/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

package com.nokia.carbide.discovery.ui;

import java.io.File;

import java.io.FileInputStream;

import java.io.IOException;

import java.io.InputStream;

import java.net.URL;

import java.text.MessageFormat;

import java.util.Properties;

import org.eclipse.core.runtime.IPath;

import org.eclipse.core.runtime.IStatus;

import org.eclipse.core.runtime.Path;

import org.eclipse.core.runtime.Platform;

import org.eclipse.core.runtime.Status;

import org.eclipse.jface.resource.ImageDescriptor;

import org.eclipse.osgi.service.datalocation.Location;

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.nokia.carbide.discovery.ui"; //$NON-NLS-1$

	// The shared instance

	private static Activator plugin;

	/**

	 * 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);

	}

	/*

	 * (non-Javadoc)

	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)

	 */

	public void stop(BundleContext context) throws Exception {

		super.stop(context);

		plugin = null;

	}

	/**

	 * Returns the shared instance

	 *

	 * @return the shared instance

	 */

	public static Activator getDefault() {

		return plugin;

	}

	/**

	 * 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 imageDescriptorFromPlugin(PLUGIN_ID, path);

	}

	/**

	 * Log to error log

	 * @param message

	 * @param t

	 */

	public static void logError(String message, Throwable t) {

		getDefault().getLog().log(new Status(IStatus.ERROR, Activator.PLUGIN_ID, message, t));

	}

	/**

	 * Get a value from the server.properties file

	 * @param key

	 * @return

	 */

	public static String getFromServerProperties(String key) {

		Location installLocation = Platform.getInstallLocation();

		URL url = installLocation.getURL();

		IPath path = new Path(url.getPath());

		path = path.append("configuration/server.properties"); //$NON-NLS-1$

		File file = path.toFile();

		Properties properties = new Properties();

		try {

			InputStream is = new FileInputStream(file);

			properties.load(is);

			is.close();

		} catch (IOException e) {

			String message = 

				MessageFormat.format("Could not find URL in configuration/server.properties file for key={0}", key);

			Activator.logError(message, e);

		}

		return (String) properties.get(key);

	}

}