org.torweg.pulse.service
Class Servlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.torweg.pulse.service.Servlet

All Implemented Interfaces:

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

public class Servlet
extends javax.servlet.http.HttpServlet

The controller servlet of the pulse container.

The Servlet controls the actual processing of an HTTP request sent to the pulse container.

1. Parses the HttpServletRequest into a ServiceRequest
2. Checks the If-None-Match header, if a 304 Not Modified response can be sent
3. Invokes all Bundles according to the current Command ( ServiceRequest.getCommand(), Invoker.execute(ServiceRequest, ResultSet) ) and collects the results
4. Processes all Events collected by the EventManager during bundle invocation ( ServiceRequest.getEventManager() )
5. Generates the output via XSLT, if the EventManager does not contain an output event

Version:

$Revision: 1871 $

Author:

Thomas Weber

See Also:

Serialized Form

Constructor Summary

Servlet()

Method Summary

void	destroy() executes shutdown tasks.
void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) captures HTTP requests sent via GET.
void	doPost(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) captures HTTP requests sent via POST.
void	init() initialises the servlet's basic fields and starts up core components.

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, 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

Servlet

public Servlet()

Method Detail

init

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

initialises the servlet's basic fields and starts up core components.

Overrides:

init in class javax.servlet.GenericServlet

Throws:

javax.servlet.ServletException - on errors during the start up process

destroy

public final void destroy()

executes shutdown tasks.

Specified by:

destroy in interface javax.servlet.Servlet

Overrides:

destroy in class javax.servlet.GenericServlet

doPost

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

captures HTTP requests sent via POST.

Overrides:

doPost in class javax.servlet.http.HttpServlet

Parameters:

request - the HTTP request sent to the servlet

response - the HTTP response returned by the servlet

Throws:

java.io.IOException - on errors while writing to the response

doGet

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

captures HTTP requests sent via GET.

Overrides:

doGet in class javax.servlet.http.HttpServlet

Parameters:

request - the HTTP request sent to the servlet

response - the HTTP response returned by the servlet

Throws:

java.io.IOException - on errors while writing to the response