Class MemcachedHandler

java.lang.Object

com.google.code.yanf4j.core.impl.HandlerAdapter

net.rubyeye.xmemcached.impl.MemcachedHandler

All Implemented Interfaces:

Handler

public class MemcachedHandler
extends HandlerAdapter

Memcached Session Handler,used for dispatching commands and session's lifecycle management

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static final class	MemcachedHandler.CheckHeartResultThread

Field Summary

Fields

Modifier and Type	Field	Description
private final MemcachedClient	client
static final IoBuffer	EMPTY_BUF
private boolean	enableHeartBeat
private static final String	HEART_BEAT_FAIL_COUNT_ATTR
(package private) final long	HEARTBEAT_PERIOD
private ExecutorService	heartBeatThreadPool
private final MemcachedSessionConnectListener	listener
private static final org.slf4j.Logger	log
private static final int	MAX_HEART_BEAT_FAIL_COUNT
private static final int	MAX_HEARTBEAT_THREADS
private final StatisticsHandler	statisticsHandler

Constructor Summary

Constructors

Constructor	Description
MemcachedHandler(MemcachedClient client)

Method Summary

Modifier and Type	Method	Description
private void	checkHeartBeat(Session session)
void	onExceptionCaught(Session session, Throwable throwable)
final void	onMessageReceived(Session session, Object msg)	On receive message from memcached server
final void	onMessageSent(Session session, Object msg)	put command which have been sent to queue
final void	onSessionClosed(Session session)	Check if have to reconnect on session closed
void	onSessionIdle(Session session)	Do a heartbeat action
void	onSessionStarted(Session session)	On session started
protected void	reconnect(MemcachedTCPSession session)	Auto reconect to memcached server
void	setEnableHeartBeat(boolean enableHeartBeat)
void	start()
void	stop()

Methods inherited from class HandlerAdapter

onSessionConnected, onSessionCreated, onSessionExpired

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

MAX_HEARTBEAT_THREADS

private static final int MAX_HEARTBEAT_THREADS

statisticsHandler

private final StatisticsHandler statisticsHandler

heartBeatThreadPool

private ExecutorService heartBeatThreadPool

listener

private final MemcachedSessionConnectListener listener

client

private final MemcachedClient client

log

private static final org.slf4j.Logger log

enableHeartBeat

private volatile boolean enableHeartBeat

EMPTY_BUF

public static final IoBuffer EMPTY_BUF

HEART_BEAT_FAIL_COUNT_ATTR

private static final String HEART_BEAT_FAIL_COUNT_ATTR

See Also:

• Constant Field Values

MAX_HEART_BEAT_FAIL_COUNT

private static final int MAX_HEART_BEAT_FAIL_COUNT

HEARTBEAT_PERIOD

final long HEARTBEAT_PERIOD

Constructor Details

MemcachedHandler

public MemcachedHandler(MemcachedClient client)

Method Details

onMessageReceived

public final void onMessageReceived(Session session,
 Object msg)

On receive message from memcached server

Specified by:

onMessageReceived in interface Handler

Overrides:

onMessageReceived in class HandlerAdapter

setEnableHeartBeat

public void setEnableHeartBeat(boolean enableHeartBeat)

onMessageSent

public final void onMessageSent(Session session,
 Object msg)

put command which have been sent to queue

Specified by:

onMessageSent in interface Handler

Overrides:

onMessageSent in class HandlerAdapter

onExceptionCaught

public void onExceptionCaught(Session session,
 Throwable throwable)

Specified by:

onExceptionCaught in interface Handler

Overrides:

onExceptionCaught in class HandlerAdapter

onSessionStarted

public void onSessionStarted(Session session)

On session started

Specified by:

onSessionStarted in interface Handler

Overrides:

onSessionStarted in class HandlerAdapter

onSessionClosed

public final void onSessionClosed(Session session)

Check if have to reconnect on session closed

Specified by:

onSessionClosed in interface Handler

Overrides:

onSessionClosed in class HandlerAdapter

onSessionIdle

public void onSessionIdle(Session session)

Do a heartbeat action

Specified by:

onSessionIdle in interface Handler

Overrides:

onSessionIdle in class HandlerAdapter

checkHeartBeat

private void checkHeartBeat(Session session)

reconnect

protected void reconnect(MemcachedTCPSession session)

Auto reconect to memcached server

Parameters:

session -

stop

public void stop()

start

public void start()