| /******************************************************************************* |
| * Copyright (c) 2003, 2005 IBM Corporation and others. |
| * 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.common.internal.emfworkbench.edit; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.jem.util.RegistryReader; |
| import org.eclipse.wst.common.internal.emfworkbench.integration.EMFWorkbenchEditPlugin; |
| |
| |
| /** |
| * @author mdelder |
| */ |
| class EditModelExtensionRegistry extends RegistryReader { |
| |
| private static EditModelExtensionRegistry INSTANCE = null; |
| |
| public static final String EDIT_MODEL_EXT_ELEMENT = "editModelExtension"; //$NON-NLS-1$ |
| public static final String EDIT_MODEL_ID_ATTR = "editModelID"; //$NON-NLS-1$ |
| public static final String GROUP_ID_ATTR = "functionGroupID"; //$NON-NLS-1$ |
| |
| |
| private Map extensions = null; |
| |
| protected EditModelExtensionRegistry() { |
| super(EMFWorkbenchEditPlugin.ID, EMFWorkbenchEditPlugin.EDIT_MODEL_EXTENSION_REGISTRY_EXTENSION_POINT); |
| } |
| |
| public static EditModelExtensionRegistry getInstance() { |
| if (INSTANCE == null) { |
| INSTANCE = new EditModelExtensionRegistry(); |
| INSTANCE.readRegistry(); |
| } |
| return INSTANCE; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.wst.common.frameworks.internal.RegistryReader#readElement(org.eclipse.core.runtime.IConfigurationElement) |
| */ |
| @Override |
| public boolean readElement(IConfigurationElement element) { |
| |
| boolean result = false; |
| Collection extensionsByID = null; |
| EditModelExtension editModelExtension = null; |
| if (element.getName().equals(EDIT_MODEL_EXT_ELEMENT)) { |
| editModelExtension = new EditModelExtension(element); |
| extensionsByID = (Collection) getExtensions().get(editModelExtension.getEditModelID()); |
| if (extensionsByID == null) { |
| extensionsByID = new ArrayList(); |
| getExtensions().put(editModelExtension.getEditModelID(), extensionsByID); |
| } |
| extensionsByID.add(editModelExtension); |
| result = true; |
| } |
| return result; |
| } |
| |
| protected Map getExtensions() { |
| if (extensions == null) |
| extensions = new HashMap(); |
| return extensions; |
| } |
| |
| /** |
| * @return |
| */ |
| public Collection getEditModelResources(Object editModelID) { |
| //TODO - Cache the resources |
| Collection editModelResources = new ArrayList(); |
| Collection editModelExtensions = (Collection) getExtensions().get(editModelID); |
| |
| if (editModelExtensions == null || editModelExtensions.size() == 0) |
| return Collections.EMPTY_LIST; |
| Iterator itr = editModelExtensions.iterator(); |
| while (itr.hasNext()) { |
| EditModelExtension ext = (EditModelExtension) itr.next(); |
| editModelResources.addAll(ext.getResources()); |
| } |
| return (!editModelExtensions.isEmpty()) ? editModelResources : Collections.EMPTY_LIST; |
| } |
| |
| } |