fr.inria.atlanmod.emfviews.ui.linkingview.Activator.java Source code

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Here is the source code for fr.inria.atlanmod.emfviews.ui.linkingview.Activator.java

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/*******************************************************************************
 * Copyright (c) 2013 INRIA.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * Juan David Villa Calle - initial API and implementation
 *******************************************************************************/
package fr.inria.atlanmod.emfviews.ui.linkingview;

import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;
import org.osgi.framework.Bundle;

import java.net.URL;

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

    // The plug-in ID
    public static final String PLUGIN_ID = "fr.inria.atlanmod.emfviews.ui.linkingview"; //$NON-NLS-1$

    // 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);
        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 Activator getDefault() {
        return plugin;
    }

    public static URL getInstallURL() {
        Bundle bundle = Platform.getBundle(Activator.PLUGIN_ID);
        if (bundle != null) {
            return bundle.getEntry("/");
        } else
            return null;
    }

    public static ImageDescriptor getImage(String relativePath) {
        URL url = getInstallURL();
        ImageDescriptor descriptor = null;
        try {
            descriptor = ImageDescriptor.createFromURL(new URL(url, relativePath));
        } catch (Exception e) {
            descriptor = ImageDescriptor.getMissingImageDescriptor();
        }
        return descriptor;
    }

}