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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    *
    9    *    http://www.apache.org/licenses/LICENSE-2.0
   10    *
   11    * Unless required by applicable law or agreed to in writing, software
   12    * distributed under the License is distributed on an "AS IS" BASIS,
   13    * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   14    * See the License for the specific language governing permissions and
   15    * limitations under the License.
   16    */
   17   package org.apache.geronimo.st.v21.ui;
   18   
   19   import org.eclipse.jface.resource.ImageDescriptor;
   20   import org.eclipse.ui.plugin.AbstractUIPlugin;
   21   import org.osgi.framework.BundleContext;
   22   
   23   /**
   24    * The main plugin class to be used in the desktop.
   25    *
   26    * @version $Rev$ $Date$
   27    */
   28   public class Activator extends AbstractUIPlugin {
   29   
   30   	// The plug-in ID
   31   	public static final String PLUGIN_ID = "org.apache.geronimo.st.v21.ui";
   32   
   33   	// The shared instance
   34   	private static Activator plugin;
   35   
   36   	/**
   37   	 * The constructor
   38   	 */
   39   	public Activator() {
   40   		plugin = this;
   41   	}
   42   
   43   	/*
   44   	 * (non-Javadoc)
   45   	 * 
   46   	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
   47   	 */
   48   	public void start(BundleContext context) throws Exception {
   49   		super.start(context);
   50   	}
   51   
   52   	/*
   53   	 * (non-Javadoc)
   54   	 * 
   55   	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
   56   	 */
   57   	public void stop(BundleContext context) throws Exception {
   58   		plugin = null;
   59   		super.stop(context);
   60   	}
   61   
   62   	/**
   63   	 * Returns the shared instance
   64   	 * 
   65   	 * @return the shared instance
   66   	 */
   67   	public static Activator getDefault() {
   68   		return plugin;
   69   	}
   70   
   71   	/**
   72   	 * Returns an image descriptor for the image file at the given plug-in
   73   	 * relative path.
   74   	 * 
   75   	 * @param path
   76   	 *            the path
   77   	 * @return the image descriptor
   78   	 */
   79   	public static ImageDescriptor getImageDescriptor(String path) {
   80   		return AbstractUIPlugin.imageDescriptorFromPlugin("org.apache.geronimo.st.v21.ui", path);
   81   	}
   82   	
   83   }

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