examples.guestbook
Class GuestbookServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          examples.guestbook.GuestbookServlet

All Implemented Interfaces:

Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class GuestbookServlet

extends javax.servlet.http.HttpServlet

This servlets grants access to the GuestbookServiceby means of a web-browser. This classs acts as a servlet running within the SeMoA platform and hence acts bridges between the SeMoA service an the web-browser. The implementation is quite simple. This class overrides {@link javax.servlet.http.HttpServlet#service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse) which is called to generate the output for the web-client. The actual method looks up the guestbook service in the agent server environment, reads the data from it and passes them as HTML stream to web-client. That's it - easy, isn't it?

Version:

$Id: GuestbookServlet.java 1913 2007-08-08 02:41:53Z jpeters $

Author:

U. Pinsdorf

See Also:

HttpServer, HttpServlet, Environment, GuestbookService, Serialized Form

Field Summary

private Logger

LOG The logger instance for writing a log file.

Fields inherited from class javax.servlet.http.HttpServlet

Fields inherited from class javax.servlet.GenericServlet

Constructor Summary

GuestbookServlet()

Method Summary

void	service(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res)

Methods inherited from class javax.servlet.http.HttpServlet

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

Methods inherited from class javax.servlet.GenericServlet

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

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private final Logger LOG

The logger instance for writing a log file. For the logger's configuration refer to file etc/semoa.logging.

Constructor Detail

GuestbookServlet

public GuestbookServlet()

Method Detail

service

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

Throws:

javax.servlet.ServletException

IOException