org.glassfish.grizzly.memcached.zookeeper

Class CacheServerListBarrierListener

java.lang.Object

org.glassfish.grizzly.memcached.zookeeper.CacheServerListBarrierListener

All Implemented Interfaces:

BarrierListener

Direct Known Subclasses:

PreferRemoteConfigBarrierListener

public class CacheServerListBarrierListener
extends Object
implements BarrierListener

The BarrierListener implementation for synchronizing the cache server list among all clients which have joined the same zookeeper server

Author:

Bongjae Chang

Field Summary

Fields

Modifier and Type	Field and Description
protected MemcachedCache	cache
protected String	cacheName
static String	DEFAULT_SERVER_LIST_CHARSET
protected Set<SocketAddress>	localCacheServerSet

Constructor Summary

Constructors

Constructor and Description
CacheServerListBarrierListener(MemcachedCache cache, Set<SocketAddress> cacheServerSet)

Method Summary

Methods

Modifier and Type	Method and Description
void	addCustomListener(BarrierListener listener)
static Set<SocketAddress>	getAddressesFromStringList(String serverList) Split a string in the form of "host:port, host2:port" into a Set of SocketAddress instances.
static String	getStringListFromAddressSet(Set<SocketAddress> servers) Convert server set into server list like "host:port,host2:port"
void	onCommit(String regionName, String path, byte[] remoteBytes) Called by zookeeper clients at the same time when all are prepared for commiting something
void	onDestroy(String regionName) Called when the barrier is unregistered
void	onInit(String regionName, String path, byte[] remoteBytes) Called when the barrier is registered
void	removeCustomListener(BarrierListener listener)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_SERVER_LIST_CHARSET

public static final String DEFAULT_SERVER_LIST_CHARSET

See Also:

Constant Field Values

cache

protected final MemcachedCache cache

cacheName

protected final String cacheName

localCacheServerSet

protected final Set<SocketAddress> localCacheServerSet

Constructor Detail

CacheServerListBarrierListener

public CacheServerListBarrierListener(MemcachedCache cache,
                              Set<SocketAddress> cacheServerSet)

Method Detail

onInit

public void onInit(String regionName,
          String path,
          byte[] remoteBytes)

Description copied from interface: BarrierListener

Called when the barrier is registered

Specified by:

onInit in interface BarrierListener

Parameters:

regionName - current region name

path - current data path

remoteBytes - the data of the zookeeper server. This could be null.

onCommit

public void onCommit(String regionName,
            String path,
            byte[] remoteBytes)

Description copied from interface: BarrierListener

Called by zookeeper clients at the same time when all are prepared for commiting something

Specified by:

onCommit in interface BarrierListener

Parameters:

regionName - current region name

path - current data path

remoteBytes - the changed data of the zookeeper server

onDestroy

public void onDestroy(String regionName)

Description copied from interface: BarrierListener

Called when the barrier is unregistered

Specified by:

onDestroy in interface BarrierListener

Parameters:

regionName - current region name

addCustomListener

public void addCustomListener(BarrierListener listener)

removeCustomListener

public void removeCustomListener(BarrierListener listener)

toString

public String toString()

Overrides:

toString in class Object

getAddressesFromStringList

public static Set<SocketAddress> getAddressesFromStringList(String serverList)

Split a string in the form of "host:port, host2:port" into a Set of SocketAddress instances.

Note that colon-delimited IPv6 is also supported. For example: ::1:11211

Parameters:

serverList - server list in the form of "host:port,host2:port"

Returns:

server set

getStringListFromAddressSet

public static String getStringListFromAddressSet(Set<SocketAddress> servers)

Convert server set into server list like "host:port,host2:port"

Parameters:

servers - InetSocketAddress set

Returns:

server list in the form of "host:port,host2:port"