Java2JsPlugin.java

package org.eclipse.vjet.eclipse.javatojs.ui;

import java.io.IOException;
import java.net.URL;
import java.util.Properties;

import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Status;
import org.eclipse.ui.console.ConsolePlugin;
import org.eclipse.ui.console.IConsole;
import org.eclipse.ui.console.IConsoleManager;
import org.eclipse.ui.console.MessageConsole;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.eclipse.vjet.eclipse.javatojs.ui.adapters.Java2JsInput;
import org.osgi.framework.BundleContext;

/**
 * The activator class controls the plug-in life cycle
 */
public class Java2JsPlugin extends AbstractUIPlugin {

	// The plug-in ID
	public static final String PLUGIN_ID = "org.eclipse.vjet.eclipse.javatojs.ui"; //$NON-NLS-1$

	public static final String CODE_GEN_MARKER_ID = PLUGIN_ID + ".codeGenProblemMarker";
	public static final String MESSAGE_CONSOLE = "Java2Js";
	// The shared instance
	private static Java2JsPlugin plugin;

	private URL defaultJava2JsConfig;

	private Properties properties;
	
	/**
	 * The constructor
	 */
	public Java2JsPlugin() {
	}

	public static void logException(Exception e) {
		plugin.getLog().log(new Status(Status.ERROR, PLUGIN_ID, e.getLocalizedMessage(), e));
	}
	/*
	 * (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 Java2JsPlugin getDefault() {
		return plugin;
	}
	
	/**
	 * The plug-in contains the default configuration file.
	 * @return URL to the default config file
	 */
	public URL getDefaultJava2JsConfig() {
		if (defaultJava2JsConfig == null) {
			Path path = new Path(Java2JsInput.CONFIG_FILE_NAME);
			URL url = FileLocator.find(getBundle(),path,null);
			try {
				defaultJava2JsConfig = FileLocator.toFileURL(url);
			} catch (IOException e) {
				logException(e);
			}
		}
		return defaultJava2JsConfig;
	}
	
	public Properties getDefaultJava2JsConfigProperties() {
		if 	(properties == null) {
			properties = new Properties();
			Path path = new Path(Java2JsInput.CONFIG_FILE_NAME);
			try {
				properties.load(FileLocator.openStream(getBundle(), path, false));
			} catch (IOException e) {
				logException(e);
			}
		}	
		return properties;
	}
	
	/**
	 * Message console
	 * @return
	 */
	public MessageConsole getConsole() {
		IConsoleManager mgr = ConsolePlugin.getDefault().getConsoleManager();
		for (IConsole console : mgr.getConsoles()) {
			if (MESSAGE_CONSOLE.equals(console.getName())) {
				return (MessageConsole)console;
			}
		}
		MessageConsole msgconsole = new MessageConsole(MESSAGE_CONSOLE, null);
		mgr.addConsoles(new IConsole[]{msgconsole});
		return msgconsole;
	}

}