org.atmosphere.samples.chat
Class AppEngineAtmosphereHandler

java.lang.Object
  org.atmosphere.samples.chat.AppEngineAtmosphereHandler

All Implemented Interfaces:

AtmosphereHandler<javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse>

public class AppEngineAtmosphereHandler
extends Object
implements AtmosphereHandler<javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse>

Simple AtmosphereHandler that implement the logic to build a Chat application.

Author:

Jeanfrancois Arcand

Constructor Summary

AppEngineAtmosphereHandler()

Method Summary

void	onRequest(AtmosphereResource<javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse> event) When the AtmosphereServlet detect an HttpServletRequest maps to this AtmosphereHandler, the AtmosphereHandler.onRequest(org.atmosphere.cpr.AtmosphereResource) gets invoked and the response will be suspended depending on the http method, e.g.
void	onStateChange(AtmosphereResourceEvent<javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse> event) Invoked when a call to Broadcaster.broadcast(java.lang.Object) is issued or when the response times out, e.g whne the value AtmosphereResource.suspend(long) expires.

Methods inherited from class java.lang.Object

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

Constructor Detail

AppEngineAtmosphereHandler

public AppEngineAtmosphereHandler()

Method Detail

onRequest

public void onRequest(AtmosphereResource<javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse> event)
               throws IOException

When the AtmosphereServlet detect an HttpServletRequest maps to this AtmosphereHandler, the AtmosphereHandler.onRequest(org.atmosphere.cpr.AtmosphereResource) gets invoked and the response will be suspended depending on the http method, e.g. GET will suspend the connection, POST will broadcast chat message to suspended connection.

Specified by:

onRequest in interface AtmosphereHandler<javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse>

Parameters:

event - An AtmosphereResource

Throws:

IOException

onStateChange

public void onStateChange(AtmosphereResourceEvent<javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse> event)
                   throws IOException

Invoked when a call to Broadcaster.broadcast(java.lang.Object) is issued or when the response times out, e.g whne the value AtmosphereResource.suspend(long) expires.

Specified by:

onStateChange in interface AtmosphereHandler<javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse>

Parameters:

event - An AtmosphereResourceEvent

Throws:

IOException