com.xmlserv.main
Class XMLServ

java.lang.Object
  |
  +--javax.servlet.GenericServlet
        |
        +--javax.servlet.http.HttpServlet
              |
              +--com.xmlserv.main.XMLServ

All Implemented Interfaces:

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

public class XMLServ

extends javax.servlet.http.HttpServlet

The main class of this framework. This handles the client communication, calls Backend methods and processes XML output applying the appropriate stylesheet.
Much of the work is delegated to helper classes:

• BackendRepository -- The container holding all configured backends, providing URL mapping.
• BackendHandle -- Metainformation on a Backend, mainly things configured in WEB-INF/config.xml (SecurityManager, XSL mapping etc.).
• SecurityManager -- The subclasses of com.xmlserv.security.SecurityManager provide authentication and authorization through a generic interface.

JAXP API is used for XSL Transformations.

Version:

$Id: XMLServ.java,v 1.36 2002/12/18 20:44:32 muecke Exp $

Author:

Wolfram Saringer

See Also:

BackendRepository, BackendHandle, SecurityManager, Serialized Form

Constructor Summary

XMLServ()

Method Summary

void	destroy() Free Resources.
void	doGet(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res)
void	doPost(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res) doPost redirects to doGet, making both methods equivalent.
protected javax.xml.transform.Source	errorPage(java.lang.String msg)
void	init() Servlet initialization: Load and process config.xml, creating a BackendRepository.

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, 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

XMLServ

public XMLServ()

Method Detail

init

public void init()
          throws javax.servlet.ServletException

Servlet initialization: Load and process config.xml, creating a BackendRepository.

Overrides:

init in class javax.servlet.GenericServlet

doPost

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

doPost redirects to doGet, making both methods equivalent.

Overrides:

doPost in class javax.servlet.http.HttpServlet

doGet

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

Overrides:

doGet in class javax.servlet.http.HttpServlet

destroy

public void destroy()

Free Resources.

Overrides:

destroy in class javax.servlet.GenericServlet

errorPage

protected javax.xml.transform.Source errorPage(java.lang.String msg)
                                        throws javax.servlet.ServletException,
                                               java.io.IOException