| /* |
| * Copyright (c) 2012, the Dart project authors. |
| * |
| * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except |
| * in compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.dart.tools.core.pub; |
| |
| import org.eclipse.core.resources.IContainer; |
| import org.eclipse.core.runtime.ListenerList; |
| |
| import java.util.Map; |
| |
| /** |
| * The unique instance of the class <code>PubManager</code> is used to manage the listeners for pub |
| * updates. |
| * |
| * @coverage dart.tools.core.pub |
| */ |
| public class PubManager { |
| |
| private static final PubManager INSTANCE = new PubManager(); |
| |
| public synchronized static PubManager getInstance() { |
| return INSTANCE; |
| } |
| |
| private final ListenerList listeners = new ListenerList(); |
| |
| public void addListener(IPubUpdateListener listener) { |
| listeners.add(listener); |
| } |
| |
| public void notifyListeners(IContainer container) { |
| for (Object listener : listeners.getListeners()) { |
| ((IPubUpdateListener) listener).packagesUpdated(container); |
| } |
| } |
| |
| public void notifyListeners(Map<String, Object> added) { |
| for (Object listener : listeners.getListeners()) { |
| ((IPubUpdateListener) listener).pubCacheChanged(added); |
| } |
| } |
| |
| public void removeListener(IPubUpdateListener listener) { |
| listeners.remove(listener); |
| } |
| |
| } |