/*
* 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.
*/
using System;
using System.Threading;
using Quartz;
using Quartz.Simpl;
using Spring.Objects.Factory;
namespace Spring.Scheduling.Quartz{
/// <summary>
/// Subclass of Quartz's SimpleThreadPool that implements Spring's
/// TaskExecutor interface and listens to Spring lifecycle callbacks.
/// </summary>
/// <author>Juergen Hoeller</author>
/// <seealso cref="SimpleThreadPool" />
/// <seealso cref="ITaskExecutor" />
/// <seealso cref="SchedulerFactoryObject.TaskExecutor" />
public class SimpleThreadPoolTaskExecutor : SimpleThreadPool, ISchedulingTaskExecutor, IInitializingObject, IDisposable
{
private bool waitForJobsToCompleteOnShutdown = false;
/// <summary>
/// Set whether to wait for running jobs to complete on Shutdown.
/// Default is "false".
/// </summary>
/// <value>
/// <c>true</c> if [wait for jobs to complete on shutdown]; otherwise, <c>false</c>.
/// </value>
/// <seealso cref="SimpleThreadPool.Shutdown(bool)"/>
public virtual bool WaitForJobsToCompleteOnShutdown
{
set { waitForJobsToCompleteOnShutdown = value; }
}
/// <summary>
/// Invoked by an <see cref="Spring.Objects.Factory.IObjectFactory"/>
/// after it has injected all of an object's dependencies.
/// </summary>
/// <remarks>
/// <p>
/// This method allows the object instance to perform the kind of
/// initialization only possible when all of it's dependencies have
/// been injected (set), and to throw an appropriate exception in the
/// event of misconfiguration.
/// </p>
/// <p>
/// Please do consult the class level documentation for the
/// <see cref="Spring.Objects.Factory.IObjectFactory"/> interface for a
/// description of exactly <i>when</i> this method is invoked. In
/// particular, it is worth noting that the
/// <see cref="Spring.Objects.Factory.IObjectFactoryAware"/>
/// and <see cref="Spring.Context.IApplicationContextAware"/>
/// callbacks will have been invoked <i>prior</i> to this method being
/// called.
/// </p>
/// </remarks>
/// <exception cref="System.Exception">
/// In the event of misconfiguration (such as the failure to set a
/// required property) or if initialization fails.
/// </exception>
public virtual void AfterPropertiesSet()
{
Initialize();
}
/// <summary>
/// Executes the specified task.
/// </summary>
/// <param name="task">The task.</param>
public virtual void Execute(ThreadStart task)
{
if (task == null)
{
throw new ArgumentException("Runnable must not be null", "task");
}
if (!RunInThread(new ThreadRunnableDelegate(task)))
{
throw new SchedulingException("Quartz SimpleThreadPool already shut down");
}
}
/// <summary> This task executor prefers short-lived work units.</summary>
public virtual bool PrefersShortLivedTasks
{
get { return true; }
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public virtual void Dispose()
{
Shutdown(waitForJobsToCompleteOnShutdown);
}
internal class ThreadRunnableDelegate : IThreadRunnable
{
private ThreadStart ts;
public ThreadRunnableDelegate(ThreadStart ts)
{
this.ts = ts;
}
public void Run()
{
ts.Invoke();
}
}
}
}
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