Activator.java

package com.aptana.ide.reporting;

import java.util.Hashtable;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.Image;
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 = "com.aptana.ide.reporting"; //$NON-NLS-1$

	// The shared instance
	private static Activator plugin;
	
	private static Hashtable<String, Image> images = new Hashtable<String, Image>();
	
	/**
	 * The constructor
	 */
	public Activator() {
	}

	/*
	 * (non-Javadoc)
	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
	 */
	public void start(BundleContext context) throws Exception {
		super.start(context);
		plugin = this;
	}

	/*
	 * (non-Javadoc)
	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
	 */
	public void stop(BundleContext context) throws Exception {
		plugin = null;
		super.stop(context);
	}

	/**
	 * Returns the shared instance
	 *
	 * @return the shared instance
	 */
	public static Activator getDefault() {
		return plugin;
	}
	

	/**
	 * getImage
	 * 
	 * @param path
	 * @return Image
	 */
    public static Image getImage(String path) {
        if (images.get(path) == null) {
            ImageDescriptor id = getImageDescriptor(path);
            if (id == null) {
                return null;
            }

            Image i = id.createImage();
            images.put(path, i);

            return i;
        }
        return images.get(path);
    }

	/**
	 * Returns an image descriptor for the image file at the given
	 * plug-in relative path.
	 *
	 * @param path the path
	 * @return the image descriptor
	 */
	public static ImageDescriptor getImageDescriptor(String path) {
		return AbstractUIPlugin.imageDescriptorFromPlugin(PLUGIN_ID, path);
	}
}