RSESamplesPlugin Class

package samples;

import java.util.MissingResourceException;
import java.util.ResourceBundle;

import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.Platform;
import org.eclipse.rse.services.clientserver.messages.SystemMessage;
import org.eclipse.rse.services.clientserver.messages.SystemMessageFile;
import org.eclipse.rse.ui.SystemBasePlugin;
import org.osgi.framework.BundleContext;

/**
 * The activator class controls the plug-in life cycle
 */
public class RSESamplesPlugin extends SystemBasePlugin  {

	//The shared instance.
	private static RSESamplesPlugin plugin;

	//Resource bundle.
	private ResourceBundle resourceBundle = null;
	private static SystemMessageFile messageFile = null;
	
	/**
	 * The constructor.
	 */
	public RSESamplesPlugin() {
		super();
	}

	/**
	 * This method is called upon plug-in activation
	 */
	public void start(BundleContext context) throws Exception {
		super.start(context);
		plugin = this;
		messageFile = getMessageFile("rseSamplesMessages.xml");
	}

	/**
	 * This method is called when the plug-in is stopped
	 */
	public void stop(BundleContext context) throws Exception {
		plugin = null;
		resourceBundle = null;
		super.stop(context);
	}

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

	/**
	 * Returns the workspace instance.
	 */
	public static IWorkspace getWorkspace() {
		return ResourcesPlugin.getWorkspace();
	}

	/**
	 * Returns the string from the plugin's resource bundle,
	 * or 'key' if not found.
	 */
	public static String getResourceString(String key) {
		ResourceBundle bundle= RSESamplesPlugin.getDefault().getResourceBundle();
		try {
			return (bundle != null) ? bundle.getString(key) : key;
		} catch (MissingResourceException e) {
			return key;
		}
	}

	/**
	 * Returns the plugin's resource bundle,
	 */
	public ResourceBundle getResourceBundle() {
		try {
			if (resourceBundle == null)
				resourceBundle = ResourceBundle.getBundle("samples.rseSamplesResources");
		} catch (MissingResourceException x) {
			resourceBundle = null;
		}
		return resourceBundle;
	}

	/**
	 * Initialize the image registry by declaring all of the required graphics.
	 */
	protected void initializeImageRegistry()
	{
	}

	/**
	 * Load a message file for this plugin.
	 * @param messageFileName - the name of the message xml file. Will look for it in this plugin's install folder.
	 * @return a message file object containing the parsed contents of the message file, or null if not found.
	 */
	public SystemMessageFile getMessageFile(String messageFileName)
	{
		return loadMessageFile(getBundle(), messageFileName);  	
	}	

	/**
	 * Return our message file
	 */
	public static SystemMessageFile getPluginMessageFile()
	{
		return messageFile;
	}  

	/**
	 * Retrieve a message from this plugin's message file
	 */
	public static SystemMessage getPluginMessage(String msgId)
	{
		return getMessage(messageFile, msgId);
	}
}