| /****************************************************************************** |
| * 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.internal; |
| |
| import static org.eclipse.wst.common.project.facet.core.internal.FacetCorePlugin.PLUGIN_ID; |
| import static org.eclipse.wst.common.project.facet.core.internal.FacetedProjectFrameworkImpl.reportMissingFacet; |
| 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.findOptionalElement; |
| 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.getElementValue; |
| import static org.eclipse.wst.common.project.facet.core.util.internal.PluginUtil.getTopLevelElements; |
| |
| import java.util.Set; |
| |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.osgi.util.NLS; |
| import org.eclipse.wst.common.project.facet.core.IFacetedProjectTemplate; |
| import org.eclipse.wst.common.project.facet.core.ProjectFacetsManager; |
| import org.eclipse.wst.common.project.facet.core.util.internal.IndexedSet; |
| import org.eclipse.wst.common.project.facet.core.util.internal.PluginUtil.InvalidExtensionException; |
| |
| /** |
| * Contains the logic for processing the <code>template</code> element of the <code>facets</code> |
| * extension point. |
| * |
| * @author <a href="mailto:konstantin.komissarchik@oracle.com">Konstantin Komissarchik</a> |
| */ |
| |
| public final class FacetedProjectTemplatesExtensionPoint |
| { |
| public static final String EXTENSION_POINT_ID = "facets"; //$NON-NLS-1$ |
| |
| private static final String ATTR_FACET = "facet"; //$NON-NLS-1$ |
| private static final String ATTR_ID = "id"; //$NON-NLS-1$ |
| private static final String EL_FIXED = "fixed"; //$NON-NLS-1$ |
| private static final String EL_LABEL = "label"; //$NON-NLS-1$ |
| private static final String EL_PRESET = "preset"; //$NON-NLS-1$ |
| private static final String EL_TEMPLATE = "template"; //$NON-NLS-1$ |
| |
| private static IndexedSet<String,IFacetedProjectTemplate> templates = null; |
| |
| public static Set<IFacetedProjectTemplate> getTemplates() |
| { |
| readExtensions(); |
| return templates.getUnmodifiable(); |
| } |
| |
| public static IFacetedProjectTemplate getTemplate( final String id ) |
| { |
| readExtensions(); |
| return templates.get( id ); |
| } |
| |
| private static synchronized void readExtensions() |
| { |
| if( templates != null ) |
| { |
| return; |
| } |
| |
| templates = new IndexedSet<String,IFacetedProjectTemplate>(); |
| |
| for( IConfigurationElement element |
| : getTopLevelElements( findExtensions( PLUGIN_ID, EXTENSION_POINT_ID ) ) ) |
| { |
| if( element.getName().equals( EL_TEMPLATE ) ) |
| { |
| try |
| { |
| readTemplate( element ); |
| } |
| catch( InvalidExtensionException e ) |
| { |
| // Continue. The problem has been reported to the user via the log. |
| } |
| } |
| } |
| } |
| |
| private static void readTemplate( final IConfigurationElement config ) |
| |
| throws InvalidExtensionException |
| |
| { |
| final String pluginId = config.getContributor().getName(); |
| |
| final FacetedProjectTemplate template = new FacetedProjectTemplate(); |
| template.setId( findRequiredAttribute( config, ATTR_ID ) ); |
| |
| final IConfigurationElement elLabel = findOptionalElement( config, EL_LABEL ); |
| template.setLabel( getElementValue( elLabel, template.getId() ) ); |
| |
| final IConfigurationElement[] children = config.getChildren(); |
| |
| for( int i = 0; i < children.length; i++ ) |
| { |
| final IConfigurationElement child = children[ i ]; |
| final String childName = child.getName(); |
| |
| if( childName.equals( EL_FIXED ) ) |
| { |
| final String fid = findRequiredAttribute( child, ATTR_FACET ); |
| |
| if( ! ProjectFacetsManager.isProjectFacetDefined( fid ) ) |
| { |
| reportMissingFacet( fid, pluginId ); |
| return; |
| } |
| |
| template.addFixedProjectFacet( ProjectFacetsManager.getProjectFacet( fid ) ); |
| } |
| else if( childName.equals( EL_PRESET ) ) |
| { |
| final String pid = findRequiredAttribute( child, ATTR_ID ); |
| |
| if( ! ProjectFacetsManager.isPresetDefined( pid ) ) |
| { |
| final String msg |
| = Resources.bind( Resources.presetNotDefined, pid, pluginId ); |
| |
| FacetCorePlugin.log( msg ); |
| |
| return; |
| } |
| |
| template.setInitialPreset( ProjectFacetsManager.getPreset( pid ) ); |
| } |
| } |
| |
| templates.add( template.getId(), template ); |
| } |
| |
| private static final class Resources |
| |
| extends NLS |
| |
| { |
| public static String presetNotDefined; |
| |
| static |
| { |
| initializeMessages( FacetedProjectTemplatesExtensionPoint.class.getName(), |
| Resources.class ); |
| } |
| } |
| |
| } |