org.wso2.developerstudio.eclipse.updater.job.UpdateCheckerJob.java Source code

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Here is the source code for org.wso2.developerstudio.eclipse.updater.job.UpdateCheckerJob.java

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/*
 * Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 * 
 * 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 org.wso2.developerstudio.eclipse.updater.job;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.SubMonitor;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.widgets.Display;
import org.omg.PortableInterceptor.SYSTEM_EXCEPTION;
import org.wso2.developerstudio.eclipse.logging.core.IDeveloperStudioLog;
import org.wso2.developerstudio.eclipse.logging.core.Logger;
import org.wso2.developerstudio.eclipse.updater.Messages;
import org.wso2.developerstudio.eclipse.updater.UpdaterPlugin;
import org.wso2.developerstudio.eclipse.updater.core.UpdateManager;

public class UpdateCheckerJob extends Job {

    protected UpdateManager updateManager;

    protected static boolean isCurrentJobRunning = false;

    public synchronized static boolean isJobRunning() {
        return isCurrentJobRunning;
    }

    public synchronized static void setIsJobRunning(boolean isJobRunning) {
        isCurrentJobRunning = isJobRunning;
    }

    protected static IDeveloperStudioLog log = Logger.getLog(UpdaterPlugin.PLUGIN_ID);

    public UpdateCheckerJob(UpdateManager updateManager) {
        super(Messages.UpdateCheckerJob_0);
        this.updateManager = updateManager;
    }

    @Override
    protected IStatus run(IProgressMonitor monitor) {
        try {
            if (!isJobRunning()) {
                setIsJobRunning(true);
                SubMonitor progress = SubMonitor.convert(monitor, Messages.UpdateCheckerJob_1, 2);
                try {
                    updateManager.checkForAvailableUpdates(progress.newChild(1));
                    updateManager.checkForAvailableFeatures(progress.newChild(1));
                } catch (Exception e) {
                    setIsJobRunning(false);
                    return Status.CANCEL_STATUS;
                }
                return Status.OK_STATUS;
            } else {
                Display.getDefault().syncExec(new Runnable() {
                    @Override
                    public void run() {
                        try {
                            MessageDialog dialog = new MessageDialog(Display.getDefault().getActiveShell(),
                                    "Updater Tool in Progress", null, "Updater tool is already in Progress",
                                    MessageDialog.INFORMATION, new String[] { "OK" }, 0);
                            dialog.open();
                        } catch (Exception e) {

                        }
                    }
                    // pop up user message saying an updater job is already
                    // running
                });
            }
        } catch (Exception e) {
            log.error(Messages.UpdateCheckerJob_2, e);
        }
        return Status.CANCEL_STATUS;
    }

    @Override
    protected void canceling() {
        setIsJobRunning(false);
        super.canceling();
    }

}