| /******************************************************************************* |
| * Copyright (c) 2008 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: |
| * Kentarou FUKUDA - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.actf.model.dom.dombycom.impl.object; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.actf.model.dom.dombycom.IObjectElementFactory; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.IExtension; |
| import org.eclipse.core.runtime.Platform; |
| |
| @SuppressWarnings("nls") |
| public class ObjectElementFactoryExtension { |
| private static final String EXTENSION_NAME = "elementFactory"; |
| |
| private static final String OBJECT_ELEMENT_FACTORY = "objectElementFactory"; |
| |
| private static final String ATTR_IMPL = "implementations"; |
| |
| private static ObjectElementFactoryExtension[] extensions; |
| |
| private static IObjectElementFactory[] factories = null; |
| |
| public static IObjectElementFactory[] getObjectElementFactories() { |
| if (factories != null) { |
| return factories; |
| } |
| |
| ObjectElementFactoryExtension[] tmpExtensions = getExtensions(); |
| ArrayList<IObjectElementFactory> tmpList = new ArrayList<IObjectElementFactory>(); |
| if (tmpExtensions != null) { |
| for (int i = 0; i < tmpExtensions.length; i++) { |
| IObjectElementFactory tmpFactory = tmpExtensions[i].getFactory(); |
| if (tmpFactory != null) { |
| tmpList.add(tmpFactory); |
| } |
| } |
| } |
| factories = new IObjectElementFactory[tmpList.size()]; |
| tmpList.toArray(factories); |
| return factories; |
| } |
| |
| private static ObjectElementFactoryExtension[] getExtensions() { |
| if (extensions != null) |
| return extensions; |
| |
| IExtension[] tmpExtensions = Platform.getExtensionRegistry() |
| .getExtensionPoint("org.eclipse.actf.model.dom.dombycom", EXTENSION_NAME) |
| .getExtensions(); |
| |
| List<ObjectElementFactoryExtension> l = new ArrayList<ObjectElementFactoryExtension>(); |
| for (int i = 0; i < tmpExtensions.length; i++) { |
| IConfigurationElement[] configElements = tmpExtensions[i] |
| .getConfigurationElements(); |
| for (int j = 0; j < configElements.length; j++) { |
| ObjectElementFactoryExtension ex = parseExtension(configElements[j]); |
| if (ex != null) { |
| l.add(ex); |
| } |
| } |
| } |
| extensions = l.toArray(new ObjectElementFactoryExtension[l.size()]); |
| return extensions; |
| } |
| |
| private static ObjectElementFactoryExtension parseExtension( |
| IConfigurationElement configElement) { |
| if (!configElement.getName().equals(OBJECT_ELEMENT_FACTORY)) { |
| return null; |
| } |
| try { |
| return new ObjectElementFactoryExtension(configElement); |
| } catch (Exception e) { |
| } |
| return null; |
| } |
| |
| private IObjectElementFactory factory = null; |
| |
| private ObjectElementFactoryExtension(IConfigurationElement configElement) { |
| try { |
| this.factory = (IObjectElementFactory) configElement |
| .createExecutableExtension(ATTR_IMPL); |
| } catch (Exception e) { |
| } |
| |
| } |
| |
| private IObjectElementFactory getFactory() { |
| return this.factory; |
| } |
| |
| |
| } |