update and delete the event. [source, Java] ---- @@ -232,9 +232,9 @@ First we wrap the event into a `Resource` so we can add affordances to it. Then public class EventController { @RequestMapping(value = "/{eventId}", method = RequestMethod.GET) - public @ResponseBody Resource getEvent(@PathVariable Integer eventId) { + public @ResponseBody EntityModel getEvent(@PathVariable Integer eventId) { // get the event from some backend, then: - Resource eventResource = new Resource(event); + EntityModel eventResource = new EntityModel(event); // using AffordanceBuilder.linkTo and AffordanceBuilder.methodOn // instead of ControllerLinkBuilder methods @@ -249,7 +249,7 @@ First we wrap the event into a `Resource` so we can add affordances to it. Then } @RequestMapping(value = "/{eventId}", method = RequestMethod.GET) - public @ResponseBody Resource getEvent(@PathVariable Integer eventId) { + public @ResponseBody EntityModel getEvent(@PathVariable Integer eventId) { ... } @@ -328,15 +328,15 @@ When rendered with the `HydraMessageConverter`, the resulting json-ld event obje === Specifying Property Value Requirements (from V. 0.2.0) -Now let us tell the client a range of possible values for a property. We want to allow clients to add reviews for the work performed at an event. For this, we add a `Resource` to the `Event`, so that we can define an affordance on the creative work which allows clients to send reviews. +Now let us tell the client a range of possible values for a property. We want to allow clients to add reviews for the work performed at an event. For this, we add a `EntityModel` to the `Event`, so that we can define an affordance on the creative work which allows clients to send reviews. [source, Java] ---- public class Event { ... - private final Resource workPerformed; + private final EntityModel workPerformed; - public Resource getWorkPerformed() { + public EntityModel getWorkPerformed() { return workPerformed; } ... @@ -344,11 +344,11 @@ Now let us tell the client a range of possible values for a property. We want to // in EventController: @RequestMapping(value = "/{eventId}", method = RequestMethod.GET) - public @ResponseBody Resource getEvent(@PathVariable Integer eventId) { + public @ResponseBody EntityModel getEvent(@PathVariable Integer eventId) { // with an event from backend do this: - event.getWorkPerformed() // <-- must be a Resource + event.getWorkPerformed() // <-- must be a EntityModel .add(linkTo(methodOn(ReviewController.class) // <-- must use AffordanceBuilder.linkTo here .addReview(event.id, new Review(null, new Rating(3)))) // <-- default ratingValue 3 .withRel("review")); @@ -538,7 +538,7 @@ The `SirenMessageConverter` renders Spring Hateoas Responses as https://github.c * in order to produce more expressive Siren actions, use the `linkTo-methodOn` idiom of `AffordanceBuilder` to point to your methods, as shown above for the sample `EventController` in the section AffordanceBuilder. * possible values found by `AffordanceBuilder` are treated as checkbox or radio button fields, following the technique discussed in the https://groups.google.com/forum/#!topic/siren-hypermedia/8mbOX44gguU[Siren group]. * field types can be defined via the value of the `@Input` annotation on method parameters (e.g. `@Input(Type.DATE)`). -* nested `Resource` objects are shown as embedded representations +* nested `EntityModel` objects are shown as embedded representations * distinguishes navigational and embedded links by a default list of navigational rels. This list can be customized via `SirenMessageConverter.addNavigationalRels`. * for sub-entities the property name is used as relation name. The Siren class name is derived from the Java class name. The rel names can be customized using a `DocumentationProvider` implementation, e.g. the `JsonLdDocumentationProvider` from hydra-jsonld will make use of `@Expose` and `@Vocab` annotations on your response bean packages. * relies on `XhtmlMessageConverter` to process incoming form-urlencoded requests and on `MappingJackson2HttpMessageConverter` for json requests. diff --git a/hydra-jsonld/src/main/java/de/escalon/hypermedia/hydra/serialize/JacksonHydraSerializer.java b/hydra-jsonld/src/main/java/de/escalon/hypermedia/hydra/serialize/JacksonHydraSerializer.java index 98fec9d6..ae796640 100644 --- a/hydra-jsonld/src/main/java/de/escalon/hypermedia/hydra/serialize/JacksonHydraSerializer.java +++ b/hydra-jsonld/src/main/java/de/escalon/hypermedia/hydra/serialize/JacksonHydraSerializer.java @@ -186,7 +186,7 @@ protected void serializeType(Object bean, JsonGenerator jgen, SerializerProvider } // adds @type attribute, reflecting the simple name of the class or the exposed annotation on the class. final Expose classExpose = findAnnotation(bean.getClass(), Expose.class); - // TODO allow to search up the hierarchy for ResourceSupport mixins and cache found result? + // TODO allow to search up the hierarchy for RepresentationModel mixins and cache found result? final Class mixin = provider.getConfig() .findMixInClassFor(bean.getClass()); final Expose mixinExpose = findAnnotation(mixin, Expose.class); diff --git a/hydra-jsonld/src/main/java/de/escalon/hypermedia/hydra/serialize/LdContextFactory.java b/hydra-jsonld/src/main/java/de/escalon/hypermedia/hydra/serialize/LdContextFactory.java index c1ea829a..fb3bb7c8 100644 --- a/hydra-jsonld/src/main/java/de/escalon/hypermedia/hydra/serialize/LdContextFactory.java +++ b/hydra-jsonld/src/main/java/de/escalon/hypermedia/hydra/serialize/LdContextFactory.java @@ -31,10 +31,9 @@ public class LdContextFactory { /** * Gets vocab for given bean. * - * @param bean - * to inspect for vocab - * @param mixInClass - * for bean which might define a vocab or has a context provider + * @param mixinSource to inspect from + * @param bean to inspect for vocab + * @param mixInClass for bean which might define a vocab or has a context provider * @return explicitly defined vocab or http://schema.org */ public String getVocab(MixinSource mixinSource, Object bean, Class mixInClass) { @@ -74,7 +73,7 @@ public Map getTerms(MixinSource mixinSource, Object bean, Class< bean = proxyUnwrapper.unwrapProxy(bean); } - Map termsMap = new LinkedHashMap(); + Map termsMap = new LinkedHashMap<>(); if (bean != null) { final Class beanClass = bean.getClass(); termsMap.putAll(termsFromClass(beanClass)); @@ -140,7 +139,7 @@ private boolean returnsEnumCollection( Method method ) { ParameterizedType pt = (ParameterizedType) t; if ( pt.getActualTypeArguments().length == 1 ) { Type arg = pt.getActualTypeArguments()[0]; - return Class.class.isInstance( arg ) && Enum.class.isAssignableFrom( (Class) arg ); + return arg instanceof Class && Enum.class.isAssignableFrom( (Class) arg); } } } @@ -164,7 +163,7 @@ private Map getAnnotatedTerms(AnnotatedElement annotatedElement, if (annotatedTerms != null && annotatedTerm != null) { throw new IllegalStateException("found both @Terms and @Term in " + name + ", use either one or the other"); } - Map annotatedTermsMap = new LinkedHashMap(); + Map annotatedTermsMap = new LinkedHashMap<>(); if (annotatedTerms != null) { final Term[] terms = annotatedTerms.value(); for (Term term : terms) { @@ -186,17 +185,17 @@ private void collectTerms(String name, Map annotatedTermsMap, Te if (!reverse) { annotatedTermsMap.put(define, as); } else { - Map reverseTerm = new LinkedHashMap(); + Map reverseTerm = new LinkedHashMap<>(); reverseTerm.put(JsonLdKeywords.AT_REVERSE, as); annotatedTermsMap.put(define, reverseTerm); } } private Object getNestedContextProviderFromMixin(MixinSource mixinSource, Object bean, Class mixinClass) { - // TODO does not consider Collection or Collection to find mixin of + // TODO does not consider Collection or Collection to find mixin of // object wrapped in resource // TODO does not consider package of object wrapped in resource - // TODO: we do not know Resources here + // TODO: we do not know CollectionModel here if (mixinClass == null) { return null; } @@ -256,7 +255,7 @@ private Method getContextProvider(Class beanClass) { private void addEnumTerms(Map termsMap, Expose expose, String name, Enum value) throws NoSuchFieldException { if (value != null) { - Map map = new LinkedHashMap(); + Map map = new LinkedHashMap<>(); if (expose != null) { map.put(JsonLdKeywords.AT_ID, expose.value()); } @@ -269,7 +268,7 @@ private void addEnumTerms(Map termsMap, Expose expose, String na termsMap.put(value.toString(), enumValueExpose.value()); } else { // might use upperToCamelCase if nothing is exposed - final String camelCaseEnumValue = WordUtils.capitalizeFully(value.toString(), new char[]{'_'}) + final String camelCaseEnumValue = WordUtils.capitalizeFully(value.toString(), '_') .replaceAll("_", ""); termsMap.put(value.toString(), camelCaseEnumValue); } diff --git a/hydra-spring/pom.xml b/hydra-spring/pom.xml index bcaa0ff9..ed43ebdf 100644 --- a/hydra-spring/pom.xml +++ b/hydra-spring/pom.xml @@ -110,7 +110,7 @@ junit - com.intellij + org.jetbrains annotations diff --git a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourcesMixin.java b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/CollectionModelMixin.java similarity index 83% rename from hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourcesMixin.java rename to hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/CollectionModelMixin.java index d6b5c014..c0528b15 100644 --- a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourcesMixin.java +++ b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/CollectionModelMixin.java @@ -13,25 +13,26 @@ package de.escalon.hypermedia.spring.hydra; -import com.fasterxml.jackson.annotation.JsonProperty; -import com.fasterxml.jackson.annotation.JsonUnwrapped; -import com.fasterxml.jackson.databind.annotation.JsonSerialize; import de.escalon.hypermedia.hydra.mapping.ContextProvider; import de.escalon.hypermedia.hydra.mapping.Expose; import de.escalon.hypermedia.hydra.mapping.Term; -import org.springframework.hateoas.Link; -import org.springframework.hateoas.Resources; import java.util.Collection; -import java.util.List; + +import org.springframework.hateoas.CollectionModel; +import org.springframework.hateoas.Links; + +import com.fasterxml.jackson.annotation.JsonProperty; +import com.fasterxml.jackson.annotation.JsonUnwrapped; +import com.fasterxml.jackson.databind.annotation.JsonSerialize; /** - * Mixin for json-ld serialization of Resources. Created by dschulten on 14.09.2014. + * Mixin for json-ld serialization of CollectionModel. Created by dschulten on 14.09.2014. */ @JsonSerialize(include = JsonSerialize.Inclusion.NON_EMPTY) @Term(define = "hydra", as = "http://www.w3.org/ns/hydra/core#") @Expose("hydra:Collection") -public abstract class ResourcesMixin extends Resources { +public abstract class CollectionModelMixin extends CollectionModel { @Override @JsonProperty("hydra:member") @@ -43,7 +44,7 @@ public Collection getContent() { @Override @JsonSerialize(using = LinkListSerializer.class) @JsonUnwrapped - public List getLinks() { + public Links getLinks() { return super.getLinks(); } } diff --git a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/JacksonHydraModule.java b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/JacksonHydraModule.java index b42b8050..0a0186fb 100644 --- a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/JacksonHydraModule.java +++ b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/JacksonHydraModule.java @@ -23,10 +23,10 @@ import de.escalon.hypermedia.affordance.TypedResource; import de.escalon.hypermedia.hydra.serialize.JacksonHydraSerializer; import de.escalon.hypermedia.hydra.serialize.ProxyUnwrapper; -import org.springframework.hateoas.PagedResources; -import org.springframework.hateoas.Resource; -import org.springframework.hateoas.ResourceSupport; -import org.springframework.hateoas.Resources; +import org.springframework.hateoas.PagedModel; +import org.springframework.hateoas.EntityModel; +import org.springframework.hateoas.RepresentationModel; +import org.springframework.hateoas.CollectionModel; /** @@ -43,13 +43,13 @@ public JacksonHydraModule() { public JacksonHydraModule(ProxyUnwrapper proxyUnwrapper) { super("json-hydra-module", new Version(1, 0, 0, null, "de.escalon.hypermedia", "hydra-spring")); this.proxyUnwrapper = proxyUnwrapper; - setMixInAnnotation(ResourceSupport.class, ResourceSupportMixin.class); - setMixInAnnotation(Resources.class, ResourcesMixin.class); - setMixInAnnotation(PagedResources.class, PagedResourcesMixin.class); - setMixInAnnotation(Resource.class, ResourceMixin.class); + setMixInAnnotation(RepresentationModel.class, RepresentationModelMixin.class); + setMixInAnnotation(CollectionModel.class, CollectionModelMixin.class); + setMixInAnnotation(PagedModel.class, PagedModelMixin.class); + setMixInAnnotation(EntityModel.class, ResourceMixin.class); setMixInAnnotation(TypedResource.class, TypedResourceMixin.class); - addSerializer(Resource.class, new ResourceSerializer()); - addSerializer(PagedResources.class, new PagedResourcesSerializer(proxyUnwrapper)); + addSerializer(EntityModel.class, new ResourceSerializer()); + addSerializer(PagedModel.class, new PagedResourcesSerializer(proxyUnwrapper)); } diff --git a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/LinkListSerializer.java b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/LinkListSerializer.java index ef7b764c..bed5fd79 100644 --- a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/LinkListSerializer.java +++ b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/LinkListSerializer.java @@ -13,30 +13,21 @@ package de.escalon.hypermedia.spring.hydra; -import com.fasterxml.jackson.annotation.JsonCreator; -import com.fasterxml.jackson.annotation.JsonProperty; -import com.fasterxml.jackson.core.JsonGenerator; -import com.fasterxml.jackson.databind.SerializerProvider; -import com.fasterxml.jackson.databind.ser.std.StdSerializer; import de.escalon.hypermedia.PropertyUtils; import de.escalon.hypermedia.action.Cardinality; import de.escalon.hypermedia.action.Input; -import de.escalon.hypermedia.affordance.*; +import de.escalon.hypermedia.affordance.ActionDescriptor; +import de.escalon.hypermedia.affordance.ActionInputParameter; +import de.escalon.hypermedia.affordance.Affordance; +import de.escalon.hypermedia.affordance.DataType; +import de.escalon.hypermedia.affordance.PartialUriTemplateComponents; +import de.escalon.hypermedia.affordance.TypedResource; import de.escalon.hypermedia.hydra.mapping.Expose; import de.escalon.hypermedia.hydra.serialize.JacksonHydraSerializer; import de.escalon.hypermedia.hydra.serialize.JsonLdKeywords; import de.escalon.hypermedia.hydra.serialize.LdContext; import de.escalon.hypermedia.hydra.serialize.LdContextFactory; import de.escalon.hypermedia.spring.SpringActionInputParameter; -import org.apache.commons.lang3.StringUtils; -import org.jetbrains.annotations.Nullable; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; -import org.springframework.core.MethodParameter; -import org.springframework.core.annotation.AnnotationUtils; -import org.springframework.hateoas.IanaRels; -import org.springframework.hateoas.Link; -import org.springframework.util.Assert; import java.beans.BeanInfo; import java.beans.IntrospectionException; @@ -48,12 +39,36 @@ import java.lang.reflect.Method; import java.lang.reflect.ParameterizedType; import java.lang.reflect.Type; -import java.util.*; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Collection; +import java.util.Deque; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +import org.apache.commons.lang3.StringUtils; +import org.jetbrains.annotations.Nullable; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.springframework.core.MethodParameter; +import org.springframework.core.annotation.AnnotationUtils; +import org.springframework.hateoas.IanaLinkRelations; +import org.springframework.hateoas.Link; +import org.springframework.hateoas.LinkRelation; +import org.springframework.hateoas.Links; +import org.springframework.util.Assert; + +import com.fasterxml.jackson.annotation.JsonCreator; +import com.fasterxml.jackson.annotation.JsonProperty; +import com.fasterxml.jackson.core.JsonGenerator; +import com.fasterxml.jackson.databind.SerializerProvider; +import com.fasterxml.jackson.databind.ser.std.StdSerializer; /** * Serializer to convert Link to json-ld representation. Created by dschulten on 19.09.2014. */ -public class LinkListSerializer extends StdSerializer> { +public class LinkListSerializer extends StdSerializer { Logger LOG = LoggerFactory.getLogger(LinkListSerializer.class); @@ -65,7 +80,7 @@ public LinkListSerializer() { } @Override - public void serialize(List links, JsonGenerator jgen, + public void serialize(Links links, JsonGenerator jgen, SerializerProvider serializerProvider) throws IOException { try { @@ -83,7 +98,7 @@ public void serialize(List links, JsonGenerator jgen, if (affordance.getUriTemplateComponents() .hasVariables()) { // TODO resolve rel against context - if ("hydra:search".equals(affordance.getRel()) + if ("hydra:search".equals(affordance.getRel().value()) || Cardinality.SINGLE == affordance .getCardinality()) { templatedLinks.add(affordance); @@ -111,7 +126,7 @@ public void serialize(List links, JsonGenerator jgen, } else { simpleLinks.add(link); } - if ("self".equals(link.getRel())) { + if ("self".equals(link.getRel().value())) { selfRel = link; } } @@ -121,8 +136,8 @@ public void serialize(List links, JsonGenerator jgen, // only optional unsatisfied variables ActionDescriptor actionDescriptorForHttpGet = getActionDescriptorForHttpGet(templatedLink); // TODO handle rev here - String rel = templatedLink.getRel(); - writeIriTemplate(rel, templatedLink.getHref(), templatedLink.getVariableNames(), + LinkRelation rel = templatedLink.getRel(); + writeIriTemplate(rel.value(), templatedLink.getHref(), templatedLink.getVariableNames(), actionDescriptorForHttpGet, jgen); } @SuppressWarnings("unchecked") @@ -166,7 +181,7 @@ public void serialize(List links, JsonGenerator jgen, jgen.writeStringField("hydra:object", selfRel.getHref()); } } else if (collectionAffordance.getRel() != null) { - jgen.writeStringField("hydra:property", collectionAffordance.getRel()); + jgen.writeStringField("hydra:property", collectionAffordance.getRel().value()); if (collectionHolder != null) { // can't use writeObjectField, it won't inherit the context stack writeCollectionHolder("hydra:subject", collectionHolder, jgen); @@ -193,12 +208,12 @@ public void serialize(List links, JsonGenerator jgen, } for (Affordance affordance : affordances) { - final String rel = affordance.getRel(); + final LinkRelation rel = affordance.getRel(); List actionDescriptors = affordance.getActionDescriptors(); if (!actionDescriptors.isEmpty()) { - if (!Link.REL_SELF.equals(rel)) { - jgen.writeObjectFieldStart(rel); // begin rel + if (!IanaLinkRelations.SELF.equals(rel)) { + jgen.writeObjectFieldStart(rel.value()); // begin rel } jgen.writeStringField(JsonLdKeywords.AT_ID, affordance.getHref()); jgen.writeArrayFieldStart("hydra:operation"); @@ -210,18 +225,18 @@ public void serialize(List links, JsonGenerator jgen, if (!actionDescriptors.isEmpty()) { jgen.writeEndArray(); // end hydra:operation - if (!Link.REL_SELF.equals(rel)) { + if (!IanaLinkRelations.SELF.equals(rel)) { jgen.writeEndObject(); // end rel } } } for (Link simpleLink : simpleLinks) { - final String rel = simpleLink.getRel(); - if (Link.REL_SELF.equals(rel)) { + final LinkRelation rel = simpleLink.getRel(); + if (IanaLinkRelations.SELF.isSameAs(rel)) { jgen.writeStringField("@id", simpleLink.getHref()); } else { - String linkAttributeName = IanaRels.isIanaRel(rel) ? IANA_REL_PREFIX + rel : rel; + String linkAttributeName = IanaLinkRelations.isIanaRel(rel) ? IANA_REL_PREFIX + rel.value() : rel.value(); jgen.writeObjectFieldStart(linkAttributeName); jgen.writeStringField("@id", simpleLink.getHref()); jgen.writeEndObject(); @@ -338,7 +353,6 @@ private void recurseSupportedProperties(JsonGenerator jgen, String currentVocab, Map properties = new HashMap(); // collect supported properties from ctor - Constructor[] constructors = valueType.getConstructors(); // find default ctor Constructor constructor = PropertyUtils.findDefaultCtor(constructors); @@ -520,7 +534,7 @@ private void recurseSupportedProperties(JsonGenerator jgen, String currentVocab, private String getPropertyOrClassNameInVocab(@Nullable String currentVocab, String propertyOrClassName, String vocabulary, String vocabularyPrefixWithColon) { - Assert.notNull(vocabulary); + Assert.notNull(vocabulary, "Vocabulary should be not null"); String ret; if (vocabulary.equals(currentVocab)) { ret = propertyOrClassName; diff --git a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/PagedResourcesMixin.java b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/PagedModelMixin.java similarity index 83% rename from hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/PagedResourcesMixin.java rename to hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/PagedModelMixin.java index 6315f729..9c065a14 100644 --- a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/PagedResourcesMixin.java +++ b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/PagedModelMixin.java @@ -1,17 +1,18 @@ package de.escalon.hypermedia.spring.hydra; -import com.fasterxml.jackson.annotation.JsonIgnore; -import com.fasterxml.jackson.annotation.JsonProperty; -import com.fasterxml.jackson.annotation.JsonUnwrapped; -import com.fasterxml.jackson.databind.annotation.JsonSerialize; import de.escalon.hypermedia.hydra.mapping.ContextProvider; import de.escalon.hypermedia.hydra.mapping.Expose; import de.escalon.hypermedia.hydra.mapping.Term; -import org.springframework.hateoas.Link; -import org.springframework.hateoas.PagedResources; import java.util.Collection; -import java.util.List; + +import org.springframework.hateoas.Links; +import org.springframework.hateoas.PagedModel; + +import com.fasterxml.jackson.annotation.JsonIgnore; +import com.fasterxml.jackson.annotation.JsonProperty; +import com.fasterxml.jackson.annotation.JsonUnwrapped; +import com.fasterxml.jackson.databind.annotation.JsonSerialize; /** * Mixin for json-ld serialization of PagedResources. @@ -19,7 +20,7 @@ @JsonSerialize(include = JsonSerialize.Inclusion.NON_EMPTY) @Term(define = "hydra", as = "http://www.w3.org/ns/hydra/core#") @Expose("hydra:Collection") -public abstract class PagedResourcesMixin extends PagedResources { +public abstract class PagedModelMixin extends PagedModel { @Override @JsonProperty("hydra:member") @ContextProvider @@ -30,7 +31,7 @@ public Collection getContent() { @Override @JsonSerialize(using = LinkListSerializer.class) @JsonUnwrapped - public List getLinks() { + public Links getLinks() { return super.getLinks(); } diff --git a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/PagedResourcesSerializer.java b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/PagedResourcesSerializer.java index 46bdf32d..8c814f80 100644 --- a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/PagedResourcesSerializer.java +++ b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/PagedResourcesSerializer.java @@ -22,8 +22,12 @@ import com.fasterxml.jackson.databind.ser.std.StdSerializer; import com.fasterxml.jackson.databind.util.NameTransformer; import de.escalon.hypermedia.hydra.serialize.*; + +import org.springframework.hateoas.IanaLinkRelations; import org.springframework.hateoas.Link; -import org.springframework.hateoas.PagedResources; +import org.springframework.hateoas.LinkRelation; +import org.springframework.hateoas.Links; +import org.springframework.hateoas.PagedModel; import java.io.IOException; import java.util.*; @@ -31,16 +35,21 @@ import static de.escalon.hypermedia.hydra.serialize.JacksonHydraSerializer.KEY_LD_CONTEXT; /** - * Serializer for Resources. Created by dschulten on 15.09.2014. + * Serializer for CollectionModel. Created by dschulten on 15.09.2014. */ @SuppressWarnings("unused") -public class PagedResourcesSerializer extends StdSerializer { +public class PagedResourcesSerializer extends StdSerializer { private final static Set navigationRels = new HashSet(); static { - Collections.addAll(navigationRels, Link.REL_FIRST, Link.REL_NEXT, Link.REL_PREVIOUS, Link.REL_LAST); + Collections.addAll( + navigationRels, + IanaLinkRelations.FIRST.value(), + IanaLinkRelations.NEXT.value(), + IanaLinkRelations.PREVIOUS.value(), + IanaLinkRelations.LAST.value()); } private final LdContextFactory ldContextFactory; @@ -48,14 +57,14 @@ public class PagedResourcesSerializer extends StdSerializer { @SuppressWarnings("unused") public PagedResourcesSerializer(ProxyUnwrapper proxyUnwrapper) { - super(PagedResources.class); + super(PagedModel.class); this.ldContextFactory = new LdContextFactory(); this.proxyUnwrapper = proxyUnwrapper; ldContextFactory.setProxyUnwrapper(proxyUnwrapper); } @Override - public void serialize(PagedResources pagedResources, JsonGenerator jgen, SerializerProvider serializerProvider) + public void serialize(PagedModel pagedResources, JsonGenerator jgen, SerializerProvider serializerProvider) throws IOException { @@ -76,10 +85,10 @@ public void serialize(PagedResources pagedResources, JsonGenerator jgen, Seriali } // TODO: filter next/previous/first/last from link list - maybe create new PagedResources without them? - List links = pagedResources.getLinks(); + Links links = pagedResources.getLinks(); List filteredLinks = new ArrayList(); for (Link link : links) { - String rel = link.getRel(); + String rel = link.getRel().value(); if (navigationRels.contains(rel)) { continue; } else { @@ -87,7 +96,7 @@ public void serialize(PagedResources pagedResources, JsonGenerator jgen, Seriali } } - PagedResources toRender = new PagedResources(pagedResources.getContent(), pagedResources.getMetadata(), + PagedModel toRender = new PagedModel(pagedResources.getContent(), pagedResources.getMetadata(), filteredLinks); jgen.writeStartObject(); @@ -101,18 +110,18 @@ public void serialize(PagedResources pagedResources, JsonGenerator jgen, Seriali serializer.unwrappingSerializer(NameTransformer.NOP) .serialize(toRender, jgen, serializerProvider); - PagedResources.PageMetadata metadata = pagedResources.getMetadata(); + PagedModel.PageMetadata metadata = pagedResources.getMetadata(); jgen.writeNumberField("hydra:totalItems", metadata.getTotalElements()); // begin hydra:view jgen.writeObjectFieldStart("hydra:view"); jgen.writeStringField(JsonLdKeywords.AT_TYPE, "hydra:PartialCollectionView"); - writeRelLink(pagedResources, jgen, Link.REL_NEXT); - writeRelLink(pagedResources, jgen, "previous"); + writeRelLink(pagedResources, jgen, IanaLinkRelations.NEXT); + writeRelLink(pagedResources, jgen, IanaLinkRelations.PREV); // must also translate prev to its synonym previous - writeRelLink(pagedResources, jgen, Link.REL_PREVIOUS, "previous"); - writeRelLink(pagedResources, jgen, Link.REL_FIRST); - writeRelLink(pagedResources, jgen, Link.REL_LAST); + writeRelLink(pagedResources, jgen, IanaLinkRelations.PREVIOUS, "previous"); + writeRelLink(pagedResources, jgen, IanaLinkRelations.FIRST); + writeRelLink(pagedResources, jgen, IanaLinkRelations.LAST); jgen.writeEndObject(); // end hydra:view @@ -173,15 +182,14 @@ protected void serializeContext(Object bean, JsonGenerator jgen, } } - private void writeRelLink(PagedResources value, JsonGenerator jgen, String rel) throws IOException { - writeRelLink(value, jgen, rel, rel); + private void writeRelLink(PagedModel value, JsonGenerator jgen, LinkRelation rel) throws IOException { + writeRelLink(value, jgen, rel, rel.value()); } - private void writeRelLink(PagedResources value, JsonGenerator jgen, String rel, String hydraPredicate) throws + private void writeRelLink(PagedModel value, JsonGenerator jgen, LinkRelation rel, String hydraPredicate) throws IOException { - Link link = value.getLink(rel); - if (link != null) { - jgen.writeStringField("hydra:" + hydraPredicate, link.getHref()); + if (rel != null) { + jgen.writeStringField("hydra:" + hydraPredicate, rel.value()); } } diff --git a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourceSupportMixin.java b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/RepresentationModelMixin.java similarity index 78% rename from hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourceSupportMixin.java rename to hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/RepresentationModelMixin.java index dab9be83..f14a6ad9 100644 --- a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourceSupportMixin.java +++ b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/RepresentationModelMixin.java @@ -13,23 +13,22 @@ package de.escalon.hypermedia.spring.hydra; +import org.springframework.hateoas.Links; +import org.springframework.hateoas.RepresentationModel; + import com.fasterxml.jackson.annotation.JsonUnwrapped; import com.fasterxml.jackson.databind.annotation.JsonSerialize; -import org.springframework.hateoas.Link; -import org.springframework.hateoas.ResourceSupport; - -import java.util.List; /** - * Mixin for json-ld serialization of ResourceSupport. Created by dschulten on 14.09.2014. + * Mixin for json-ld serialization of RepresentationModel. Created by dschulten on 14.09.2014. */ @JsonSerialize(include = JsonSerialize.Inclusion.NON_EMPTY) -public class ResourceSupportMixin extends ResourceSupport { +public class RepresentationModelMixin extends RepresentationModel { @Override @JsonSerialize(using = LinkListSerializer.class) @JsonUnwrapped - public List getLinks() { + public Links getLinks() { return super.getLinks(); } diff --git a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourceMixin.java b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourceMixin.java index d78c4cd9..4bc8124c 100644 --- a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourceMixin.java +++ b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourceMixin.java @@ -17,15 +17,16 @@ import com.fasterxml.jackson.databind.annotation.JsonSerialize; import de.escalon.hypermedia.hydra.mapping.ContextProvider; import org.springframework.hateoas.Link; -import org.springframework.hateoas.Resource; +import org.springframework.hateoas.EntityModel; +import org.springframework.hateoas.Links; import java.util.List; /** - * Mixin for json-ld serialization of Resource. Created by dschulten on 14.09.2014. + * Mixin for json-ld serialization of EntityModel. Created by dschulten on 14.09.2014. */ @JsonSerialize(include = JsonSerialize.Inclusion.NON_EMPTY) -public abstract class ResourceMixin extends Resource { +public abstract class ResourceMixin extends EntityModel { @SuppressWarnings("unused") public ResourceMixin(T content, Link... links) { @@ -40,7 +41,7 @@ public ResourceMixin(T content, Iterable links) { @Override @JsonSerialize(using = LinkListSerializer.class) @JsonUnwrapped - public List getLinks() { + public Links getLinks() { return super.getLinks(); } diff --git a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourceSerializer.java b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourceSerializer.java index 840a4929..34bf89da 100644 --- a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourceSerializer.java +++ b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourceSerializer.java @@ -21,21 +21,21 @@ import com.fasterxml.jackson.databind.ser.BeanSerializerFactory; import com.fasterxml.jackson.databind.ser.std.StdSerializer; import com.fasterxml.jackson.databind.util.NameTransformer; -import org.springframework.hateoas.Resource; +import org.springframework.hateoas.EntityModel; import java.io.IOException; /** - * Serializer for json-ld representation of Resource. Created by dschulten on 15.09.2014. + * Serializer for json-ld representation of EntityModel. Created by dschulten on 15.09.2014. */ -public class ResourceSerializer extends StdSerializer { +public class ResourceSerializer extends StdSerializer { public ResourceSerializer() { - super(Resource.class); + super(EntityModel.class); } @Override - public void serialize(Resource value, JsonGenerator jgen, SerializerProvider provider) throws IOException { + public void serialize(EntityModel value, JsonGenerator jgen, SerializerProvider provider) throws IOException { final SerializationConfig config = provider.getConfig(); JavaType javaType = config.constructType(value.getClass()); diff --git a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourcesSerializer.java b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourcesSerializer.java index a9db3682..dc7f4ad4 100644 --- a/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourcesSerializer.java +++ b/hydra-spring/src/main/java/de/escalon/hypermedia/spring/hydra/ResourcesSerializer.java @@ -20,23 +20,23 @@ import com.fasterxml.jackson.databind.SerializerProvider; import com.fasterxml.jackson.databind.ser.BeanSerializerFactory; import com.fasterxml.jackson.databind.ser.std.StdSerializer; -import org.springframework.hateoas.Resources; +import org.springframework.hateoas.CollectionModel; import java.io.IOException; /** - * Serializer for Resources. Created by dschulten on 15.09.2014. + * Serializer for CollectionModel. Created by dschulten on 15.09.2014. */ @SuppressWarnings("unused") -public class ResourcesSerializer extends StdSerializer { +public class ResourcesSerializer extends StdSerializer { @SuppressWarnings("unused") public ResourcesSerializer() { - super(Resources.class); + super(CollectionModel.class); } @Override - public void serialize(Resources value, JsonGenerator jgen, SerializerProvider provider) throws IOException { + public void serialize(CollectionModel value, JsonGenerator jgen, SerializerProvider provider) throws IOException { final SerializationConfig config = provider.getConfig(); JavaType javaType = config.constructType(value.getClass()); diff --git a/hydra-spring/src/test/java/de/escalon/hypermedia/spring/sample/test/DummyEventControllerExposed.java b/hydra-spring/src/test/java/de/escalon/hypermedia/spring/sample/test/DummyEventControllerExposed.java index df025ba0..23bef0d1 100644 --- a/hydra-spring/src/test/java/de/escalon/hypermedia/spring/sample/test/DummyEventControllerExposed.java +++ b/hydra-spring/src/test/java/de/escalon/hypermedia/spring/sample/test/DummyEventControllerExposed.java @@ -16,9 +16,9 @@ import de.escalon.hypermedia.action.Input; import de.escalon.hypermedia.hydra.mapping.Expose; import de.escalon.hypermedia.spring.AffordanceBuilder; -import org.springframework.hateoas.Resource; -import org.springframework.hateoas.ResourceSupport; -import org.springframework.hateoas.Resources; +import org.springframework.hateoas.EntityModel; +import org.springframework.hateoas.RepresentationModel; +import org.springframework.hateoas.CollectionModel; import org.springframework.http.HttpEntity; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.*; @@ -42,13 +42,13 @@ public class DummyEventControllerExposed extends DummyEventController { @RequestMapping(value = "/regex/{eventId:.+}", method = RequestMethod.GET) public @ResponseBody - Resource getEventWithRegexPathVariableMapping(@PathVariable @Expose("ex:eventId") Integer eventId) { - Resource resource = new Resource(getEvents().get(eventId)); + EntityModel getEventWithRegexPathVariableMapping(@PathVariable @Expose("ex:eventId") Integer eventId) { + EntityModel resource = new EntityModel(getEvents().get(eventId)); resource.add(linkTo(ReviewController.class).withRel("review")); return resource; } - public static class FooResource extends ResourceSupport { + public static class FooResource extends RepresentationModel { private Pageable pageable; public FooResource(Pageable pageable) { @@ -126,7 +126,7 @@ public List getStrings() { } @RequestMapping("/query") - public HttpEntity> findList(@Input(include = {"offset", "size"}) Pageable pageable, + public HttpEntity> findList(@Input(include = {"offset", "size"}) Pageable pageable, @RequestParam(required = false) Integer foo1, @RequestParam(required = false) Integer foo2) { @@ -135,19 +135,19 @@ public HttpEntity> findList(@Input(include = {"offset", " .linkTo(methodOn(this.getClass()).findList(null, null, null)) .withRel("template")); - return new HttpEntity>(new Resources(Collections.singleton(fooResource))); + return new HttpEntity>(new CollectionModel(Collections.singleton(fooResource))); } @RequestMapping(method = RequestMethod.GET, params = {"evtName"}) public @ResponseBody - Resource findEventByName(@RequestParam("evtName") @Expose("http://schema.org/name") String eventName) { - Resource ret = null; + EntityModel findEventByName(@RequestParam("evtName") @Expose("http://schema.org/name") String eventName) { + EntityModel ret = null; for (Event event : getEvents()) { if (event.getWorkPerformed() .getContent().name.startsWith(eventName)) { - Resource resource = new Resource(event); + EntityModel resource = new EntityModel(event); resource.add(linkTo(ReviewController.class).withRel("review")); ret = resource; break; diff --git a/hydra-spring/src/test/java/de/escalon/hypermedia/spring/sample/test/EventResourceExposed.java b/hydra-spring/src/test/java/de/escalon/hypermedia/spring/sample/test/EventResourceExposed.java index d8023888..561bbcb4 100644 --- a/hydra-spring/src/test/java/de/escalon/hypermedia/spring/sample/test/EventResourceExposed.java +++ b/hydra-spring/src/test/java/de/escalon/hypermedia/spring/sample/test/EventResourceExposed.java @@ -16,7 +16,7 @@ import de.escalon.hypermedia.hydra.mapping.Expose; /** - * Sample Event derived from ResourceSupport. Created by dschulten on 13.09.2014. + * Sample Event derived from RepresentationModel. Created by dschulten on 13.09.2014. */ @Expose("Event") public class EventResourceExposed extends EventResource { diff --git a/pom.xml b/pom.xml index c8da1527..f3c3969e 100644 --- a/pom.xml +++ b/pom.xml @@ -15,8 +15,9 @@ UTF-8 - 4.3.12.RELEASE - 2.9.8 + 5.2.9.RELEASE + 1.1.2.RELEASE + 2.10.5 2014 @@ -95,7 +96,7 @@ org.springframework.hateoas spring-hateoas - 0.24.0.RELEASE + ${spring.hateoas.version} de.escalon.hypermedia @@ -115,13 +116,13 @@ org.apache.commons commons-lang3 - 3.1 + 3.11 junit junit - 4.12 + 4.13.1 test @@ -180,7 +181,7 @@ com.github.jsonld-java jsonld-java - 0.11.1 + 0.13.2 com.jayway.jsonpath @@ -191,19 +192,18 @@ javax.servlet javax.servlet-api - 3.1.0 + 4.0.1 provided - com.intellij + org.jetbrains annotations - 12.0 - provided + 20.1.0 org.springframework.plugin spring-plugin-core - 1.2.0.RELEASE + 2.0.0.RELEASE false @@ -218,8 +218,8 @@ org.apache.maven.plugins maven-compiler-plugin - 1.6 - 1.6 + 1.8 + 1.8 diff --git a/spring-hateoas-ext/pom.xml b/spring-hateoas-ext/pom.xml index 082c5d4e..223e6850 100644 --- a/spring-hateoas-ext/pom.xml +++ b/spring-hateoas-ext/pom.xml @@ -20,6 +20,7 @@ com.damnhandy handy-uri-templates 2.1.4 + test org.springframework.hateoas @@ -42,7 +43,7 @@ javax.servlet-api - com.intellij + org.jetbrains annotations diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/ResourceSupportVisitor.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/ResourceSupportVisitor.java index fa137112..5629b4d3 100644 --- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/ResourceSupportVisitor.java +++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/ResourceSupportVisitor.java @@ -1,15 +1,14 @@ package de.escalon.hypermedia; -import org.springframework.hateoas.Link; - import java.util.Collection; -import java.util.List; + +import org.springframework.hateoas.Links; /** * Created by Dietrich on 07.05.2016. */ public interface ResourceSupportVisitor { - boolean visitLinks(List links); + boolean visitLinks(Links links); boolean visitEnterCollection(Collection collection); diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/ResourceTraversal.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/ResourceTraversal.java index d74a3f8e..37c37666 100644 --- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/ResourceTraversal.java +++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/ResourceTraversal.java @@ -1,9 +1,9 @@ package de.escalon.hypermedia; import de.escalon.hypermedia.affordance.DataType; -import org.springframework.hateoas.Resource; -import org.springframework.hateoas.ResourceSupport; -import org.springframework.hateoas.Resources; +import org.springframework.hateoas.EntityModel; +import org.springframework.hateoas.RepresentationModel; +import org.springframework.hateoas.CollectionModel; import java.beans.PropertyDescriptor; import java.lang.reflect.Field; @@ -30,23 +30,23 @@ public void traverseResource(ResourceSupportVisitor visitor, Object object) { try { // TODO: move all returns to else branch of property descriptor handling - if (object instanceof Resource) { - Resource resource = (Resource) object; + if (object instanceof EntityModel) { + EntityModel resource = (EntityModel) object; if(!visitor.visitLinks(resource.getLinks())) { return; } traverseResource(visitor, resource.getContent()); return; - } else if (object instanceof Resources) { - Resources resources = (Resources) object; + } else if (object instanceof CollectionModel) { + CollectionModel resources = (CollectionModel) object; if(!visitor.visitLinks(resources.getLinks())) { return; } traverseResource(visitor, resources.getContent()); return; - } else if (object instanceof ResourceSupport) { - ResourceSupport resource = (ResourceSupport) object; + } else if (object instanceof RepresentationModel) { + RepresentationModel resource = (RepresentationModel) object; if(!visitor.visitLinks(resource.getLinks())) { return; } diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/action/Options.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/action/Options.java index 09eb24cf..7850350e 100644 --- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/action/Options.java +++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/action/Options.java @@ -28,7 +28,7 @@ public interface Options { * DetailOptions implementation which needs a personId for that: * 
      * @RequestMapping("/customer/{personId}/details")
-     * public HttpEntity<Resource<List<String>> showDetails(
+     * public HttpEntity<EntityModel<List<String>> showDetails(
      *     @PathVariable Long personId,
      *     @RequestParam("detail")
      *     @Select(options = DetailOptions.class, args = "personId")
diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/action/ResourceHandler.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/action/ResourceHandler.java
index ade33e59..bac81d5d 100644
--- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/action/ResourceHandler.java
+++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/action/ResourceHandler.java
@@ -7,7 +7,7 @@
 
 /**
  * Allows to explicitly qualify a method handler as resource with defined cardinality. Normally a Collection or a
- * Resources return type (optionally wrapped into an HttpEntity) or the presence of a POST method implicitly qualifies a
+ * CollectionModel return type (optionally wrapped into an HttpEntity) or the presence of a POST method implicitly qualifies a
  * resource a collection. Created by Dietrich on 02.05.2015.
  */
 @Retention(RetentionPolicy.RUNTIME)
diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/affordance/Affordance.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/affordance/Affordance.java
index 21c05b85..ddf9530f 100644
--- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/affordance/Affordance.java
+++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/affordance/Affordance.java
@@ -18,8 +18,10 @@
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonUnwrapped;
 import de.escalon.hypermedia.action.Cardinality;
-import org.springframework.aop.DynamicIntroductionAdvice;
+
+import org.springframework.hateoas.IanaLinkRelations;
 import org.springframework.hateoas.Link;
+import org.springframework.hateoas.LinkRelation;
 import org.springframework.hateoas.TemplateVariable;
 import org.springframework.hateoas.UriTemplate;
 import org.springframework.util.Assert;
@@ -441,8 +443,8 @@ public Affordance withRel(String rel) {
     @Override
     public Affordance withSelfRel() {
         if (!linkParams.get(REL.paramName)
-                .contains(Link.REL_SELF)) {
-            linkParams.add(REL.paramName, Link.REL_SELF);
+                .contains(IanaLinkRelations.SELF.value())) {
+            linkParams.add(REL.paramName, IanaLinkRelations.SELF.value());
         }
         return new Affordance(this.getHref(), linkParams, actionDescriptors);
     }
@@ -456,7 +458,7 @@ public Affordance withSelfRel() {
      */
     @Override
     public Affordance expand(Object... arguments) {
-        UriTemplate template = new UriTemplate(partialUriTemplate.asComponents()
+        UriTemplate template = UriTemplate.of(partialUriTemplate.asComponents()
                 .toString());
         String expanded = template.expand(arguments)
                 .toASCIIString();
@@ -493,7 +495,7 @@ public PartialUriTemplateComponents getUriTemplateComponents() {
      */
     @Override
     public Affordance expand(Map arguments) {
-        UriTemplate template = new UriTemplate(partialUriTemplate.asComponents()
+        UriTemplate template = UriTemplate.of(partialUriTemplate.asComponents()
                 .toString());
         String expanded = template.expand(arguments)
                 .toASCIIString();
@@ -544,8 +546,10 @@ public List getRels() {
      * @return first defined rel or null
      */
     @Override
-    public String getRel() {
-        return linkParams.getFirst(REL.paramName);
+    public LinkRelation getRel() {
+        if (linkParams.getFirst(REL.paramName) != null)
+            return LinkRelation.of(linkParams.getFirst(REL.paramName));
+        else return null;
     }
 
     /**
diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/affordance/TypedResource.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/affordance/TypedResource.java
index 464698ef..e5d7b4aa 100644
--- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/affordance/TypedResource.java
+++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/affordance/TypedResource.java
@@ -3,7 +3,7 @@
 import org.springframework.util.Assert;
 
 /**
- * Resource of a certain semantic type which may or may not be identifiable.
+ * EntityModel of a certain semantic type which may or may not be identifiable.
  */
 public class TypedResource {
 
diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/AffordanceBuilder.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/AffordanceBuilder.java
index 91e45986..0d8dae2e 100644
--- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/AffordanceBuilder.java
+++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/AffordanceBuilder.java
@@ -14,10 +14,12 @@
 package de.escalon.hypermedia.spring;
 
 import de.escalon.hypermedia.affordance.*;
-import org.springframework.hateoas.Identifiable;
+
+import org.springframework.hateoas.IanaLinkRelations;
 import org.springframework.hateoas.Link;
-import org.springframework.hateoas.LinkBuilder;
-import org.springframework.hateoas.core.DummyInvocationUtils;
+import org.springframework.hateoas.LinkRelation;
+import org.springframework.hateoas.server.LinkBuilder;
+import org.springframework.hateoas.server.core.DummyInvocationUtils;
 import org.springframework.util.Assert;
 import org.springframework.util.LinkedMultiValueMap;
 import org.springframework.util.MultiValueMap;
@@ -82,7 +84,7 @@ public static AffordanceBuilder linkTo(Class controller, Object... parameters
     }
 
     /**
-     * @see org.springframework.hateoas.MethodLinkBuilderFactory#linkTo(Method, Object...)
+     * @see org.springframework.hateoas.server.MethodLinkBuilderFactory#linkTo(Method, Object...)
      */
     public static AffordanceBuilder linkTo(Method method, Object... parameters) {
         return linkTo(method.getDeclaringClass(), method, parameters);
@@ -105,7 +107,7 @@ public static AffordanceBuilder linkTo(Class controller, Map param
     }
 
     /**
-     * @see org.springframework.hateoas.MethodLinkBuilderFactory#linkTo(Class, Method, Object...)
+     * @see org.springframework.hateoas.server.MethodLinkBuilderFactory#linkTo(Class, Method, Object...)
      */
     public static AffordanceBuilder linkTo(Class controller, Method method, Object... parameters) {
         return FACTORY.linkTo(controller, method, parameters);
@@ -266,7 +268,7 @@ public AffordanceBuilder rel(String rel) {
      * not belong to the product, but to an order. You can express that by saying:
      * 
      * TypedResource order = new TypedResource("http://schema.org/Order"); // holds the ordered items
-     * Resource<Product> product = new Resource<>(); // has a loose relationship to ordered items
+     * EntityModel<Product> product = new EntityModel<>(); // has a loose relationship to ordered items
      * product.add(linkTo(methodOn(OrderController.class).postOrderedItem()
      *    .rel(order, "orderedItem")); // order has ordered items, not product has ordered items
      * 

@@ -338,10 +340,6 @@ public AffordanceBuilder slash(Object object) {
             return this;
         }
 
-        if (object instanceof Identifiable) {
-            return slash((Identifiable) object);
-        }
-
         String urlPart = object.toString();
 
         // make sure one cannot delete the fragment
@@ -384,15 +382,6 @@ public AffordanceBuilder slash(Object object) {
         return new AffordanceBuilder(mergedUriComponents, actionDescriptors);
     }
 
-    @Override
-    public AffordanceBuilder slash(Identifiable identifiable) {
-        if (identifiable == null) {
-            return this;
-        }
-
-        return slash(identifiable.getId());
-    }
-
     @Override
     public URI toUri() {
         PartialUriTemplate partialUriTemplate = new PartialUriTemplate(partialUriTemplateComponents.toString());
@@ -413,9 +402,14 @@ public Affordance withRel(String rel) {
         return rel(rel).build();
     }
 
+    @Override
+    public Link withRel(final LinkRelation rel) {
+        return rel(rel.value()).build();
+    }
+
     @Override
     public Affordance withSelfRel() {
-        return rel(Link.REL_SELF).build();
+        return rel(IanaLinkRelations.SELF.value()).build();
     }
 
     @Override
diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/AffordanceBuilderFactory.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/AffordanceBuilderFactory.java
index 3fc67984..111c3114 100644
--- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/AffordanceBuilderFactory.java
+++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/AffordanceBuilderFactory.java
@@ -22,25 +22,45 @@
 import de.escalon.hypermedia.affordance.ActionInputParameter;
 import de.escalon.hypermedia.affordance.DataType;
 import de.escalon.hypermedia.affordance.PartialUriTemplate;
+
+import java.beans.PropertyDescriptor;
+import java.lang.annotation.Annotation;
+import java.lang.reflect.GenericArrayType;
+import java.lang.reflect.Method;
+import java.lang.reflect.ParameterizedType;
+import java.lang.reflect.Type;
+import java.lang.reflect.TypeVariable;
+import java.lang.reflect.WildcardType;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.LinkedHashMap;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
 import org.jetbrains.annotations.NotNull;
 import org.springframework.core.MethodParameter;
 import org.springframework.core.annotation.AnnotationUtils;
-import org.springframework.hateoas.MethodLinkBuilderFactory;
-import org.springframework.hateoas.Resources;
-import org.springframework.hateoas.core.AnnotationMappingDiscoverer;
-import org.springframework.hateoas.core.DummyInvocationUtils;
-import org.springframework.hateoas.core.MappingDiscoverer;
-import org.springframework.hateoas.core.MethodParameters;
-import org.springframework.hateoas.mvc.ControllerLinkBuilder;
+import org.springframework.hateoas.CollectionModel;
+import org.springframework.hateoas.server.MethodLinkBuilderFactory;
+import org.springframework.hateoas.server.core.AnnotationMappingDiscoverer;
+import org.springframework.hateoas.server.core.DummyInvocationUtils;
+import org.springframework.hateoas.server.core.LastInvocationAware;
+import org.springframework.hateoas.server.core.MappingDiscoverer;
+import org.springframework.hateoas.server.core.MethodInvocation;
+import org.springframework.hateoas.server.core.MethodParameters;
 import org.springframework.http.HttpEntity;
 import org.springframework.util.Assert;
 import org.springframework.util.StringUtils;
-import org.springframework.web.bind.annotation.*;
-
-import java.beans.PropertyDescriptor;
-import java.lang.annotation.Annotation;
-import java.lang.reflect.*;
-import java.util.*;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestHeader;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
 
 /**
  * Factory for {@link AffordanceBuilder}s in a Spring MVC rest service. Normally one should use the static methods of
@@ -50,14 +70,15 @@ public class AffordanceBuilderFactory implements MethodLinkBuilderFactory controller, Method method, Object... parameters) {
-
+    public AffordanceBuilder linkTo(@NotNull Class controller, @NotNull Method method, Object... parameters) {
         String pathMapping = MAPPING_DISCOVERER.getMapping(controller, method);
 
         Map requestParamNames = getRequestParamNames(method);
@@ -71,7 +92,7 @@ public AffordanceBuilder linkTo(Class controller, Method method, Object... pa
                 .build()
                 .toString() + mapping);
 
-        Map values = new HashMap();
+        Map values = new HashMap<>();
         Iterator variableNames = partialUriTemplate.getVariableNames()
                 .iterator();
         // there may be more or less mapping variables than arguments
@@ -118,21 +139,23 @@ private String join(Map... params) {
         return ret.toString();
     }
 
+    @NotNull
     @Override
-    public AffordanceBuilder linkTo(Class target) {
+    public AffordanceBuilder linkTo(@NotNull Class target) {
         return linkTo(target, new Object[0]);
     }
 
 
+    @NotNull
     @Override
-    public AffordanceBuilder linkTo(Class controller, Object... parameters) {
-        Assert.notNull(controller);
+    public AffordanceBuilder linkTo(@NotNull Class controller, Object... parameters) {
+        Assert.notNull(controller, "Controller should be not null");
 
         String mapping = MAPPING_DISCOVERER.getMapping(controller);
 
         PartialUriTemplate partialUriTemplate = new PartialUriTemplate(mapping == null ? "/" : mapping);
 
-        Map values = new HashMap();
+        Map values = new HashMap<>();
         Iterator names = partialUriTemplate.getVariableNames()
                 .iterator();
         // there may be more or less mapping variables than arguments
@@ -145,21 +168,24 @@ public AffordanceBuilder linkTo(Class controller, Object... parameters) {
         return new AffordanceBuilder().slash(partialUriTemplate.expand(values));
     }
 
+    @NotNull
     @Override
-    public AffordanceBuilder linkTo(Class controller, Map parameters) {
+    public AffordanceBuilder linkTo(@NotNull Class controller, @NotNull Map parameters) {
         String mapping = MAPPING_DISCOVERER.getMapping(controller);
         PartialUriTemplate partialUriTemplate = new PartialUriTemplate(mapping == null ? "/" : mapping);
         return new AffordanceBuilder().slash(partialUriTemplate.expand(parameters));
     }
 
+    @NotNull
     @Override
-    public AffordanceBuilder linkTo(Object invocationValue) {
-
-        Assert.isInstanceOf(DummyInvocationUtils.LastInvocationAware.class, invocationValue);
-        DummyInvocationUtils.LastInvocationAware invocations = (DummyInvocationUtils.LastInvocationAware)
-                invocationValue;
+    public AffordanceBuilder linkTo(@NotNull Object invocationValue) {
+        Assert.isInstanceOf(LastInvocationAware.class, invocationValue);
+        LastInvocationAware invocations = DummyInvocationUtils.getLastInvocationAware(invocationValue);
+        if (invocations == null) {
+            throw new IllegalStateException(String.format("Could not obtain previous invocation from %s!", invocationValue));
+        }
 
-        DummyInvocationUtils.MethodInvocation invocation = invocations.getLastInvocation();
+        MethodInvocation invocation = invocations.getLastInvocation();
         Method invokedMethod = invocation.getMethod();
 
         String pathMapping = MAPPING_DISCOVERER.getMapping(invokedMethod);
@@ -175,8 +201,7 @@ public AffordanceBuilder linkTo(Object invocationValue) {
                 .build()
                 .toString() + mapping);
 
-
-        Map values = new HashMap();
+        Map values = new HashMap<>();
         Iterator variableNames = partialUriTemplate.getVariableNames()
                 .iterator();
         while (classMappingParameters.hasNext()) {
@@ -201,11 +226,11 @@ public AffordanceBuilder linkTo(Object invocationValue) {
     }
 
     private Map getInputBeanParamNames(Method invokedMethod) {
-        MethodParameters parameters = new MethodParameters(invokedMethod);
+        MethodParameters parameters = MethodParameters.of(invokedMethod);
 
         final List inputParams = parameters.getParametersWith(Input.class);
 
-        Map ret = new LinkedHashMap(inputParams.size());
+        Map ret = new LinkedHashMap<>(inputParams.size());
         for (MethodParameter inputParam : inputParams) {
             Class parameterType = inputParam.getParameterType();
             // only use @Input param which is a bean or map and has no other annotations
@@ -214,7 +239,7 @@ private Map getInputBeanParamNames(Method invokedMethod) {
                     !(DataType.isSingleValueType(parameterType) || DataType.isArrayOrCollection(parameterType))) {
                 Input inputAnnotation = inputParam.getParameterAnnotation(Input.class);
 
-                Set explicitlyIncludedParams = new LinkedHashSet(inputParams.size());
+                Set explicitlyIncludedParams = new LinkedHashSet<>(inputParams.size());
 
                 Collections.addAll(explicitlyIncludedParams, inputAnnotation.include());
                 Collections.addAll(explicitlyIncludedParams, inputAnnotation.hidden());
@@ -254,7 +279,7 @@ private Map getInputBeanParamNames(Method invokedMethod) {
 
     @NotNull
     private Set getWritablePropertyNames(Class parameterType) {
-        Set inputBeanPropertyNames = new LinkedHashSet();
+        Set inputBeanPropertyNames = new LinkedHashSet<>();
         Map propertyDescriptors = PropertyUtils.getPropertyDescriptors
                 (parameterType);
         for (PropertyDescriptor propertyDescriptor : propertyDescriptors.values()) {
@@ -280,9 +305,9 @@ private void assertInputAnnotationConsistency(MethodParameter inputParam, Set getRequestParamNames(Method invokedMethod) {
-        MethodParameters parameters = new MethodParameters(invokedMethod);
+        MethodParameters parameters = MethodParameters.of(invokedMethod);
         final List requestParams = parameters.getParametersWith(RequestParam.class);
-        Map params = new LinkedHashMap(requestParams.size());
+        Map params = new LinkedHashMap<>(requestParams.size());
         for (MethodParameter requestParam : requestParams) {
             RequestParam requestParamAnnotation = requestParam.getParameterAnnotation(RequestParam.class);
             params.put(requestParam.getParameterName(), requestParamAnnotation.value()
@@ -384,8 +409,7 @@ private boolean containsCollection(Type genericReturnType) {
             if (HttpEntity.class.isAssignableFrom(cls)) {
                 Type[] typeArguments = t.getActualTypeArguments();
                 ret = containsCollection(typeArguments[0]);
-            } else if (Resources.class.isAssignableFrom(cls) ||
-                    Collection.class.isAssignableFrom(cls)) {
+            } else if (CollectionModel.class.isAssignableFrom(cls) || Collection.class.isAssignableFrom(cls)) {
                 ret = true;
             } else {
                 ret = false;
@@ -399,7 +423,7 @@ private boolean containsCollection(Type genericReturnType) {
             ret = false;
         } else if (genericReturnType instanceof Class) {
             Class cls = (Class) genericReturnType;
-            ret = Resources.class.isAssignableFrom(cls) ||
+            ret = CollectionModel.class.isAssignableFrom(cls) ||
                     Collection.class.isAssignableFrom(cls);
         } else {
             ret = false;
@@ -447,8 +471,8 @@ private static Map getActionInputParameters(Class<
 
         Assert.notNull(method, "MethodInvocation must not be null!");
 
-        MethodParameters parameters = new MethodParameters(method);
-        Map result = new HashMap();
+        MethodParameters parameters = MethodParameters.of(method);
+        Map result = new HashMap<>();
 
         for (MethodParameter parameter : parameters.getParametersWith(annotation)) {
             final int parameterIndex = parameter.getParameterIndex();
diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/siren/SirenAction.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/siren/SirenAction.java
index 42c750ad..3dbd4634 100644
--- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/siren/SirenAction.java
+++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/siren/SirenAction.java
@@ -1,22 +1,22 @@
 package de.escalon.hypermedia.spring.siren;
 
+import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
-import com.fasterxml.jackson.databind.annotation.JsonSerialize;
 
 import java.util.List;
 
 /**
  * Created by Dietrich on 17.04.2016.
  */
-@JsonSerialize(include = JsonSerialize.Inclusion.NON_EMPTY)
+@JsonInclude
 @JsonPropertyOrder({"name", "title", "method", "href", "type", "fields"})
 public class SirenAction extends AbstractSirenEntity {
 
-    private String name;
-    private String method;
-    private String href;
-    private String type;
-    private List fields;
+    private final String name;
+    private final String method;
+    private final String href;
+    private final String type;
+    private final List fields;
 
     /**
      * @param sirenClasses
diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/siren/SirenMessageConverter.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/siren/SirenMessageConverter.java
index d725ed05..2866fc82 100644
--- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/siren/SirenMessageConverter.java
+++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/siren/SirenMessageConverter.java
@@ -6,7 +6,7 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.SerializationFeature;
 import de.escalon.hypermedia.spring.DocumentationProvider;
-import org.springframework.hateoas.RelProvider;
+import org.springframework.hateoas.server.LinkRelationProvider;
 import org.springframework.http.HttpInputMessage;
 import org.springframework.http.HttpOutputMessage;
 import org.springframework.http.MediaType;
@@ -38,7 +38,7 @@ public SirenMessageConverter() {
      * @param relProvider
      *         to determine siren class
      */
-    public void setRelProvider(RelProvider relProvider) {
+    public void setRelProvider(LinkRelationProvider relProvider) {
         sirenUtils.setRelProvider(relProvider);
     }
 
@@ -116,8 +116,8 @@ protected void writeInternal(Object o, HttpOutputMessage outputMessage) throws I
      * @return the JSON encoding to use (never {@code null})
      */
     protected JsonEncoding getJsonEncoding(MediaType contentType) {
-        if (contentType != null && contentType.getCharSet() != null) {
-            Charset charset = contentType.getCharSet();
+        if (contentType != null && contentType.getCharset() != null) {
+            Charset charset = contentType.getCharset();
             for (JsonEncoding encoding : JsonEncoding.values()) {
                 if (charset.name()
                         .equals(encoding.getJavaName())) {
diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/siren/SirenUtils.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/siren/SirenUtils.java
index 4a086e54..18f2ea7c 100644
--- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/siren/SirenUtils.java
+++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/siren/SirenUtils.java
@@ -1,8 +1,5 @@
 package de.escalon.hypermedia.spring.siren;
 
-import java.beans.BeanInfo;
-import java.beans.IntrospectionException;
-import java.beans.Introspector;
 import java.beans.PropertyDescriptor;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Constructor;
@@ -25,7 +22,8 @@
 import de.escalon.hypermedia.spring.SpringActionInputParameter;
 import org.springframework.core.MethodParameter;
 import org.springframework.hateoas.*;
-import org.springframework.hateoas.core.DefaultRelProvider;
+import org.springframework.hateoas.server.LinkRelationProvider;
+import org.springframework.hateoas.server.core.DefaultLinkRelationProvider;
 import org.springframework.util.Assert;
 import org.springframework.util.ObjectUtils;
 
@@ -38,9 +36,9 @@ public class SirenUtils {
             "id"));
     private String requestMediaType;
 
-    private Set navigationalRels = new HashSet(Arrays.asList("self", "next", "previous", "prev"));
+    private final Set navigationalRels = new HashSet<>(Arrays.asList("self", "next", "previous", "prev"));
 
-    private RelProvider relProvider = new DefaultRelProvider();
+    private LinkRelationProvider relProvider = new DefaultLinkRelationProvider();
 
     private DocumentationProvider documentationProvider = new DefaultDocumentationProvider();
 
@@ -49,8 +47,8 @@ public void toSirenEntity(SirenEntityContainer objectNode, Object object) {
             return;
         }
         try {
-            if (object instanceof Resource) {
-                Resource resource = (Resource) object;
+            if (object instanceof EntityModel) {
+                EntityModel resource = (EntityModel) object;
                 objectNode.setLinks(this.toSirenLinks(
                         getNavigationalLinks(resource.getLinks())));
                 objectNode.setEmbeddedLinks(this.toSirenEmbeddedLinks(
@@ -58,25 +56,23 @@ public void toSirenEntity(SirenEntityContainer objectNode, Object object) {
                 objectNode.setActions(this.toSirenActions(getActions(resource.getLinks())));
                 toSirenEntity(objectNode, resource.getContent());
                 return;
-            } else if (object instanceof Resources) {
-                Resources resources = (Resources) object;
-
-                objectNode.setLinks(this.toSirenLinks(getNavigationalLinks(resources.getLinks())));
+            } else if (object instanceof CollectionModel) {
+                CollectionModel resources = (CollectionModel) object;
+                objectNode.setLinks(this.toSirenLinks(
+                        getNavigationalLinks(resources.getLinks())));
                 Collection content = resources.getContent();
                 toSirenEntity(objectNode, content);
                 objectNode.setActions(this.toSirenActions(getActions(resources.getLinks())));
                 return;
-            } else if (object instanceof ResourceSupport) {
-                ResourceSupport resource = (ResourceSupport) object;
+            } else if (object instanceof RepresentationModel) {
+                RepresentationModel resource = (RepresentationModel) object;
                 objectNode.setLinks(this.toSirenLinks(
                         getNavigationalLinks(resource.getLinks())));
                 objectNode.setEmbeddedLinks(this.toSirenEmbeddedLinks(
                         getEmbeddedLinks(resource.getLinks())));
                 objectNode.setActions(this.toSirenActions(
                         getActions(resource.getLinks())));
-
                 // wrap object attributes below to avoid endless loop
-
             } else if (object instanceof Collection) {
                 Collection collection = (Collection) object;
                 for (Object item : collection) {
@@ -98,7 +94,7 @@ public void toSirenEntity(SirenEntityContainer objectNode, Object object) {
                     String docUrl = documentationProvider.getDocumentationUrl(key, content);
                     traverseAttribute(objectNode, propertiesNode, key, docUrl, content);
                 }
-            } else { // bean or ResourceSupport
+            } else { // bean or RepresentationModel
                 objectNode.setSirenClasses(getSirenClasses(object));
                 Map propertiesNode = new HashMap();
                 createRecursiveSirenEntitiesFromPropertiesAndFields(objectNode, propertiesNode, object);
@@ -111,7 +107,7 @@ public void toSirenEntity(SirenEntityContainer objectNode, Object object) {
 
     private List getSirenClasses(Object object) {
         List sirenClasses;
-        String sirenClass = relProvider.getItemResourceRelFor(object.getClass());
+        String sirenClass = relProvider.getItemResourceRelFor(object.getClass()).value();
         if (sirenClass != null) {
             sirenClasses = Collections.singletonList(sirenClass);
         } else {
@@ -120,8 +116,8 @@ private List getSirenClasses(Object object) {
         return sirenClasses;
     }
 
-    private List getEmbeddedLinks(List links) {
-        List ret = new ArrayList();
+    private List getEmbeddedLinks(Links links) {
+        List ret = new ArrayList<>();
         for (Link link : links) {
             if (!navigationalRels.contains(link.getRel())) {
                 if (link instanceof Affordance) {
@@ -143,17 +139,17 @@ private List getEmbeddedLinks(List links) {
         return ret;
     }
 
-    private List getNavigationalLinks(List links) {
-        List ret = new ArrayList();
+    private List getNavigationalLinks(Links links) {
+        List ret = new ArrayList<>();
         for (Link link : links) {
-            if (navigationalRels.contains(link.getRel())) {
+            if (navigationalRels.contains(link.getRel().value())) {
                 ret.add(link);
             }
         }
         return ret;
     }
 
-    private List getActions(List links) {
+    private List getActions(Links links) {
         List ret = new ArrayList();
         for (Link link : links) {
             if (link instanceof Affordance) {
@@ -221,9 +217,9 @@ private void traverseAttribute(SirenEntityContainer objectNode, Map collection = (Collection) content;
@@ -262,16 +258,16 @@ private void traverseSingleSubEntity(SirenEntityContainer objectNode, Object con
             throws InvocationTargetException, IllegalAccessException {
 
         Object bean;
-        List links;
-        if (content instanceof Resource) {
-            bean = ((Resource) content).getContent();
-            links = ((Resource) content).getLinks();
-        } else if (content instanceof ResourceSupport) {
+        Links links;
+        if (content instanceof EntityModel) {
+            bean = ((EntityModel) content).getContent();
+            links = ((EntityModel) content).getLinks();
+        } else if (content instanceof RepresentationModel) {
             bean = content;
-            links = ((ResourceSupport) content).getLinks();
+            links = ((RepresentationModel) content).getLinks();
         } else {
             bean = content;
-            links = Collections.emptyList();
+            links = Links.NONE;
         }
 
         Map properties = new HashMap();
@@ -326,7 +322,7 @@ private List toSirenActions(List links) {
                 }
                 // no support for non-query fields in siren
                 if (queryOnly) {
-                    String baseUri = new UriTemplate(link.getHref()).expand()
+                    String baseUri = UriTemplate.of(link.getHref()).expand()
                             .toASCIIString();
                     SirenAction sirenAction = new SirenAction(null, null, null, "GET",
                             baseUri, null, fields);
@@ -483,8 +479,8 @@ private void addSirenFieldsForMethodParameter(List sirenFields, Meth
             }
         } else {
             Object callValueBean;
-            if (propertyValue instanceof Resource) {
-                callValueBean = ((Resource) propertyValue).getContent();
+            if (propertyValue instanceof EntityModel) {
+                callValueBean = ((EntityModel) propertyValue).getContent();
             } else {
                 callValueBean = propertyValue;
             }
@@ -542,7 +538,7 @@ private List toSirenLinks(List links) {
             if (link instanceof Affordance) {
                 ret.add(new SirenLink(null, ((Affordance) link).getRels(), link.getHref(), null, null));
             } else {
-                ret.add(new SirenLink(null, Collections.singletonList(link.getRel()), link.getHref(), null, null));
+                ret.add(new SirenLink(null, Collections.singletonList(link.getRel().value()), link.getHref(), null, null));
             }
         }
         return ret;
@@ -556,7 +552,7 @@ private List toSirenEmbeddedLinks(List links) {
                 ret.add(new SirenEmbeddedLink(null, ((Affordance) link).getRels(), link
                         .getHref(), null, null));
             } else {
-                ret.add(new SirenEmbeddedLink(null, Collections.singletonList(link.getRel()), link
+                ret.add(new SirenEmbeddedLink(null, Collections.singletonList(link.getRel().value()), link
                         .getHref(), null, null));
             }
         }
@@ -585,7 +581,7 @@ public void setRequestMediaType(String requestMediaType) {
         this.requestMediaType = requestMediaType;
     }
 
-    public void setRelProvider(RelProvider relProvider) {
+    public void setRelProvider(LinkRelationProvider relProvider) {
         this.relProvider = relProvider;
     }
 
diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/AbstractUberNode.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/AbstractUberNode.java
index bd69e99a..5693d620 100644
--- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/AbstractUberNode.java
+++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/AbstractUberNode.java
@@ -27,7 +27,7 @@
 
 public abstract class AbstractUberNode implements Iterable {
 
-    protected List data = new ArrayList();
+    protected List data = new ArrayList<>();
 
     public AbstractUberNode() {
         super();
@@ -45,8 +45,8 @@ public void addData(UberNode item) {
     public void addLink(Link link) {
         List actionDescriptors = UberUtils.getActionDescriptors(link);
         List rels = UberUtils.getRels(link);
-        PartialUriTemplateComponents partialUriTemplateComponents = new PartialUriTemplate(link.getHref()).expand
-                (Collections.emptyMap());
+        PartialUriTemplateComponents partialUriTemplateComponents = new PartialUriTemplate(link.getHref())
+            .expand(Collections.emptyMap());
         for (ActionDescriptor actionDescriptor : actionDescriptors) {
             UberNode uberLink = UberUtils.toUberLink(link.getHref(), actionDescriptor, rels);
             data.add(uberLink);
diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/NullValueSerializer.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/NullValueSerializer.java
index d31ae23b..ef260201 100644
--- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/NullValueSerializer.java
+++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/NullValueSerializer.java
@@ -13,22 +13,20 @@
 
 package de.escalon.hypermedia.spring.uber;
 
-import com.fasterxml.jackson.core.JsonGenerationException;
+import java.io.IOException;
+
 import com.fasterxml.jackson.core.JsonGenerator;
 import com.fasterxml.jackson.databind.SerializerProvider;
-import com.fasterxml.jackson.databind.ser.std.NonTypedScalarSerializerBase;
-
-import java.io.IOException;
+import com.fasterxml.jackson.databind.ser.std.StdSerializer;
 
-public class NullValueSerializer extends NonTypedScalarSerializerBase {
+public class NullValueSerializer extends StdSerializer {
 
     protected NullValueSerializer() {
         super(UberNode.NullValue.class);
     }
 
     @Override
-    public void serialize(UberNode.NullValue value, JsonGenerator jgen, SerializerProvider provider) throws IOException,
-            JsonGenerationException {
+    public void serialize(UberNode.NullValue value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
         jgen.writeNull();
     }
 }
diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/UberJackson2HttpMessageConverter.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/UberJackson2HttpMessageConverter.java
index 2b5ed3d0..75b67534 100644
--- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/UberJackson2HttpMessageConverter.java
+++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/UberJackson2HttpMessageConverter.java
@@ -19,7 +19,7 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.SerializationFeature;
 import de.escalon.hypermedia.spring.HypermediaTypes;
-import org.springframework.hateoas.ResourceSupport;
+import org.springframework.hateoas.RepresentationModel;
 import org.springframework.http.HttpInputMessage;
 import org.springframework.http.HttpOutputMessage;
 import org.springframework.http.MediaType;
@@ -46,7 +46,7 @@ public UberJackson2HttpMessageConverter() {
     @Override
     protected boolean supports(Class clazz) {
         final boolean ret;
-        if (ResourceSupport.class.isAssignableFrom(clazz)
+        if (RepresentationModel.class.isAssignableFrom(clazz)
                 || Collection.class.isAssignableFrom(clazz) || Map.class.isAssignableFrom(clazz)) {
             ret = true;
         } else {
@@ -93,8 +93,8 @@ protected void writeInternal(Object t, HttpOutputMessage outputMessage) throws I
      * @return the JSON encoding to use (never {@code null})
      */
     protected JsonEncoding getJsonEncoding(MediaType contentType) {
-        if (contentType != null && contentType.getCharSet() != null) {
-            Charset charset = contentType.getCharSet();
+        if (contentType != null && contentType.getCharset() != null) {
+            Charset charset = contentType.getCharset();
             for (JsonEncoding encoding : JsonEncoding.values()) {
                 if (charset.name()
                         .equals(encoding.getJavaName())) {
diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/UberJsonLinkDiscoverer.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/UberJsonLinkDiscoverer.java
index 2cc2b1e4..ed1a180b 100644
--- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/UberJsonLinkDiscoverer.java
+++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/UberJsonLinkDiscoverer.java
@@ -14,7 +14,7 @@
 package de.escalon.hypermedia.spring.uber;
 
 import de.escalon.hypermedia.spring.HypermediaTypes;
-import org.springframework.hateoas.core.JsonPathLinkDiscoverer;
+import org.springframework.hateoas.client.JsonPathLinkDiscoverer;
 
 public class UberJsonLinkDiscoverer extends JsonPathLinkDiscoverer {
 
diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/UberUtils.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/UberUtils.java
index c1f8f1f0..1e1f04af 100644
--- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/UberUtils.java
+++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/uber/UberUtils.java
@@ -23,9 +23,9 @@
 import de.escalon.hypermedia.spring.SpringActionInputParameter;
 import org.springframework.core.MethodParameter;
 import org.springframework.hateoas.Link;
-import org.springframework.hateoas.Resource;
-import org.springframework.hateoas.ResourceSupport;
-import org.springframework.hateoas.Resources;
+import org.springframework.hateoas.EntityModel;
+import org.springframework.hateoas.RepresentationModel;
+import org.springframework.hateoas.CollectionModel;
 import org.springframework.util.Assert;
 import org.springframework.web.bind.annotation.RequestMethod;
 
@@ -63,13 +63,13 @@ public static void toUberData(AbstractUberNode objectNode, Object object) {
 
         try {
             // TODO: move all returns to else branch of property descriptor handling
-            if (object instanceof Resource) {
-                Resource resource = (Resource) object;
+            if (object instanceof EntityModel) {
+                EntityModel resource = (EntityModel) object;
                 objectNode.addLinks(resource.getLinks());
                 toUberData(objectNode, resource.getContent());
                 return;
-            } else if (object instanceof Resources) {
-                Resources resources = (Resources) object;
+            } else if (object instanceof CollectionModel) {
+                CollectionModel resources = (CollectionModel) object;
 
                 // TODO set name using EVO see HypermediaSupportBeanDefinitionRegistrar
 
@@ -78,8 +78,8 @@ public static void toUberData(AbstractUberNode objectNode, Object object) {
                 Collection content = resources.getContent();
                 toUberData(objectNode, content);
                 return;
-            } else if (object instanceof ResourceSupport) {
-                ResourceSupport resource = (ResourceSupport) object;
+            } else if (object instanceof RepresentationModel) {
+                RepresentationModel resource = (RepresentationModel) object;
 
                 objectNode.addLinks(resource.getLinks());
 
@@ -231,15 +231,12 @@ public static UberNode toUberLink(String href, ActionDescriptor actionDescriptor
         Assert.notNull(actionDescriptor, "actionDescriptor must not be null");
         UberNode uberLink = new UberNode();
         uberLink.setRel(rels);
-        PartialUriTemplateComponents partialUriTemplateComponents = new PartialUriTemplate(href).expand(Collections
-                .emptyMap());
+        PartialUriTemplateComponents partialUriTemplateComponents = new PartialUriTemplate(href).expand(Collections.emptyMap());
         uberLink.setUrl(partialUriTemplateComponents.toString());
         uberLink.setTemplated(partialUriTemplateComponents.hasVariables() ? Boolean.TRUE : null);
         uberLink.setModel(getModelProperty(href, actionDescriptor));
-        if (actionDescriptor != null) {
-            RequestMethod requestMethod = RequestMethod.valueOf(actionDescriptor.getHttpMethod());
-            uberLink.setAction(UberAction.forRequestMethod(requestMethod));
-        }
+        RequestMethod requestMethod = RequestMethod.valueOf(actionDescriptor.getHttpMethod());
+        uberLink.setAction(UberAction.forRequestMethod(requestMethod));
         return uberLink;
     }
 
@@ -458,7 +455,7 @@ public static List getRels(Link link) {
         if (link instanceof Affordance) {
             rels = ((Affordance) link).getRels();
         } else {
-            rels = Arrays.asList(link.getRel());
+            rels = Arrays.asList(link.getRel().value());
         }
         return rels;
     }
@@ -486,8 +483,8 @@ private static void addUberFieldsForMethodParameter(List fields, Meth
             }
         } else {
             Object callValueBean;
-            if (propertyValue instanceof Resource) {
-                callValueBean = ((Resource) propertyValue).getContent();
+            if (propertyValue instanceof EntityModel) {
+                callValueBean = ((EntityModel) propertyValue).getContent();
             } else {
                 callValueBean = propertyValue;
             }
diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/xhtml/XhtmlResourceMessageConverter.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/xhtml/XhtmlResourceMessageConverter.java
index b139d418..e6fa612e 100644
--- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/xhtml/XhtmlResourceMessageConverter.java
+++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/xhtml/XhtmlResourceMessageConverter.java
@@ -19,9 +19,9 @@
 import de.escalon.hypermedia.affordance.DataType;
 import de.escalon.hypermedia.spring.DefaultDocumentationProvider;
 import de.escalon.hypermedia.spring.DocumentationProvider;
-import org.springframework.hateoas.Resource;
-import org.springframework.hateoas.ResourceSupport;
-import org.springframework.hateoas.Resources;
+import org.springframework.hateoas.EntityModel;
+import org.springframework.hateoas.RepresentationModel;
+import org.springframework.hateoas.CollectionModel;
 import org.springframework.http.HttpInputMessage;
 import org.springframework.http.HttpOutputMessage;
 import org.springframework.http.MediaType;
@@ -46,7 +46,7 @@
 
 /**
  * Message converter which represents a restful API as xhtml which can be used by the browser or a rest client. Converts
- * java beans and spring-hateoas Resources to xhtml and maps the body of x-www-form-urlencoded requests to RequestBody
+ * java beans and spring-hateoas CollectionModel to xhtml and maps the body of x-www-form-urlencoded requests to RequestBody
  * method parameters. The media-type xhtml does not officially support methods other than GET or POST, therefore we must
  * "tunnel" other methods when this converter is used with the browser. Spring's {@link
  * org.springframework.web.filter.HiddenHttpMethodFilter} allows to do that with relative ease.
@@ -106,7 +106,7 @@ protected Object readInternal(Class clazz, HttpInputMessage inputMessage) thr
             // TODO recognize this more safely or make the filter mandatory
             MediaType contentType = inputMessage.getHeaders()
                     .getContentType();
-            Charset charset = contentType.getCharSet() != null ? contentType.getCharSet() : this.charset;
+            Charset charset = contentType.getCharset() != null ? contentType.getCharset() : this.charset;
             ServletServerHttpRequest servletServerHttpRequest = (ServletServerHttpRequest) inputMessage;
             HttpServletRequest servletRequest = servletServerHttpRequest.getServletRequest();
             is = getBodyFromServletRequestParameters(servletRequest, charset.displayName(Locale.US));
@@ -284,16 +284,16 @@ private void writeResource(XhtmlWriter writer, Object object) {
             return;
         }
         try {
-            if (object instanceof Resource) {
-                Resource resource = (Resource) object;
+            if (object instanceof EntityModel) {
+                EntityModel resource = (EntityModel) object;
                 writer.beginListItem();
 
                 writeResource(writer, resource.getContent());
                 writer.writeLinks(resource.getLinks());
 
                 writer.endListItem();
-            } else if (object instanceof Resources) {
-                Resources resources = (Resources) object;
+            } else if (object instanceof CollectionModel) {
+                CollectionModel resources = (CollectionModel) object;
                 // TODO set name using EVO see HypermediaSupportBeanDefinitionRegistrar
 
                 writer.beginListItem();
@@ -306,8 +306,8 @@ private void writeResource(XhtmlWriter writer, Object object) {
                 writer.writeLinks(resources.getLinks());
 
                 writer.endListItem();
-            } else if (object instanceof ResourceSupport) {
-                ResourceSupport resource = (ResourceSupport) object;
+            } else if (object instanceof RepresentationModel) {
+                RepresentationModel resource = (RepresentationModel) object;
                 writer.beginListItem();
 
                 writeObject(writer, resource);
@@ -319,7 +319,7 @@ private void writeResource(XhtmlWriter writer, Object object) {
                 for (Object item : collection) {
                     writeResource(writer, item);
                 }
-            } else { // TODO: write li for simple objects in Resources Collection
+            } else { // TODO: write li for simple objects in CollectionModel Collection
                 writeObject(writer, object);
             }
         } catch (Exception ex) {
diff --git a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/xhtml/XhtmlWriter.java b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/xhtml/XhtmlWriter.java
index f8b87aa8..679da984 100644
--- a/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/xhtml/XhtmlWriter.java
+++ b/spring-hateoas-ext/src/main/java/de/escalon/hypermedia/spring/xhtml/XhtmlWriter.java
@@ -15,6 +15,7 @@
 import org.springframework.core.MethodParameter;
 import org.springframework.core.convert.Property;
 import org.springframework.hateoas.Link;
+import org.springframework.hateoas.Links;
 import org.springframework.hateoas.TemplateVariable;
 import org.springframework.util.Assert;
 import org.springframework.util.ObjectUtils;
@@ -246,7 +247,7 @@ public static OptionalAttributes attr() {
     }
 
 
-    public void writeLinks(List links) throws IOException {
+    public void writeLinks(Links links) throws IOException {
         for (Link link : links) {
 
             if (link instanceof Affordance) {
@@ -279,7 +280,7 @@ public void writeLinks(List links) throws IOException {
                                 // GET without params is simple 
                                 writeAnchor(OptionalAttributes.attr("href", affordance.expand()
                                         .getHref())
-                                        .and("rel", affordance.getRel()), affordance.getRel());
+                                        .and("rel", affordance.getRel().value()), affordance.getRel().value());
                                 endDiv();
                             } else {
                                 appendForm(affordance, actionDescriptor);
@@ -384,11 +385,11 @@ private void appendLinkWithoutActionDescriptor(Link link) throws IOException {
                 input(variableName, Type.TEXT);
             }
         } else {
-            String rel = link.getRel();
+            String rel = link.getRel().value();
             String title = (rel != null ? rel : link.getHref());
             // TODO: write html  instead of anchor   here?
             writeAnchor(OptionalAttributes.attr("href", link.getHref())
-                    .and("rel", link.getRel()), title);
+                    .and("rel", link.getRel().value()), title);
         }
     }
 
diff --git a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/affordance/AffordanceTest.java b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/affordance/AffordanceTest.java
index f0130555..b3f8133b 100644
--- a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/affordance/AffordanceTest.java
+++ b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/affordance/AffordanceTest.java
@@ -16,6 +16,7 @@
 import org.hamcrest.Matchers;
 import org.junit.Assert;
 import org.junit.Test;
+import org.springframework.hateoas.LinkRelation;
 
 import java.util.HashMap;
 import java.util.Map;
@@ -38,7 +39,7 @@ public void testConstructorWithoutRels() {
     public void testConstructorWithSingleRel() {
         final Affordance affordance = new Affordance("http://localhost/things/{id}", "thing");
         assertEquals("http://localhost/things/{id}", affordance.getHref());
-        assertEquals("thing", affordance.getRel());
+        assertEquals(LinkRelation.of("thing"), affordance.getRel());
         Assert.assertThat(affordance.getRels(), Matchers.contains("thing"));
     }
 
@@ -47,7 +48,7 @@ public void testConstructorWithRels() {
         final Affordance affordance = new Affordance("http://localhost/things/{id}",
                 "start", "http://example.net/relation/other");
         assertEquals("http://localhost/things/{id}", affordance.getHref());
-        assertEquals("start", affordance.getRel());
+        assertEquals(LinkRelation.of("start"), affordance.getRel());
         Assert.assertThat(affordance.getRels(), Matchers.contains("start", "http://example.net/relation/other"));
     }
 
diff --git a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/AffordanceBuilderFactoryTest.java b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/AffordanceBuilderFactoryTest.java
index 14f7b91e..51ba3aa0 100644
--- a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/AffordanceBuilderFactoryTest.java
+++ b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/AffordanceBuilderFactoryTest.java
@@ -17,8 +17,8 @@
 import de.escalon.hypermedia.affordance.Affordance;
 import org.junit.Before;
 import org.junit.Test;
-import org.springframework.hateoas.Resource;
-import org.springframework.hateoas.Resources;
+import org.springframework.hateoas.EntityModel;
+import org.springframework.hateoas.CollectionModel;
 import org.springframework.mock.web.MockHttpServletRequest;
 import org.springframework.mock.web.MockServletContext;
 import org.springframework.stereotype.Controller;
@@ -32,6 +32,7 @@
 
 import java.lang.reflect.Method;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
 
 import static org.junit.Assert.assertEquals;
@@ -55,8 +56,8 @@ enum EventStatus {
     static class EventControllerSample {
 
         static class EventQbe {
-            List description = Arrays.asList("concert");
-            List status = Arrays.asList(EventStatus.SCHEDULED);
+            List description = Collections.singletonList("concert");
+            List status = Collections.singletonList(EventStatus.SCHEDULED);
 
             public void setStatus(List status) {
                 this.status = status;
@@ -80,38 +81,37 @@ public List getDescription() {
         @RequestMapping(value = "/{eventId}", method = RequestMethod.GET)
         public
         @ResponseBody
-        Resource getEvent(@PathVariable String eventId) {
+        EntityModel getEvent(@PathVariable String eventId) {
             return null;
         }
 
         @RequestMapping(value = "/query", method = RequestMethod.GET)
         public
         @ResponseBody
-        Resources queryEvent(@Input EventQbe query) {
+        CollectionModel queryEvent(@Input EventQbe query) {
             return null;
         }
 
         @RequestMapping(value = "/simplequery", method = RequestMethod.GET)
         public
         @ResponseBody
-        Resources simpleQueryEvent(@RequestParam("q") String query,
-                                           @RequestParam(value = "offset", defaultValue = "0") Long offset) {
+        CollectionModel simpleQueryEvent(
+            @RequestParam("q") String query,
+            @RequestParam(value = "offset", defaultValue = "0") Long offset) {
             return null;
         }
 
-
-
         @RequestMapping(value = "/queryexcludes", method = RequestMethod.GET)
         public
         @ResponseBody
-        Resources queryEventWithExcludes(@Input(exclude = "status") EventQbe query) {
+        CollectionModel queryEventWithExcludes(@Input(exclude = "status") EventQbe query) {
             return null;
         }
 
         @RequestMapping(value = "/queryincludes", method = RequestMethod.GET)
         public
         @ResponseBody
-        Resources queryEventWithIncludes(@Input(include = "status") EventQbe query) {
+        CollectionModel queryEventWithIncludes(@Input(include = "status") EventQbe query) {
             return null;
         }
 
@@ -119,7 +119,7 @@ Resources queryEventWithIncludes(@Input(include = "status") EventQbe que
         @RequestMapping(value = "/querymap", method = RequestMethod.GET)
         public
         @ResponseBody
-        Resources queryEventByMap(@Input(include = "description", hidden = "status", readOnly = "donttouch")
+        CollectionModel queryEventByMap(@Input(include = "description", hidden = "status", readOnly = "donttouch")
                                           MultiValueMap query) {
             return null;
         }
@@ -128,14 +128,14 @@ Resources queryEventByMap(@Input(include = "description", hidden = "stat
         @RequestMapping(value = "/wrongqueryinclude", method = RequestMethod.GET)
         public
         @ResponseBody
-        Resources queryEventWithWrongInclude(@Input(include = "foo") EventQbe query) {
+        CollectionModel queryEventWithWrongInclude(@Input(include = "foo") EventQbe query) {
             return null;
         }
 
         @RequestMapping(value = "/wrongqueryexclude", method = RequestMethod.GET)
         public
         @ResponseBody
-        Resources queryEventWithWrongExclude(@Input(exclude = "foo") EventQbe query) {
+        CollectionModel queryEventWithWrongExclude(@Input(exclude = "foo") EventQbe query) {
             return null;
         }
     }
@@ -169,8 +169,9 @@ public void testLinkToMethodWithInputBean() throws Exception {
 
     @Test
     public void testLinkToMethodInvocation() throws Exception {
-        final Affordance affordance = factory.linkTo(AffordanceBuilder.methodOn(EventControllerSample.class)
-                .getEvent((String) null))
+        final Affordance affordance = factory.linkTo(
+            AffordanceBuilder.methodOn(EventControllerSample.class)
+                .getEvent(null))
                 .rel("foo")
                 .build();
         assertEquals("http://example.com/events/{eventId}", affordance.getHref());
@@ -187,11 +188,12 @@ public void testLinkToControllerClass() throws Exception {
     @Test
     public void testLinkToMethodNoArgsBuild() throws Exception {
         final Method getEventMethod = ReflectionUtils.findMethod(EventControllerSample.class, "getEvent", String.class);
+        assert getEventMethod != null;
         final Affordance affordance = factory.linkTo(getEventMethod, new Object[0])
                 .rel("foo")
                 .build();
         assertEquals("http://example.com/events/{eventId}", affordance.getHref());
-        assertEquals("foo", affordance.getRel());
+        assertEquals("foo", affordance.getRel().value());
     }
 
     @Test
@@ -202,7 +204,7 @@ public void testLinkToMethodInvocationNoArgsBuild() throws Exception {
                 .rel("foo")
                 .build();
         assertEquals("http://example.com/events/{eventId}", affordance.getHref());
-        assertEquals("foo", affordance.getRel());
+        assertEquals("foo", affordance.getRel().value());
     }
 
     @Test
@@ -213,7 +215,7 @@ public void testLinkToMethodInvocationBeanInput() throws Exception {
                 .rel("foo")
                 .build();
         assertEquals("http://example.com/events/query{?description,status}", affordance.getHref());
-        assertEquals("foo", affordance.getRel());
+        assertEquals("foo", affordance.getRel().value());
     }
 
     @Test
@@ -228,7 +230,7 @@ public void testLinkToMethodInvocationNamedRequestParam() throws Exception {
         // full uritemplate
         assertEquals("http://example.com/events/simplequery{?q,offset}",
                 affordance.getUriTemplateComponents().toString());
-        assertEquals("foo", affordance.getRel());
+        assertEquals("foo", affordance.getRel().value());
     }
 
     @Test
@@ -243,7 +245,7 @@ public void testLinkToMethodInvocationNamedRequestParamWithValue() throws Except
         // full uritemplate
         assertEquals("http://example.com/events/simplequery?q=foo{&offset}",
                 affordance.getUriTemplateComponents().toString());
-        assertEquals("foo", affordance.getRel());
+        assertEquals("foo", affordance.getRel().value());
     }
 
     @Test
@@ -258,7 +260,7 @@ public void testLinkToMethodInvocationNamedRequestParamWithAllValues() throws Ex
         // full uritemplate with all values
         assertEquals("http://example.com/events/simplequery?q=foo&offset=2",
                 affordance.getUriTemplateComponents().toString());
-        assertEquals("foo", affordance.getRel());
+        assertEquals("foo", affordance.getRel().value());
     }
 
 
@@ -270,7 +272,7 @@ public void testLinkToMethodInvocationBeanInputWithExcludes() throws Exception {
                 .rel("foo")
                 .build();
         assertEquals("http://example.com/events/queryexcludes{?description}", affordance.getHref());
-        assertEquals("foo", affordance.getRel());
+        assertEquals("foo", affordance.getRel().value());
     }
 
     @Test
@@ -281,7 +283,7 @@ public void testLinkToMethodInvocationBeanInputWithIncludes() throws Exception {
                 .rel("foo")
                 .build();
         assertEquals("http://example.com/events/queryincludes{?status}", affordance.getHref());
-        assertEquals("foo", affordance.getRel());
+        assertEquals("foo", affordance.getRel().value());
     }
 
     @Test
@@ -292,7 +294,7 @@ public void testLinkToMethodInvocationMapInput() throws Exception {
                 .rel("foo")
                 .build();
         assertEquals("http://example.com/events/querymap{?description,status,donttouch}", affordance.getHref());
-        assertEquals("foo", affordance.getRel());
+        assertEquals("foo", affordance.getRel().value());
     }
 
     @Test(expected = IllegalStateException.class)
@@ -321,7 +323,7 @@ public void testLinkToControllerClassNoArgsBuild() throws Exception {
                 .rel("foo")
                 .build();
         assertEquals("http://example.com/events", affordance.getHref());
-        assertEquals("foo", affordance.getRel());
+        assertEquals("foo", affordance.getRel().value());
     }
 
     @Test
@@ -333,6 +335,6 @@ public void testLinkToMethodInvocationReverseRel() throws Exception {
                 .build();
         assertEquals("http://example.com/events/{eventId}", affordance.getHref());
         assertEquals("schema:parent", affordance.getRev());
-        assertEquals("ex:children", affordance.getRel());
+        assertEquals("ex:children", affordance.getRel().value());
     }
 }
\ No newline at end of file
diff --git a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/sample/test/DummyEventController.java b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/sample/test/DummyEventController.java
index ac8e8f12..46d22bee 100644
--- a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/sample/test/DummyEventController.java
+++ b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/sample/test/DummyEventController.java
@@ -14,8 +14,8 @@
 package de.escalon.hypermedia.spring.sample.test;
 
 import de.escalon.hypermedia.affordance.Affordance;
-import org.springframework.hateoas.Resource;
-import org.springframework.hateoas.Resources;
+import org.springframework.hateoas.EntityModel;
+import org.springframework.hateoas.CollectionModel;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Controller;
@@ -47,11 +47,11 @@ public ResponseEntity addEvent(@RequestBody Event event) {
     @RequestMapping(method = RequestMethod.GET)
     public
     @ResponseBody
-    Resources> getResourcesOfResourceOfEvent() {
-        List> eventResourcesList = new ArrayList>();
+    CollectionModel> getResourcesOfResourceOfEvent() {
+        List> eventResourcesList = new ArrayList>();
         // each resource has links
         for (Event event : getEvents()) {
-            Resource eventResource = new Resource(event);
+            EntityModel eventResource = new EntityModel(event);
             eventResource.add(linkTo(methodOn(this.getClass())
                     .getEvent(event.id))
                     .and(linkTo(methodOn(this.getClass())
@@ -75,7 +75,7 @@ Resources> getResourcesOfResourceOfEvent() {
                 methodOn(this.getClass()).getEventWithRegexPathVariableMapping(null)).withRel("ex:regex");
         final Affordance postEventAffordance = linkTo(methodOn(this.getClass()).addEvent(null)).withSelfRel();
 
-        return new Resources>(eventResourcesList,
+        return new CollectionModel>(eventResourcesList,
                 eventByNameAffordance, eventWithRegexAffordance, postEventAffordance);
     }
 
@@ -83,10 +83,10 @@ Resources> getResourcesOfResourceOfEvent() {
     @RequestMapping("/list")
     public
     @ResponseBody
-    List> getListOfResourceOfEvent() {
-        List> eventResourcesList = new ArrayList>();
+    List> getListOfResourceOfEvent() {
+        List> eventResourcesList = new ArrayList>();
         for (Event event : getEvents()) {
-            Resource eventResource = new Resource(event);
+            EntityModel eventResource = new EntityModel(event);
             eventResource.add(linkTo(this.getClass()).slash(event.id)
                     .withSelfRel());
             eventResource.add(linkTo(methodOn(ReviewController.class)
@@ -102,8 +102,8 @@ List> getListOfResourceOfEvent() {
     @RequestMapping(value = "/{eventId}", method = RequestMethod.GET)
     public
     @ResponseBody
-    Resource getEvent(@PathVariable Integer eventId) {
-        Resource resource = new Resource(getEvents().get(eventId));
+    EntityModel getEvent(@PathVariable Integer eventId) {
+        EntityModel resource = new EntityModel(getEvents().get(eventId));
         resource.add(linkTo(ReviewController.class).withRel("review"));
         return resource;
     }
@@ -111,8 +111,8 @@ Resource getEvent(@PathVariable Integer eventId) {
     @RequestMapping(value = "/regex/{eventId:.+}", method = RequestMethod.GET)
     public
     @ResponseBody
-    Resource getEventWithRegexPathVariableMapping(@PathVariable Integer eventId) {
-        Resource resource = new Resource(getEvents().get(eventId));
+    EntityModel getEventWithRegexPathVariableMapping(@PathVariable Integer eventId) {
+        EntityModel resource = new EntityModel(getEvents().get(eventId));
         resource.add(linkTo(ReviewController.class).withRel("review"));
         return resource;
     }
@@ -120,12 +120,12 @@ Resource getEventWithRegexPathVariableMapping(@PathVariable Integer event
     @RequestMapping(method = RequestMethod.GET, params = {"evtName"})
     public
     @ResponseBody
-    Resource findEventByName(@RequestParam("evtName") String eventName) {
-        Resource ret = null;
+    EntityModel findEventByName(@RequestParam("evtName") String eventName) {
+        EntityModel ret = null;
         for (Event event : getEvents()) {
             if (event.getWorkPerformed()
                     .getContent().name.startsWith(eventName)) {
-                Resource resource = new Resource(event);
+                EntityModel resource = new EntityModel(event);
                 resource.add(linkTo(ReviewController.class).withRel("review"));
                 ret = resource;
                 break;
diff --git a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/sample/test/Event.java b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/sample/test/Event.java
index dab67db1..8ef2924f 100644
--- a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/sample/test/Event.java
+++ b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/sample/test/Event.java
@@ -16,7 +16,7 @@
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import de.escalon.hypermedia.action.Select;
-import org.springframework.hateoas.Resource;
+import org.springframework.hateoas.EntityModel;
 
 /**
  * Sample Event. Created by dschulten on 11.09.2014.
@@ -28,13 +28,13 @@ public class Event {
     public final String location;
 
     private EventStatusType eventStatus;
-    private final Resource workPerformed;
+    private final EntityModel workPerformed;
     private String typicalAgeRange;
 
     public Event(int id, String performer, CreativeWork workPerformed, String location, EventStatusType eventStatus) {
         this.id = id;
         this.performer = performer;
-        this.workPerformed = new Resource(workPerformed);
+        this.workPerformed = new EntityModel(workPerformed);
         this.location = location;
         this.eventStatus = eventStatus;
     }
@@ -48,7 +48,7 @@ public Event(@JsonProperty("performer") String performer,
         this.id = 0;
         this.performer = performer;
         this.location = location;
-        this.workPerformed = new Resource(workPerformed);
+        this.workPerformed = new EntityModel(workPerformed);
         this.eventStatus = eventStatus;
         this.typicalAgeRange = typicalAgeRange;
     }
@@ -57,7 +57,7 @@ public void setEventStatus(EventStatusType eventStatus) {
         this.eventStatus = eventStatus;
     }
 
-    public Resource getWorkPerformed() {
+    public EntityModel getWorkPerformed() {
         return workPerformed;
     }
 
diff --git a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/sample/test/EventResource.java b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/sample/test/EventResource.java
index e6a75812..b1ee3ef9 100644
--- a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/sample/test/EventResource.java
+++ b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/sample/test/EventResource.java
@@ -13,12 +13,12 @@
 
 package de.escalon.hypermedia.spring.sample.test;
 
-import org.springframework.hateoas.ResourceSupport;
+import org.springframework.hateoas.RepresentationModel;
 
 /**
- * Sample Event derived from ResourceSupport. Created by dschulten on 13.09.2014.
+ * Sample Event derived from RepresentationModel. Created by dschulten on 13.09.2014.
  */
-public class EventResource extends ResourceSupport {
+public class EventResource extends RepresentationModel {
 
     public int id;
     public String performer;
diff --git a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/sample/test/ReviewController.java b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/sample/test/ReviewController.java
index 2dcb772f..0071a515 100644
--- a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/sample/test/ReviewController.java
+++ b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/sample/test/ReviewController.java
@@ -15,7 +15,7 @@
 
 import de.escalon.hypermedia.action.Action;
 import de.escalon.hypermedia.spring.AffordanceBuilder;
-import org.springframework.hateoas.Resources;
+import org.springframework.hateoas.CollectionModel;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
@@ -39,8 +39,8 @@ public class ReviewController {
 
     @RequestMapping(value = "/events/{eventId}", method = RequestMethod.GET)
     @ResponseBody
-    public Resources getReviews(@PathVariable int eventId, @RequestParam(required = false) String ratingValue) {
-        final Resources reviewResources = new Resources(reviews.get(eventId));
+    public CollectionModel getReviews(@PathVariable int eventId, @RequestParam(required = false) String ratingValue) {
+        final CollectionModel reviewResources = new CollectionModel(reviews.get(eventId));
         reviewResources.add(AffordanceBuilder.linkTo(AffordanceBuilder.methodOn(DummyEventController.class)
                 .getEvent((Integer) null)) // pass null to create template
                 .withRel("hydra:search"));
diff --git a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/siren/SirenMessageConverterTest.java b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/siren/SirenMessageConverterTest.java
index ddbae613..36fdabb5 100644
--- a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/siren/SirenMessageConverterTest.java
+++ b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/siren/SirenMessageConverterTest.java
@@ -16,10 +16,10 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.hateoas.Link;
-import org.springframework.hateoas.Resource;
-import org.springframework.hateoas.ResourceSupport;
-import org.springframework.hateoas.Resources;
-import org.springframework.hateoas.core.Relation;
+import org.springframework.hateoas.EntityModel;
+import org.springframework.hateoas.RepresentationModel;
+import org.springframework.hateoas.CollectionModel;
+import org.springframework.hateoas.server.core.Relation;
 import org.springframework.http.ResponseEntity;
 import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.test.context.ContextConfiguration;
@@ -77,7 +77,7 @@ public String getName() {
     static class DummyCustomersController {
 
         @RequestMapping("/{customerId}")
-        public ResponseEntity> getCustomer(@PathVariable String customerId) {
+        public ResponseEntity> getCustomer(@PathVariable String customerId) {
             return null;
         }
     }
@@ -111,14 +111,14 @@ public Integer getQuantity() {
         }
     }
 
-    class Order extends ResourceSupport {
+    class Order extends RepresentationModel {
 
         private final int orderNumber = 42;
         private final int itemCount = 3;
         private final String status = "pending";
 
-        private final Resource customer =
-                new Resource(new Customer());
+        private final EntityModel customer =
+                new EntityModel(new Customer());
 
         public Order() {
             customer.add(linkTo(methodOn(DummyCustomersController.class)
@@ -139,7 +139,7 @@ public String getStatus() {
             return status;
         }
 
-        public Resource getCustomer() {
+        public EntityModel getCustomer() {
             return customer;
         }
     }
@@ -149,12 +149,12 @@ public Resource getCustomer() {
     static class DummyOrderController {
 
         @RequestMapping("/{orderNumber}")
-        public ResponseEntity> getOrder(@PathVariable int orderNumber) {
+        public ResponseEntity> getOrder(@PathVariable int orderNumber) {
             return null;
         }
 
         @RequestMapping("/{orderNumber}/items")
-        public ResponseEntity> getOrderItems(@PathVariable int orderNumber) {
+        public ResponseEntity> getOrderItems(@PathVariable int orderNumber) {
             return null;
         }
 
@@ -164,7 +164,7 @@ public ResponseEntity addOrderItems(@PathVariable int orderNumber, @Reques
         }
 
         @RequestMapping
-        public ResponseEntity> getOrders(@RequestParam("a") List attr) {
+        public ResponseEntity> getOrders(@RequestParam("a") List attr) {
             return null;
         }
     }
diff --git a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/siren/SirenUtilsTest.java b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/siren/SirenUtilsTest.java
index c0222d1e..ee8b1830 100644
--- a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/siren/SirenUtilsTest.java
+++ b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/siren/SirenUtilsTest.java
@@ -6,12 +6,12 @@
 import org.junit.Before;
 import org.junit.Test;
 import org.springframework.hateoas.Link;
-import org.springframework.hateoas.PagedResources;
-import org.springframework.hateoas.PagedResources.PageMetadata;
-import org.springframework.hateoas.Resource;
-import org.springframework.hateoas.Resources;
-import org.springframework.hateoas.core.EmbeddedWrapper;
-import org.springframework.hateoas.core.Relation;
+import org.springframework.hateoas.PagedModel;
+import org.springframework.hateoas.PagedModel.PageMetadata;
+import org.springframework.hateoas.EntityModel;
+import org.springframework.hateoas.CollectionModel;
+import org.springframework.hateoas.server.core.EmbeddedWrapper;
+import org.springframework.hateoas.server.core.Relation;
 
 import java.util.*;
 
@@ -119,9 +119,9 @@ public class ProfileResource {
         private final String firstName;
         private final String lastName;
         @JsonUnwrapped
-        private final Resources embeddeds;
+        private final CollectionModel embeddeds;
 
-        public ProfileResource(String firstName, String lastName, Resources embeddeds) {
+        public ProfileResource(String firstName, String lastName, CollectionModel embeddeds) {
             this.firstName = firstName;
             this.lastName = lastName;
             this.embeddeds = embeddeds;
@@ -135,22 +135,22 @@ public String getLastName() {
             return lastName;
         }
 
-        public Resources getEmbeddeds() {
+        public CollectionModel getEmbeddeds() {
             return embeddeds;
         }
     }
 
 //    @Test
 //    public void testEmbeddedResource() {
-//        Resource primary = new Resource(new Email("neo@matrix.net", "primary"));
-//        Resource home = new Resource(new Email("t.anderson@matrix.net", "home"));
+//        EntityModel primary = new EntityModel(new Email("neo@matrix.net", "primary"));
+//        EntityModel home = new EntityModel(new Email("t.anderson@matrix.net", "home"));
 //
 //        EmbeddedWrappers wrappers = new EmbeddedWrappers(true);
 //
 //        List embeddeds = Arrays.asList(wrappers.wrap(primary), wrappers.wrap(home));
 //
-//        Resources embeddedEmails = new Resources(embeddeds, new Link("self"));
-//        // return ResponseEntity.ok(new Resource(new ProfileResource("Thomas", "Anderson", embeddedEmails), linkTo
+//        CollectionModel embeddedEmails = new CollectionModel(embeddeds, new Link("self"));
+//        // return ResponseEntity.ok(new EntityModel(new ProfileResource("Thomas", "Anderson", embeddedEmails), linkTo
 // (ProfileController.class).withSelfRel()));
 //    }
 
@@ -159,13 +159,13 @@ public void testNestedResourceToEmbeddedRepresentation() throws Exception {
         class Customer {
 
             private final String name = "Peter Joseph";
-            private final Resource
 address = new Resource
(new Address());
+            private final EntityModel
 address = new EntityModel
(new Address());
 
             public String getName() {
                 return name;
             }
 
-            public Resource
 getAddress() {
+            public EntityModel
 getAddress() {
                 address.add(new Link("http://example.com/customer/123/address/geolocation", "geolocation"));
                 return address;
             }
@@ -198,7 +198,7 @@ public String getName() {
                 return name;
             }
         }
-        Resource customerResource = new Resource(new Customer());
+        EntityModel customerResource = new EntityModel(new Customer());
         customerResource.add(new Link("http://api.example.com/customers/123/address", "address"));
 
         SirenEntity entity = new SirenEntity();
@@ -214,9 +214,9 @@ public String getName() {
 
     @Test
     public void testListOfResource() {
-        List> addresses = new ArrayList>();
+        List> addresses = new ArrayList>();
         for (int i = 0; i < 4; i++) {
-            addresses.add(new Resource
(new Address()));
+            addresses.add(new EntityModel
(new Address()));
         }
         SirenEntity entity = new SirenEntity();
         sirenUtils.toSirenEntity(entity, addresses);
@@ -235,7 +235,7 @@ public void testResources() {
             addresses.add(new Address());
         }
 
-        Resources
 addressResources = new Resources
(addresses);
+        CollectionModel
 addressResources = new CollectionModel
(addresses);
         addressResources.add(new Link("http://example.com/addresses", "self"));
         SirenEntity entity = new SirenEntity();
         sirenUtils.toSirenEntity(entity, addressResources);
@@ -256,7 +256,7 @@ public void testPagedResources() {
         }
 
 
-        PagedResources
 addressResources = new PagedResources
(addresses,
+        PagedModel
 addressResources = new PagedModel
(addresses,
                 new PageMetadata(2, 0, addresses.size()));
         addressResources.add(new Link("http://example.com/addresses", "self"));
         SirenEntity entity = new SirenEntity();
@@ -422,7 +422,7 @@ public void testListOfBean() {
     public void testMapContainingResource() {
         Map map = new LinkedHashMap();
         map.put("name", "Joe");
-        Resource
 addressResource = new Resource
(new Address());
+        EntityModel
 addressResource = new EntityModel
(new Address());
         addressResource.add(new Link("http://example.com/addresses/1", "self"));
         map.put("address", addressResource);
 
@@ -443,14 +443,14 @@ class Customer {
 
             private final String customerId = "pj123";
             private final String name = "Peter Joseph";
-            private Resources
 addresses;
+            private CollectionModel
 addresses;
 
             Customer() {
                 List
 content = new ArrayList
();
                 for (int i = 0; i < 4; i++) {
                     content.add(new Address());
                 }
-                addresses = new Resources
(content);
+                addresses = new CollectionModel
(content);
             }
 
             public String getCustomerId() {
@@ -461,7 +461,7 @@ public String getName() {
                 return name;
             }
 
-            public Resources
 getAddresses() {
+            public CollectionModel
 getAddresses() {
                 return addresses;
             }
         }
diff --git a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/uber/AbstractUberNodeTest.java b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/uber/AbstractUberNodeTest.java
index a618f622..5c1292e6 100644
--- a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/uber/AbstractUberNodeTest.java
+++ b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/uber/AbstractUberNodeTest.java
@@ -15,7 +15,9 @@
 
 import org.junit.Before;
 import org.junit.Test;
+import org.springframework.hateoas.IanaLinkRelations;
 import org.springframework.hateoas.Link;
+import org.springframework.hateoas.LinkRelation;
 
 import java.util.Arrays;
 
@@ -29,8 +31,8 @@ public class AbstractUberNodeTest {
     private UberNode foo = new UberNode();
     private UberNode bar = new UberNode();
     private UberNode baz = new UberNode();
-    private Link linkPrevious = new Link(URL_PREVIOUS, Link.REL_PREVIOUS);
-    private Link linkNext = new Link(URL_NEXT, Link.REL_NEXT);
+    private Link linkPrevious = new Link(URL_PREVIOUS, IanaLinkRelations.PREVIOUS);
+    private Link linkNext = new Link(URL_NEXT, IanaLinkRelations.NEXT);
 
     class DummyUberNode extends AbstractUberNode {
 
@@ -118,7 +120,7 @@ public void getsFirstNodeByRel() throws Exception {
         dummyUberNode.addData(bar);
         dummyUberNode.addLink(linkPrevious);
 
-        assertNotNull("rel previous not found", dummyUberNode.getFirstByRel(Link.REL_PREVIOUS));
+        assertNotNull("rel previous not found", dummyUberNode.getFirstByRel(IanaLinkRelations.PREVIOUS.value()));
     }
 
     @Test
@@ -135,10 +137,8 @@ public void getsFirstNodeByName() throws Exception {
     @Test
     public void findsAddedLinks() throws Exception {
         dummyUberNode.addLinks(Arrays.asList(linkNext, linkPrevious));
-        assertEquals(URL_NEXT, dummyUberNode.getFirstByRel(Link.REL_NEXT)
-                .getUrl());
-        assertEquals(URL_PREVIOUS, dummyUberNode.getFirstByRel(Link.REL_PREVIOUS)
-                .getUrl());
+        assertEquals(URL_NEXT, dummyUberNode.getFirstByRel(IanaLinkRelations.NEXT.value()).getUrl());
+        assertEquals(URL_PREVIOUS, dummyUberNode.getFirstByRel(IanaLinkRelations.PREVIOUS.value()).getUrl());
         assertNull(dummyUberNode.getFirstByRel("noSuchRel"));
     }
 }
diff --git a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/uber/UberUtilsTest.java b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/uber/UberUtilsTest.java
index 7fa4916d..7f467bb4 100644
--- a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/uber/UberUtilsTest.java
+++ b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/uber/UberUtilsTest.java
@@ -19,10 +19,11 @@
 import org.hamcrest.Matchers;
 import org.junit.Test;
 import org.springframework.core.MethodParameter;
+import org.springframework.hateoas.IanaLinkRelations;
 import org.springframework.hateoas.Link;
-import org.springframework.hateoas.Resource;
-import org.springframework.hateoas.ResourceSupport;
-import org.springframework.hateoas.Resources;
+import org.springframework.hateoas.EntityModel;
+import org.springframework.hateoas.RepresentationModel;
+import org.springframework.hateoas.CollectionModel;
 import org.springframework.web.bind.annotation.RequestMethod;
 
 import java.util.*;
@@ -42,8 +43,8 @@ public class UberUtilsTest {
     @Test
     public void linkGetToUberNode() throws Exception {
         UberNode linkNode = UberUtils.toUberLink("/foo", new SpringActionDescriptor("get", RequestMethod.GET.name()),
-                Link.REL_SELF);
-        assertEquals(Arrays.asList(Link.REL_SELF), linkNode.getRel());
+                IanaLinkRelations.SELF.value());
+        assertEquals(Arrays.asList(IanaLinkRelations.SELF.value()), linkNode.getRel());
         assertEquals("/foo", linkNode.getUrl());
         assertNull(linkNode.getModel());
         assertNull(linkNode.getAction());
@@ -82,8 +83,8 @@ public void linkPostToUberNode() throws Exception {
         actionDescriptor.setRequestBody(
                 new SpringActionInputParameter(new MethodParameter(this.getClass()
                         .getMethod("requestBody", FooRequestBody.class), 0), null));
-        UberNode linkNode = UberUtils.toUberLink("/foo", actionDescriptor, Link.REL_SELF);
-        assertEquals(Arrays.asList(Link.REL_SELF), linkNode.getRel());
+        UberNode linkNode = UberUtils.toUberLink("/foo", actionDescriptor, IanaLinkRelations.SELF.value());
+        assertEquals(Arrays.asList(IanaLinkRelations.SELF.value()), linkNode.getRel());
         assertEquals("/foo", linkNode.getUrl());
         assertThat(linkNode.getModel(),
                 Matchers.containsString("foo={foo}"));
@@ -140,7 +141,7 @@ public String getBar() {
     }
 
 
-    class BeanResource extends ResourceSupport {
+    class BeanResource extends RepresentationModel {
 
 
         public String getFoo() {
@@ -154,7 +155,7 @@ public String getBar() {
 
     @Test
     public void resourceToUberNode() throws Exception {
-        Resource beanResource = new Resource(new Bean());
+        EntityModel beanResource = new EntityModel(new Bean());
         beanResource.add(LINK_HOME);
 
         UberNode node = new UberNode();
@@ -193,7 +194,7 @@ public void beansToUberNode() throws Exception {
     @Test
     public void resourcesToUberNode() throws Exception {
         List beans = Arrays.asList(new Bean(), new Bean("fooValue2", "barValue2"));
-        Resources beanResources = new Resources(beans);
+        CollectionModel beanResources = new CollectionModel(beans);
         beanResources.add(LINK_HOME);
 
         UberNode node = new UberNode();
@@ -222,11 +223,11 @@ public void resourcesToUberNode() throws Exception {
     public void identifiableToUberNode() throws Exception {
         BeanResource bean = new BeanResource();
         String canonicalUrl = "http://www.example.com/bean/1";
-        bean.add(new Link(canonicalUrl, Link.REL_SELF));
+        bean.add(new Link(canonicalUrl, IanaLinkRelations.SELF.value()));
         UberNode node = new UberNode();
         UberUtils.toUberData(node, bean);
         System.out.println(new ObjectMapper().writeValueAsString(node));
-        UberNode selfRel = node.getFirstByRel(Link.REL_SELF);
+        UberNode selfRel = node.getFirstByRel(IanaLinkRelations.SELF.value());
         assertEquals(canonicalUrl, selfRel.getUrl());
     }
 
diff --git a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/xhtml/XhtmlWriterTest.java b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/xhtml/XhtmlWriterTest.java
index e48d8ae2..cf91c059 100644
--- a/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/xhtml/XhtmlWriterTest.java
+++ b/spring-hateoas-ext/src/test/java/de/escalon/hypermedia/spring/xhtml/XhtmlWriterTest.java
@@ -12,6 +12,7 @@
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.hateoas.Link;
+import org.springframework.hateoas.Links;
 import org.springframework.http.ResponseEntity;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
@@ -75,7 +76,7 @@ public ResponseEntity putMultiplePossibleValues(@RequestBody Event event)
                         .EVENT_SCHEDULED)))
                 .withSelfRel();
 
-        xhtml.writeLinks(Arrays.asList(affordance));
+        xhtml.writeLinks(Links.of(affordance));
 
         String xml = writer.toString();
         System.out.println(xml);
@@ -110,7 +111,7 @@ public ResponseEntity postMultiplePossibleValues(@RequestBody Event event)
                         .EVENT_SCHEDULED)))
                 .withSelfRel();
 
-        xhtml.writeLinks(Arrays.asList(affordance));
+        xhtml.writeLinks(Links.of(affordance));
 
         String xml = writer.toString();
         System.out.println(xml);
@@ -147,7 +148,7 @@ public ResponseEntity postEventStatusOnly(
                         .EVENT_SCHEDULED)))
                 .withSelfRel();
 
-        xhtml.writeLinks(Arrays.asList(affordance));
+        xhtml.writeLinks(Links.of(affordance));
 
         String xml = writer.toString();
         System.out.println(xml);
@@ -182,7 +183,7 @@ public ResponseEntity postEventStatusOnly(
                         .EVENT_SCHEDULED)))
                 .withSelfRel();
 
-        xhtml.writeLinks(Arrays.asList(affordance));
+        xhtml.writeLinks(Links.of(affordance));
 
         String xml = writer.toString();
         System.out.println(xml);
@@ -213,7 +214,7 @@ public ResponseEntity postEventStatusOnly(
                         .EVENT_SCHEDULED)))
                 .withSelfRel();
 
-        xhtml.writeLinks(Arrays.asList(affordance));
+        xhtml.writeLinks(Links.of(affordance));
 
         String xml = writer.toString();
         System.out.println(xml);

From e1a2515d510be42f75de652d08aa340918cf5c34 Mon Sep 17 00:00:00 2001
From: "hendra.saputra" 
Date: Wed, 28 Oct 2020 21:52:21 +0000
Subject: [PATCH 2/2] Update example Spring Web MVC project

---
 hydra-sample/service/pom.xml                  |   3 -
 .../de/escalon/hypermedia/sample/Config.java  |  88 +++++++-------
 .../hypermedia/sample/beans/event/Event.java  |  14 +--
 .../hypermedia/sample/beans/store/Offer.java  |   6 +-
 .../hypermedia/sample/beans/store/Order.java  |   8 +-
 .../sample/beans/store/OrderedItem.java       |   4 +-
 .../sample/beans/store/Product.java           |  33 ++++--
 .../hypermedia/sample/beans/store/Store.java  |   4 +-
 .../sample/event/EventController.java         |  20 ++--
 .../sample/event/EventResourceAssembler.java  |   6 +-
 .../sample/event/ReviewController.java        |  12 +-
 .../sample/model/store/OrderStatus.java       |   1 +
 .../sample/model/store/ProductModel.java      |   4 +
 .../sample/store/OrderAssembler.java          |  27 ++---
 .../hypermedia/sample/store/OrderBackend.java |  18 ++-
 .../sample/store/OrderController.java         | 112 +++++++++++-------
 .../sample/store/OrderedItemAssembler.java    |  14 +--
 .../sample/store/OrderedItemController.java   |   2 +-
 .../sample/store/PaymentController.java       |  18 ++-
 .../sample/store/ProductAssembler.java        |  10 +-
 .../sample/store/ProductController.java       |  10 +-
 .../sample/store/StoreController.java         |   8 +-
 22 files changed, 245 insertions(+), 177 deletions(-)

diff --git a/hydra-sample/service/pom.xml b/hydra-sample/service/pom.xml
index aea7980c..6da03981 100644
--- a/hydra-sample/service/pom.xml
+++ b/hydra-sample/service/pom.xml
@@ -25,18 +25,15 @@
         
             junit
             junit
-            4.12
             test
         
         
             org.springframework
             spring-webmvc
-            
         
         
             org.springframework.plugin
             spring-plugin-core
-            
         
         
             javax.servlet
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/Config.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/Config.java
index 19744a13..847c3c73 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/Config.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/Config.java
@@ -1,27 +1,32 @@
 package de.escalon.hypermedia.sample;
 
-import com.fasterxml.jackson.annotation.JsonInclude;
-import com.fasterxml.jackson.databind.ObjectMapper;
 import de.escalon.hypermedia.spring.HypermediaTypes;
 import de.escalon.hypermedia.spring.hydra.HydraMessageConverter;
 import de.escalon.hypermedia.spring.hydra.JsonLdDocumentationProvider;
 import de.escalon.hypermedia.spring.siren.SirenMessageConverter;
 import de.escalon.hypermedia.spring.uber.UberJackson2HttpMessageConverter;
 import de.escalon.hypermedia.spring.xhtml.XhtmlResourceMessageConverter;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.MessageSourceResolvable;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.hateoas.MediaTypes;
-import org.springframework.hateoas.RelProvider;
 import org.springframework.hateoas.UriTemplate;
-import org.springframework.hateoas.core.AnnotationRelProvider;
-import org.springframework.hateoas.core.DefaultRelProvider;
-import org.springframework.hateoas.core.DelegatingRelProvider;
-import org.springframework.hateoas.core.EvoInflectorRelProvider;
-import org.springframework.hateoas.hal.CurieProvider;
-import org.springframework.hateoas.hal.DefaultCurieProvider;
-import org.springframework.hateoas.hal.Jackson2HalModule;
+import org.springframework.hateoas.mediatype.MessageResolver;
+import org.springframework.hateoas.mediatype.hal.CurieProvider;
+import org.springframework.hateoas.mediatype.hal.DefaultCurieProvider;
+import org.springframework.hateoas.mediatype.hal.Jackson2HalModule;
+import org.springframework.hateoas.server.LinkRelationProvider;
+import org.springframework.hateoas.server.core.AnnotationLinkRelationProvider;
+import org.springframework.hateoas.server.core.DefaultLinkRelationProvider;
+import org.springframework.hateoas.server.core.DelegatingLinkRelationProvider;
+import org.springframework.hateoas.server.core.EvoInflectorLinkRelationProvider;
 import org.springframework.http.MediaType;
 import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
@@ -30,33 +35,32 @@
 import org.springframework.util.ClassUtils;
 import org.springframework.web.servlet.HandlerExceptionResolver;
 import org.springframework.web.servlet.config.annotation.EnableWebMvc;
-import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 import org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver;
 
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.List;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.databind.ObjectMapper;
 
 /**
  * Sample configuration. Created by dschulten on 28.12.2014.
  */
 @Configuration
 @EnableWebMvc
-@EnablePluginRegistries(RelProvider.class)
+@EnablePluginRegistries(LinkRelationProvider.class)
 @ComponentScan({"de.escalon.hypermedia.sample.event", "de.escalon.hypermedia.sample.store"})
-public class Config extends WebMvcConfigurerAdapter {
+public class Config implements WebMvcConfigurer {
 
     private static final boolean EVO_PRESENT =
             ClassUtils.isPresent("org.atteo.evo.inflector.English", null);
 
     @Autowired
-    private PluginRegistry> relProviderRegistry;
+    private PluginRegistry relProviderRegistry;
 
     @Override
     public void configureMessageConverters(List> converters) {
         converters.add(hydraMessageConverter());
         converters.add(sirenMessageConverter());
-        converters.add(halConverter());
+//        converters.add(halConverter());
         converters.add(uberConverter());
         converters.add(xhtmlMessageConverter());
         converters.add(jsonConverter());
@@ -73,9 +77,9 @@ public HttpMessageConverter uberConverter() {
     private HttpMessageConverter xhtmlMessageConverter() {
         XhtmlResourceMessageConverter xhtmlResourceMessageConverter = new XhtmlResourceMessageConverter();
         xhtmlResourceMessageConverter.setStylesheets(
-                Arrays.asList(
-                        "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css"
-                ));
+            Collections.singletonList(
+                "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css"
+                                     ));
         xhtmlResourceMessageConverter.setDocumentationProvider(new JsonLdDocumentationProvider());
         return xhtmlResourceMessageConverter;
     }
@@ -96,7 +100,7 @@ public HydraMessageConverter hydraMessageConverter() {
     @Bean
     public SirenMessageConverter sirenMessageConverter() {
         SirenMessageConverter sirenMessageConverter = new SirenMessageConverter();
-        sirenMessageConverter.setRelProvider(new DelegatingRelProvider(relProviderRegistry));
+        sirenMessageConverter.setRelProvider(new DelegatingLinkRelationProvider(relProviderRegistry));
         sirenMessageConverter.setDocumentationProvider(new JsonLdDocumentationProvider());
         sirenMessageConverter.setSupportedMediaTypes(Collections.singletonList(HypermediaTypes.SIREN_JSON));
         return sirenMessageConverter;
@@ -114,43 +118,41 @@ public ObjectMapper jacksonObjectMapper() {
     public MappingJackson2HttpMessageConverter jsonConverter() {
         MappingJackson2HttpMessageConverter jacksonConverter = new
                 MappingJackson2HttpMessageConverter();
-        jacksonConverter.setSupportedMediaTypes(Arrays.asList(MediaType.valueOf("application/json")));
+        jacksonConverter.setSupportedMediaTypes(Collections.singletonList(MediaType.valueOf("application/json")));
         jacksonConverter.setObjectMapper(jacksonObjectMapper());
         return jacksonConverter;
     }
 
     @Bean
     public CurieProvider curieProvider() {
-        return new DefaultCurieProvider("ex", new UriTemplate("http://localhost:8080/webapp/hypermedia-api/rels/{rels}"));
+        return new DefaultCurieProvider("ex", UriTemplate.of("http://localhost:8080/webapp/hypermedia-api/rels/{rels}"));
     }
 
     @Bean
     public MappingJackson2HttpMessageConverter halConverter() {
-        CurieProvider curieProvider = curieProvider();
-
-        RelProvider relProvider = new DelegatingRelProvider(relProviderRegistry);
-        ObjectMapper halObjectMapper = new ObjectMapper();
-
-        halObjectMapper.setSerializationInclusion(JsonInclude.Include.NON_EMPTY);
-
-        halObjectMapper.registerModule(new Jackson2HalModule());
-        halObjectMapper.setHandlerInstantiator(new
-                Jackson2HalModule.HalHandlerInstantiator(relProvider, curieProvider, null));
-
-        MappingJackson2HttpMessageConverter halConverter = new
-                MappingJackson2HttpMessageConverter();
-        halConverter.setSupportedMediaTypes(Arrays.asList(MediaTypes.HAL_JSON));
-        halConverter.setObjectMapper(halObjectMapper);
+//        CurieProvider curieProvider = curieProvider();
+//
+//        LinkRelationProvider relProvider = new DelegatingLinkRelationProvider(relProviderRegistry);
+//        ObjectMapper halObjectMapper = new ObjectMapper();
+//
+//        halObjectMapper.setSerializationInclusion(JsonInclude.Include.NON_EMPTY);
+//
+//        halObjectMapper.registerModule(new Jackson2HalModule());
+//        halObjectMapper.setHandlerInstantiator(new Jackson2HalModule.HalHandlerInstantiator(relProvider, curieProvider, null));
+
+        MappingJackson2HttpMessageConverter halConverter = new MappingJackson2HttpMessageConverter();
+        halConverter.setSupportedMediaTypes(Collections.singletonList(MediaTypes.HAL_JSON));
+//        halConverter.setObjectMapper(halObjectMapper);
         return halConverter;
     }
 
     @Bean
-    RelProvider defaultRelProvider() {
-        return EVO_PRESENT ? new EvoInflectorRelProvider() : new DefaultRelProvider();
+    LinkRelationProvider defaultRelProvider() {
+        return EVO_PRESENT ? new EvoInflectorLinkRelationProvider() : new DefaultLinkRelationProvider();
     }
 
     @Bean
-    RelProvider annotationRelProvider() {
-        return new AnnotationRelProvider();
+    LinkRelationProvider annotationRelProvider() {
+        return new AnnotationLinkRelationProvider();
     }
 }
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/event/Event.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/event/Event.java
index ebac3fd3..7c55a93c 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/event/Event.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/event/Event.java
@@ -5,18 +5,18 @@
 import de.escalon.hypermedia.action.Select;
 import de.escalon.hypermedia.sample.model.event.CreativeWork;
 import de.escalon.hypermedia.sample.model.event.EventStatusType;
-import org.springframework.hateoas.Resource;
-import org.springframework.hateoas.ResourceSupport;
+import org.springframework.hateoas.EntityModel;
+import org.springframework.hateoas.RepresentationModel;
 
 /**
- * Sample Event Resource, represents an Event with links. Created by dschulten on 11.09.2014.
+ * Sample Event EntityModel, represents an Event with links. Created by dschulten on 11.09.2014.
  */
-public class Event extends ResourceSupport {
+public class Event extends RepresentationModel {
     public final int id;
     public final String performer;
     public final String location;
     private EventStatusType eventStatus;
-    public final Resource workPerformed;
+    public final EntityModel workPerformed;
 
     @JsonCreator
     public Event(@JsonProperty("performer") String performer,
@@ -26,14 +26,14 @@ public Event(@JsonProperty("performer") String performer,
         this.id = 0;
         this.performer = performer;
         this.location = location;
-        this.workPerformed = new Resource(workPerformed);
+        this.workPerformed = new EntityModel(workPerformed);
         this.eventStatus = eventStatus;
     }
 
     public Event(int id, String performer, CreativeWork workPerformed, String location, EventStatusType eventStatus) {
         this.id = id;
         this.performer = performer;
-        this.workPerformed = new Resource(workPerformed);
+        this.workPerformed = new EntityModel(workPerformed);
         this.location = location;
         this.eventStatus = eventStatus;
     }
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/Offer.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/Offer.java
index 9b5b6a35..be8d9492 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/Offer.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/Offer.java
@@ -2,8 +2,8 @@
 
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
-import org.springframework.hateoas.ResourceSupport;
-import org.springframework.hateoas.core.Relation;
+import org.springframework.hateoas.RepresentationModel;
+import org.springframework.hateoas.server.core.Relation;
 
 import java.math.BigDecimal;
 import java.util.ArrayList;
@@ -15,7 +15,7 @@
  */
 @JsonPropertyOrder({"itemOffered", "price", "priceCurrency", "addOns"})
 @Relation("offer")
-public class Offer extends ResourceSupport {
+public class Offer extends RepresentationModel {
     private Product itemOffered;
     private BigDecimal price;
     private List addOns = new ArrayList();
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/Order.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/Order.java
index 1b69a1a4..b92d3e66 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/Order.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/Order.java
@@ -2,7 +2,7 @@
 
 import de.escalon.hypermedia.hydra.mapping.Expose;
 import de.escalon.hypermedia.sample.model.store.OrderStatus;
-import org.springframework.hateoas.ResourceSupport;
+import org.springframework.hateoas.RepresentationModel;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -10,8 +10,8 @@
 /**
  * Created by Dietrich on 17.02.2015.
  */
-public class Order extends ResourceSupport {
-    private List items = new ArrayList();
+public class Order extends RepresentationModel {
+    private List items = new ArrayList<>();
     private Offer acceptedOffer;
     private Store seller;
     private OrderStatus orderStatus;
@@ -24,7 +24,6 @@ public Store getSeller() {
         return seller;
     }
 
-
     public void addItem(Product orderedItem) {
         this.items.add(orderedItem);
     }
@@ -34,7 +33,6 @@ public List getItems() {
         return items;
     }
 
-
     public void setOrderStatus(OrderStatus orderStatus) {
         this.orderStatus = orderStatus;
     }
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/OrderedItem.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/OrderedItem.java
index 4c4bf7ac..12f44a68 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/OrderedItem.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/OrderedItem.java
@@ -1,11 +1,11 @@
 package de.escalon.hypermedia.sample.beans.store;
 
-import org.springframework.hateoas.ResourceSupport;
+import org.springframework.hateoas.RepresentationModel;
 
 /**
  * Created by Dietrich on 02.11.2015.
  */
-public class OrderedItem extends ResourceSupport {
+public class OrderedItem extends RepresentationModel {
     private String orderItemNumber;
     private Product orderedItem;
 
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/Product.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/Product.java
index ec66abde..d1ee8e90 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/Product.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/Product.java
@@ -3,8 +3,8 @@
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import de.escalon.hypermedia.hydra.mapping.Term;
-import org.springframework.hateoas.ResourceSupport;
-import org.springframework.hateoas.core.Relation;
+import org.springframework.hateoas.RepresentationModel;
+import org.springframework.hateoas.server.core.Relation;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -14,11 +14,11 @@
  */
 @Term(define = "accessories", as = "isAccessoryOrSparePartFor", reverse = true)
 @Relation("product")
-public class Product extends ResourceSupport {
+public class Product extends RepresentationModel {
     public final String name;
     public final String productID;
     private Offer offer;
-    public List accessories = new ArrayList();
+    public List accessories = new ArrayList<>();
 
     public Offer getOffers() {
         return offer;
@@ -35,14 +35,31 @@ public void addOffer(Offer offer) {
     }
 
     public boolean hasExtra(String accessoryId) {
-        boolean ret = false;
         for (Product accessory : accessories) {
             if (accessory.productID.equals(accessoryId)) {
-                ret = true;
-                break;
+                return true;
             }
         }
-        return ret;
+        return false;
+    }
+
+    public Product getExtra(String accessoryId) {
+        for (Product accessory : accessories) {
+            if (accessory.productID.equals(accessoryId)) {
+                return accessory;
+            }
+        }
+        return null;
+    }
+
+    public int getExtraId(String accessoryId) {
+        int index = 0;
+        for (Product accessory : accessories) {
+            if (accessory.productID.equals(accessoryId)) {
+                return index;
+            }
+        }
+        return -1;
     }
 
     public void addAccessory(Product product) {
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/Store.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/Store.java
index c78654a1..154748a2 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/Store.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/beans/store/Store.java
@@ -1,7 +1,7 @@
 package de.escalon.hypermedia.sample.beans.store;
 
 import de.escalon.hypermedia.hydra.mapping.Expose;
-import org.springframework.hateoas.ResourceSupport;
+import org.springframework.hateoas.RepresentationModel;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -10,7 +10,7 @@
  * Created by Dietrich on 17.02.2015.
  */
 @Expose("CafeOrCoffeeShop")
-public class Store extends ResourceSupport {
+public class Store extends RepresentationModel {
 
     public String name = "Kaffeehaus Hagen";
 
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/event/EventController.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/event/EventController.java
index f827c2fc..f30c0831 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/event/EventController.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/event/EventController.java
@@ -8,7 +8,7 @@
 import de.escalon.hypermedia.sample.model.event.EventStatusType;
 import de.escalon.hypermedia.spring.AffordanceBuilder;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.hateoas.Resources;
+import org.springframework.hateoas.CollectionModel;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
@@ -33,31 +33,31 @@ public class EventController {
 
 //    @RequestMapping(method = RequestMethod.GET)
 //    @ResponseBody
-//    public ResponseEntity> getEvents() {
+//    public ResponseEntity> getEvents() {
 //        List events = assembler.toResources(eventBackend.getEvents());
 //        for (Event event : events) {
 //            addAffordances(event);
 //        }
-//        Resources eventResources = new Resources(events);
+//        CollectionModel eventResources = new CollectionModel(events);
 //
 //        eventResources.add(AffordanceBuilder.linkTo(AffordanceBuilder.methodOn(EventController.class).addEvent(null))
 //                .withSelfRel());
 //
-//        return new ResponseEntity>(eventResources, HttpStatus.OK);
+//        return new ResponseEntity>(eventResources, HttpStatus.OK);
 //    }
 
     @RequestMapping(method = RequestMethod.GET)
     @ResponseBody
-    public ResponseEntity> findEvents(@RequestParam(required = false) String name) {
-        List events = assembler.toResources(eventBackend.getEvents());
-        List matches = new ArrayList();
+    public ResponseEntity> findEvents(@RequestParam(required = false) String name) {
+        CollectionModel events = assembler.toCollectionModel(eventBackend.getEvents());
+        List matches = new ArrayList<>();
         for (Event event : events) {
             if (name == null || event.workPerformed.getContent().name.equals(name)) {
                 addAffordances(event);
                 matches.add(event);
             }
         }
-        Resources eventResources = new Resources(matches);
+        CollectionModel eventResources = CollectionModel.of(matches);
 
         eventResources.add(AffordanceBuilder.linkTo(AffordanceBuilder.methodOn(EventController.class)
                 .addEvent(new Event(null, new CreativeWork(null), null, EventStatusType.EVENT_SCHEDULED)))
@@ -67,13 +67,13 @@ public ResponseEntity> findEvents(@RequestParam(required = fals
                 .findEvents(null))
                 .withRel("hydra:search"));
 
-        return new ResponseEntity>(eventResources, HttpStatus.OK);
+        return new ResponseEntity>(eventResources, HttpStatus.OK);
     }
 
 
     @RequestMapping(value = "/{eventId}", method = RequestMethod.GET)
     public ResponseEntity getEvent(@PathVariable Integer eventId) {
-        Event event = assembler.toResource(eventBackend.getEvent(eventId));
+        Event event = assembler.toModel(eventBackend.getEvent(eventId));
 
         addAffordances(event);
 
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/event/EventResourceAssembler.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/event/EventResourceAssembler.java
index bf039cdd..ea9f41f9 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/event/EventResourceAssembler.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/event/EventResourceAssembler.java
@@ -2,21 +2,21 @@
 
 import de.escalon.hypermedia.sample.beans.event.Event;
 import de.escalon.hypermedia.sample.model.event.EventModel;
-import org.springframework.hateoas.mvc.ResourceAssemblerSupport;
+import org.springframework.hateoas.server.mvc.RepresentationModelAssemblerSupport;
 import org.springframework.stereotype.Component;
 
 /**
  * Created by dschulten on 28.12.2014.
  */
 @Component
-public class EventResourceAssembler extends ResourceAssemblerSupport {
+public class EventResourceAssembler extends RepresentationModelAssemblerSupport {
 
     public EventResourceAssembler() {
         super(EventController.class, Event.class);
     }
 
     @Override
-    public Event toResource(EventModel eventModel) {
+    public Event toModel(EventModel eventModel) {
         return new Event(eventModel.id, eventModel.performer, eventModel.workPerformed, eventModel.location,
                 eventModel.eventStatus);
     }
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/event/ReviewController.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/event/ReviewController.java
index d7fa4a11..ca52545b 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/event/ReviewController.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/event/ReviewController.java
@@ -17,7 +17,7 @@
 import de.escalon.hypermedia.sample.beans.event.Review;
 import de.escalon.hypermedia.spring.AffordanceBuilder;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.hateoas.Resources;
+import org.springframework.hateoas.CollectionModel;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
@@ -40,13 +40,13 @@ public class ReviewController {
 
     @RequestMapping(value = "/events/{eventId}", method = RequestMethod.GET)
     @ResponseBody
-    public ResponseEntity> getReviews(@PathVariable int eventId) {
+    public ResponseEntity> getReviews(@PathVariable int eventId) {
         List reviews = eventBackend.getReviews()
                 .get(eventId);
 
-        ResponseEntity> ret;
+        ResponseEntity> ret;
         if (reviews != null) {
-            final Resources reviewResources = new Resources(reviews);
+            final CollectionModel reviewResources = new CollectionModel(reviews);
 
             reviewResources.add(AffordanceBuilder.linkTo(AffordanceBuilder.methodOn(EventController.class)
                     .getEvent(eventId)) // passing null requires that method takes Integer, not int
@@ -55,9 +55,9 @@ public ResponseEntity> getReviews(@PathVariable int eventId) {
                     .addReview
                             (eventId, null))
                     .withSelfRel());
-            ret = new ResponseEntity>(reviewResources, HttpStatus.OK);
+            ret = new ResponseEntity>(reviewResources, HttpStatus.OK);
         } else {
-            ret = new ResponseEntity>(HttpStatus.NOT_FOUND);
+            ret = new ResponseEntity>(HttpStatus.NOT_FOUND);
         }
         return ret;
     }
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/model/store/OrderStatus.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/model/store/OrderStatus.java
index e7a086a9..2faa2c4f 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/model/store/OrderStatus.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/model/store/OrderStatus.java
@@ -6,6 +6,7 @@
 public enum OrderStatus {
     ORDER_CANCELLED,
     ORDER_PROCESSING,
+    ORDER_PAID,
     ORDER_DELIVERED,
     ORDER_PAYMENT_DUE,
     ORDER_PICKUP_AVAILABLE,
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/model/store/ProductModel.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/model/store/ProductModel.java
index 215be7f6..ebbacbbd 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/model/store/ProductModel.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/model/store/ProductModel.java
@@ -19,4 +19,8 @@ public ProductModel(String name, String productId) {
     public void addAccessory(ProductModel accessory) {
         accessories.add(accessory);
     }
+
+    public void removeAccessory(final int accessoryId) {
+        accessories.remove(accessoryId);
+    }
 }
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderAssembler.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderAssembler.java
index d2896905..c2578790 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderAssembler.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderAssembler.java
@@ -1,23 +1,23 @@
 package de.escalon.hypermedia.sample.store;
 
-
 import de.escalon.hypermedia.sample.beans.store.Order;
 import de.escalon.hypermedia.sample.beans.store.Product;
 import de.escalon.hypermedia.sample.model.store.OrderModel;
 import de.escalon.hypermedia.sample.model.store.OrderedItemModel;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.hateoas.mvc.ResourceAssemblerSupport;
-import org.springframework.stereotype.Component;
+import static org.springframework.hateoas.server.mvc.WebMvcLinkBuilder.linkTo;
 
 import java.util.List;
 
-import static org.springframework.hateoas.mvc.ControllerLinkBuilder.linkTo;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.hateoas.Link;
+import org.springframework.hateoas.server.mvc.RepresentationModelAssemblerSupport;
+import org.springframework.stereotype.Component;
 
 /**
  * Created by Dietrich on 17.02.2015.
  */
 @Component
-public class OrderAssembler extends ResourceAssemblerSupport {
+public class OrderAssembler extends RepresentationModelAssemblerSupport {
 
     @Autowired
     private ProductAssembler itemAssembler;
@@ -27,21 +27,20 @@ public OrderAssembler() {
     }
 
     @Override
-    public Order toResource(OrderModel entity) {
-        return createResourceWithId(entity.getId(), entity);
+    public Order toModel(OrderModel entity) {
+        return createModelWithId(entity.getId(), entity);
     }
 
     @Override
-    protected Order instantiateResource(OrderModel entity) {
-        Order order = super.instantiateResource(entity);
+    protected Order instantiateModel(OrderModel entity) {
+        Order order = super.instantiateModel(entity);
         order.setOrderStatus(entity.getOrderStatus());
         List orderedItems = entity.getOrderedItems();
         for (OrderedItemModel orderedItemModel : orderedItems) {
-            Product product = itemAssembler.instantiateResource(orderedItemModel.orderedItem);
-            Object parameters;
+            Product product = itemAssembler.instantiateModel(orderedItemModel.orderedItem);
             product.add(linkTo(OrderedItemController.class, entity.getId())
-                    .slash(orderedItemModel.orderedItemId)
-                    .withSelfRel());
+                .slash(orderedItemModel.orderedItemId)
+                .withSelfRel());
             order.addItem(product);
         }
         return order;
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderBackend.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderBackend.java
index 17276cbf..2038d820 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderBackend.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderBackend.java
@@ -16,7 +16,7 @@
 public class OrderBackend {
     public static int orderCounter;
     public static int orderedItemCounter;
-    public List orderModels = new ArrayList();
+    public List orderModels = new ArrayList<>();
 
     public OrderModel createOrder() {
         OrderModel orderModel = new OrderModel();
@@ -60,7 +60,19 @@ public List getOrdersByStatus(OrderStatus orderStatus) {
 
     public void deleteOrderedItem(int orderId, int orderedItemId) {
         OrderModel order = getOrder(orderId);
-        order.getOrderedItems()
-                .remove(orderedItemId);
+        order.getOrderedItems().remove(orderedItemId);
+    }
+
+    public void payOrder(int orderId) {
+        OrderModel order = getOrder(orderId);
+        order.setOrderStatus(OrderStatus.ORDER_PAID);
+    }
+
+    public OrderModel removeAccessoryForOrderedItem(final int orderId, final int orderedItemId, final int accessoryId) {
+        OrderModel orderModel = orderModels.get(orderId);
+        List products = orderModel.getOrderedItems();
+        OrderedItemModel orderedItem = products.get(orderedItemId);
+        orderedItem.orderedItem.removeAccessory(accessoryId);
+        return orderModel;
     }
 }
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderController.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderController.java
index b32b6955..f2a5e428 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderController.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderController.java
@@ -12,23 +12,28 @@
 import de.escalon.hypermedia.sample.model.store.OrderStatus;
 import de.escalon.hypermedia.sample.model.store.ProductModel;
 import de.escalon.hypermedia.spring.AffordanceBuilder;
+import sun.reflect.generics.reflectiveObjects.NotImplementedException;
+import static de.escalon.hypermedia.spring.AffordanceBuilder.linkTo;
+import static de.escalon.hypermedia.spring.AffordanceBuilder.methodOn;
+
+import java.math.BigDecimal;
+import java.util.Currency;
+import java.util.List;
+
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.hateoas.ExposesResourceFor;
-import org.springframework.hateoas.Link;
-import org.springframework.hateoas.Resources;
+import org.springframework.hateoas.CollectionModel;
+import org.springframework.hateoas.IanaLinkRelations;
+import org.springframework.hateoas.server.ExposesResourceFor;
 import org.springframework.http.HttpEntity;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Controller;
-import org.springframework.web.bind.annotation.*;
-
-import java.math.BigDecimal;
-import java.util.Currency;
-import java.util.List;
-
-import static de.escalon.hypermedia.spring.AffordanceBuilder.linkTo;
-import static de.escalon.hypermedia.spring.AffordanceBuilder.methodOn;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
 
 /**
  * Created by Dietrich on 17.02.2015.
@@ -54,37 +59,45 @@ public class OrderController {
     @ResourceHandler(Cardinality.COLLECTION)
     @RequestMapping(method = RequestMethod.POST)
     public ResponseEntity makeOrder(@Input(readOnly = {"productID"}) @RequestBody Product product) {
-
         OrderModel orderModel = orderBackend.createOrder();
         Product resolvedProduct = productController.getProduct(product.productID);
         orderModel = orderBackend.addOrderedItem(orderModel.getId(),
                 new ProductModel(resolvedProduct.name, resolvedProduct.productID));
         return redirectToUpdatedOrder(orderModel.getId());
-
     }
 
     @RequestMapping("/{orderId}")
     public ResponseEntity getOrder(@PathVariable int orderId) {
         OrderModel orderModel = orderBackend.getOrder(orderId);
-        Order order = orderAssembler.toResource(orderModel);
+        Order order = orderAssembler.toModel(orderModel);
         //TODO need to add additional action for delete to self rel
 
         // offer extras for each product
         List items = order.getItems();
-        for (int i = 0; i < items.size(); i++) {
-            Product product = items.get(i);
+        for (int orderItemId = 0; orderItemId < items.size(); orderItemId++) {
+            Product product = items.get(orderItemId);
             Offer offer = new Offer();
-            if (!product
-                    .hasExtra("9052006")) {
-                Offer shot = createAddOnOffer(product, "9052006", 0.2, orderId, i);
+
+            if (!product.hasExtra("9052006")) {
+                Offer shot = createAddOnOffer(product, "9052006", 0.2, orderId, orderItemId);
                 offer.addOn(shot);
             }
+            else {
+                final String productId = "9052006";
+                deleteOrderAccessory(orderId, orderItemId, product, productId);
+            }
+
             if (!product.hasExtra("9052007")) {
-                Offer briocheCrema = createAddOnOffer(product, "9052007", 0.8, orderId, i);
+                Offer briocheCrema = createAddOnOffer(product, "9052007", 0.8, orderId, orderItemId);
                 offer.addOn(briocheCrema);
             }
-            if (!offer.getAddOns()
-                    .isEmpty()) {
+            else {
+                final String productId = "9052007";
+                deleteOrderAccessory(orderId, orderItemId, product, productId);
+            }
+
+            if (!offer.getAddOns().isEmpty()) {
+                offer.add(linkTo(methodOn(this.getClass()).deleteOrderedItem(orderId, orderItemId)).withRel("removeOffer"));
                 product.addOffer(offer);
             }
         }
@@ -94,7 +107,17 @@ public ResponseEntity getOrder(@PathVariable int orderId) {
         order.setSeller(store);
 
         order.add(linkTo(methodOn(PaymentController.class).makePayment(orderId)).withRel("paymentUrl"));
-        return new ResponseEntity(order, HttpStatus.OK);
+        return new ResponseEntity<>(order, HttpStatus.OK);
+    }
+
+    private void deleteOrderAccessory(final int orderId, final int orderItemId, final Product product, final String productId) {
+        Product accessory = productController.getProduct(productId);
+        String accessorySelfRel = accessory.getLink(IanaLinkRelations.SELF).get().getHref();
+        final int extraId = product.getExtraId(productId);
+        product.getExtra(productId).add(linkTo(methodOn(OrderController.class).removeAccessory(orderId, orderItemId,
+            extraId))
+            .reverseRel("isAccessoryOrSparePartFor", "extras", new TypedResource("Product", accessorySelfRel))
+            .build());
     }
 
     @RequestMapping(value = "/{orderId}/items/{orderedItemId}/accessories", method = RequestMethod.POST)
@@ -102,8 +125,14 @@ public ResponseEntity orderAccessory(@PathVariable int orderId, @PathVaria
                                                @RequestBody @Input(readOnly = "productID") Product product) {
         // TODO should write a productBackend to avoid this resolution nonsense:
         Product resolvedProduct = productController.getProduct(product.productID);
-        orderBackend.orderAccessoryForOrderedItem(orderId, orderedItemId, new ProductModel(resolvedProduct.name,
-                resolvedProduct.productID));
+        orderBackend.orderAccessoryForOrderedItem(orderId, orderedItemId,
+            new ProductModel(resolvedProduct.name, resolvedProduct.productID));
+        return redirectToUpdatedOrder(orderId);
+    }
+
+    @RequestMapping(value = "/{orderId}/items/{orderedItemId}/accessories/{accessoryId}", method = RequestMethod.DELETE)
+    public ResponseEntity removeAccessory(@PathVariable int orderId, @PathVariable int orderedItemId, @PathVariable int accessoryId) {
+        orderBackend.removeAccessoryForOrderedItem(orderId, orderedItemId, accessoryId);
         return redirectToUpdatedOrder(orderId);
     }
 
@@ -111,15 +140,14 @@ private ResponseEntity redirectToUpdatedOrder(int orderId) {
         AffordanceBuilder location = linkTo(methodOn(this.getClass()).getOrder(orderId));
         HttpHeaders headers = new HttpHeaders();
         headers.setLocation(location.toUri());
-        return new ResponseEntity(headers, HttpStatus.SEE_OTHER);
+        return new ResponseEntity<>(headers, HttpStatus.SEE_OTHER);
     }
 
     @RequestMapping(value = "/{orderId}/items", method = RequestMethod.POST)
     public ResponseEntity orderAdditionalItem(
             @PathVariable int orderId, @RequestBody @Input(readOnly = "productID") Product product) {
-
         Product resolvedProduct = productController.getProduct(product.productID);
-        OrderModel orderModel = orderBackend.addOrderedItem(orderId,
+        orderBackend.addOrderedItem(orderId,
                 new ProductModel(resolvedProduct.name, resolvedProduct.productID));
         return redirectToUpdatedOrder(orderId);
     }
@@ -130,17 +158,20 @@ public ResponseEntity deleteOrderedItem(@PathVariable int orderId, @PathVa
         return redirectToUpdatedOrder(orderId);
     }
 
-    private Offer createAddOnOffer(Product product, String addOnProductID, double price, int orderId, int
-            orderedItemId) {
+    private Offer createOffer(final double price) {
         Offer addOnOffer = new Offer();
         addOnOffer.setPriceCurrency(Currency.getInstance("EUR"));
         addOnOffer.setPrice(BigDecimal.valueOf(price));
+        return addOnOffer;
+    }
+
+    private Offer createAddOnOffer(Product product, String addOnProductID, double price, int orderId, int orderedItemId) {
+        Offer addOnOffer = createOffer(price);
 
         Product addOnProduct = productController.getProduct(addOnProductID);
         addOnOffer.setItemOffered(addOnProduct);
 
-        String productSelfRel = product.getLink(Link.REL_SELF)
-                .getHref();
+        String productSelfRel = product.getLink(IanaLinkRelations.SELF).get().getHref();
         addOnProduct.add(linkTo(methodOn(OrderController.class).orderAccessory(orderId, orderedItemId, addOnProduct))
                 .reverseRel("isAccessoryOrSparePartFor", "extras", new TypedResource("Product", productSelfRel))
                 .build());
@@ -149,25 +180,22 @@ private Offer createAddOnOffer(Product product, String addOnProductID, double pr
     }
 
     @RequestMapping(method = RequestMethod.GET)
-    public ResponseEntity> getOrders(@RequestParam(required = false) OrderStatus orderStatus) {
+    public ResponseEntity> getOrders(@RequestParam(required = false) OrderStatus orderStatus) {
         List orders;
         if (orderStatus == null) {
             orders = orderBackend.getOrders();
         } else {
-            orders = orderBackend
-                    .getOrdersByStatus(orderStatus);
+            orders = orderBackend.getOrdersByStatus(orderStatus);
         }
-        Resources orderResources = new Resources(
-                orderAssembler.toResources(orders));
-        return new ResponseEntity>(orderResources, HttpStatus.OK);
+        CollectionModel orderResources = orderAssembler.toCollectionModel(orders);
+        return new ResponseEntity<>(orderResources, HttpStatus.OK);
     }
 
 
     @RequestMapping("/{orderId}/offers")
-    public HttpEntity> getOffersForOrder(@PathVariable int orderId) {
-        HttpEntity> offers = storeController.getOffers();
-        for (Offer offer : offers.getBody()
-                .getContent()) {
+    public HttpEntity> getOffersForOrder(@PathVariable int orderId) {
+        HttpEntity> offers = storeController.getOffers();
+        for (Offer offer : offers.getBody().getContent()) {
             Product itemOffered = offer.getItemOffered();
 
             // we can determine the subject URI of the order
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderedItemAssembler.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderedItemAssembler.java
index e54b1c30..39b7cda5 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderedItemAssembler.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderedItemAssembler.java
@@ -3,7 +3,7 @@
 import de.escalon.hypermedia.sample.beans.store.OrderedItem;
 import de.escalon.hypermedia.sample.model.store.OrderedItemModel;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.hateoas.mvc.ResourceAssemblerSupport;
+import org.springframework.hateoas.server.mvc.RepresentationModelAssemblerSupport;
 import org.springframework.stereotype.Component;
 
 /**
@@ -12,7 +12,7 @@
  * Created by Dietrich on 02.11.2015.
  */
 @Component
-public class OrderedItemAssembler extends ResourceAssemblerSupport {
+public class OrderedItemAssembler extends RepresentationModelAssemblerSupport {
 
 
     @Autowired
@@ -23,14 +23,14 @@ public OrderedItemAssembler() {
     }
 
     @Override
-    public OrderedItem toResource(OrderedItemModel entity) {
-        return createResourceWithId(entity.orderedItemId, entity);
+    public OrderedItem toModel(OrderedItemModel entity) {
+        return createModelWithId(entity.orderedItemId, entity);
     }
 
     @Override
-    protected OrderedItem instantiateResource(OrderedItemModel entity) {
-        OrderedItem orderedItem = super.instantiateResource(entity);
-        orderedItem.setOrderedItem(productAssembler.toResource(entity.orderedItem));
+    protected OrderedItem instantiateModel(OrderedItemModel entity) {
+        OrderedItem orderedItem = super.instantiateModel(entity);
+        orderedItem.setOrderedItem(productAssembler.toModel(entity.orderedItem));
         orderedItem.setOrderItemNumber(Integer.toString(entity.orderedItemId));
         return orderedItem;
     }
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderedItemController.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderedItemController.java
index 519f18c6..04b0fc53 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderedItemController.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/OrderedItemController.java
@@ -41,7 +41,7 @@ public ResponseEntity getOrderedItem(@PathVariable int orderId, @PathVa
         }
         Product product = null;
         if (found != null) {
-            product = productAssembler.instantiateResource(found.orderedItem);
+            product = productAssembler.instantiateModel(found.orderedItem);
             product.add(linkTo(methodOn(this.getClass())
                     .getOrderedItem(orderId, orderedItemId))
                     .withSelfRel());
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/PaymentController.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/PaymentController.java
index 577e6426..cb48cfee 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/PaymentController.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/PaymentController.java
@@ -1,7 +1,12 @@
 package de.escalon.hypermedia.sample.store;
 
+import de.escalon.hypermedia.sample.beans.store.Order;
 import de.escalon.hypermedia.sample.beans.store.Payment;
+import de.escalon.hypermedia.sample.model.store.OrderModel;
+import de.escalon.hypermedia.sample.model.store.OrderStatus;
 import de.escalon.hypermedia.spring.AffordanceBuilder;
+
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
@@ -17,11 +22,17 @@
 @Controller
 public class PaymentController {
 
+    @Autowired
+    private OrderBackend orderBackend;
+
+    @Autowired
+    private OrderAssembler orderAssembler;
+
     @RequestMapping("/{id}/payment")
-    public ResponseEntity makePayment(@PathVariable int id) {
+    public ResponseEntity makePayment(@PathVariable int orderId) {
+        orderBackend.payOrder(orderId);
         HttpHeaders httpHeaders = new HttpHeaders();
-        httpHeaders.setLocation(linkTo(AffordanceBuilder.methodOn(this.getClass())
-                .getPayment()).toUri());
+        httpHeaders.setLocation(linkTo(AffordanceBuilder.methodOn(this.getClass()).getPayment()).toUri());
         return new ResponseEntity(httpHeaders, HttpStatus.CREATED);
     }
 
@@ -29,5 +40,4 @@ public Payment getPayment() {
         return null;
     }
 
-
 }
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/ProductAssembler.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/ProductAssembler.java
index 97d83eaa..94a1a53d 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/ProductAssembler.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/ProductAssembler.java
@@ -2,26 +2,26 @@
 
 import de.escalon.hypermedia.sample.beans.store.Product;
 import de.escalon.hypermedia.sample.model.store.ProductModel;
-import org.springframework.hateoas.mvc.ResourceAssemblerSupport;
+import org.springframework.hateoas.server.mvc.RepresentationModelAssemblerSupport;
 import org.springframework.stereotype.Component;
 
 /**
  * Created by Dietrich on 17.02.2015.
  */
 @Component
-public class ProductAssembler extends ResourceAssemblerSupport {
+public class ProductAssembler extends RepresentationModelAssemblerSupport {
 
     public ProductAssembler() {
         super(ProductController.class, Product.class);
     }
 
     @Override
-    public Product toResource(ProductModel entity) {
-        return createResourceWithId(entity.productId, entity);
+    public Product toModel(ProductModel entity) {
+        return createModelWithId(entity.productId, entity);
     }
 
     @Override
-    protected Product instantiateResource(ProductModel entity) {
+    protected Product instantiateModel(ProductModel entity) {
         Product product = new Product(entity.name, entity.productId);
         for (ProductModel accessory : entity.accessories) {
             product.addAccessory(new Product(accessory.name, accessory.productId));
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/ProductController.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/ProductController.java
index 3672b686..71eb5a81 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/ProductController.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/ProductController.java
@@ -2,7 +2,7 @@
 
 import de.escalon.hypermedia.sample.beans.store.Product;
 import de.escalon.hypermedia.sample.model.store.ProductModel;
-import org.springframework.hateoas.Resources;
+import org.springframework.hateoas.CollectionModel;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -35,13 +35,13 @@ public class ProductController {
     @RequestMapping
     public
     @ResponseBody
-    Resources getProducts() {
+    CollectionModel getProducts() {
         List resources = new ArrayList();
         for (ProductModel productModel : productModels) {
-            Product product = assembler.toResource(productModel);
+            Product product = assembler.toModel(productModel);
             resources.add(product);
         }
-        return new Resources(resources);
+        return new CollectionModel(resources);
     }
 
 
@@ -51,7 +51,7 @@ Resources getProducts() {
     Product getProduct(@PathVariable String productID) {
         for (ProductModel productModel : productModels) {
             if (productID.equals(productModel.productId)) {
-                return assembler.toResource(productModel);
+                return assembler.toModel(productModel);
             }
         }
         return null;
diff --git a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/StoreController.java b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/StoreController.java
index b2d27b08..01fe60a2 100644
--- a/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/StoreController.java
+++ b/hydra-sample/service/src/main/java/de/escalon/hypermedia/sample/store/StoreController.java
@@ -6,7 +6,7 @@
 import de.escalon.hypermedia.sample.beans.store.Store;
 import de.escalon.hypermedia.spring.AffordanceBuilder;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.hateoas.Resources;
+import org.springframework.hateoas.CollectionModel;
 import org.springframework.http.HttpEntity;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -49,10 +49,10 @@ Store getStoreWithOffers() {
         return store;
     }
 
-    public HttpEntity> getOffers() {
-        Resources offers = new Resources(
+    public HttpEntity> getOffers() {
+        CollectionModel offers = new CollectionModel(
                 mockOffers());
-        return new HttpEntity>(offers);
+        return new HttpEntity>(offers);
     }
 
     private List mockOffers() {