jsf/plugins/org.eclipse.jst.jsf.common/src/org/eclipse/jst/jsf/common/JSFCommonPlugin.java - jsf/webtools.jsf - Git at Google

 package org.eclipse.jst.jsf.common;

 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;

 import org.eclipse.core.runtime.IConfigurationElement;
 import org.eclipse.core.runtime.IExtension;
 import org.eclipse.core.runtime.IExtensionPoint;
 import org.eclipse.core.runtime.ILog;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Platform;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.emf.common.EMFPlugin;
 import org.eclipse.emf.common.util.ResourceLocator;
 import org.eclipse.jst.jsf.context.symbol.internal.provisional.source.AbstractContextSymbolFactory;
 import org.eclipse.jst.jsf.context.symbol.internal.provisional.source.ISymbolSourceProvider;
 import org.eclipse.jst.jsf.context.symbol.internal.provisional.source.ISymbolSourceProviderFactory;
 import org.osgi.framework.Bundle;

 /**
  * This is the central singleton for the My edit plugin.
  * <!-- begin-user-doc -->
  * <!-- end-user-doc -->
  * @generated
  */
 public final class JSFCommonPlugin extends EMFPlugin {

 	/**
 	 * Plugin id
 	 */
 	public static final String PLUGIN_ID = "org.eclipse.jst.jsf.common";

 	/**
 	 * <!-- begin-user-doc -->
      * <!-- end-user-doc -->
 	 * @generated
 	 */
     public static final String copyright = "Copyright 2006 Oracle";

     private static List  registeredSymbolSourceProviders;
     private static Map   registeredSymbolFactories;

 	/**
 	 * Keep track of the singleton.
 	 * <!-- begin-user-doc -->
      * <!-- end-user-doc -->
 	 * @generated
 	 */
     public static final JSFCommonPlugin INSTANCE = new JSFCommonPlugin();

 	/**
 	 * Keep track of the singleton.
 	 * <!-- begin-user-doc -->
      * <!-- end-user-doc -->
 	 * @generated
 	 */
     private static Implementation plugin;

 	/**
 	 * Create the instance.
 	 * <!-- begin-user-doc -->
      * <!-- end-user-doc -->
 	 * @generated
 	 */
     public JSFCommonPlugin() {
 		super
 		  (new ResourceLocator [] {
 		   });
 	}

 	/**
 	 * Returns the singleton instance of the Eclipse plugin.
 	 * <!-- begin-user-doc -->
      * <!-- end-user-doc -->
 	 * @return the singleton instance.
 	 * @generated
 	 */
     public ResourceLocator getPluginResourceLocator() {
 		return plugin;
 	}

 	/**
 	 * Returns the singleton instance of the Eclipse plugin.
 	 * <!-- begin-user-doc -->
      * <!-- end-user-doc -->
 	 * @return the singleton instance.
 	 * @generated
 	 */
     public static Implementation getPlugin() {
 		return plugin;
 	}

     /**
      * @param e
      * @param msg
      */
     public static void log(final Exception e, final String msg) {
         final ILog log = getPlugin().getLog();

         log.log(new Status(IStatus.ERROR, PLUGIN_ID, IStatus.OK, msg, e));
     }

     /**
      * Logs using the default ILog implementation provided by getLog().
      *
      * @param severity Severity (IStatus constant) of log entry
      * @param message Human-readable message describing log entry
      * @param ex Throwable instance (can be null)
      */
     public static void log(int severity, String message, Throwable ex) {
         getPlugin().getLog().log(new Status(severity, PLUGIN_ID, IStatus.OK, message, ex));
     }

     /**
      * Logs using the default ILog implementation provided by getLog().
      *
      * @param severity Severity (IStatus constant) of log entry
      * @param message Human-readable message describing log entry
      */
     public static void log(int severity, String message) {
         log(severity, message, null);
     }
     /**
      * @return all registered symbol source providers
      */
     public static ISymbolSourceProvider[]  getSymbolSourceProvider()
     {
         return (ISymbolSourceProvider[])
             registeredSymbolSourceProviders.toArray(new ISymbolSourceProvider[0]);
     }

     /**
      * @return all registered symbol source providers
      */
     public synchronized static List getSymbolSourceProviders()
     {
         if (registeredSymbolSourceProviders == null)
         {
             registerProviders();
             if (registeredSymbolSourceProviders == null)
             {
                 throw new AssertionError("registerProviders failed");
             }
         }
         return Collections.unmodifiableList(registeredSymbolSourceProviders);
     }

     private static void registerProviders()
     {
         final IExtensionPoint point = Platform.getExtensionRegistry().getExtensionPoint(plugin.getBundle().getSymbolicName(), Implementation.SYMBOL_SOURCE_EXT_ID);
         final IExtension[] extensions = point.getExtensions();
         registeredSymbolSourceProviders = new ArrayList(extensions.length);

         for (int i = 0; i < extensions.length; i++)
         {
             final IExtension extension = extensions[i];
             final IConfigurationElement[] elements =
                 extension.getConfigurationElements();
             final String bundleId = extension.getContributor().getName();

             for (int j = 0; j < elements.length; j++)
             {
                 final IConfigurationElement element = elements[j];
                 if ("symbolSourceId".equals(element.getName())
                         && element.getAttribute("factory") != null)
                 {
                     String factoryClassName = element.getAttribute("factory");
                     final Bundle bundle = Platform.getBundle(bundleId);

                     if (bundle != null)
                     {
                         try
                         {
                             Class factoryClass = bundle.loadClass(factoryClassName);

                             ISymbolSourceProviderFactory factory =
                                 (ISymbolSourceProviderFactory) factoryClass.newInstance();

                             registeredSymbolSourceProviders.add(factory);
                         }
                         catch (Exception e)
                         {
                             plugin.log(new Status(IStatus.ERROR, plugin.getBundle().getSymbolicName(), 0, "Error loading symbol provider extension point",e));
                         }
                     }
                 }
             }
         }
     }

     /**
      * @return the list of registed symbol factories
      */
     public synchronized static Map getSymbolFactories()
     {
         if (registeredSymbolFactories == null)
         {
             registerSymbolFactories();
             if (registeredSymbolFactories == null)
             {
                 throw new AssertionError("registerProviders failed");
             }
         }
         return Collections.unmodifiableMap(registeredSymbolFactories);
     }

     private static void registerSymbolFactories()
     {
         final IExtensionPoint point = Platform.getExtensionRegistry().getExtensionPoint(plugin.getBundle().getSymbolicName(), Implementation.SYMBOL_FACTORY_EXT_ID);
         final IExtension[] extensions = point.getExtensions();
         registeredSymbolFactories = new HashMap(extensions.length);

         for (int i = 0; i < extensions.length; i++)
         {
             final IExtension extension = extensions[i];
             final IConfigurationElement[] elements =
                 extension.getConfigurationElements();
             final String bundleId = extension.getContributor().getName();

             for (int j = 0; j < elements.length; j++)
             {
                 final IConfigurationElement element = elements[j];
                 if ("contextSymbolFactory".equals(element.getName())
                         && element.getAttribute("factory") != null)
                 {
                     final String factoryClassName = element.getAttribute("factory");
                     final String factoryId = element.getAttribute("factoryId");
                     final Bundle bundle = Platform.getBundle(bundleId);

                     if (bundle != null)
                     {
                         try
                         {
                             Class factoryClass = bundle.loadClass(factoryClassName);

                             AbstractContextSymbolFactory factory =
                                 (AbstractContextSymbolFactory) factoryClass.newInstance();

                             registeredSymbolFactories.put(factoryId, factory);
                         }
                         catch (Exception e)
                         {
                             plugin.log(new Status(IStatus.ERROR, plugin.getBundle().getSymbolicName(), 0, "Error loading symbol factory extension point",e));
                         }
                     }
                 }
             }
         }
     }

     /**
      * Logs an exception in this plugin to the error log
      *
      * @param t
      */
     public static void log(Throwable t)
     {
         ILog log = getPlugin().getLog();
         IStatus status = new Status(IStatus.ERROR, getPlugin().getSymbolicName(), 0,  "Caught exception", t);
         log.log(status);
     }

 	/**
 	 * The actual implementation of the Eclipse <b>Plugin</b>.
 	 * <!-- begin-user-doc -->
      * <!-- end-user-doc -->
 	 * @generated
 	 */
     public static class Implementation extends EclipsePlugin
     {
         /**
          * Name of the symbolSourceProvider ext point
          */
         public static final  String   SYMBOL_SOURCE_EXT_ID = "symbolSourceProvider";
         /**
          * Local identifier for the symbol factory extension point
          */
         public static final  String   SYMBOL_FACTORY_EXT_ID = "contextSymbolFactory";
 		/**
 		 * Creates an instance.
 		 * <!-- begin-user-doc -->
          * <!-- end-user-doc -->
 		 * @generated
 		 */
         public Implementation() {
 			super();

 			// Remember the static instance.
 			//
 			plugin = this;
 		}
 	}


 	/**
 	 * Utility method returning class from class name using classloader from specified bundle
 	 * @param className
 	 * @param bundleId
 	 * @return Class
 	 */
 	public static Class loadClass(String className, String bundleId) {
 		Class aClass = null;
 		try {
 			if (bundleId != null){
 				Bundle bundle = Platform.getBundle(bundleId);
 				if (bundle != null){
 					aClass = bundle.loadClass(className);
 				}
 			}
 		} catch (ClassNotFoundException e) {
 			// TODO log
 			e.printStackTrace();
 		}
 		return aClass;
 	}
 }
	package org.eclipse.jst.jsf.common;

	import java.util.ArrayList;
	import java.util.Collections;
	import java.util.HashMap;
	import java.util.List;
	import java.util.Map;

	import org.eclipse.core.runtime.IConfigurationElement;
	import org.eclipse.core.runtime.IExtension;
	import org.eclipse.core.runtime.IExtensionPoint;
	import org.eclipse.core.runtime.ILog;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Platform;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.emf.common.EMFPlugin;
	import org.eclipse.emf.common.util.ResourceLocator;
	import org.eclipse.jst.jsf.context.symbol.internal.provisional.source.AbstractContextSymbolFactory;
	import org.eclipse.jst.jsf.context.symbol.internal.provisional.source.ISymbolSourceProvider;
	import org.eclipse.jst.jsf.context.symbol.internal.provisional.source.ISymbolSourceProviderFactory;
	import org.osgi.framework.Bundle;

	/**
	* This is the central singleton for the My edit plugin.
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @generated
	*/
	public final class JSFCommonPlugin extends EMFPlugin {

	/**
	* Plugin id
	*/
	public static final String PLUGIN_ID = "org.eclipse.jst.jsf.common";

	/**
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @generated
	*/
	public static final String copyright = "Copyright 2006 Oracle";

	private static List registeredSymbolSourceProviders;
	private static Map registeredSymbolFactories;

	/**
	* Keep track of the singleton.
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @generated
	*/
	public static final JSFCommonPlugin INSTANCE = new JSFCommonPlugin();

	/**
	* Keep track of the singleton.
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @generated
	*/
	private static Implementation plugin;

	/**
	* Create the instance.
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @generated
	*/
	public JSFCommonPlugin() {
	super
	(new ResourceLocator [] {
	});
	}

	/**
	* Returns the singleton instance of the Eclipse plugin.
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @return the singleton instance.
	* @generated
	*/
	public ResourceLocator getPluginResourceLocator() {
	return plugin;
	}

	/**
	* Returns the singleton instance of the Eclipse plugin.
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @return the singleton instance.
	* @generated
	*/
	public static Implementation getPlugin() {
	return plugin;
	}

	/**
	* @param e
	* @param msg
	*/
	public static void log(final Exception e, final String msg) {
	final ILog log = getPlugin().getLog();

	log.log(new Status(IStatus.ERROR, PLUGIN_ID, IStatus.OK, msg, e));
	}

	/**
	* Logs using the default ILog implementation provided by getLog().
	*
	* @param severity Severity (IStatus constant) of log entry
	* @param message Human-readable message describing log entry
	* @param ex Throwable instance (can be null)
	*/
	public static void log(int severity, String message, Throwable ex) {
	getPlugin().getLog().log(new Status(severity, PLUGIN_ID, IStatus.OK, message, ex));
	}

	/**
	* Logs using the default ILog implementation provided by getLog().
	*
	* @param severity Severity (IStatus constant) of log entry
	* @param message Human-readable message describing log entry
	*/
	public static void log(int severity, String message) {
	log(severity, message, null);
	}
	/**
	* @return all registered symbol source providers
	*/
	public static ISymbolSourceProvider[] getSymbolSourceProvider()
	{
	return (ISymbolSourceProvider[])
	registeredSymbolSourceProviders.toArray(new ISymbolSourceProvider[0]);
	}

	/**
	* @return all registered symbol source providers
	*/
	public synchronized static List getSymbolSourceProviders()
	{
	if (registeredSymbolSourceProviders == null)
	{
	registerProviders();
	if (registeredSymbolSourceProviders == null)
	{
	throw new AssertionError("registerProviders failed");
	}
	}
	return Collections.unmodifiableList(registeredSymbolSourceProviders);
	}

	private static void registerProviders()
	{
	final IExtensionPoint point = Platform.getExtensionRegistry().getExtensionPoint(plugin.getBundle().getSymbolicName(), Implementation.SYMBOL_SOURCE_EXT_ID);
	final IExtension[] extensions = point.getExtensions();
	registeredSymbolSourceProviders = new ArrayList(extensions.length);

	for (int i = 0; i < extensions.length; i++)
	{
	final IExtension extension = extensions[i];
	final IConfigurationElement[] elements =
	extension.getConfigurationElements();
	final String bundleId = extension.getContributor().getName();

	for (int j = 0; j < elements.length; j++)
	{
	final IConfigurationElement element = elements[j];
	if ("symbolSourceId".equals(element.getName())
	&& element.getAttribute("factory") != null)
	{
	String factoryClassName = element.getAttribute("factory");
	final Bundle bundle = Platform.getBundle(bundleId);

	if (bundle != null)
	{
	try
	{
	Class factoryClass = bundle.loadClass(factoryClassName);

	ISymbolSourceProviderFactory factory =
	(ISymbolSourceProviderFactory) factoryClass.newInstance();

	registeredSymbolSourceProviders.add(factory);
	}
	catch (Exception e)
	{
	plugin.log(new Status(IStatus.ERROR, plugin.getBundle().getSymbolicName(), 0, "Error loading symbol provider extension point",e));
	}
	}
	}
	}
	}
	}

	/**
	* @return the list of registed symbol factories
	*/
	public synchronized static Map getSymbolFactories()
	{
	if (registeredSymbolFactories == null)
	{
	registerSymbolFactories();
	if (registeredSymbolFactories == null)
	{
	throw new AssertionError("registerProviders failed");
	}
	}
	return Collections.unmodifiableMap(registeredSymbolFactories);
	}

	private static void registerSymbolFactories()
	{
	final IExtensionPoint point = Platform.getExtensionRegistry().getExtensionPoint(plugin.getBundle().getSymbolicName(), Implementation.SYMBOL_FACTORY_EXT_ID);
	final IExtension[] extensions = point.getExtensions();
	registeredSymbolFactories = new HashMap(extensions.length);

	for (int i = 0; i < extensions.length; i++)
	{
	final IExtension extension = extensions[i];
	final IConfigurationElement[] elements =
	extension.getConfigurationElements();
	final String bundleId = extension.getContributor().getName();

	for (int j = 0; j < elements.length; j++)
	{
	final IConfigurationElement element = elements[j];
	if ("contextSymbolFactory".equals(element.getName())
	&& element.getAttribute("factory") != null)
	{
	final String factoryClassName = element.getAttribute("factory");
	final String factoryId = element.getAttribute("factoryId");
	final Bundle bundle = Platform.getBundle(bundleId);

	if (bundle != null)
	{
	try
	{
	Class factoryClass = bundle.loadClass(factoryClassName);

	AbstractContextSymbolFactory factory =
	(AbstractContextSymbolFactory) factoryClass.newInstance();

	registeredSymbolFactories.put(factoryId, factory);
	}
	catch (Exception e)
	{
	plugin.log(new Status(IStatus.ERROR, plugin.getBundle().getSymbolicName(), 0, "Error loading symbol factory extension point",e));
	}
	}
	}
	}
	}
	}

	/**
	* Logs an exception in this plugin to the error log
	*
	* @param t
	*/
	public static void log(Throwable t)
	{
	ILog log = getPlugin().getLog();
	IStatus status = new Status(IStatus.ERROR, getPlugin().getSymbolicName(), 0, "Caught exception", t);
	log.log(status);
	}

	/**
	* The actual implementation of the Eclipse <b>Plugin</b>.
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @generated
	*/
	public static class Implementation extends EclipsePlugin
	{
	/**
	* Name of the symbolSourceProvider ext point
	*/
	public static final String SYMBOL_SOURCE_EXT_ID = "symbolSourceProvider";
	/**
	* Local identifier for the symbol factory extension point
	*/
	public static final String SYMBOL_FACTORY_EXT_ID = "contextSymbolFactory";
	/**
	* Creates an instance.
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @generated
	*/
	public Implementation() {
	super();

	// Remember the static instance.
	//
	plugin = this;
	}
	}


	/**
	* Utility method returning class from class name using classloader from specified bundle
	* @param className
	* @param bundleId
	* @return Class
	*/
	public static Class loadClass(String className, String bundleId) {
	Class aClass = null;
	try {
	if (bundleId != null){
	Bundle bundle = Platform.getBundle(bundleId);
	if (bundle != null){
	aClass = bundle.loadClass(className);
	}
	}
	} catch (ClassNotFoundException e) {
	// TODO log
	e.printStackTrace();
	}
	return aClass;
	}
	}