org.apache.camel.processor.loadbalancer
Class LoadBalancerSupport

java.lang.Object
  org.apache.camel.impl.ServiceSupport
      org.apache.camel.processor.loadbalancer.LoadBalancerSupport

All Implemented Interfaces:

AsyncProcessor, Navigate<Processor>, Processor, LoadBalancer, Service, ShutdownableService

Direct Known Subclasses:

FailOverLoadBalancer, QueueLoadBalancer, SimpleLoadBalancerSupport, TopicLoadBalancer

public abstract class LoadBalancerSupport
extends ServiceSupport
implements LoadBalancer, Navigate<Processor>

A default base class for a LoadBalancer implementation.

This implementation is dedicated for asynchronous load balancers.

Consider using the SimpleLoadBalancerSupport if your load balancer does not by nature support asynchronous routing.

Version:

Field Summary

protected org.slf4j.Logger

log

Constructor Summary

LoadBalancerSupport()

Method Summary

void	addProcessor(Processor processor) Adds a new processor to the load balancer
protected void	doStart()
protected void	doStop()
List<Processor>	getProcessors() Returns the current processors available to this load balancer
boolean	hasNext() Are there more outputs?
List<Processor>	next() Next group of outputs
void	process(Exchange exchange) Processes the message exchange
void	removeProcessor(Processor processor) Removes the given processor from the load balancer

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, toString, wait, wait, wait

Methods inherited from interface org.apache.camel.AsyncProcessor

process

Field Detail

log

protected final org.slf4j.Logger log

Constructor Detail

LoadBalancerSupport

public LoadBalancerSupport()

Method Detail

addProcessor

public void addProcessor(Processor processor)

Description copied from interface: LoadBalancer

Adds a new processor to the load balancer

Specified by:

addProcessor in interface LoadBalancer

Parameters:

processor - the processor to be added to the load balancer

removeProcessor

public void removeProcessor(Processor processor)

Description copied from interface: LoadBalancer

Removes the given processor from the load balancer

Specified by:

removeProcessor in interface LoadBalancer

Parameters:

processor - the processor to be removed from the load balancer

getProcessors

public List<Processor> getProcessors()

Description copied from interface: LoadBalancer

Returns the current processors available to this load balancer

Specified by:

getProcessors in interface LoadBalancer

Returns:

the processors available

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

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

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.