/**
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @author Arne Kepp / The Open Planning Project 2008
*/
package org.geowebcache.seed;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.scheduling.concurrent.CustomizableThreadFactory;
public class SeederThreadPoolExecutor extends ThreadPoolExecutor implements DisposableBean {
private static final Log log = LogFactory.getLog(SeederThreadPoolExecutor.class);
private static final ThreadFactory tf = new CustomizableThreadFactory("GWC Seeder Thread-");
public SeederThreadPoolExecutor(int corePoolSize, int maxPoolSize) {
super(corePoolSize, maxPoolSize, 60, TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>(),
tf);
}
/**
* Destroy method called by the application context at shutdown, needed to gracefully shutdown
* this thread pool executor and any running thread
*
* @see org.springframework.beans.factory.DisposableBean#destroy()
*/
public void destroy() throws Exception {
log.info("Initiating shut down for running and pending seed tasks...");
this.shutdownNow();
while (!this.isTerminated()) {
log.debug("Waiting for pending tasks to terminate....");
Thread.sleep(500);
}
log.info("Seeder thread pool executor shut down complete.");
}
}