/*

* Copyright (c) 2009 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.cpp.internal.codescanner;

import java.io.IOException;

import java.net.URL;

import org.eclipse.core.resources.ResourcesPlugin;

import org.eclipse.core.runtime.FileLocator;

import org.eclipse.core.runtime.Path;

import org.eclipse.jface.preference.IPreferenceStore;

import org.eclipse.jface.resource.ImageDescriptor;

import org.eclipse.ui.plugin.AbstractUIPlugin;

import org.osgi.framework.BundleContext;

import com.nokia.carbide.cpp.internal.codescanner.config.CSConfigManager;

import com.nokia.carbide.cpp.internal.codescanner.kb.CSKbManager;

/**

 * This activator class controls the plug-in life cycle

 */

public class CSPlugin extends AbstractUIPlugin {

	// The plug-in ID

	public static final String PLUGIN_ID = "com.nokia.carbide.cpp.codescanner";

	// The shared instance

	private static CSPlugin plugin;

	private static CSConfigManager configManager;

	private static CSKbManager kbManager;

	private static IPreferenceStore prefsStore;

	/**

	 * The constructor

	 */

	public CSPlugin() {

		plugin = this;

	}

	/*

	 * (non-Javadoc)

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

	 */

	public void start(BundleContext context) throws Exception {

		super.start(context);

		getCSPrefsStore();

	}

	/*

	 * (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

	 */

	public static CSPlugin 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);

	}

	/**

	 * Returns the shared preference store of this plugin

	 */

	public static IPreferenceStore getCSPrefsStore(){

		if (prefsStore == null){

			prefsStore = getDefault().getPreferenceStore();

		}

		return prefsStore;

	}

	/**

	 * Returns the shared configuration manager.

	 */

	public static CSConfigManager getConfigManager() {

		if (configManager == null) {

			configManager = new CSConfigManager();

			ResourcesPlugin.getWorkspace().addResourceChangeListener(configManager);	

		}

		return configManager;

	}

	/**

	 * Returns the shared knowledge base rule manager.

	 */

	public static CSKbManager getKbManager() {

		if (kbManager == null) {

			kbManager = new CSKbManager();

		}

		return kbManager;

	}

	/**

	 * Returns the full path of the tools folder in this plugin.

	 * @throws Exception

	 */

	public static String getPluginInstallLocation() throws Exception {

		String location = "";

		try {

			URL pluginURL = FileLocator.find(getDefault().getBundle(), new Path("/"), null);

			pluginURL = FileLocator.resolve(pluginURL);

			String pluginFilePath = pluginURL.getFile();

			Path pluginPath = new Path(pluginFilePath);

			location = pluginPath.toOSString();

		} catch (IOException e) {

			e.printStackTrace();

		}

		return location;

	}

}