org.apache.camel.processor
Class DelegateAsyncProcessor

java.lang.Object
  extended by org.apache.camel.impl.ServiceSupport
      extended by org.apache.camel.processor.DelegateAsyncProcessor
All Implemented Interfaces:
AsyncProcessor, Navigate<Processor>, Processor, Service, ShutdownableService
Direct Known Subclasses:
CatchProcessor, DelayProcessorSupport, FabricTraceProcessor, FilterProcessor, HandleFaultInterceptor, InstrumentationProcessor, InterceptEndpointProcessor, LoopProcessor, RoutePolicyProcessor, SamplingThrottler, StreamCachingInterceptor, TraceInterceptor, UnitOfWorkProcessor, WrapProcessor

public class DelegateAsyncProcessor
extends ServiceSupport
implements AsyncProcessor, Navigate<Processor>

A Delegate pattern which delegates processing to a nested AsyncProcessor which can be useful for implementation inheritance when writing an Policy

Important: This implementation does support the asynchronous routing engine. If you are implementing a EIP pattern please use this as the delegate.

Version:
See Also:
DelegateProcessor

Field Summary
protected  AsyncProcessor processor
           
 
Constructor Summary
DelegateAsyncProcessor()
           
DelegateAsyncProcessor(AsyncProcessor processor)
           
DelegateAsyncProcessor(Processor processor)
           
 
Method Summary
protected  void doStart()
           
protected  void doStop()
           
 AsyncProcessor getProcessor()
           
 boolean hasNext()
          Are there more outputs?
 List<Processor> next()
          Next group of outputs
 void process(Exchange exchange)
          Processes the message exchange
 boolean process(Exchange exchange, AsyncCallback callback)
          Processes the message exchange.
protected  boolean processNext(Exchange exchange, AsyncCallback callback)
           
 void setProcessor(AsyncProcessor processor)
           
 void setProcessor(Processor processor)
           
 String toString()
           
 
Methods inherited from class org.apache.camel.impl.ServiceSupport
addChildService, doResume, doShutdown, doSuspend, getStatus, getVersion, isRunAllowed, isStarted, isStarting, isStopped, isStopping, isSuspended, isSuspending, removeChildService, resume, shutdown, start, start, stop, suspend
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

processor

protected AsyncProcessor processor
Constructor Detail

DelegateAsyncProcessor

public DelegateAsyncProcessor()

DelegateAsyncProcessor

public DelegateAsyncProcessor(AsyncProcessor processor)

DelegateAsyncProcessor

public DelegateAsyncProcessor(Processor processor)
Method Detail

toString

public String toString()
Overrides:
toString in class Object

getProcessor

public AsyncProcessor getProcessor()

setProcessor

public void setProcessor(AsyncProcessor processor)

setProcessor

public void setProcessor(Processor processor)

doStart

protected void doStart()
                throws Exception
Specified by:
doStart in class ServiceSupport
Throws:
Exception

doStop

protected void doStop()
               throws Exception
Specified by:
doStop in class ServiceSupport
Throws:
Exception

process

public void process(Exchange exchange)
             throws Exception
Description copied from interface: Processor
Processes the message exchange

Specified by:
process in interface Processor
Parameters:
exchange - the message exchange
Throws:
Exception - if an internal processing error has occurred.

process

public boolean process(Exchange exchange,
                       AsyncCallback callback)
Description copied from interface: AsyncProcessor
Processes the message exchange. Similar to Processor.process(org.apache.camel.Exchange), but the caller supports having the exchange asynchronously processed.

If there was a failure processing then the caused Exception would be set on the Exchange.

Specified by:
process in interface AsyncProcessor
Parameters:
exchange - the message exchange
callback - the AsyncCallback will be invoked when the processing of the exchange is completed. If the exchange is completed synchronously, then the callback is also invoked synchronously. The callback should therefore be careful of starting recursive loop.
Returns:
(doneSync) true to continue execute synchronously, false to continue being executed asynchronously
See Also:
AsyncProcessorHelper.process(AsyncProcessor, Exchange, AsyncCallback)

processNext

protected boolean processNext(Exchange exchange,
                              AsyncCallback callback)

hasNext

public boolean hasNext()
Description copied from interface: Navigate
Are there more outputs?

Specified by:
hasNext in interface Navigate<Processor>
Returns:
true if more outputs

next

public List<Processor> next()
Description copied from interface: Navigate
Next group of outputs

Specified by:
next in interface Navigate<Processor>
Returns:
next group or null if no more outputs


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