UpdateStudioHandler.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.installer.handlers;

import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.IHandler;
import org.eclipse.core.commands.IHandlerListener;
import org.eclipse.core.runtime.jobs.Job;

import com.motorola.studio.android.common.utilities.EclipseUtils;
import com.motorola.studio.android.installer.i18n.InstallerNLS;
import com.motorola.studio.android.installer.jobs.UpdateStudioJob;

public class UpdateStudioHandler implements IHandler
{

    public void addHandlerListener(IHandlerListener handlerListener)
    {
        // Nothing to do

    }

    public void dispose()
    {
        // Nothing to do

    }

    public Object execute(ExecutionEvent event) throws ExecutionException
    {

        Job progressJob = UpdateStudioJob.getInstance();

        if ((progressJob != null)
                && ((progressJob.getState() == Job.WAITING) || (progressJob.getState() == Job.RUNNING)))
        {
            EclipseUtils.showInformationDialog(InstallerNLS.UpdateStudio_UpdateAlreadyRunningTitle,
                    InstallerNLS.UpdateStudio_UpdateAlreadyRunningMsg);
        }
        else
        {
            progressJob =
                    UpdateStudioJob
                            .createJob(InstallerNLS.UpdateStudio_CheckingForUpdatesJobDescription);
            progressJob.setUser(true);
            progressJob.schedule();
        }

        return null;
    }

    public boolean isEnabled()
    {

        return true;
    }

    public boolean isHandled()
    {

        return true;
    }

    public void removeHandlerListener(IHandlerListener handlerListener)
    {
        // Nothing to do
    }

}