org.jgroups.util.ShutdownRejectedExecutionHandler Maven / Gradle / Ivy
package org.jgroups.util;
import java.util.concurrent.RejectedExecutionHandler;
import java.util.concurrent.ThreadPoolExecutor;
/**
* ShutdownRejectedExecutionHandler is a decorator RejectedExecutionHandler used
* in all JGroups ThreadPoolExecutor(s). Default RejectedExecutionHandler raises
* RuntimeException when a task is submitted to ThreadPoolExecutor that has been
* shutdown. ShutdownRejectedExecutionHandler instead logs only a warning
* message.
*
* @author Vladimir Blagojevic
* @see ThreadPoolExecutor
* @see RejectedExecutionHandler
* 14:49:05 belaban Exp $
*/
public class ShutdownRejectedExecutionHandler implements RejectedExecutionHandler {
RejectedExecutionHandler handler;
public ShutdownRejectedExecutionHandler(RejectedExecutionHandler handler) {
super();
if(handler == null)
throw new NullPointerException("RejectedExecutionHandler cannot be null");
this.handler=handler;
}
public void rejectedExecution(Runnable r, ThreadPoolExecutor executor) {
if(!executor.isShutdown()) {
handler.rejectedExecution(r, executor);
}
}
}