core/com.nokia.carbide.discovery.ui/src/com/nokia/carbide/discovery/ui/Activator.java
author dadubrow
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add portal support for browser page
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/*
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: 
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*
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*/
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package com.nokia.carbide.discovery.ui;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.URL;
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import java.text.MessageFormat;
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import java.util.Properties;
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import org.eclipse.core.runtime.IPath;
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import org.eclipse.core.runtime.IStatus;
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import org.eclipse.core.runtime.Path;
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import org.eclipse.core.runtime.Platform;
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import org.eclipse.core.runtime.Status;
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import org.eclipse.jface.resource.ImageDescriptor;
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import org.eclipse.osgi.service.datalocation.Location;
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import org.eclipse.ui.plugin.AbstractUIPlugin;
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import org.osgi.framework.BundleContext;
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/**
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 * The activator class controls the plug-in life cycle
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 */
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public class Activator extends AbstractUIPlugin {
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	// The plug-in ID
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	public static final String PLUGIN_ID = "com.nokia.carbide.discovery.ui"; //$NON-NLS-1$
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	// The shared instance
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	private static Activator plugin;
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	/**
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	 * The constructor
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	 */
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	public Activator() {
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	}
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	/*
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	 * (non-Javadoc)
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	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
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	 */
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	public void start(BundleContext context) throws Exception {
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		super.start(context);
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	}
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	/*
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	 * (non-Javadoc)
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	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
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	 */
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	public void stop(BundleContext context) throws Exception {
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		super.stop(context);
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		plugin = null;
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	}
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	/**
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	 * Returns the shared instance
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	 *
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	 * @return the shared instance
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	 */
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	public static Activator getDefault() {
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		return plugin;
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	}
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	/**
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	 * Returns an image descriptor for the image file at the given
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	 * plug-in relative path
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	 *
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	 * @param path the path
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	 * @return the image descriptor
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	 */
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	public static ImageDescriptor getImageDescriptor(String path) {
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		return imageDescriptorFromPlugin(PLUGIN_ID, path);
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	}
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	/**
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	 * Log to error log
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	 * @param message
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	 * @param t
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	 */
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	public static void logError(String message, Throwable t) {
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		getDefault().getLog().log(new Status(IStatus.ERROR, Activator.PLUGIN_ID, message, t));
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	}
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	/**
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	 * Get a value from the server.properties file
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	 * @param key
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	 * @return
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	 */
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	public static String getFromServerProperties(String key) {
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		Location installLocation = Platform.getInstallLocation();
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		URL url = installLocation.getURL();
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		IPath path = new Path(url.getPath());
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		path = path.append("configuration/server.properties"); //$NON-NLS-1$
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		File file = path.toFile();
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		Properties properties = new Properties();
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		try {
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			InputStream is = new FileInputStream(file);
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			properties.load(is);
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			is.close();
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		} catch (IOException e) {
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			String message = 
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				MessageFormat.format("Could not find URL in configuration/server.properties file for key={0}", key);
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			Activator.logError(message, e);
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		}
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		return (String) properties.get(key);
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	}
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}