| /****************************************************************************** |
| * Copyright (c) 2008 Oracle |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Konstantin Komissarchik - initial implementation and ongoing maintenance |
| ******************************************************************************/ |
| |
| package org.eclipse.wst.common.project.facet.core.events.internal; |
| |
| import static org.eclipse.wst.common.project.facet.core.internal.FacetCorePlugin.PLUGIN_ID; |
| import static org.eclipse.wst.common.project.facet.core.util.internal.PluginUtil.findExtensions; |
| import static org.eclipse.wst.common.project.facet.core.util.internal.PluginUtil.findRequiredAttribute; |
| import static org.eclipse.wst.common.project.facet.core.util.internal.PluginUtil.getTopLevelElements; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.osgi.util.NLS; |
| import org.eclipse.wst.common.project.facet.core.events.IFacetedProjectEvent; |
| import org.eclipse.wst.common.project.facet.core.events.IFacetedProjectListener; |
| import org.eclipse.wst.common.project.facet.core.internal.FacetCorePlugin; |
| import org.eclipse.wst.common.project.facet.core.internal.FacetedProjectFrameworkImpl; |
| import org.eclipse.wst.common.project.facet.core.util.internal.PluginUtil.InvalidExtensionException; |
| |
| /** |
| * Contains the logic for processing the <code>listeners</code> extension point. |
| * |
| * @author <a href="mailto:konstantin.komissarchik@oracle.com">Konstantin Komissarchik</a> |
| */ |
| |
| public final class EventsExtensionPoint |
| { |
| public static final String EXTENSION_POINT_ID = "listeners"; //$NON-NLS-1$ |
| |
| private static final String EL_LISTENER = "listener"; //$NON-NLS-1$ |
| private static final String ATTR_CLASS = "class"; //$NON-NLS-1$ |
| private static final String ATTR_EVENT_TYPES = "eventTypes"; //$NON-NLS-1$ |
| |
| public static void processExtensions( final FacetedProjectFrameworkImpl framework ) |
| { |
| for( IConfigurationElement element |
| : getTopLevelElements( findExtensions( PLUGIN_ID, EXTENSION_POINT_ID ) ) ) |
| { |
| final String pluginId = element.getContributor().getName(); |
| |
| if( element.getName().equals( EL_LISTENER ) ) |
| { |
| try |
| { |
| final String className = findRequiredAttribute( element, ATTR_CLASS ); |
| final String eventTypes = element.getAttribute( ATTR_EVENT_TYPES ); |
| |
| final List<IFacetedProjectEvent.Type> types |
| = new ArrayList<IFacetedProjectEvent.Type>(); |
| |
| if( eventTypes != null ) |
| { |
| for( String segment : eventTypes.split( "," ) ) //$NON-NLS-1$ |
| { |
| segment = segment.trim(); |
| |
| try |
| { |
| final String uppercased = segment.toUpperCase(); |
| types.add( IFacetedProjectEvent.Type.valueOf( uppercased ) ); |
| } |
| catch( IllegalArgumentException e ) |
| { |
| final String msg |
| = Resources.bind( Resources.invalidEventType, segment, |
| pluginId ); |
| |
| FacetCorePlugin.log( msg ); |
| } |
| } |
| } |
| |
| final IFacetedProjectEvent.Type[] typesArray |
| = new IFacetedProjectEvent.Type[ types.size() ]; |
| |
| types.toArray( typesArray ); |
| |
| final IFacetedProjectListener listener |
| = new DelayedClassLoadingListener( pluginId, className ); |
| |
| framework.addListener( listener, typesArray ); |
| } |
| catch( InvalidExtensionException e ) |
| { |
| // Continue. The problem has been reported to the user via the log. |
| } |
| } |
| } |
| } |
| |
| public static final class Resources |
| |
| extends NLS |
| |
| { |
| public static String invalidEventType; |
| |
| static |
| { |
| initializeMessages( EventsExtensionPoint.class.getName(), Resources.class ); |
| } |
| } |
| |
| } |