| /******************************************************************************* |
| * 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 |
| *******************************************************************************/ |
| /* |
| * Created on Jun 13, 2004 |
| */ |
| package org.eclipse.jst.j2ee.internal.web.jfaces.extension; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.jem.util.RegistryReader; |
| import org.eclipse.jst.j2ee.internal.web.plugin.WebPlugin; |
| |
| /** |
| * @author vijayb |
| * |
| * This class loads all the extensions that define the correct URL string for the Java Server Faces |
| * file |
| * |
| */ |
| public class FileURLExtensionReader extends RegistryReader { |
| static FileURLExtensionReader instance = null; |
| protected List fileURLExtensions; |
| |
| /** |
| * @param registry |
| * @param pluginID |
| * @param extensionPoint |
| */ |
| public FileURLExtensionReader() { |
| super(WebPlugin.PLUGIN_ID, "fileURL"); //$NON-NLS-1$ |
| } |
| |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.wst.common.frameworks.internal.RegistryReader#readElement(org.eclipse.core.runtime.IConfigurationElement) |
| */ |
| public boolean readElement(IConfigurationElement element) { |
| if (FileURLExtension.FILE_URL_EXTENSION.equals(element.getName())) { |
| addExtension(element); |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Sets the extension point. |
| * |
| * @param extensions |
| * The extensions to set |
| */ |
| protected void addExtension(IConfigurationElement newExtension) { |
| getFileURLExtensions().add(new FileURLExtension(newExtension)); |
| } |
| |
| /** |
| * Sets the extension point. |
| * |
| * @param extensions |
| * The extensions to set |
| */ |
| protected void addExtensionPoint(FileURLExtensionReader newExtension) { |
| if (this.fileURLExtensions == null) |
| this.fileURLExtensions = new ArrayList(); |
| this.fileURLExtensions.add(newExtension); |
| } |
| |
| /** |
| * @return the appropriate handler for the project based on priorities of those which are |
| * available and enabled |
| */ |
| public FileURL getFilesURL() { |
| FileURLExtension fileURLExt; |
| for (Iterator fileURLExtItr = getFileURLExtensions().iterator(); fileURLExtItr.hasNext();) { |
| fileURLExt = (FileURLExtension) fileURLExtItr.next(); |
| return fileURLExt.getInstance(); |
| } |
| return null; |
| } |
| |
| /** |
| * Gets the instance. |
| * |
| * @return Returns a FileURLExtensionReader |
| */ |
| public static FileURLExtensionReader getInstance() { |
| if (instance == null) { |
| instance = new FileURLExtensionReader(); |
| instance.readRegistry(); |
| } |
| return instance; |
| } |
| |
| /** |
| * @return Returns the handlerExtensions. |
| */ |
| protected List getFileURLExtensions() { |
| if (this.fileURLExtensions == null) |
| this.fileURLExtensions = new ArrayList(); |
| return this.fileURLExtensions; |
| } |
| |
| |
| } |