org.opencastproject.manager.system.Restart.java Source code

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Here is the source code for org.opencastproject.manager.system.Restart.java

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/**
 * Licensed to The Apereo Foundation under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 *
 * The Apereo Foundation licenses this file to you under the Educational
 * Community 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://opensource.org/licenses/ecl2.txt
 *
 * 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.opencastproject.manager.system;

import java.io.File;
import java.io.IOException;

import org.apache.commons.io.FileUtils;

import org.osgi.framework.Bundle;
import org.osgi.framework.BundleException;
import org.osgi.framework.BundleContext;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import org.opencastproject.manager.api.PluginManagerConstants;

/**
 * This Class restarts the framework.
 *
 * @author Leonid Oldenburger
 */
public class Restart {

    /**
     * The bundle context
     */
    private BundleContext bundleContext;

    private static final Logger logger = LoggerFactory.getLogger(Restart.class);

    /**
     * Constructor
     *
     * @param bundleContext
     */
    public Restart(BundleContext bundleContext) {

        this.bundleContext = bundleContext;
    }

    /**
     * Restarts the framework.
     *
     * @throws IOException
     */
    public void restart() throws IOException {

        FileUtils.cleanDirectory(new File(PluginManagerConstants.FELIX_CACHE_PATH));

        final Bundle systemBundle = bundleContext.getBundle(0);

        Thread t = new Thread("Stopper") {

            public void run() {
                try {
                    Thread.sleep(2000L);
                } catch (InterruptedException ie) {
                }

                // stopping bundle 0 (system bundle) stops the framework
                try {
                    if (false) {
                        systemBundle.update();
                    } else {
                        systemBundle.stop();
                    }
                } catch (BundleException be) {
                    logger.error("Restarting Matterhorn failed.");
                }
            }
        };

        t.start();
    }
}