[incubator-kie-issues#1373] Fixing rest generation config.

kogito-codegen-modules/kogito-codegen-api/src/main/java/org/kie/kogito/codegen/api/context/KogitoApplicationPropertyProvider.java

@@ -47,6 +47,11 @@ public void setApplicationProperty(String key, String value) {
             public <T> Optional<T> getApplicationProperty(String property, Class<T> clazz) {
                 return Optional.ofNullable(convert(properties.getProperty(property), clazz));
             }
+
+            @Override
+            public void removeApplicationProperty(String key) {
+                properties.remove(key);
+            }
         };
     }
 
@@ -57,4 +62,6 @@ public <T> Optional<T> getApplicationProperty(String property, Class<T> clazz) {
     Collection<String> getApplicationProperties();
 
     void setApplicationProperty(String key, String value);
+
+    void removeApplicationProperty(String key);
 }

kogito-codegen-modules/kogito-codegen-api/src/main/java/org/kie/kogito/codegen/api/context/impl/AbstractKogitoBuildContext.java

@@ -155,6 +155,11 @@ public void setApplicationProperty(String key, String value) {
         applicationProperties.setApplicationProperty(key, value);
     }
 
+    @Override
+    public void removeApplicationProperty(String key) {
+        applicationProperties.removeApplicationProperty(key);
+    }
+
     @Override
     public String getPackageName() {
         return packageName;

kogito-codegen-modules/kogito-codegen-core/src/main/java/org/kie/kogito/codegen/core/ApplicationGenerator.java

@@ -49,7 +49,8 @@ public class ApplicationGenerator {
     private static final Logger LOGGER = LoggerFactory.getLogger(ApplicationGenerator.class);
 
     public static final String APPLICATION_CLASS_NAME = "Application";
-    private static final GeneratedFileType APPLICATION_SECTION_TYPE = GeneratedFileType.of("APPLICATION_SECTION", GeneratedFileType.Category.SOURCE);
+    private static final GeneratedFileType APPLICATION_SECTION_TYPE = GeneratedFileType.of("APPLICATION_SECTION",
+            GeneratedFileType.Category.SOURCE);
 
     private final ApplicationContainerGenerator applicationMainGenerator;
     private ApplicationConfigGenerator applicationConfigGenerator;
@@ -95,8 +96,11 @@ public Collection<GeneratedFile> generate() {
 
     public List<GeneratedFile> generateComponents() {
         return generators.stream()
-                .flatMap(gen -> gen.generate().stream())
-                .filter(this::filterGeneratedFile)
+                .flatMap(gen -> {
+                    boolean keepRestFile = keepRestFile(gen);
+                    return gen.generate().stream()
+                            .filter(generatedFile -> filterGeneratedFile(generatedFile, keepRestFile));
+                })
                 .collect(Collectors.toList());
     }
 
@@ -112,8 +116,12 @@ public GeneratedFile generateApplicationDescriptor() {
         return applicationMainGenerator.generate();
     }
 
-    private boolean filterGeneratedFile(GeneratedFile generatedFile) {
-        boolean keepFile = context.hasRESTGloballyAvailable() || !REST_TYPE.equals(generatedFile.type());
+    boolean keepRestFile(Generator generator) {
+        return context.hasRESTForGenerator(generator);
+    }
+
+    private boolean filterGeneratedFile(GeneratedFile generatedFile, boolean keepRestFile) {
+        boolean keepFile = keepRestFile || !REST_TYPE.equals(generatedFile.type());
         if (!keepFile) {
             LOGGER.warn("Skipping file because REST is disabled: " + generatedFile.relativePath());
         }
@@ -134,7 +142,7 @@ private Collection<GeneratedFile> generateApplicationSections() {
 
     /**
      * Method to wire Generator with ApplicationGenerator if enabled
-     *
+     * 
      * @param generator
      * @param <G>
      * @return

kogito-codegen-modules/kogito-codegen-core/src/test/java/org/kie/kogito/codegen/core/ApplicationGeneratorTest.java

@@ -37,6 +37,7 @@
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.kie.kogito.codegen.api.Generator.REST_TYPE;
+import static org.kie.kogito.codegen.api.context.KogitoBuildContext.generateRESTConfigurationKeyForResource;
 
 public class ApplicationGeneratorTest {
 
@@ -168,6 +169,66 @@ public void disableGlobalRestGeneration(KogitoBuildContext.Builder contextBuilde
         }
     }
 
+    @ParameterizedTest
+    @MethodSource("org.kie.kogito.codegen.api.utils.KogitoContextTestUtils#contextBuilders")
+    public void keepRestFile(KogitoBuildContext.Builder contextBuilder) {
+        final KogitoBuildContext context = contextBuilder.build();
+        final ApplicationGenerator appGenerator = new ApplicationGenerator(context);
+        final MockGenerator restGenerator = new MockGenerator(context, true);
+        final String generateRESTConfigurationKeyForResource = generateRESTConfigurationKeyForResource(restGenerator.name());
+
+        assertThat(appGenerator.registerGeneratorIfEnabled(restGenerator))
+                .isNotEmpty();
+        assertThat(appGenerator.getGenerators()).hasSize(1);
+
+        if (context.hasRESTForGenerator(restGenerator)) {
+            // globally and engine-specific disable REST
+            context.setApplicationProperty(KogitoBuildContext.KOGITO_GENERATE_REST, "false");
+            context.setApplicationProperty(generateRESTConfigurationKeyForResource, "false");
+            assertThat(appGenerator.keepRestFile(restGenerator)).isFalse();
+
+            // globally disable REST, engine-specific enable REST
+            context.setApplicationProperty(KogitoBuildContext.KOGITO_GENERATE_REST, "false");
+            context.setApplicationProperty(generateRESTConfigurationKeyForResource, "true");
+            assertThat(appGenerator.keepRestFile(restGenerator)).isFalse();
+
+            // globally enable REST, engine-specific disable REST
+            context.setApplicationProperty(KogitoBuildContext.KOGITO_GENERATE_REST, "true");
+            context.setApplicationProperty(generateRESTConfigurationKeyForResource, "false");
+            assertThat(appGenerator.keepRestFile(restGenerator)).isFalse();
+
+            // globally and engine-specific enable REST
+            context.setApplicationProperty(KogitoBuildContext.KOGITO_GENERATE_REST, "true");
+            context.setApplicationProperty(generateRESTConfigurationKeyForResource, "true");
+            assertThat(appGenerator.keepRestFile(restGenerator)).isTrue();
+
+            // engine-specific enable REST
+            context.removeApplicationProperty(KogitoBuildContext.KOGITO_GENERATE_REST);
+            context.setApplicationProperty(generateRESTConfigurationKeyForResource, "true");
+            assertThat(appGenerator.keepRestFile(restGenerator)).isTrue();
+
+            // engine-specific disable REST
+            context.removeApplicationProperty(KogitoBuildContext.KOGITO_GENERATE_REST);
+            context.setApplicationProperty(generateRESTConfigurationKeyForResource, "false");
+            assertThat(appGenerator.keepRestFile(restGenerator)).isFalse();
+
+            // globally enable REST
+            context.setApplicationProperty(KogitoBuildContext.KOGITO_GENERATE_REST, "true");
+            context.removeApplicationProperty(generateRESTConfigurationKeyForResource);
+            assertThat(appGenerator.keepRestFile(restGenerator)).isTrue();
+
+            // globally disable REST
+            context.setApplicationProperty(KogitoBuildContext.KOGITO_GENERATE_REST, "false");
+            context.removeApplicationProperty(generateRESTConfigurationKeyForResource);
+            assertThat(appGenerator.keepRestFile(restGenerator)).isFalse();
+
+            // defaults
+            context.removeApplicationProperty(KogitoBuildContext.KOGITO_GENERATE_REST);
+            context.removeApplicationProperty(generateRESTConfigurationKeyForResource);
+            assertThat(appGenerator.keepRestFile(restGenerator)).isTrue();
+        }
+    }
+
     private void assertCompilationUnit(final CompilationUnit compilationUnit, final boolean checkCDI) {
         assertThat(compilationUnit).isNotNull();
 

quarkus/extensions/kogito-quarkus-extension-common/kogito-quarkus-common-deployment/src/main/java/org/kie/kogito/quarkus/common/deployment/KogitoQuarkusApplicationPropertiesProvider.java

@@ -48,4 +48,9 @@ public <T> Optional<T> getApplicationProperty(String property, Class<T> clazz) {
     public void setApplicationProperty(String key, String value) {
         System.setProperty(key, value);
     }
+
+    @Override
+    public void removeApplicationProperty(String key) {
+        System.clearProperty(key);
+    }
 }