org.apache.camel.impl

Class ServicePool<S extends org.apache.camel.Service>

java.lang.Object

org.apache.camel.support.service.ServiceSupport

org.apache.camel.impl.ServicePool<S>

All Implemented Interfaces:

org.apache.camel.NonManagedService, org.apache.camel.Service, org.apache.camel.ShutdownableService, org.apache.camel.StatefulService, org.apache.camel.SuspendableService

public class ServicePool<S extends org.apache.camel.Service>
extends org.apache.camel.support.service.ServiceSupport
implements org.apache.camel.NonManagedService

A service pool is like a connection pool but can pool any kind of objects.

Notice the capacity is per key which means that each key can contain at most (the capacity) services. The pool can contain an unbounded number of keys.

By default the capacity is set to 100.

Field Summary

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

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

Constructor Summary

Constructors

Constructor and Description
ServicePool(org.apache.camel.util.function.ThrowingFunction<org.apache.camel.Endpoint,S,Exception> producer, Function<S,org.apache.camel.Endpoint> getEndpoint, int capacity)

Method Summary

Modifier and Type	Method and Description
S	acquire(org.apache.camel.Endpoint endpoint) Tries to acquire the service with the given key
void	cleanUp()
protected void	doStart()
protected void	doStop()
long	getEvicted()
long	getHits()
int	getMaxCacheSize()
long	getMisses()
protected org.apache.camel.impl.ServicePool.Pool<S>	getPool(org.apache.camel.Endpoint endpoint)
protected void	onEvict(S s)
void	release(org.apache.camel.Endpoint endpoint, S s) Releases the service back to the pool
void	resetStatistics()
int	size() Returns the current size of the pool

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

doInit, doResume, doShutdown, doSuspend, getStatus, init, 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, toString, wait, wait, wait

Constructor Detail

ServicePool

public ServicePool(org.apache.camel.util.function.ThrowingFunction<org.apache.camel.Endpoint,S,Exception> producer,
                   Function<S,org.apache.camel.Endpoint> getEndpoint,
                   int capacity)

Method Detail

onEvict

protected void onEvict(S s)

acquire

public S acquire(org.apache.camel.Endpoint endpoint)
          throws Exception

Tries to acquire the service with the given key

Parameters:

endpoint - the endpoint

Returns:

the acquired service

Throws:

Exception

release

public void release(org.apache.camel.Endpoint endpoint,
                    S s)

Releases the service back to the pool

Parameters:

endpoint - the endpoint

s - the service

getPool

protected org.apache.camel.impl.ServicePool.Pool<S> getPool(org.apache.camel.Endpoint endpoint)

size

public int size()

Returns the current size of the pool

Returns:

the current size of the pool

doStart

protected void doStart()
                throws Exception

Specified by:

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

Throws:

Exception

doStop

protected void doStop()
               throws Exception

Specified by:

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

Throws:

Exception

cleanUp

public void cleanUp()

resetStatistics

public void resetStatistics()

getEvicted

public long getEvicted()

getMisses

public long getMisses()

getHits

public long getHits()

getMaxCacheSize

public int getMaxCacheSize()