Java IExtensionPoint.getConfigurationElements方法代码示例

import org.eclipse.core.runtime.IExtensionPoint; //导入方法依赖的package包/类
/**
 * Gets the configuration elements for the plugins that extend our checkin
 * policy extension point.
 *
 * @return an array of configuration elements from plugins that support our
 *         extension point.
 */
private IConfigurationElement[] getConfigurationElementsForCheckinPolicy() {
    final IExtensionRegistry registry = Platform.getExtensionRegistry();

    final IExtensionPoint extensionPoint = registry.getExtensionPoint(CHECKIN_POLICY_EXTENSION_POINT_NAME);

    /*
     * These extension points should always be available even if there are
     * no contributions available (policy implementations), but it's good to
     * check anyway.
     */
    if (extensionPoint == null) {
        final String messageFormat = "Couldn't load extension point {0}"; //$NON-NLS-1$
        final String message = MessageFormat.format(messageFormat, CHECKIN_POLICY_EXTENSION_POINT_NAME);
        log.error(message);
        throw new PolicyLoaderException(message, null);
    }

    return extensionPoint.getConfigurationElements();
}
 

import org.eclipse.core.runtime.IExtensionPoint; //导入方法依赖的package包/类
/**
 * Returns a {@link SingleListenerFacade} of the resource changing listeners
 * by loading extension points and creating new listeners on demand.
 * Subsequent calls will used cached listener data.
 *
 * @return A {@link SingleListenerFacade} of
 *         {@link ResourceChangingCommandListener}s.
 */
public static SingleListenerFacade getListener() {
    synchronized (lock) {
        if (listener == null) {
            final IExtensionRegistry registry = Platform.getExtensionRegistry();
            final IExtensionPoint extensionPoint = registry.getExtensionPoint(EXTENSION_POINT_ID);

            final IConfigurationElement[] elements = extensionPoint.getConfigurationElements();

            final ListenerList list = new StandardListenerList();

            for (int i = 0; i < elements.length; i++) {
                try {
                    list.addListener(elements[i].createExecutableExtension("class")); //$NON-NLS-1$
                } catch (final CoreException e) {
                    log.warn("Could not create " + EXTENSION_POINT_ID + " class", e); //$NON-NLS-1$ //$NON-NLS-2$
                }
            }

            listener = new SingleListenerFacade(ResourceChangingCommandListener.class, list);
        }

        return listener;
    }
}
 

import org.eclipse.core.runtime.IExtensionPoint; //导入方法依赖的package包/类
private void addExtensionDebugLauncherMenus(IMenuManager menu, String url) {
  IExtensionPoint extensionPoint = Platform.getExtensionRegistry().getExtensionPoint(IDebugLaunch.EXTENSION_ID);
  IConfigurationElement[] elements = extensionPoint.getConfigurationElements();
  if (elements == null || elements.length == 0) {
    return;
  }

  for (IConfigurationElement element : elements) {
    try {
      IDebugLaunch debugLaunch = (IDebugLaunch) element.createExecutableExtension("class");
      String label = element.getAttribute("label");
      addExtensionDebugLauncherMenu(menu, label, debugLaunch, url);
    } catch (CoreException e) {
      CorePluginLog.logError("Could not add launcher menu.", e);
    }
  }
}
 

import org.eclipse.core.runtime.IExtensionPoint; //导入方法依赖的package包/类
private void launchExtension(String browserName, String url) throws CoreException {
  if (browserName == null || browserName.isEmpty()) {
    return;
  }

  // remove the id, which sets the default browser id
  browserName = browserName.replace(BROWSER_NAME_EXTENSION, "");

  IExtensionPoint extensionPoint = Platform.getExtensionRegistry().getExtensionPoint(IDebugLaunch.EXTENSION_ID);
  IConfigurationElement[] elements = extensionPoint.getConfigurationElements();
  if (elements == null || elements.length == 0) {
    return;
  }
  for (IConfigurationElement element : elements) {
    IDebugLaunch debugLaunch = (IDebugLaunch) element.createExecutableExtension("class");
    String label = element.getAttribute("label");
    if (debugLaunch != null && label != null && label.equals(browserName)) {
      debugLaunch.launch(project, url, "debug");
    }
  }
}
 

import org.eclipse.core.runtime.IExtensionPoint; //导入方法依赖的package包/类
private static IRefactoringService getRefactoringService() {
    IExtensionPoint extp = Platform.getExtensionRegistry().getExtensionPoint( "org.eclipse.babel.core.refactoringService");
    if (extp != null){
     IConfigurationElement[] elements = extp.getConfigurationElements();
	
     if (elements.length != 0) {
         try {
             return (IRefactoringService) elements[0]
                     .createExecutableExtension("class");
         } catch (CoreException e) {
             e.printStackTrace();
         }
     }
    }
    return new StandardRefactoring();
}
 

import org.eclipse.core.runtime.IExtensionPoint; //导入方法依赖的package包/类
/**
 * Initialize the chain of plan edit approvers.
 */
private void init()
{
	chain = new ArrayList<IPlanEditApprover>();
	
	// construct the chain of approvers
	IExtensionRegistry registry = Platform.getExtensionRegistry();
	IExtensionPoint extensionPoint = registry.getExtensionPoint(APPROVER_EXTENSIONS);
	IConfigurationElement[] extensions = extensionPoint.getConfigurationElements();
	for (IConfigurationElement extension : extensions)
	{
		try {
			IPlanEditApprover approver = (IPlanEditApprover) extension.createExecutableExtension("class");
			chain.add(approver);
		} catch (ThreadDeath td) {
			throw td;
		} catch (Throwable t) {
			trace.error("Error during construction of PlanEditApprover chains: " + t, t);
		}
	}
}
 

import org.eclipse.core.runtime.IExtensionPoint; //导入方法依赖的package包/类
private List<ZoomOption> getZoomOptionsFromExtensionPoint() {
	List<ZoomOption> options = new ArrayList<ZoomOption>();

	IExtensionRegistry registry = Platform.getExtensionRegistry();
	IExtensionPoint extensionPoint = registry.getExtensionPoint("gov.nasa.arc.spife.core.plan.editor.timeline.TimelineZoomOptions");
	if (extensionPoint == null)
		return options;
	for (IConfigurationElement element : extensionPoint.getConfigurationElements()) {
		ZoomOption zoomOption = parseZoomOption(element);
		if (zoomOption == null) {
			continue;
		}
		options.add(zoomOption);

		String defaultString = element.getAttribute("default");
		if (defaultString != null && defaultString.equals("true")) {
			zoomLevel = options.size() - 1;
		}
	}
	return options;
}
 

import org.eclipse.core.runtime.IExtensionPoint; //导入方法依赖的package包/类
private static List<AbstractPlanMergeColumnProvider> getRuntimePlanMergeColumnProviders(EPlan plan) {
	List<AbstractPlanMergeColumnProvider> providers = new ArrayList();
	IExtensionRegistry registry = Platform.getExtensionRegistry();
	IExtensionPoint extensionPoint = registry.getExtensionPoint("gov.nasa.ensemble.common.ClassRegistry");
	for (IConfigurationElement lookupElement : extensionPoint.getConfigurationElements()) {
		String className = lookupElement.getAttribute("class");
		if (IRuntimeMergeColumnProvider.class.getName().equals(className)) {
			for (IConfigurationElement implementationElement : lookupElement.getChildren("implementation")) {
				Class implClass = ExtensionUtils.getClass(implementationElement, implementationElement.getAttribute("class"));
				if (AbstractPlanMergeColumnProvider.class.isAssignableFrom(implClass)) {
					try {
						Constructor constructor = implClass.getConstructor(new Class[] { EPlan.class });
						AbstractPlanMergeColumnProvider provider = (AbstractPlanMergeColumnProvider) constructor.newInstance(new Object[] { plan } );
						providers.add(provider);
					} catch (Exception e) {
						LogUtil.error(e);
					}
				}
			}
		}
	}
	return providers;
}
 

import org.eclipse.core.runtime.IExtensionPoint; //导入方法依赖的package包/类
public static void removePopupMenus(String[] popupIds) {
	
	final java.util.List<IExtension> extensionsToRemove = new java.util.ArrayList<IExtension>();
	
	final IExtensionRegistry registry = Platform.getExtensionRegistry();
	final IExtensionPoint point = registry.getExtensionPoint("org.eclipse.ui.popupMenus");
	final List<String> popups = Arrays.asList(popupIds);
	for (final IConfigurationElement elem : point.getConfigurationElements()) {
		final String id = elem.getAttribute("id");
		if (popups.contains(id))
			extensionsToRemove.add(elem.getDeclaringExtension());
	}
	
	for (IExtension ext : extensionsToRemove) {
		try {
			registry.removeExtension(ext, ReflectionUtils.get(registry, "masterToken"));
		} catch (Throwable t) {
			// ignore
		}
	}
}
 

import org.eclipse.core.runtime.IExtensionPoint; //导入方法依赖的package包/类
protected Collection<FeatureProvider> createFeatureProviders() throws ResourceException {
    IExtensionPoint point = RegistryFactory.getRegistry().getExtensionPoint(PLUGIN_ID, "features");
    Collection<FeatureProvider> providers = new HashSet<FeatureProvider>();
    providers.add(resourceProvider);
    Set<Class<?>> knownFeatures = new HashSet<Class<?>>();
    IConfigurationElement[] configurationElements = point.getConfigurationElements();
    for (int i = 0; i < configurationElements.length; i++) {
        try {
            FeatureProvider currentFeatureProvider = (FeatureProvider) configurationElements[i]
                    .createExecutableExtension("provider");
            if (!currentFeatureProvider.isEnabled())
            	continue;
            Set<Class<?>> provided = new HashSet<Class<?>>(Arrays.asList(currentFeatureProvider
                    .getProvidedFeatureTypes()));
            provided.retainAll(knownFeatures);
            if (!provided.isEmpty())
                throw new ResourceException("Provider " + currentFeatureProvider.getClass().getSimpleName()
                        + " provides redundant features: " + provided);
            knownFeatures.addAll(Arrays.asList(currentFeatureProvider.getProvidedFeatureTypes()));
            providers.add(currentFeatureProvider);
        } catch (CoreException e) {
            throw new ResourceException(e);
        }
    }
    return providers;
}
 

import org.eclipse.core.runtime.IExtensionPoint; //导入方法依赖的package包/类
/**
 * Find Configuration Elements from Extension Registry by Extension ID
 * 
 * @param extensionId
 * @return
 */
public static IConfigurationElement[] findConfigurationElementsByExtension(
		String extensionId )
{
	if ( extensionId == null )
		return null;

	// find Extension Point entry
	IExtensionRegistry registry = Platform.getExtensionRegistry( );
	IExtensionPoint extensionPoint = registry.getExtensionPoint( extensionId );

	if ( extensionPoint == null )
	{
		return null;
	}

	return extensionPoint.getConfigurationElements( );
}
 

import org.eclipse.core.runtime.IExtensionPoint; //导入方法依赖的package包/类
/**
 * Find Configuration Elements from Extension Registry by Extension ID
 * 
 * @param extensionId
 * @return
 */
public static IConfigurationElement[] findConfigurationElementsByExtension(
		String extensionId )
{
	if ( extensionId == null )
		return null;

	// find Extension Point entry
	IExtensionRegistry registry = Platform.getExtensionRegistry( );
	IExtensionPoint extensionPoint = registry
			.getExtensionPoint( extensionId );

	if ( extensionPoint == null )
	{
		return null;
	}

	return extensionPoint.getConfigurationElements( );
}
 

import org.eclipse.core.runtime.IExtensionPoint; //导入方法依赖的package包/类
/**
 * 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;
}
 

import org.eclipse.core.runtime.IExtensionPoint; //导入方法依赖的package包/类
private final TFSResourceChangeStatusReporter[] getStatusReporters() {
    synchronized (statusReporterLock) {
        /*
         * If we do not have any TFSResourceChangeStatusNotifiers, query
         * extension points. This allows UI-aware plugins to provide
         * enhanced reporting and prompting functionality.
         */
        if (statusReporters == null) {
            final List<TFSResourceChangeStatusReporter> reporterList =
                new ArrayList<TFSResourceChangeStatusReporter>();

            /* Add the logging provider (required) */
            reporterList.add(new TFSResourceChangeLoggingStatusReporter());

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

            final IConfigurationElement[] elements = extensionPoint.getConfigurationElements();

            for (int i = 0; i < elements.length; i++) {
                try {
                    final TFSResourceChangeStatusReporter reporter =
                        (TFSResourceChangeStatusReporter) elements[i].createExecutableExtension("class"); //$NON-NLS-1$

                    if (reporter != null) {
                        reporterList.add(reporter);
                    }
                } catch (final CoreException e) {
                    log.warn(MessageFormat.format(
                        "Could not create {0} class", //$NON-NLS-1$
                        STATUS_REPORTERS_EXTENSION_POINT_ID), e);
                }
            }

            statusReporters = reporterList.toArray(new TFSResourceChangeStatusReporter[reporterList.size()]);
        }

        return statusReporters;
    }
}
 

import org.eclipse.core.runtime.IExtensionPoint; //导入方法依赖的package包/类
/**
 * Retrieve the preferred editor ID from the preferences store and verify
 * the editor is still contributed. The internal work item editor ID is
 * returned as a fallback if there are any errors.
 *
 *
 * @return The editor ID of the preferred editor or the internal work item
 *         editor if the preferred editor is no longer contributed.
 */
private static String getPreferredWorkItemEditorID() {

    // Find the preferred work item editor.

    /* @formatter:off
     * 
     * We decided to always use the External Web Browser Editor for work items. 
     * S123 09/05/2017 
     * 
     * final IPreferenceStore preferences = TFSCommonUIClientPlugin.getDefault().getPreferenceStore();
     * final String prefValue = preferences.getString(UIPreferenceConstants.WORK_ITEM_EDITOR_ID);
     * 
     * @formatter:on
     */

    final String prefValue = EXTERNAL_WEB_ACCESS_EDITOR_ID;

    // Check that the preferred work item editor still exists.
    final IExtensionRegistry registry = Platform.getExtensionRegistry();
    final IExtensionPoint extensionPoint = registry.getExtensionPoint(WORK_ITEM_EDITORS_EXTENSION_POINT_ID);
    final IConfigurationElement[] elements = extensionPoint.getConfigurationElements();

    // Check all contributed editors for the preference value.
    for (final IConfigurationElement element : elements) {
        final String id = element.getAttribute("id"); //$NON-NLS-1$
        if (id.equals(prefValue)) {
            // Use the preferred contributed editor.
            return id;
        }
    }

    // Default to embedded Web Access editor
    return EXTERNAL_WEB_ACCESS_EDITOR_ID;
}