Java Code Examples for org.eclipse.xtext.common.types.access.IJvmTypeProvider#findTypeByName()

/**
 * looks up a JVMType corresponding to the given {@link Class}. This method ignores any Jvm types created in non-
 * {@link TypeResource} in the given context's resourceSet, but goes straight to the Java-layer, using a
 * {@link IJvmTypeProvider}.
 * 
 * @return the JvmType with the same qualified name as the given {@link Class} object, or null if no such JvmType
 *         could be found using the context's resourceSet.
 */
public JvmType findDeclaredType(String typeName, Notifier context) {
	if (typeName == null)
		throw new NullPointerException("typeName");
	if (context == null)
		throw new NullPointerException("context");
	ResourceSet resourceSet = EcoreUtil2.getResourceSet(context);
	if (resourceSet == null)
		return null;
	// make sure a type provider is configured in the resource set. 
	IJvmTypeProvider typeProvider = typeProviderFactory.findOrCreateTypeProvider(resourceSet);
	try {
		final JvmType result = typeProvider.findTypeByName(typeName);
		return result;
	} catch (RuntimeException e) {
		operationCanceledManager.propagateAsErrorIfCancelException(e);
		log.info("Couldn't find JvmType for name '" + typeName + "' in context " + context, e);
		return null;
	}
}
 

@Test public void testNavigateToXtendClass() throws Exception {
	IFile xtendFile = testHelper.createFile(
			"test/XtendClass", 
			"package test\nclass XtendClass {}");
	IFile javaFile = testHelper.createFileImpl(
			WorkbenchTestHelper.TESTPROJECT_NAME + "/src/test/JavaClass.java", 
			"package test;\npublic class JavaClass extends XtendClass {}");
	waitForBuild();

	assertNumberOfMarkers(xtendFile, 0);
	assertNumberOfMarkers(javaFile, 0);
	
	ResourceSet resourceSet = resourceSetProvider.get(testHelper.getProject());
	IJvmTypeProvider jvmTypeProvider = typeProviderFactory.findOrCreateTypeProvider(resourceSet);
	JvmType javaType = jvmTypeProvider.findTypeByName("test.JavaClass");
	assertNotNull(javaType);
	assertTrue(javaType instanceof JvmDeclaredType);
	JvmDeclaredType declaredJavaType = (JvmDeclaredType) javaType;
	JvmTypeReference superType = declaredJavaType.getSuperTypes().get(0);
	JvmType xtendType = superType.getType();
	assertNotNull(xtendType);
	assertEquals("test.XtendClass", xtendType.getQualifiedName());
	Resource xtendResource = xtendType.eResource();
	assertEquals("platform:/resource" + xtendFile.getFullPath(), xtendResource.getURI().toString());
}
 

@Test public void testGetXtendClassDirectly() throws Exception {
	IFile xtendFile = testHelper.createFile(
			"test/XtendClass", 
			"package test\nclass XtendClass {}");
	waitForBuild();

	assertNumberOfMarkers(xtendFile, 0);
	
	ResourceSet resourceSet = resourceSetProvider.get(testHelper.getProject());
	IJvmTypeProvider jvmTypeProvider = typeProviderFactory.findOrCreateTypeProvider(resourceSet);
	JvmType xtendType = jvmTypeProvider.findTypeByName("test.XtendClass");
	assertNotNull(xtendType);
	assertEquals("test.XtendClass", xtendType.getQualifiedName());
	Resource xtendResource = xtendType.eResource();
	assertEquals("platform:/resource" + xtendFile.getFullPath(), xtendResource.getURI().toString());
}
 

@Test public void testGetXtendClassAsArray() throws Exception {
	IFile xtendFile = testHelper.createFile(
			"test/XtendClass", 
			"package test\nclass XtendClass {}");
	waitForBuild();

	assertNumberOfMarkers(xtendFile, 0);
	
	ResourceSet resourceSet = resourceSetProvider.get(testHelper.getProject());
	IJvmTypeProvider jvmTypeProvider = typeProviderFactory.findOrCreateTypeProvider(resourceSet);
	JvmType xtendArrayType = jvmTypeProvider.findTypeByName("test.XtendClass[][]");
	assertNotNull(xtendArrayType);
	assertTrue(xtendArrayType instanceof JvmArrayType);
	assertEquals("test.XtendClass[][]", xtendArrayType.getQualifiedName());
	Resource xtendResource = xtendArrayType.eResource();
	assertEquals("platform:/resource" + xtendFile.getFullPath(), xtendResource.getURI().toString());
}
 

private JvmAnnotationType findAnnotationType(Class<? extends Annotation> type, Notifier context) {
	ResourceSet resourceSet = EcoreUtil2.getResourceSet(context);
	if (resourceSet == null)
		return null;
	IJvmTypeProvider typeProvider = typeProviderFactory.findOrCreateTypeProvider(resourceSet);
	try {
		final JvmType result = typeProvider.findTypeByName(type.getName());
		if (result instanceof JvmAnnotationType)
			return (JvmAnnotationType) result;
		return null;
	} catch (RuntimeException e) {
		return null;
	}
}
 

@Override
public void completeReferenceHolder_SubtypeReference(EObject model, Assignment assignment,
		ContentAssistContext context, ICompletionProposalAcceptor acceptor) {
	ResourceSet resourceSet = model.eResource().getResourceSet();
	IJvmTypeProvider typeProvider = typeProviderFactory.findOrCreateTypeProvider(resourceSet);
	JvmType superType = typeProvider.findTypeByName(Collection.class.getName());
	typesProposalProvider.createSubTypeProposals(superType, this, context, ContentAssistTestLanguagePackage.Literals.REFERENCE_HOLDER__SUBTYPE_REFERENCE, acceptor);
}
 

@Test
public void testDefaultJavaMethod() {
  final IJvmTypeProvider typeProvider = this.typeProviderFactory.createTypeProvider();
  JvmType _findTypeByName = typeProvider.findTypeByName(JavaInterface.class.getCanonicalName());
  final JvmGenericType intf = ((JvmGenericType) _findTypeByName);
  this.doTestMethods(intf);
}
 

@Test public void testNavigateToXtendClassArray() throws Exception {
	IFile xtendFile = testHelper.createFile(
			"test/XtendClass", 
			"package test\nclass XtendClass {}");
	IFile javaFile = testHelper.createFileImpl(
			WorkbenchTestHelper.TESTPROJECT_NAME + "/src/test/JavaClass.java", 
			"package test;\npublic class JavaClass extends java.util.ArrayList<XtendClass[]> {}");
	waitForBuild();

	assertNumberOfMarkers(xtendFile, 0);
	assertNumberOfMarkers(javaFile, 0);
	
	ResourceSet resourceSet = resourceSetProvider.get(testHelper.getProject());
	IJvmTypeProvider jvmTypeProvider = typeProviderFactory.findOrCreateTypeProvider(resourceSet);
	JvmType javaType = jvmTypeProvider.findTypeByName("test.JavaClass");
	assertNotNull(javaType);
	assertTrue(javaType instanceof JvmDeclaredType);
	JvmDeclaredType declaredJavaType = (JvmDeclaredType) javaType;
	JvmParameterizedTypeReference arrayList = (JvmParameterizedTypeReference) declaredJavaType.getSuperTypes().get(0);
	JvmTypeReference arrayReference = arrayList.getArguments().get(0);
	assertTrue(arrayReference instanceof JvmGenericArrayTypeReference);
	JvmType arrayType = arrayReference.getType();
	assertTrue(arrayType instanceof JvmArrayType);
	JvmType xtendType = ((JvmArrayType) arrayType).getComponentType();
	assertNotNull(xtendType);
	assertEquals("test.XtendClass", xtendType.getQualifiedName());
	Resource xtendResource = xtendType.eResource();
	assertEquals("platform:/resource" + xtendFile.getFullPath(), xtendResource.getURI().toString());
}
 

private JvmTypeReference innerFindType(Notifier context, String typeName) {
	final IJvmTypeProvider provider = getTypeResolutionContext();
	JvmType type = null;
	if (provider != null) {
		type = provider.findTypeByName(typeName);
	}
	TypeReferences typeRefs = getTypeReferences();
	if (type == null) {
		type = typeRefs.findDeclaredType(typeName, context);
	}
	if (type == null) {
		return null;
	}
	return typeRefs.createTypeRef(type);
}
 

public JvmParameterizedTypeReferenceConstructor(String qualifiedName, TypesFactory typesFactory, IJvmTypeProvider typesProvider, JvmParameterizedTypeReferenceConstructor parent) {
	this(typesProvider.findTypeByName(qualifiedName),typesFactory,typesProvider,parent);
}
 

public JvmParameterizedTypeReferenceConstructor(String qualifiedName, TypesFactory typesFactory, IJvmTypeProvider typesProvider, JvmParameterizedTypeReferenceConstructor parent) {
	this(typesProvider.findTypeByName(qualifiedName),typesFactory,typesProvider,parent);
}
 

@SuppressWarnings("checkstyle:npathcomplexity")
@Override
public ImageDescriptor getImageDescriptorForQualifiedName(String qualifiedName, Notifier context,
		IJvmTypeProvider typeProvider) {
	JvmType type = null;
	if (typeProvider != null) {
		type = typeProvider.findTypeByName(qualifiedName);
	}
	if (type == null && context != null) {
		type = this.services.getTypeReferences().findDeclaredType(qualifiedName, context);
	}
	int adornments = this.adornments.get(type);
	JvmVisibility visibility = JvmVisibility.DEFAULT;
	if (type != null) {
		if (type.eClass() == TypesPackage.Literals.JVM_GENERIC_TYPE) {
			final JvmGenericType gtype = (JvmGenericType) type;
			visibility = gtype.getVisibility();
			final int ecoreCode = this.inheritanceHelper.getSarlElementEcoreType(gtype);
			switch (ecoreCode) {
			case SarlPackage.SARL_AGENT:
				return this.images.forAgent(visibility, this.adornments.get(gtype));
			case SarlPackage.SARL_BEHAVIOR:
				return this.images.forBehavior(visibility, this.adornments.get(gtype));
			case SarlPackage.SARL_CAPACITY:
				// Remove the "abstract" ornment because capacities are always abstract.
				adornments = (adornments & JavaElementImageDescriptor.ABSTRACT) ^ adornments;
				return this.images.forCapacity(visibility, adornments);
			case SarlPackage.SARL_EVENT:
				return this.images.forEvent(visibility, this.adornments.get(gtype));
			case SarlPackage.SARL_SKILL:
				return this.images.forSkill(visibility, this.adornments.get(gtype));
			default:
				if (gtype.isInterface()) {
					return this.images.forInterface(visibility, this.adornments.get(gtype));
				}
			}
		} else if (type.eClass() == TypesPackage.Literals.JVM_ENUMERATION_TYPE) {
			final JvmEnumerationType etype = (JvmEnumerationType) type;
			visibility = etype.getVisibility();
			return this.images.forEnum(visibility, adornments);
		} else if (type.eClass() == TypesPackage.Literals.JVM_ANNOTATION_TYPE) {
			final JvmAnnotationType atype = (JvmAnnotationType) type;
			visibility = atype.getVisibility();
			return this.images.forAnnotation(visibility, adornments);
		} else {
			visibility = JvmVisibility.DEFAULT;
		}
	}
	// Default icon is the class icon.
	return this.images.forClass(visibility, adornments);
}