| /******************************************************************************* |
| * Copyright (c) 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.xml.ui.internal.catalog; |
| |
| import java.util.Collection; |
| import java.util.HashMap; |
| |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.IExtensionPoint; |
| import org.eclipse.core.runtime.IExtensionRegistry; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.wst.xml.ui.internal.XMLUIPlugin; |
| |
| public class CatalogFileTypeRegistryReader { |
| private static CatalogFileTypeRegistryReader _instance; |
| |
| static final String ATT_DESCRIPTION = "description"; //$NON-NLS-1$ |
| |
| static final String ATT_EXTENSIONS = "extensions"; //$NON-NLS-1$ |
| |
| static final String ATT_ICON = "icon"; //$NON-NLS-1$ |
| |
| static final String ATT_ID = "id"; //$NON-NLS-1$ |
| |
| static final String EXTENSION_POINT_ID = "catalogFileType"; //$NON-NLS-1$ |
| |
| static final String TAG_NAME = "fileType"; //$NON-NLS-1$ |
| |
| private static CatalogFileTypeRegistryReader getInstance() { |
| if (_instance == null) |
| _instance = new CatalogFileTypeRegistryReader(); |
| return _instance; |
| } |
| |
| public static Collection getXMLCatalogFileTypes() { |
| return getInstance().hashMap.values(); |
| } |
| |
| private HashMap hashMap; |
| |
| public CatalogFileTypeRegistryReader() { |
| this.hashMap = new HashMap(); |
| readRegistry(); |
| } |
| |
| private void readElement(IConfigurationElement element) { |
| if (element.getName().equals(TAG_NAME)) { |
| String id = element.getAttribute(ATT_ID); |
| if (id != null) { |
| XMLCatalogFileType fileType = (XMLCatalogFileType) hashMap.get(id); |
| if (fileType == null) { |
| fileType = new XMLCatalogFileType(); |
| hashMap.put(id, fileType); |
| } |
| |
| if (fileType.description == null) { |
| String description = element.getAttribute(ATT_DESCRIPTION); |
| fileType.description = description; |
| } |
| |
| fileType.addExtensions(element.getAttribute(ATT_EXTENSIONS)); |
| } |
| } |
| } |
| |
| private void readRegistry() { |
| readRegistry(EXTENSION_POINT_ID); |
| } |
| |
| private void readRegistry(String extensionPointId) { |
| IExtensionRegistry pluginRegistry = Platform.getExtensionRegistry(); |
| IExtensionPoint point = pluginRegistry.getExtensionPoint(XMLUIPlugin.ID, extensionPointId); |
| if (point != null) { |
| IConfigurationElement[] elements = point.getConfigurationElements(); |
| for (int i = 0; i < elements.length; i++) { |
| readElement(elements[i]); |
| } |
| } |
| } |
| } |