| /******************************************************************************* |
| * Copyright (c) 2001, 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 |
| * Jens Lukowski/Innoopract - initial renaming/restructuring |
| * |
| *******************************************************************************/ |
| package org.eclipse.wst.sse.ui.internal.provisional.registry; |
| |
| 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.sse.ui.internal.Logger; |
| |
| |
| /** |
| * This class just converts what's in the plugins registry into a form more |
| * easily useable by others, the ContentTypeRegistry. |
| */ |
| class AdapterFactoryRegistryReader { |
| protected final static String ATT_CLASS = "class"; //$NON-NLS-1$ |
| |
| protected final static String ATT_ID = "id"; //$NON-NLS-1$ |
| |
| private static boolean DEBUG = false; |
| protected final static String EXTENSION_POINT_ID = "adapterFactoryDescription"; //$NON-NLS-1$ |
| // |
| protected final static String PLUGIN_ID = "org.eclipse.wst.sse.ui"; //$NON-NLS-1$ |
| protected final static String TAG_CONTENT_TYPE = "contentType"; //$NON-NLS-1$ |
| |
| protected final static String TAG_NAME = "adapterFactoryDescription"; //$NON-NLS-1$ |
| |
| public final static String UNKNOWN_CONTENT_TYPE = "unknown"; //$NON-NLS-1$ |
| |
| /** |
| * adds configuration element to contentTypeId map [contentTypeId -> |
| * element2providerMap] | V [element -> provider] |
| * |
| * NOTE: this doesn't create the provider yet, that must be done on demand |
| * and stored in the appropriate element2provider |
| * |
| * @param map |
| * @param contentTypeId |
| * @param element |
| */ |
| private static void addElementForContentType(HashMap map, String contentTypeId, IConfigurationElement element) { |
| |
| Object o = map.get(contentTypeId); |
| if (o == null) { |
| HashMap element2provider = new HashMap(); |
| // don't create the executable extension yet |
| element2provider.put(element, null); |
| map.put(contentTypeId, element2provider); |
| |
| if (DEBUG) |
| System.out.println("added " + element.getAttribute(ATT_CLASS) + ", but didn't create exec extension"); //$NON-NLS-1$ //$NON-NLS-2$ |
| } else { |
| // add element to unknown list (not executable ext yet...) |
| HashMap element2provider = (HashMap) o; |
| element2provider.put(element, null); |
| |
| if (DEBUG) |
| System.out.println("added " + element.getAttribute(ATT_CLASS) + " to unknown list, but didn't create exec extension"); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| } |
| |
| /** |
| * the map passed in: [contentTypeId -> element2providerMap] | V [element -> |
| * provider] |
| * |
| * @param element |
| * @param map |
| * @return |
| */ |
| protected static AdapterFactoryProvider readElement(IConfigurationElement element, HashMap map) { |
| |
| AdapterFactoryProvider adapterFactoryProvider = null; |
| if (element.getName().equals(TAG_NAME)) { |
| try { |
| IConfigurationElement[] children = element.getChildren(); |
| boolean specifiedContentType = false; |
| if (children != null && children.length > 0) { |
| // content types are specified |
| for (int i = 0; i < children.length; i++) { |
| if (children[i].getName().equals(TAG_CONTENT_TYPE)) { |
| // it's possible to have non-contentType childrent |
| specifiedContentType = true; |
| String contentType = children[i].getAttribute(ATT_ID); |
| addElementForContentType(map, contentType, element); |
| } |
| } |
| } |
| if (!specifiedContentType) { |
| // no content type association |
| addElementForContentType(map, UNKNOWN_CONTENT_TYPE, element); |
| } |
| } catch (Exception e) { |
| // if the provider throws any exception, just log and continue |
| Logger.logException(e); |
| } |
| } |
| return adapterFactoryProvider; |
| } |
| |
| /** |
| * We simply require an 'add' method, of what ever it is we are to read |
| * into |
| */ |
| static void readRegistry(HashMap map) { |
| IExtensionRegistry registry = Platform.getExtensionRegistry(); |
| IExtensionPoint point = registry.getExtensionPoint(PLUGIN_ID, EXTENSION_POINT_ID); |
| if (point != null) { |
| IConfigurationElement[] elements = point.getConfigurationElements(); |
| for (int i = 0; i < elements.length; i++) { |
| readElement(elements[i], map); |
| } |
| } |
| } |
| |
| protected IConfigurationElement configElement = null; |
| |
| // protected final static String ADAPTER_CLASS = "adapterClass"; |
| // //$NON-NLS-1$ |
| // protected final static String DOC_TYPE_ID = "docTypeId"; //$NON-NLS-1$ |
| // protected final static String MIME_TYPE_LIST = "mimeTypeList"; |
| // //$NON-NLS-1$ |
| // |
| /** |
| * ContentTypeRegistryReader constructor comment. |
| */ |
| AdapterFactoryRegistryReader() { |
| super(); |
| } |
| } |