Java Code Examples for org.eclipse.core.runtime.Platform#getExtensionRegistry()

private synchronized void loadExtensionResourceParticipants() {
	if (extensionResourceParticipantsLoaded)
		return;
	// Immediately set the flag, as to ensure that this method is never
	// called twice
	extensionResourceParticipantsLoaded = true;

	Trace.trace(Trace.EXTENSION_POINT, "->- Loading .typeScriptResourceParticipants extension point ->-");

	IExtensionRegistry registry = Platform.getExtensionRegistry();
	IConfigurationElement[] cf = registry.getConfigurationElementsFor(TypeScriptCorePlugin.PLUGIN_ID,
			EXTENSION_TYPESCRIPT_RESOURCE_PARTICIPANTS);
	
	addExtensionResourceParticipants(cf);
	addRegistryListenerIfNeeded();

	Trace.trace(Trace.EXTENSION_POINT, "-<- Done loading .typeScriptResourceParticipants extension point -<-");
}
 

private synchronized void loadExtensionRepositories() {
	if (extensionRepositoriesLoaded)
		return;

	// Immediately set the flag, as to ensure that this method is never
	// called twice
	extensionRepositoriesLoaded = true;

	Trace.trace(Trace.EXTENSION_POINT, "->- Loading .typeScriptRepositories extension point ->-");

	IExtensionRegistry registry = Platform.getExtensionRegistry();
	IConfigurationElement[] cf = registry.getConfigurationElementsFor(TypeScriptCorePlugin.PLUGIN_ID,
			EXTENSION_TYPESCRIPT_REPOSITORIES);
	addExtensionRepositories(cf);
	resetDefaultRepository();
	addRegistryListenerIfNeeded();

	Trace.trace(Trace.EXTENSION_POINT, "-<- Done loading .typeScriptRepositories extension point -<-");
}
 

/**
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 * 
 * @throws CoreException
 * 
 * @throws CoreException
 */
public static List<ExtendPopupMenu> loadExtensions(ERDiagramEditor editor)
		throws CoreException {
	List<ExtendPopupMenu> extendPopupMenuList = new ArrayList<ExtendPopupMenu>();

	IExtensionRegistry registry = Platform.getExtensionRegistry();
	IExtensionPoint extensionPoint = registry
			.getExtensionPoint(EXTENSION_POINT_ID);

	if (extensionPoint != null) {
		for (IExtension extension : extensionPoint.getExtensions()) {
			for (IConfigurationElement configurationElement : extension
					.getConfigurationElements()) {

				ExtendPopupMenu extendPopupMenu = ExtendPopupMenu
						.createExtendPopupMenu(configurationElement, editor);

				if (extendPopupMenu != null) {
					extendPopupMenuList.add(extendPopupMenu);
				}
			}
		}
	}

	return extendPopupMenuList;
}
 

protected void registerFontDirectories() {
  myFontCache.registerDirectory(System.getProperty("java.home") + "/lib/fonts");
  IExtensionRegistry extensionRegistry = Platform.getExtensionRegistry();
  IConfigurationElement[] configElements = extensionRegistry.getConfigurationElementsFor("org.ganttproject.impex.htmlpdf.FontDirectory");
  for (int i = 0; i < configElements.length; i++) {
    final String dirName = configElements[i].getAttribute("name");
    if (Boolean.TRUE.toString().equalsIgnoreCase(configElements[i].getAttribute("absolute"))) {
      myFontCache.registerDirectory(dirName);
    } else {
      String namespace = configElements[i].getDeclaringExtension().getNamespaceIdentifier();
      URL dirUrl = Platform.getBundle(namespace).getResource(dirName);
      if (dirUrl == null) {
        GPLogger.getLogger(ITextEngine.class).warning(
            "Failed to find directory " + dirName + " in plugin " + namespace);
        continue;
      }
      try {
        URL resolvedDir = Platform.resolve(dirUrl);
        myFontCache.registerDirectory(resolvedDir.getPath());
      } catch (IOException e) {
        GPLogger.getLogger(ITextEngine.class).log(Level.WARNING, e.getMessage(), e);
        continue;
      }
    }
  }
}
 

public static ISVNRepositorySourceProvider[] getRepositorySourceProviders() throws Exception {
	if (repositorySourceProviders == null) {
		List<ISVNRepositorySourceProvider> repositorySourceProviderList = new ArrayList<ISVNRepositorySourceProvider>();
		IExtensionRegistry extensionRegistry = Platform.getExtensionRegistry();
		IConfigurationElement[] configurationElements = extensionRegistry.getConfigurationElementsFor(REPOSITORY_SOURCE_PROVIDERS);
		for (int i = 0; i < configurationElements.length; i++) {
			IConfigurationElement configurationElement = configurationElements[i];
			ISVNRepositorySourceProvider repositorySourceProvider = (ISVNRepositorySourceProvider)configurationElement.createExecutableExtension("class"); //$NON-NLS-1$
			repositorySourceProvider.setId(configurationElement.getAttribute("id")); //$NON-NLS-1$
			repositorySourceProviderList.add(repositorySourceProvider);
		}
		repositorySourceProviders = new ISVNRepositorySourceProvider[repositorySourceProviderList.size()];
		repositorySourceProviderList.toArray(repositorySourceProviders);
		Arrays.sort(repositorySourceProviders, new Comparator<ISVNRepositorySourceProvider>() {
			public int compare(ISVNRepositorySourceProvider o1, ISVNRepositorySourceProvider o2) {
				return o1.getName().compareTo(o2.getName());
			}		
		});
	}
	return repositorySourceProviders;
}
 

/**
 * Returns all configuration elements of appcontext extension point
 * 
 * @return
 */
private static IConfigurationElement[] getConfigurationElements( )
{
	// load extension point entry
	IExtensionRegistry registry = Platform.getExtensionRegistry( );
	IExtensionPoint extensionPoint = registry
			.getExtensionPoint( APPCONTEXT_EXTENSION_ID );

	if ( extensionPoint != null )
	{
		// get all configuration elements
		return extensionPoint.getConfigurationElements( );
	}

	return null;
}
 

public static WorkspaceAction[] getMergeProviders() throws Exception {
	if (mergeProviders == null) {
		ArrayList mergeProviderList = new ArrayList();
		IExtensionRegistry extensionRegistry = Platform.getExtensionRegistry();
		IConfigurationElement[] configurationElements = extensionRegistry.getConfigurationElementsFor(MERGE_PROVIDERS);
		for (int i = 0; i < configurationElements.length; i++) {
			IConfigurationElement configurationElement = configurationElements[i];
			WorkspaceAction mergeProvider = (WorkspaceAction)configurationElement.createExecutableExtension("class"); //$NON-NLS-1$
			mergeProvider.setName(configurationElement.getAttribute("name")); //$NON-NLS-1$
			mergeProviderList.add(mergeProvider);
		}
		mergeProviders = new WorkspaceAction[mergeProviderList.size()];
		mergeProviderList.toArray(mergeProviders);
	}
	return mergeProviders;
}
 

public static List<ExtendPopupMenu> loadExtensions(MainDiagramEditor editor) throws CoreException {
    final List<ExtendPopupMenu> extendPopupMenuList = new ArrayList<>();

    final IExtensionRegistry registry = Platform.getExtensionRegistry();
    final IExtensionPoint extensionPoint = registry.getExtensionPoint(EXTENSION_POINT_ID);

    if (extensionPoint != null) {
        for (final IExtension extension : extensionPoint.getExtensions()) {
            for (final IConfigurationElement configurationElement : extension.getConfigurationElements()) {
                final ExtendPopupMenu extendPopupMenu = ExtendPopupMenu.createExtendPopupMenu(configurationElement, editor);
                if (extendPopupMenu != null) {
                    extendPopupMenuList.add(extendPopupMenu);
                }
            }
        }
    }
    return extendPopupMenuList;
}
 

public ScriptEngineFactoryManagerImpl( )
{
	super( );
	configs = new HashMap<String, IConfigurationElement>( );
	IExtensionRegistry extensionRegistry = Platform.getExtensionRegistry( );
	IExtensionPoint extensionPoint = extensionRegistry
			.getExtensionPoint( "org.eclipse.birt.core.ScriptEngineFactory" );

	IExtension[] extensions = extensionPoint.getExtensions( );
	for ( IExtension extension : extensions )
	{
		IConfigurationElement[] configurations = extension
				.getConfigurationElements( );
		for ( IConfigurationElement configuration : configurations )
		{
			String scriptName = configuration.getAttribute( "scriptName" );
			configs.put( scriptName, configuration );
		}
	}
}
 

public static IExtension[] getExtensions(String type) {
    IExtension[] extensions = extensionsCache.get(type);
    if (extensions == null) {
        IExtensionRegistry registry = Platform.getExtensionRegistry();
        if (registry != null) { // we may not be in eclipse env when testing
            try {
                IExtensionPoint extensionPoint = registry.getExtensionPoint(type);
                extensions = extensionPoint.getExtensions();
                extensionsCache.put(type, extensions);
            } catch (Exception e) {
                Log.log(IStatus.ERROR, "Error getting extension for:" + type, e);
                throw new RuntimeException(e);
            }
        } else {
            extensions = new IExtension[0];
        }
    }
    return extensions;
}
 

/**
 * Though this listener reacts to the extension point changes, there could have been contributions before
 * it's been registered. This will parse these initial contributions.
 */
public void parseInitialContributions() {
    final IExtensionRegistry registry = Platform.getExtensionRegistry();

    for (IExtension extension : registry.getExtensionPoint(CLASS_PROVIDER_EXTENSION_POINT).getExtensions()) {
        parseClassProviderExtension(extension);
    }
}
 

/**
 * Load the plugins from the extension point, and fill the lists of entries.
 */
protected void load(String extensionId) {
  IExtensionRegistry registry = Platform.getExtensionRegistry();
  IExtensionPoint point = registry.getExtensionPoint(extensionId);
  if (null == point) {
    return;
  }
  for (IExtension extension: point.getExtensions()) {
    IContributor contrib = extension.getContributor();
    String bundleId = contrib.getName();
    // ... and for each elements
    for (IConfigurationElement element :
        extension.getConfigurationElements()) {

      // obtain an object on the entry
      ContributionEntry<T> entry = buildEntry(bundleId, element);
      String entryId = entry.getId();
      if (Strings.isNullOrEmpty(entryId)) {
        LOG.warn("Empty entry id in {} for {}", bundleId, extensionId);
      }
      entries.put(entryId, entry);

      // Try to instantiate the contribution and install it.
      try {
        T plugin = entry.prepareInstance();
        installContribution(entryId, plugin);
      } catch (CoreException err) {
        reportException(entryId, err);
        throw new RuntimeException(err);
      }
    }
  }
}
 

private void addRegistryListenerIfNeeded() {
	if (registryListenerIntialized)
		return;

	IExtensionRegistry registry = Platform.getExtensionRegistry();
	registry.addRegistryChangeListener(this, TypeScriptCorePlugin.PLUGIN_ID);
	registryListenerIntialized = true;
}
 

protected List<Data<T>> getDataImpl(DataRetriever<T> c) {
  List<Data<T>> classes = new ArrayList<Data<T>>();

  IExtensionRegistry extensionRegistry = Platform.getExtensionRegistry();
  IExtensionPoint extensionPoint = pluginId == null ? extensionRegistry.getExtensionPoint(extensionPointName) :
    extensionRegistry.getExtensionPoint(pluginId, extensionPointName);
  // try old names: these need to be rewritten
  if(extensionPoint == null && pluginId != null && pluginId.startsWith("com.gwtplugins")) {
    String rewritten = pluginId.replace("com.gwtplugins", "com.google");
    extensionPoint = extensionRegistry.getExtensionPoint(rewritten, extensionPointName);
    if(extensionPoint != null) {
      System.err.println(">>>> OLD EXTENSION POINT REFERENCE: " + pluginId);
      new Throwable(">>>> OLD EXTENSION POINT REFERENCE: " + pluginId + " : " + extensionPointName).printStackTrace();
    }
  }
  if (extensionPoint != null) {
    IExtension[] extensions = extensionPoint.getExtensions();
    for (IExtension extension : extensions) {
      IConfigurationElement[] configurationElements = extension.getConfigurationElements();
      for (IConfigurationElement configurationElement : configurationElements) {
        T value = c.getData(configurationElement, attributeName);
        if (value != null) {
          classes.add(new Data<T>(value, configurationElement));
        }
      }
    }
  }
  return classes;
}
 

/**
 * Parses initial contributions.
 */
public void parseInitialContributions() {
    IExtensionRegistry registry = Platform.getExtensionRegistry();
    IExtensionPoint extensionPoint = registry.getExtensionPoint(TEMPLATE_REGISTERY_EXTENSION_POINT);
    for (IExtension extension : extensionPoint.getExtensions()) {
        add(extension);
    }
}
 

/**
 * Parses initial contributions.
 */
public void parseInitialContributions() {
    IExtensionRegistry registry = Platform.getExtensionRegistry();
    IExtensionPoint extensionPoint = registry.getExtensionPoint(SERVICE_REGISTERY_EXTENSION_POINT);
    for (IExtension extension : extensionPoint.getExtensions()) {
        add(extension);
    }
}
 

/**
 * Returns all contributed Java element filters.
 * @return all contributed Java element filters
 */
public static FilterDescriptor[] getFilterDescriptors() {
	if (fgFilterDescriptors == null) {
		IExtensionRegistry registry= Platform.getExtensionRegistry();
		IConfigurationElement[] elements= registry.getConfigurationElementsFor(JavaUI.ID_PLUGIN, EXTENSION_POINT_NAME);
		fgFilterDescriptors= createFilterDescriptors(elements);
	}
	return fgFilterDescriptors;
}
 

/**
 * Reads all extensions.
 * <p>
 * This method can be called more than once in
 * order to reload from a changed extension registry.
 * </p>
 */
public void reloadExtensions() {
	IExtensionRegistry registry= Platform.getExtensionRegistry();
	Map<String, JavaFoldingStructureProviderDescriptor> map= new HashMap<String, JavaFoldingStructureProviderDescriptor>();

	IConfigurationElement[] elements= registry.getConfigurationElementsFor(JavaPlugin.getPluginId(), EXTENSION_POINT);
	for (int i= 0; i < elements.length; i++) {
		JavaFoldingStructureProviderDescriptor desc= new JavaFoldingStructureProviderDescriptor(elements[i]);
		map.put(desc.getId(), desc);
	}

	synchronized(this) {
		fDescriptors= Collections.unmodifiableMap(map);
	}
}
 

/**
 * Returns all available extension names for report design files.
 * 
 * @return the extension name lisr
 */
public List<String> getReportExtensionNameList( )
{
	if ( reportExtensionNames == null )
	{
		reportExtensionNames = new ArrayList<String>( );

		IExtensionRegistry extensionRegistry = Platform.getExtensionRegistry( );
		IConfigurationElement[] elements = extensionRegistry.getConfigurationElementsFor( "org.eclipse.ui.editors" ); //$NON-NLS-1$
		for ( int i = 0; i < elements.length; i++ )
		{

			String id = elements[i].getAttribute( "id" ); //$NON-NLS-1$
			if ( "org.eclipse.birt.report.designer.ui.editors.ReportEditor".equals( id ) ) //$NON-NLS-1$
			{
				if ( elements[i].getAttribute( "extensions" ) != null ) //$NON-NLS-1$
				{
					String[] extensionNames = elements[i].getAttribute( "extensions" ) //$NON-NLS-1$
							//$NON-NLS-1$
							.split( "," ); //$NON-NLS-1$
					for ( int j = 0; j < extensionNames.length; j++ )
					{
						extensionNames[j] = extensionNames[j].trim( );
						if ( !reportExtensionNames.contains( extensionNames[j] ) )
						{
							reportExtensionNames.add( extensionNames[j] );
						}
					}
				}
			}
		}

		IContentTypeManager contentTypeManager = Platform.getContentTypeManager( );
		IContentType contentType = contentTypeManager.getContentType( "org.eclipse.birt.report.designer.ui.editors.reportdesign" ); //$NON-NLS-1$
		String[] fileSpecs = contentType.getFileSpecs( IContentType.FILE_EXTENSION_SPEC );
		for ( int i = 0; i < fileSpecs.length; i++ )
		{
			reportExtensionNames.add( fileSpecs[i] );
		}
	}
	return reportExtensionNames;
}
 

public IExtensionRegistry getExtensionRegistry( )
{
	return new EclipseExtensionRegistry( Platform.getExtensionRegistry( ) );
}