com.commsen.jwebthumb
Class WebThumbNotificationServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          com.commsen.jwebthumb.WebThumbNotificationServlet

All Implemented Interfaces:

java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public abstract class WebThumbNotificationServlet
extends javax.servlet.http.HttpServlet

An abstract sevlet responsible for receiving notifications from webthumb. All extending classes need to implement processThumb(String, String) method in order to react on received notification.

This servlet will handle notifications via both GET and POST methods. To prevent fake calls to your servlet set key parameter to some hard to guess value:

 <init-param>
   <param-name>key</param-name>
   <param-value>my_hard_to_guess_secure_key</param-value>
 </init-param>
 

and make sure to provide the parameter in WebThumbRequest.setNotify(String) method:

 webThumbRequest.setNotify("http://YOUR.WEB.SITE/WebThumbNotifications?key=my_hard_to_guess_secure_key");
 

Author:

Milen Dyankov

See Also:

http://webthumb.bluga.net/apidoc#notify, Serialized Form

Constructor Summary

WebThumbNotificationServlet()

Method Summary

protected void	doGet(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
protected void	doPost(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
void	init()
protected void	processRequest(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
abstract void	processThumb(java.lang.String id, java.lang.String url) Method called when notification is received.

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPut, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

Methods inherited from class java.lang.Object

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

Constructor Detail

WebThumbNotificationServlet

public WebThumbNotificationServlet()

Method Detail

init

public void init()
          throws javax.servlet.ServletException

Overrides:

init in class javax.servlet.GenericServlet

Throws:

javax.servlet.ServletException

doGet

protected void doGet(javax.servlet.http.HttpServletRequest req,
                     javax.servlet.http.HttpServletResponse resp)
              throws javax.servlet.ServletException,
                     java.io.IOException

Overrides:

doGet in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

java.io.IOException

doPost

protected void doPost(javax.servlet.http.HttpServletRequest req,
                      javax.servlet.http.HttpServletResponse resp)
               throws javax.servlet.ServletException,
                      java.io.IOException

Overrides:

doPost in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

java.io.IOException

processRequest

protected void processRequest(javax.servlet.http.HttpServletRequest req,
                              javax.servlet.http.HttpServletResponse resp)

processThumb

public abstract void processThumb(java.lang.String id,
                                  java.lang.String url)

Method called when notification is received. Extending classes should implement this method and handle notifications as desired.

Parameters:

id - the job identifier

url - the url of the requested site