Activator.java

/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.motorola.studio.android.mat;

import java.util.List;

import org.eclipse.sequoyah.device.framework.factory.DeviceTypeRegistry;
import org.eclipse.sequoyah.device.framework.model.IDeviceType;
import org.eclipse.sequoyah.device.framework.model.IService;
import org.eclipse.sequoyah.device.framework.model.handler.IServiceHandler;
import org.eclipse.sequoyah.device.framework.model.handler.ServiceHandler;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

import com.motorola.studio.android.emulator.EmulatorPlugin;

/**
 * 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.motorola.studio.android.mat";

    // The shared instance
    private static Activator plugin;

    // Dump HPROF command handler
    private static ServiceHandler dumpHPROFHandler = null;

    // Dump HPRFO service ID
    private static final String SERVICE_DUMP_HPROF_ID = PLUGIN_ID + ".dumpHprofService";

    /*
     * (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;
    }

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

    /**
    * Retrieves the deploy service handler.
    * 
    * @return The currently registered stop service handler, or <null> if no handler is registered.
    */
    public static ServiceHandler getDumpHPROFHandler()
    {
        if (dumpHPROFHandler == null)
        {
            // find the appropriate service handler
            IDeviceType device =
                    DeviceTypeRegistry.getInstance().getDeviceTypeById(EmulatorPlugin.DEVICE_ID);
            List<IService> services = device.getServices();
            for (IService service : services)
            {
                IServiceHandler handler = service.getHandler();
                if (handler.getService().getId().equals(SERVICE_DUMP_HPROF_ID))
                {
                    dumpHPROFHandler = (ServiceHandler) handler;
                    break;
                }
            }
        }

        return dumpHPROFHandler;
    }

}