org.talika.tarsis.servlets
Class AbstractServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.talika.tarsis.servlets.AbstractServlet

All Implemented Interfaces:

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

Direct Known Subclasses:

ControllerServlet, ErrorServlet, XmlOutputServlet

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

Base implementation of HttpServlet for all web application servlets of Tarsis MV Framework architecture.

Version:

$Revision: 269 $

Author:

Jose M. Palomar

See Also:

Serialized Form

Constructor Summary

AbstractServlet()

Method Summary

void	destroy() Called by the servlet container to indicate to a servlet that the servlet is being taken out of service.
protected void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Called by the server to allow a servlet to handle a GET request.
protected void	doPost(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Called by the server to allow a servlet to handle a POST request.
protected Context	getContext() Returns the Tarsis context.
protected Logger	getLogger() Returns the Tarsis logger.
java.lang.String	getServletInfo() Returns a short description of the servlet.
void	init(javax.servlet.ServletConfig config) Called by the servlet container to indicate to a servlet that the servlet is being placed into service.
protected abstract void	process(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Processes requests for both HTTP GET and POST methods.

Methods inherited from class javax.servlet.http.HttpServlet

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

Methods inherited from class javax.servlet.GenericServlet

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

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractServlet

public AbstractServlet()

Method Detail

init

public void init(javax.servlet.ServletConfig config)
          throws javax.servlet.ServletException

Called by the servlet container to indicate to a servlet that the servlet is being placed into service.

Specified by:

init in interface javax.servlet.Servlet

Overrides:

init in class javax.servlet.GenericServlet

Parameters:

config - ServletConfig the ServletConfig object that contains configutation information for this servlet.

Throws:

javax.servlet.ServletException - if an exception occurs that interrupts the servlet's normal operation.

See Also:

Servlet.init(javax.servlet.ServletConfig)

destroy

public void destroy()

Called by the servlet container to indicate to a servlet that the servlet is being taken out of service.

Specified by:

destroy in interface javax.servlet.Servlet

Overrides:

destroy in class javax.servlet.GenericServlet

See Also:

Servlet.destroy()

doGet

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

Called by the server to allow a servlet to handle a GET request.

Overrides:

doGet in class javax.servlet.http.HttpServlet

Parameters:

request - servlet object that contains the request the client has made of the servlet.

response - servlet object that contains the response the servlet sends to the client.

Throws:

javax.servlet.ServletException - if the request could not be handled.

java.io.IOException - if an input or output error is detected when the servlet handles request.

doPost

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

Called by the server to allow a servlet to handle a POST request.

Overrides:

doPost in class javax.servlet.http.HttpServlet

Parameters:

request - servlet object that contains the request the client has made of the servlet.

response - servlet object that contains the response the servlet sends to the client.

Throws:

javax.servlet.ServletException - if the request could not be handled.

java.io.IOException - if an input or output error is detected when the servlet handles request.

process

protected abstract void process(javax.servlet.http.HttpServletRequest request,
                                javax.servlet.http.HttpServletResponse response)
                         throws javax.servlet.ServletException,
                                java.io.IOException

Processes requests for both HTTP GET and POST methods.

Parameters:

request - servlet object that contains the request the client has made of the servlet.

response - servlet object that contains the response the servlet sends to the client.

Throws:

javax.servlet.ServletException - if the request could not be handled.

java.io.IOException - if an input or output error is detected when the servlet handles request.

getContext

protected final Context getContext()

Returns the Tarsis context.

Returns:

Context the Tarsis context.

getLogger

protected final Logger getLogger()

Returns the Tarsis logger.

Returns:

Logger the Tarsis logger.

getServletInfo

public final java.lang.String getServletInfo()

Returns a short description of the servlet.

Specified by:

getServletInfo in interface javax.servlet.Servlet

Overrides:

getServletInfo in class javax.servlet.GenericServlet

Returns:

String a short description of the servlet.

See Also:

Servlet.getServletInfo()