eclipsemecoreplugin.java

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	 * This directory will automatically be added to the emulator classpath when
	 * running midlets from source.
	 * 
	 * @return
	 */
	public static String getResourcesDirectoryName() {
		return getDefault().getPluginPreferences().getString(PREF_RESOURCES_DIR);
	}
	
	/**
	 * Create a component specification for the specified configuration
	 * element
	 * @param element
	 * @return
	 * @throws CoreException 
	 */
	private static LibrarySpecification createComponentSpecification(IConfigurationElement element) 
		throws CoreException 
	{
		String id = element.getAttribute("id");
		String name = element.getAttribute("name");
		String versionString = element.getAttribute("version");
		Version version = new Version(versionString);

		LibrarySpecification specification = new LibrarySpecification();
		specification.setIdentifier(id);
		specification.setName(name);
		specification.setVersion(version);
		
		return specification;
	}

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

	/**
	 * Get the verified output directory name the user has
	 * specified in the preferences.
	 * 
	 * @return
	 */
	public static String getVerifiedOutputDirectoryName() {
		return getDefault().getPluginPreferences().getString(PREF_VERIFIED_DIR);
	}

	/**
	 * Log the specified message.
	 */
	public static void log(int severity, String message) {
		log(severity, message, null);
	}
	
	/**
	 * Log the specified exception.
	 */
	public static void log(int severity, Throwable throwable) {
		log(severity, throwable.getMessage(), throwable);
	}
	
	/**
	 * Log the specified message and exception
	 */
	public static void log(int severity, String message, Throwable throwable) {
		if (message == null) message = throwable.getMessage();
		if (message == null) message = "No Message";
		
		EclipseMECorePlugin plugin = EclipseMECorePlugin.getDefault();
		String id = IEclipseMECoreConstants.PLUGIN_ID;
		Status status =
			new Status(severity, id, IStatus.OK, message, throwable);
		plugin.getLog().log(status);
	}
	
	/**
	 * Creates a new status object for our plugin.  The created status has no children.
	 *
	 * @param severity the severity; one of <code>OK</code>,
	 *   <code>ERROR</code>, <code>INFO</code>, or <code>WARNING</code>
	 * @param code the plug-in-specific status code, or <code>OK</code>
	 * @param message a human-readable message, localized to the
	 *    current locale
	 */
	public static IStatus newStatus(int severity, int code, String message) 
	{
		return newStatus(severity, code, message, null);
	}
	
	/**
	 * Creates a new status object for our plugin.  The created status has no children.
	 *
	 * @param severity the severity; one of <code>OK</code>,
	 *   <code>ERROR</code>, <code>INFO</code>, or <code>WARNING</code>
	 * @param code the plug-in-specific status code, or <code>OK</code>
	 * @param message a human-readable message, localized to the
	 *    current locale
	 * @param exception a low-level exception, or <code>null</code> if not
	 *    applicable 
	 */
	public static IStatus newStatus(int severity, int code, String message, Throwable exception) 
	{
		return new Status(severity, PLUGIN_ID, code, message, exception);
	}
	
	/**
	 * Recursively set the resources in the specified container and all resources
	 * within that container as derived.
	 * 
	 * @param container
	 * @throws CoreException
	 */
	public static void setResourcesAsDerived(IContainer container)
		throws CoreException 
	{
		if (container.exists()) {
			// Mark this folder first...
			container.setDerived(true);
					
			// Recursively handle the members of the directory
			IResource[] resources = container.members();
			for (int i = 0; i < resources.length; i++) {
				IResource resource = resources[i];
				if (resource instanceof IContainer) {
					setResourcesAsDerived((IContainer) resource);
				} else {
					resource.setDerived(true);
				}
			}
		}
	}

	/**
	 * Attempt to prompt on a status object.  If prompting fails,
	 * a CoreException will be thrown.
	 * 
	 * @param status
	 * @param source
	 * @return
	 * @throws CoreException
	 */
	public static Object statusPrompt(IStatus status, Object source)
		throws CoreException
	{
		Object result = null;
		
		IStatusHandler prompterStatus = 
			DebugPlugin.getDefault().getStatusHandler(PROMPTER_STATUS);
				
		if (prompterStatus == null) {
			// if there is no handler, throw the exception
			throw new CoreException(status);
		} else {
			result = prompterStatus.handleStatus(status, source);
		} 
	
		return result;
	}
	
	/**
	 * Throw a new CoreException wrapped around the specified
	 * exception.
	 * 
	 * @param severity
	 * @param code
	 * @param exception
	 * @throws CoreException
	 */
	public static void throwCoreException(
		int severity,
		int code,
		Throwable exception)
			throws CoreException 
	{
		// Make sure we create a valid status object
		String message = null;
		if (exception != null) { 
			message = exception.getMessage();
		}
		if (message == null) message = "[No Message]";
		
		IStatus status = new Status(
			severity,
			IEclipseMECoreConstants.PLUGIN_ID,
			code,
			message,
			exception);
		throw new CoreException(status);		
	}

	/**
	 * Throw a new CoreException wrapped around the specified
	 * String.
	 * 
	 * @param severity
	 * @param code
	 * @param message
	 * @throws CoreException
	 */
	public static void throwCoreException(
		int severity,
		int code,
		String message)
			throws CoreException 
	{
		if (message == null) message = "[No Message]";

		IStatus status = new Status(
			severity,
			IEclipseMECoreConstants.PLUGIN_ID,
			code,
			message,
			null);
		throw new CoreException(status);		
	}

	/**
	 * Returns the plugin's resource bundle,
	 * 
	 * @uml.property name="resourceBundle"
	 */
	public ResourceBundle getResourceBundle() {
		return resourceBundle;
	}

	/**
	 * @see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
	 */
	public void start(BundleContext context) throws Exception {
		super.start(context);

		// Install the preprocessor source mapper
		SourceMapperAccess.setSourceMapper(new PreprocessedSourceMapper());
		
		// Do version to version migration
		(new MigrationJob()).schedule(5000L);
	}

	/**
	 * @see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
	 */
	public void stop(BundleContext context) throws Exception {
		super.stop(context);
	}

	/**
	 * Execute the necessary migration steps.
	 * 
	 * @param monitor
	 * @throws CoreException 
	 */
	private void doMigration(IProgressMonitor monitor) 
		throws CoreException 
	{
		ResourcesPlugin.getWorkspace().run(new PreprocessedProjectMigrationRunnable(), monitor);
	}
}