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...traints/constraint-api/src/main/java/io/toolisticon/aptk/constraints/StringMustMatch.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,20 @@ | ||
| package io.toolisticon.aptk.constraints; | ||
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| import java.lang.annotation.Documented; | ||
| import java.lang.annotation.ElementType; | ||
| import java.lang.annotation.Retention; | ||
| import java.lang.annotation.RetentionPolicy; | ||
| import java.lang.annotation.Target; | ||
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| @Documented | ||
| @Constraint | ||
| @Target(ElementType.METHOD) | ||
| @Retention(RetentionPolicy.RUNTIME) | ||
| @On(On.Location.ANNOTATION_ATTRIBUTE) | ||
| @OnAnnotationAttributeOfType({OnAnnotationAttributeOfType.AttributeType.STRING, OnAnnotationAttributeOfType.AttributeType.STRING_ARRAY}) | ||
| public @interface StringMustMatch { | ||
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| String value(); | ||
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| } |
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74 changes: 74 additions & 0 deletions
74
...int-impl/src/main/java/io/toolisticon/aptk/constraints/StringMustMatchConstraintImpl.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| package io.toolisticon.aptk.constraints; | ||
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| import io.toolisticon.aptk.compilermessage.api.DeclareCompilerMessage; | ||
| import io.toolisticon.aptk.tools.wrapper.AnnotationMirrorWrapper; | ||
| import io.toolisticon.aptk.tools.wrapper.AnnotationValueWrapper; | ||
| import io.toolisticon.aptk.tools.wrapper.ElementWrapper; | ||
| import io.toolisticon.aptk.tools.wrapper.ExecutableElementWrapper; | ||
| import io.toolisticon.spiap.api.SpiService; | ||
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| import javax.lang.model.element.AnnotationMirror; | ||
| import javax.lang.model.element.Element; | ||
| import javax.lang.model.element.ExecutableElement; | ||
| import java.lang.annotation.Annotation; | ||
| import java.util.Optional; | ||
| import java.util.regex.Pattern; | ||
| import java.util.regex.PatternSyntaxException; | ||
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| @SpiService(value = AnnotationConstraintSpi.class) | ||
| @DeclareCompilerMessage(code = "STRINGMUSTMATCH_001", enumValueName = "STRINGMUSTMATCH_ERROR_WRONG_USAGE", message = "'${0}' Constraint violated: Annotation ${1} attribute ${2} value(s) must match regular expression: ${3}", processorClass = BasicConstraints.class) | ||
| public class StringMustMatchConstraintImpl implements AnnotationConstraintSpi { | ||
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| @Override | ||
| public Class<? extends Annotation> getSupportedAnnotation() { | ||
| return StringMustMatch.class; | ||
| } | ||
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| @Override | ||
| public boolean checkConstraints(Element annotatedElement, AnnotationMirror annotationMirrorToCheck, AnnotationMirror constraintAnnotationMirror, String attributeNameToBeCheckedByConstraint) { | ||
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| ElementWrapper<Element> wrappedElement = ElementWrapper.wrap(annotatedElement); | ||
| Optional<ElementWrapper<Element>> enclosingElement = wrappedElement.getEnclosingElement(); | ||
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| if (!enclosingElement.isPresent() || !enclosingElement.get().isAnnotation() || !wrappedElement.isExecutableElement()) { | ||
| // TODO: must send warning that constraint is ignored because its not placed correctly | ||
| wrappedElement.compilerMessage(annotationMirrorToCheck).asWarning().write(BasicConstraintsCompilerMessages.BASE_WARNING_INVALID_USAGE_OF_CONSTRAINT, constraintAnnotationMirror.getAnnotationType().asElement().getSimpleName()); | ||
| return true; | ||
| } | ||
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| // It's safe to cast now | ||
| StringMustMatchWrapper constraintWrapper = StringMustMatchWrapper.wrap(constraintAnnotationMirror); | ||
| Optional<AnnotationValueWrapper> attribute = AnnotationMirrorWrapper.wrap(annotationMirrorToCheck).getAttribute(attributeNameToBeCheckedByConstraint); | ||
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| if (attribute.isPresent()) { | ||
| try { | ||
| Pattern pattern = Pattern.compile(constraintWrapper.value()); | ||
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| if (attribute.get().isArray()) { | ||
| for (AnnotationValueWrapper value : attribute.get().getArrayValue()) { | ||
| if (!pattern.matcher(value.getStringValue()).matches()) { | ||
| wrappedElement.compilerMessage(annotationMirrorToCheck,attribute.get().unwrap()).asError().write(BasicConstraintsCompilerMessages.STRINGMUSTMATCH_ERROR_WRONG_USAGE,UtilityFunctions.getSimpleName(constraintAnnotationMirror), UtilityFunctions.getSimpleName(annotationMirrorToCheck),attributeNameToBeCheckedByConstraint,constraintWrapper.value()); | ||
| return false; | ||
| } | ||
| } | ||
| } else { | ||
| if (!pattern.matcher(attribute.get().getStringValue()).matches()) { | ||
| wrappedElement.compilerMessage(annotationMirrorToCheck,attribute.get().unwrap()).asError().write(BasicConstraintsCompilerMessages.STRINGMUSTMATCH_ERROR_WRONG_USAGE,UtilityFunctions.getSimpleName(constraintAnnotationMirror), UtilityFunctions.getSimpleName(annotationMirrorToCheck),attributeNameToBeCheckedByConstraint,constraintWrapper.value()); | ||
| return false; | ||
| } | ||
| } | ||
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| } catch (PatternSyntaxException e) { | ||
| //TODO: must print warning that constraint is wrong and must be ignored | ||
| return true; | ||
| } | ||
| } | ||
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| AnnotationMirrorWrapper annotationMirrorWrapper = AnnotationMirrorWrapper.wrap(annotationMirrorToCheck); | ||
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| return true; | ||
| } | ||
| } |
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