com.nextep.designer.synch.ui.SynchUIPlugin.java Source code

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Here is the source code for com.nextep.designer.synch.ui.SynchUIPlugin.java

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/*******************************************************************************
 * Copyright (c) 2011 neXtep Software and contributors.
 * All rights reserved.
 *
 * This file is part of neXtep designer.
 *
 * NeXtep designer is free software: you can redistribute it 
 * and/or modify it under the terms of the GNU General Public 
 * License as published by the Free Software Foundation, either 
 * version 3 of the License, or any later version.
 *
 * NeXtep designer is distributed in the hope that it will be 
 * useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Contributors:
 *     neXtep Softwares - initial API and implementation
 *******************************************************************************/
package com.nextep.designer.synch.ui;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;

import com.nextep.datadesigner.exception.ErrorException;

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

    // The plug-in ID
    public static final String PLUGIN_ID = "com.neXtep.designer.synch.ui";
    public static final Log LOG = LogFactory.getLog(SynchUIPlugin.class);
    // The shared instance
    private static SynchUIPlugin plugin;

    /**
     * The constructor
     */
    public SynchUIPlugin() {
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.
     * BundleContext)
     */
    @Override
    public void start(BundleContext context) throws Exception {
        super.start(context);
        plugin = this;
        SynchUIImages.loadImages();
        plugin.getWorkbench().getDisplay().asyncExec(new Runnable() {
            @Override
            public void run() {
                plugin.getWorkbench().getDisplay().disposeExec(new Runnable() {
                    @Override
                    public void run() {
                        SynchUIImages.loadImages();
                    }
                });
            }
        });
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.
     * BundleContext)
     */
    @Override
    public void stop(BundleContext context) throws Exception {
        plugin = null;
        super.stop(context);
    }

    /**
     * Returns the shared instance
     * 
     * @return the shared instance
     */
    public static SynchUIPlugin getDefault() {
        return plugin;
    }

    @SuppressWarnings("unchecked")
    public static <T> T getService(Class<T> serviceInterface) {
        final BundleContext context = getDefault().getBundle().getBundleContext();
        final ServiceReference ref = context.getServiceReference(serviceInterface.getName());
        if (ref != null) {
            Object o = context.getService(ref);
            if (o != null && serviceInterface.isAssignableFrom(o.getClass())) {
                return (T) o;
            }
        }
        throw new ErrorException("Unable to locate requested service " + serviceInterface.getName());
    }
}