org.apache.camel.support

Class DefaultTimeoutMap<K,V>

java.lang.Object

org.apache.camel.support.service.ServiceSupport

org.apache.camel.support.DefaultTimeoutMap<K,V>

All Implemented Interfaces:

AutoCloseable, org.apache.camel.Service, org.apache.camel.ShutdownableService, org.apache.camel.StatefulService, org.apache.camel.SuspendableService, org.apache.camel.TimeoutMap<K,V>

public class DefaultTimeoutMap<K,V>
extends org.apache.camel.support.service.ServiceSupport
implements org.apache.camel.TimeoutMap<K,V>

Default implementation of the TimeoutMap.

This implementation supports thread safe and non thread safe, in the manner you can enable locking or not. By default locking is enabled and thus we are thread safe.

You must provide a ScheduledExecutorService in the constructor which is used to schedule a background task which check for old entries to purge. This implementation will shutdown the scheduler if its being stopped. You must also invoke ServiceSupport.start() to startup the timeout map, before its ready to be used. And you must invoke ServiceSupport.stop() to stop the map when no longer in use.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.camel.TimeoutMap

org.apache.camel.TimeoutMap.Listener<K,V>

Field Summary

Fields

Modifier and Type	Field and Description
protected org.slf4j.Logger	log

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

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

Constructor Summary

Constructors

Constructor and Description
DefaultTimeoutMap(ScheduledExecutorService executor)
DefaultTimeoutMap(ScheduledExecutorService executor, long requestMapPollTimeMillis)
DefaultTimeoutMap(ScheduledExecutorService executor, long requestMapPollTimeMillis, boolean useLock)
DefaultTimeoutMap(ScheduledExecutorService executor, long requestMapPollTimeMillis, Lock lock)

Method Summary

Modifier and Type	Method and Description
void	addListener(org.apache.camel.TimeoutMap.Listener<K,V> listener)
protected long	currentTime()
protected void	doStart()
protected void	doStop()
V	get(K key)
ScheduledExecutorService	getExecutor()
long	getPurgePollTime()
protected boolean	isValidForEviction(TimeoutMapEntry<K,V> entry) A hook to allow derivations to avoid evicting the current entry
protected void	purge()
V	put(K key, V value, long timeoutMillis)
V	putIfAbsent(K key, V value, long timeoutMillis)
V	remove(K key)
protected void	schedulePoll() lets schedule each time to allow folks to change the time at runtime
int	size()
protected void	updateExpireTime(TimeoutMapEntry<K,V> entry)

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

build, doBuild, doInit, doResume, doShutdown, 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, toString, wait, wait, wait

Methods inherited from interface org.apache.camel.Service

build, close, init, start, stop

Field Detail

log

protected final org.slf4j.Logger log

Constructor Detail

DefaultTimeoutMap

public DefaultTimeoutMap(ScheduledExecutorService executor)

DefaultTimeoutMap

public DefaultTimeoutMap(ScheduledExecutorService executor,
                         long requestMapPollTimeMillis)

DefaultTimeoutMap

public DefaultTimeoutMap(ScheduledExecutorService executor,
                         long requestMapPollTimeMillis,
                         boolean useLock)

DefaultTimeoutMap

public DefaultTimeoutMap(ScheduledExecutorService executor,
                         long requestMapPollTimeMillis,
                         Lock lock)

Method Detail

get

public V get(K key)

Specified by:

get in interface org.apache.camel.TimeoutMap<K,V>

put

public V put(K key,
             V value,
             long timeoutMillis)

Specified by:

put in interface org.apache.camel.TimeoutMap<K,V>

putIfAbsent

public V putIfAbsent(K key,
                     V value,
                     long timeoutMillis)

Specified by:

putIfAbsent in interface org.apache.camel.TimeoutMap<K,V>

remove

public V remove(K key)

Specified by:

remove in interface org.apache.camel.TimeoutMap<K,V>

size

public int size()

Specified by:

size in interface org.apache.camel.TimeoutMap<K,V>

purge

protected void purge()

getPurgePollTime

public long getPurgePollTime()

getExecutor

public ScheduledExecutorService getExecutor()

addListener

public void addListener(org.apache.camel.TimeoutMap.Listener<K,V> listener)

Specified by:

addListener in interface org.apache.camel.TimeoutMap<K,V>

schedulePoll

protected void schedulePoll()

lets schedule each time to allow folks to change the time at runtime

isValidForEviction

protected boolean isValidForEviction(TimeoutMapEntry<K,V> entry)

A hook to allow derivations to avoid evicting the current entry

updateExpireTime

protected void updateExpireTime(TimeoutMapEntry<K,V> entry)

currentTime

protected long currentTime()

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