ealet
Class Ealet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          ealet.Ealet

All Implemented Interfaces:

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

public class Ealet
extends javax.servlet.http.HttpServlet

This Servlet is a front-end to Ealet web application. It processes the included form and generates Ethiopian calendar.

It entirely depends on several helper classes that are responsible from producing the calendar to generating HTML document.

See Also:

Serialized Form

Constructor Summary

Ealet()

Method Summary

protected void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Responsible in processing client's request to produce Ethiopian calendar
protected void	doPost(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) No need to handle HTTP POST method, so task is forwared to doGet() method.
java.lang.String	getServletInfo() Returns a short description of the servlet.
void	init(javax.servlet.ServletConfig config) Initialization when the Servlet is loaded.

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, getServletName, init, log, log

Methods inherited from class java.lang.Object

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

Constructor Detail

Ealet

public Ealet()

Method Detail

init

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

Initialization when the Servlet is loaded.

Overriding method obtains the sevelet context and adds a key-value to the System property so that the TransformerFactoryImpl can be found. This was needed because there was a name change in the library.

Specified by:

init in interface javax.servlet.Servlet

Overrides:

init in class javax.servlet.GenericServlet

Parameters:

config - Servlet related configuration class

Throws:

javax.servlet.ServletException

doGet

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

Responsible in processing client's request to produce Ethiopian calendar

• Fetches parameter values and determines what action to take
• Generates Ethiopian calendar in XML format
• Transforms the calendar from XML to HTML
• Finally, serves the calendar in HTML form to the client

Overrides:

doGet in class javax.servlet.http.HttpServlet

Parameters:

request - servlet request to be served

response - servlet response return traffic

Throws:

javax.servlet.ServletException

java.io.IOException

doPost

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

No need to handle HTTP POST method, so task is forwared to doGet() method.

Overrides:

doPost in class javax.servlet.http.HttpServlet

Parameters:

request - servlet request

response - servlet response

Throws:

javax.servlet.ServletException

java.io.IOException

getServletInfo

public 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