org.apache.camel.processor

Class ThreadsProcessor

java.lang.Object

org.apache.camel.support.service.ServiceSupport

org.apache.camel.support.AsyncProcessorSupport

org.apache.camel.processor.ThreadsProcessor

All Implemented Interfaces:

AutoCloseable, org.apache.camel.AsyncProcessor, org.apache.camel.Processor, org.apache.camel.Service, org.apache.camel.ShutdownableService, org.apache.camel.spi.HasId, org.apache.camel.spi.IdAware, org.apache.camel.StatefulService, org.apache.camel.SuspendableService

public class ThreadsProcessor
extends org.apache.camel.support.AsyncProcessorSupport
implements org.apache.camel.spi.IdAware

Threads processor that leverage a thread pool for continue processing the Exchanges using the asynchronous routing engine.

Notice: For transacted routes then this ThreadsProcessor is not in use, as we want to process messages using the same thread to support all work done in the same transaction. The reason is that the transaction manager that orchestrate the transaction, requires all the work to be done on the same thread.

Pay attention to how this processor handles rejected tasks.

• Abort - The current exchange will be set with a RejectedExecutionException exception, and marked to stop continue routing. The UnitOfWork will be regarded as failed, due the exception.
• Discard - The current exchange will be marked to stop continue routing (notice no exception is set). The UnitOfWork will be regarded as successful, due no exception being set.
• DiscardOldest - The oldest exchange will be marked to stop continue routing (notice no exception is set). The UnitOfWork will be regarded as successful, due no exception being set. And the current exchange will be added to the task queue.
• CallerRuns - The current exchange will be processed by the current thread. Which mean the current thread will not be free to process a new exchange, as its processing the current exchange.

Field Summary

Fields inherited from class org.apache.camel.support.service.ServiceSupport

BUILDED, FAILED, INITIALIZED, lock, log, NEW, SHUTDOWN, SHUTTINGDOWN, STARTED, STARTING, status, STOPPED, STOPPING, SUSPENDED, SUSPENDING

Constructor Summary

Constructors

Constructor and Description
ThreadsProcessor(org.apache.camel.CamelContext camelContext, ExecutorService executorService, boolean shutdownExecutorService, org.apache.camel.util.concurrent.ThreadPoolRejectedPolicy rejectedPolicy)

Method Summary

Modifier and Type	Method and Description
protected void	doShutdown()
protected void	doStart()
protected void	doStop()
ExecutorService	getExecutorService()
String	getId()
org.apache.camel.util.concurrent.ThreadPoolRejectedPolicy	getRejectedPolicy()
boolean	process(org.apache.camel.Exchange exchange, org.apache.camel.AsyncCallback callback)
void	setId(String id)
String	toString()

Methods inherited from class org.apache.camel.support.AsyncProcessorSupport

process, processAsync

Methods inherited from class org.apache.camel.support.service.ServiceSupport

build, doBuild, doInit, doResume, doSuspend, getStatus, init, isBuild, isInit, isNew, isRunAllowed, isShutdown, isStarted, isStarting, isStartingOrStarted, isStopped, isStopping, isStoppingOrStopped, isSuspended, isSuspending, isSuspendingOrSuspended, resume, shutdown, start, stop, suspend

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.camel.Service

close

Constructor Detail

ThreadsProcessor

public ThreadsProcessor(org.apache.camel.CamelContext camelContext,
                        ExecutorService executorService,
                        boolean shutdownExecutorService,
                        org.apache.camel.util.concurrent.ThreadPoolRejectedPolicy rejectedPolicy)

Method Detail

process

public boolean process(org.apache.camel.Exchange exchange,
                       org.apache.camel.AsyncCallback callback)

Specified by:

process in interface org.apache.camel.AsyncProcessor

getExecutorService

public ExecutorService getExecutorService()

toString

public String toString()

Overrides:

toString in class Object

getId

public String getId()

Specified by:

getId in interface org.apache.camel.spi.HasId

setId

public void setId(String id)

Specified by:

setId in interface org.apache.camel.spi.IdAware

getRejectedPolicy

public org.apache.camel.util.concurrent.ThreadPoolRejectedPolicy getRejectedPolicy()

doStart

protected void doStart()
                throws Exception

Overrides:

doStart in class org.apache.camel.support.AsyncProcessorSupport

Throws:

Exception

doStop

protected void doStop()
               throws Exception

Overrides:

doStop in class org.apache.camel.support.AsyncProcessorSupport

Throws:

Exception

doShutdown

protected void doShutdown()
                   throws Exception

Overrides:

doShutdown in class org.apache.camel.support.service.ServiceSupport

Throws:

Exception