com.sun.grizzly.filter
Class MessageDispatcher

java.lang.Object
  com.sun.grizzly.filter.MessageDispatcher

All Implemented Interfaces:

ProtocolFilter

public abstract class MessageDispatcher
extends java.lang.Object
implements ProtocolFilter

Filter which dispatches parsed fully constructed Messages.

This could be a plugin point to write business logic which handles requests made by some Endpoit.

Note: Messages are taken from Grizzly WorkerThread and dispatched to a new Thread Instance of an configurable ThreadPool. This enables the new Threads for example to be put in blocking mode and not hurting the Grizzly Selection loop.

Version:

1.0

Author:

John Vieten 22.06.2008

Field Summary

static java.lang.String	needMoreDataMessageMapKey
protected int	threadCounter
protected java.lang.ThreadGroup	threadGroup

Fields inherited from interface com.sun.grizzly.ProtocolFilter

SUCCESSFUL_READ

Constructor Summary

MessageDispatcher()

Method Summary

boolean	execute(Context ctx)
abstract void	onMessageError(MessageError msg, Context ctx)
abstract void	onRequestMessage(RequestMessage msg, Context ctx) Pluginpoint to handle an Message received from some Endpoint
boolean	postExecute(Context ctx)
void	setExecutorService(java.util.concurrent.ExecutorService executorService)
void	stop()

Methods inherited from class java.lang.Object

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

Field Detail

needMoreDataMessageMapKey

public static final java.lang.String needMoreDataMessageMapKey

See Also:

Constant Field Values

threadCounter

protected int threadCounter

threadGroup

protected final java.lang.ThreadGroup threadGroup

Constructor Detail

MessageDispatcher

public MessageDispatcher()

Method Detail

setExecutorService

public void setExecutorService(java.util.concurrent.ExecutorService executorService)

postExecute

public boolean postExecute(Context ctx)
                    throws java.io.IOException

Specified by:

postExecute in interface ProtocolFilter

Throws:

java.io.IOException

stop

public void stop()

execute

public boolean execute(Context ctx)
                throws java.io.IOException

Specified by:

execute in interface ProtocolFilter

Throws:

java.io.IOException

onRequestMessage

public abstract void onRequestMessage(RequestMessage msg,
                                      Context ctx)

Pluginpoint to handle an Message received from some Endpoint

Parameters:

msg - RequestMessage the message received from an Endpoint

ctx - MessageContext Simple API for writing,quering the connection.

onMessageError

public abstract void onMessageError(MessageError msg,
                                    Context ctx)