| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * 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 org.apache.hadoop.eclipse; |
| |
| import org.apache.hadoop.eclipse.servers.ServerRegistry; |
| import org.eclipse.ui.plugin.AbstractUIPlugin; |
| import org.osgi.framework.BundleContext; |
| |
| /** |
| * The activator class controls the plug-in life cycle |
| */ |
| public class Activator extends AbstractUIPlugin { |
| |
| /** |
| * The plug-in ID |
| */ |
| public static final String PLUGIN_ID = "org.apache.hadoop.eclipse"; |
| |
| /** |
| * The shared unique instance (singleton) |
| */ |
| private static Activator plugin; |
| |
| /** |
| * Constructor |
| */ |
| public Activator() { |
| synchronized (Activator.class) { |
| if (plugin != null) { |
| // Not a singleton!? |
| throw new RuntimeException("Activator for " + PLUGIN_ID |
| + " is not a singleton"); |
| } |
| plugin = this; |
| } |
| } |
| |
| /* @inheritDoc */ |
| @Override |
| public void start(BundleContext context) throws Exception { |
| super.start(context); |
| } |
| |
| /* @inheritDoc */ |
| @Override |
| public void stop(BundleContext context) throws Exception { |
| ServerRegistry.getInstance().dispose(); |
| plugin = null; |
| super.stop(context); |
| } |
| |
| /** |
| * Returns the shared unique instance (singleton) |
| * |
| * @return the shared unique instance (singleton) |
| */ |
| public static Activator getDefault() { |
| return plugin; |
| } |
| |
| } |