Java 类org.eclipse.xtext.resource.impl.DefaultResourceDescription 实例源码

@Override
public IResourceDescription getResourceDescription(final Resource resource) {
  if ((resource instanceof JavaResource)) {
    final boolean initialized = (((JavaResource)resource).isInitialized() || ((JavaResource)resource).isInitializing());
    try {
      if ((!initialized)) {
        ((JavaResource)resource).eSetDeliver(false);
        ((JavaResource)resource).installStubs();
      }
      final DefaultResourceDescription result = new DefaultResourceDescription(resource, this.descriptionStrategy, this.cache);
      if ((!initialized)) {
        final Consumer<IEObjectDescription> _function = (IEObjectDescription it) -> {
          it.getEObjectURI();
        };
        result.getExportedObjects().forEach(_function);
      }
      return result;
    } finally {
      if ((!initialized)) {
        ((JavaResource)resource).discardDerivedState();
        ((JavaResource)resource).eSetDeliver(true);
      }
    }
  }
  throw new IllegalArgumentException("Can only handle JavaResources");
}

@Before
public void setUp() throws Exception {
    EObject copy = EcoreUtil.copy(EcorePackage.eINSTANCE);
    resource = new ResourceImpl();
    resource.getContents().add(copy);
    IQualifiedNameProvider nameProvider = new IQualifiedNameProvider.AbstractImpl() {
        @Override
        public QualifiedName getFullyQualifiedName(EObject obj) {
            if (obj instanceof ENamedElement)
                return QualifiedName.create(((ENamedElement) obj).getName());
            return null;
        }
    };
    DefaultResourceDescriptionStrategy descriptionStrategy = new DefaultResourceDescriptionStrategy();
    descriptionStrategy.setQualifiedNameProvider(nameProvider);
    resourceDescription = new DefaultResourceDescription(resource, descriptionStrategy) {
        @Override
        public Iterable<QualifiedName> getImportedNames() {
            return importedNames;
        }
    };
    manager = new DefaultResourceDescriptionManager();
    importedNames = Collections.emptySet();
}

@Override
public void setUp() throws Exception {
    super.setUp();
    with(new IndexTestLanguageStandaloneSetup());

    globalScopeProvider = new ResourceSetGlobalScopeProvider();
    nameProvider = new DefaultDeclarativeQualifiedNameProvider();
    nameConverter = new IQualifiedNameConverter.DefaultImpl();
    final DefaultResourceDescriptionStrategy strategy = new DefaultResourceDescriptionStrategy();
    strategy.setQualifiedNameProvider(nameProvider);
    final DefaultResourceDescriptionManager resourceDescMnr = new DefaultResourceDescriptionManager() {
        @Override
        public IResourceDescription getResourceDescription(Resource resource) {
            DefaultResourceDescription resourceDescription = new DefaultResourceDescription(resource,
                    strategy);
            return resourceDescription;
        }

    };
    final DefaultResourceServiceProvider provider = new DefaultResourceServiceProvider() {
        @Override
        public Manager getResourceDescriptionManager() {
            return resourceDescMnr;
        }
    };
    globalScopeProvider.setGlobalResourceDecriptionProvider(new GlobalResourceDescriptionProvider(new ResourceServiceProviderRegistryImpl() {
        @Override
        public IResourceServiceProvider getResourceServiceProvider(URI uri, String contentType) {
            return provider;
        }
    }));
    CaseInsensitivityHelper caseInsensitivityHelper = new CaseInsensitivityHelper();
    globalScopeProvider.setCaseInsensitivityHelper(caseInsensitivityHelper);
    scopeProvider = new ImportedNamespaceAwareLocalScopeProvider(globalScopeProvider, nameProvider, nameConverter, caseInsensitivityHelper);
}

/**
 * Returns the containers for the given handles, where one of the containers will also include {@code desc} when appropriate.
 * 
 * @param handles
 *          handles to get containers for, must not be {@code null}
 * @param desc
 *          description to add, must not be {@code null}
 * @param resourceDescriptions
 *          resource descriptions, must not be {@code null}
 * @return list of containers, never {@code null}
 */
protected List<IContainer> getContainersForHandlesAndResource(final List<String> handles, final IResourceDescription desc, final IResourceDescriptions resourceDescriptions) {
  List<IContainer> result = getVisibleContainers(handles, resourceDescriptions);
  if (!result.isEmpty()) {
    URI descURI = desc.getURI();
    for (int i = 0; i < result.size(); i++) {
      if (result.get(i).getResourceDescription(descURI) != null) {
        return result;
      }
    }
    // Do *not* add the context resource description itself if we're in the first phase of a build: 'desc' itself
    // may not be in any consistent state, and adding it to the containers may result in recursive invocations of
    // getEObjectDescriptions(), leading to a stack overflow since it may in turn invoke getVisibleContainers() again.
    if (desc instanceof DefaultResourceDescription) {
      DefaultResourceDescription d = (DefaultResourceDescription) desc;
      if (BuildPhases.isIndexing(d.getResource())) {
        return result;
      }
    }
    // the IResourceDescription was found nowhere, add it to the first one that matches the description's domain.
    IDomain descDomain = mapper.map(descURI);
    IContainer wrappedContainer = null;
    int index = 0;
    for (int i = 0; i < result.size(); i++) {
      IContainer container = result.get(i);
      IDomain containerDomain = mapper.map(container);
      if (containerDomain != null && containerDomain.equals(descDomain)) {
        wrappedContainer = new DescriptionAddingContainer(desc, container);
        result.set(index, wrappedContainer);
        return result;
      }
      index++;
    }
    // If we get here, we found no container with a matching domain. Add to the first, but use a DescriptionAddingContainer that
    // will add the description at the end.
    wrappedContainer = new DescriptionAtEndAddingContainer(desc, result.get(0));
    result.set(0, wrappedContainer);
  }
  return result;
}

@Override
public IResourceDescription getResourceDescription(Resource resource) {
    return new DefaultResourceDescription(resource, resourceDescriptionStrategy, cache);
}