org.zkoss.zk.au.http
Class AuRedirect

java.lang.Object
  org.zkoss.zk.au.http.AuRedirect

All Implemented Interfaces:

AuExtension, WebAppInit

public class AuRedirect
extends java.lang.Object
implements AuExtension, WebAppInit

The AU processor to handle the HTTP redirect via status 302.

Since:

7.0.0

Author:

Vincent, Robert Wenzel

Field Summary

static java.lang.String	REDIRECT_URL_PARAMETER
static java.lang.String	URI_PREFIX

Constructor Summary

AuRedirect()

Method Summary

void	destroy() Destroys the AU extension.
void	init(DHtmlUpdateServlet servlet) Initializes the AU extension.
void	init(WebApp wapp) Called when a ZK application is created and initialized.
void	service(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, java.lang.String pi) Called by ZK to process the AU request.

Methods inherited from class java.lang.Object

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

Field Detail

URI_PREFIX

public static final java.lang.String URI_PREFIX

See Also:

Constant Field Values

REDIRECT_URL_PARAMETER

public static final java.lang.String REDIRECT_URL_PARAMETER

See Also:

Constant Field Values

Constructor Detail

AuRedirect

public AuRedirect()

Method Detail

init

public void init(WebApp wapp)
          throws java.lang.Exception

Description copied from interface: WebAppInit

Called when a ZK application is created and initialized.

You could retrieve the servlet context by WebApp.getServletContext()

Specified by:

init in interface WebAppInit

Throws:

java.lang.Exception

init

public void init(DHtmlUpdateServlet servlet)
          throws javax.servlet.ServletException

Description copied from interface: AuExtension

Initializes the AU extension. It is called when an extension is added to DHtmlUpdateServlet.

Specified by:

init in interface AuExtension

Throws:

javax.servlet.ServletException

destroy

public void destroy()

Description copied from interface: AuExtension

Destroys the AU extension. It is called when an extension is removed from DHtmlUpdateServlet, or when DHtmlUpdateServlet is being destroyed.

Specified by:

destroy in interface AuExtension

service

public void service(javax.servlet.http.HttpServletRequest request,
                    javax.servlet.http.HttpServletResponse response,
                    java.lang.String pi)
             throws javax.servlet.ServletException,
                    java.io.IOException

Description copied from interface: AuExtension

Called by ZK to process the AU request.

To retrieve the http session, use HttpServletRequest.getSession(). To retrieve the ZK session, use Sessions.getCurrent(boolean).

Specified by:

service in interface AuExtension

Parameters:

request - the request (never null).

response - the response (never null).

pi - the path info. It includes the prefix when the Au processor is associated (see DHtmlUpdateServlet.addAuExtension(org.zkoss.zk.ui.WebApp, java.lang.String, org.zkoss.zk.au.http.AuExtension). For example, if an AU processor is associated with "/upload", then pi must start with "/upload". Note: it might end with other string depending on the URI you generated to the client.

Throws:

javax.servlet.ServletException

java.io.IOException