org.fireweb

Class FireWebAsyncRequestProcessor

java.lang.Object

org.fireweb.FireWebAsyncRequestProcessor

All Implemented Interfaces:

java.lang.Runnable, java.util.EventListener, javax.servlet.AsyncListener

public class FireWebAsyncRequestProcessor
extends java.lang.Object
implements java.lang.Runnable, javax.servlet.AsyncListener

Request processor thread. Provides JavaScript engine loading from code resources.

Version:

2.2

Author:

Piotr Ptak

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FireWebAsyncRequestProcessor(FireWebServlet servlet, javax.servlet.AsyncContext asyncContext) Main constructor of async thread

Method Summary

Modifier and Type	Method and Description
protected void	drawView() Is called after event process.
protected javax.servlet.AsyncContext	getAsyncContext()
protected FireWebApplication	loadApplication() Retrieve from session or create application instance.
void	onComplete(javax.servlet.AsyncEvent ctx)
void	onError(javax.servlet.AsyncEvent ctx)
void	onStartAsync(javax.servlet.AsyncEvent ctx)
void	onTimeout(javax.servlet.AsyncEvent ctx)
void	run()

Methods inherited from class java.lang.Object

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

Constructor Detail

FireWebAsyncRequestProcessor

protected FireWebAsyncRequestProcessor(FireWebServlet servlet,
                                       javax.servlet.AsyncContext asyncContext)

Main constructor of async thread

Parameters:

servlet - Servlet instance from context

asyncContext - Asynchronous context of request

Method Detail

onComplete

public void onComplete(javax.servlet.AsyncEvent ctx)
                throws java.io.IOException

Specified by:

onComplete in interface javax.servlet.AsyncListener

Throws:

java.io.IOException

onError

public void onError(javax.servlet.AsyncEvent ctx)
             throws java.io.IOException

Specified by:

onError in interface javax.servlet.AsyncListener

Throws:

java.io.IOException

onStartAsync

public void onStartAsync(javax.servlet.AsyncEvent ctx)
                  throws java.io.IOException

Specified by:

onStartAsync in interface javax.servlet.AsyncListener

Throws:

java.io.IOException

onTimeout

public void onTimeout(javax.servlet.AsyncEvent ctx)
               throws java.io.IOException

Specified by:

onTimeout in interface javax.servlet.AsyncListener

Throws:

java.io.IOException

loadApplication

protected FireWebApplication loadApplication()
                                      throws java.lang.InstantiationException,
                                             java.lang.IllegalAccessException

Retrieve from session or create application instance. Application object is stored at session with name: HTTP_SESSION_PREFIX + getServletName

Returns:

Retrieved or created application object.

Throws:

java.lang.InstantiationException - on construct application instance

java.lang.IllegalAccessException - on construct application instance

drawView

protected void drawView()
                 throws java.io.IOException

Is called after event process. Writes any view changes to browser. If was call sendRedirest it break drawing process. This prevent to lost object changes between redirections. This prevent to lost object changes between redirections.

Throws:

java.io.IOException - sending data to browser

getAsyncContext

protected javax.servlet.AsyncContext getAsyncContext()

Returns:

the asyncContext

run

public void run()

Specified by:

run in interface java.lang.Runnable