org.atmosphere.container
Class BlockingIOCometSupport

java.lang.Object
  org.atmosphere.cpr.AsynchronousProcessor
      org.atmosphere.container.BlockingIOCometSupport

All Implemented Interfaces:

CometSupport<AtmosphereResourceImpl>

public class BlockingIOCometSupport
extends AsynchronousProcessor

This class gets used when the AtmosphereServlet fails to autodetect the Servlet Container we are running on.

This CometSupport implementation uses a blocking approach, meaning the request thread will be blocked until another Thread invoke the Broadcaster.broadcast(T)

Author:

Jeanfrancois Arcand

Field Summary

protected static String

LATCH

Fields inherited from class org.atmosphere.cpr.AsynchronousProcessor

aliveRequests, cancelledAction, config, timedoutAction

Constructor Summary

BlockingIOCometSupport(AtmosphereServlet.AtmosphereConfig config)

Method Summary

void	action(AtmosphereResourceImpl r) Process an AtmosphereServlet.Action from an ActionEvent operation like suspend, resume or timed out.
AtmosphereServlet.Action	cancelled(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res) All proprietary Comet based Servlet must invoke the cancelled method when the underlying WebServer detect that the client closed the connection.
AtmosphereServlet.Action	service(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res) Serve the HttpServletRequest and the HttpServletResponse and return the appropriate AtmosphereServlet.Action.
protected void	suspend(AtmosphereServlet.Action action, javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res) Suspend the connection by blocking the current Thread

Methods inherited from class org.atmosphere.cpr.AsynchronousProcessor

destroyResource, getContainerName, init, map, resumed, shutdown, supportSession, supportWebSocket, suspended, timedout

Methods inherited from class java.lang.Object

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

Field Detail

LATCH

protected static final String LATCH

Constructor Detail

BlockingIOCometSupport

public BlockingIOCometSupport(AtmosphereServlet.AtmosphereConfig config)

Method Detail

service

public AtmosphereServlet.Action service(javax.servlet.http.HttpServletRequest req,
                                        javax.servlet.http.HttpServletResponse res)
                                 throws IOException,
                                        javax.servlet.ServletException

Serve the HttpServletRequest and the HttpServletResponse and return the appropriate AtmosphereServlet.Action.

Parameters:

req - the HttpServletRequest

res - the HttpServletResponse

Returns:

the AtmosphereServlet.Action that was manipulated by the AtmosphereHandler

Throws:

IOException

javax.servlet.ServletException

suspend

protected void suspend(AtmosphereServlet.Action action,
                       javax.servlet.http.HttpServletRequest req,
                       javax.servlet.http.HttpServletResponse res)
                throws IOException,
                       javax.servlet.ServletException

Suspend the connection by blocking the current Thread

Parameters:

action - The AtmosphereServlet.Action

req - the HttpServletRequest

res - the HttpServletResponse

Throws:

IOException

javax.servlet.ServletException

cancelled

public AtmosphereServlet.Action cancelled(javax.servlet.http.HttpServletRequest req,
                                          javax.servlet.http.HttpServletResponse res)
                                   throws IOException,
                                          javax.servlet.ServletException

Description copied from class: AsynchronousProcessor

All proprietary Comet based Servlet must invoke the cancelled method when the underlying WebServer detect that the client closed the connection.

Overrides:

cancelled in class AsynchronousProcessor

Parameters:

req - the HttpServletRequest

res - the HttpServletResponse

Returns:

action the Action operation.

Throws:

IOException

javax.servlet.ServletException

action

public void action(AtmosphereResourceImpl r)

Process an AtmosphereServlet.Action from an ActionEvent operation like suspend, resume or timed out.

Specified by:

action in interface CometSupport<AtmosphereResourceImpl>

Overrides:

action in class AsynchronousProcessor

Parameters:

r - An instance of AtmosphereServlet.Action