org.apache.camel.impl
Class DefaultServicePool<Key,Service>

java.lang.Object
  org.apache.camel.impl.ServiceSupport
      org.apache.camel.impl.DefaultServicePool<Key,Service>

All Implemented Interfaces:

Service, ServicePool<Key,Service>

Direct Known Subclasses:

DefaultProducerServicePool

public abstract class DefaultServicePool<Key,Service>
extends ServiceSupport
implements ServicePool<Key,Service>

Default implementation to inherit for a basic service pool.

Version:

$Revision: 779038 $

Field Summary

protected int	capacity
protected org.apache.commons.logging.Log	log
protected ConcurrentHashMap<Key,BlockingQueue<Service>>	pool

Constructor Summary

DefaultServicePool(int capacity)
The capacity, note this is per key.

Method Summary

Service	acquire(Key key) Tries to acquire the service with the given key
Service	addAndAcquire(Key key, Service service) Adds the given service to the pool and acquires it.
protected void	doStart()
protected void	doStop()
void	release(Key key, Service service) Releases the service back to the pool

Methods inherited from class org.apache.camel.impl.ServiceSupport

addChildService, getStatus, getVersion, isRunAllowed, isStarted, isStarting, isStopped, isStopping, removeChildService, start, stop

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.Service

start, stop

Field Detail

log

protected final org.apache.commons.logging.Log log

pool

protected final ConcurrentHashMap<Key,BlockingQueue<Service>> pool

capacity

protected final int capacity

Constructor Detail

DefaultServicePool

public DefaultServicePool(int capacity)

The capacity, note this is per key.

Parameters:

capacity - the capacity per key.

Method Detail

addAndAcquire

public Service addAndAcquire(Key key,
                             Service service)

Description copied from interface: ServicePool

Adds the given service to the pool and acquires it.

Specified by:

addAndAcquire in interface ServicePool<Key,Service>

Parameters:

key - the key

service - the service

Returns:

the acquired service, is newer null

acquire

public Service acquire(Key key)

Description copied from interface: ServicePool

Tries to acquire the service with the given key

Specified by:

acquire in interface ServicePool<Key,Service>

Parameters:

key - the key

Returns:

the acquired service, or null if no free in pool

release

public void release(Key key,
                    Service service)

Description copied from interface: ServicePool

Releases the service back to the pool

Specified by:

release in interface ServicePool<Key,Service>

Parameters:

key - the key

service - the service

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