org.springframework.scheduling.quartz.SimpleThreadPoolTaskExecutor Maven / Gradle / Ivy
/*
* Copyright 2002-2006 the original author or authors.
*
* 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.springframework.scheduling.quartz;
import org.quartz.SchedulerConfigException;
import org.quartz.simpl.SimpleThreadPool;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.scheduling.SchedulingException;
import org.springframework.scheduling.SchedulingTaskExecutor;
import org.springframework.util.Assert;
/**
* Subclass of Quartz's SimpleThreadPool that implements Spring's
* TaskExecutor interface and listens to Spring lifecycle callbacks.
*
* Can be used as a thread-pooling TaskExecutor backend, in particular
* on JDK <= 1.5 (where the JDK ThreadPoolExecutor isn't available yet).
* Can be shared between a Quartz Scheduler (specified as "taskExecutor")
* and other TaskExecutor users, or even used completely independent of
* a Quartz Scheduler (as plain TaskExecutor backend).
*
* @author Juergen Hoeller
* @since 2.0
* @see org.quartz.simpl.SimpleThreadPool
* @see org.springframework.core.task.TaskExecutor
* @see SchedulerFactoryBean#setTaskExecutor
*/
public class SimpleThreadPoolTaskExecutor extends SimpleThreadPool
implements SchedulingTaskExecutor, InitializingBean, DisposableBean {
private boolean waitForJobsToCompleteOnShutdown = false;
/**
* Set whether to wait for running jobs to complete on shutdown.
* Default is "false".
* @see org.quartz.simpl.SimpleThreadPool#shutdown(boolean)
*/
public void setWaitForJobsToCompleteOnShutdown(boolean waitForJobsToCompleteOnShutdown) {
this.waitForJobsToCompleteOnShutdown = waitForJobsToCompleteOnShutdown;
}
public void afterPropertiesSet() throws SchedulerConfigException {
initialize();
}
public void execute(Runnable task) {
Assert.notNull(task, "Runnable must not be null");
if (!runInThread(task)) {
throw new SchedulingException("Quartz SimpleThreadPool already shut down");
}
}
/**
* This task executor prefers short-lived work units.
*/
public boolean prefersShortLivedTasks() {
return true;
}
public void destroy() {
shutdown(this.waitForJobsToCompleteOnShutdown);
}
}