org.mycore.frontend.servlets
Class MCRUserServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.mycore.frontend.servlets.MCRServlet
              org.mycore.frontend.servlets.MCRUserServlet

All Implemented Interfaces:

Serializable, Servlet, ServletConfig

public class MCRUserServlet
extends MCRServlet

This servlet provides a web interface for the user management of the mycore system.

Version:

$Revision: 1.1 $ $Date: 2008/04/11 09:09:38 $

Author:

Detlev Degenhardt

See Also:

Serialized Form

Field Summary

Fields inherited from class org.mycore.frontend.servlets.MCRServlet

BASE_URL_ATTRIBUTE, trustedProxies

Constructor Summary

MCRUserServlet()

Method Summary

protected void	changePwd(MCRServletJob job) This method handles the "ChangePwd" (change password) mode.
protected Document	createJdomDocBase(MCRServletJob job) creates a jdom document with elements needed by all modes this servlet can run.
protected void	createPwdDialog(MCRServletJob job) This method handles the "CreatePwdDialog" mode.
void	doGetPost(MCRServletJob job) This method overrides doGetPost of MCRServlet and handles HTTP requests.
protected void	doLayout(MCRServletJob job, String style, Document jdomDoc) Gather information about the XML document to be shown and the corresponding XSLT stylesheet and redirect the request to the LayoutServlet
void	init()
protected void	selectTask(MCRServletJob job) This method handles the "Select" mode.
protected void	showUser(MCRServletJob job) This method handles the "ShowUser" mode.

Methods inherited from class org.mycore.frontend.servlets.MCRServlet

buildRedirectURL, doGet, doGet, doPost, doPost, generateActiveLinkErrorpage, generateErrorPage, getBaseURL, getLastModified, getLayoutService, getProperty, getRemoteAddr, getServletBaseURL, getSession, handleException, initTrustedProxies, render, reportException, think

Methods inherited from class javax.servlet.http.HttpServlet

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

Methods inherited from class javax.servlet.GenericServlet

destroy, 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

MCRUserServlet

public MCRUserServlet()

Method Detail

init

public void init()
          throws ServletException

Overrides:

init in class MCRServlet

Throws:

ServletException

doGetPost

public void doGetPost(MCRServletJob job)
               throws IOException

This method overrides doGetPost of MCRServlet and handles HTTP requests. Depending on the request parameter "mode" this method delegates the request to different methods of this servlet.

Overrides:

doGetPost in class MCRServlet

Parameters:

job - The MCRServletJob instance

Throws:

IOException - for java I/O errors.

ServletException - for errors from the servlet engine.

changePwd

protected void changePwd(MCRServletJob job)
                  throws IOException

This method handles the "ChangePwd" (change password) mode. The change password dialog of the presentation layer must provide three passwords in the http request: The new password, an repetition of the new password and (for security reasons) the old password again. This method checks if the old password is correct and if both new passwords are equal. If so, the password is changed and the control flow is routed to the presentation of possible task for the current user. If not, error messages are displayed.

Parameters:

job - The MCRServletJob instance

Throws:

IOException - for java I/O errors.

ServletException - for errors from the servlet engine.

createPwdDialog

protected void createPwdDialog(MCRServletJob job)
                        throws IOException

This method handles the "CreatePwdDialog" mode. It is nothing more than choosing the right stylesheet.

Parameters:

job - The MCRServletJob instance

Throws:

IOException - for java I/O errors.

ServletException - for errors from the servlet engine.

selectTask

protected void selectTask(MCRServletJob job)
                   throws IOException

This method handles the "Select" mode. Depending on the privileges of the current user a list of possible tasks is collected as an XML representation and forwarded to the LayoutServlet.

Parameters:

job - The MCRServletJob instance

Throws:

IOException - for java I/O errors.

ServletException - for errors from the servlet engine.

showUser

protected void showUser(MCRServletJob job)
                 throws IOException

This method handles the "ShowUser" mode. The current user is retrieved from the user manager and its XML representation is forwarded to the LayoutServlet.

Parameters:

job - The MCRServletJob instance

Throws:

IOException - for java I/O errors.

ServletException - for errors from the servlet engine.

createJdomDocBase

protected Document createJdomDocBase(MCRServletJob job)

creates a jdom document with elements needed by all modes this servlet can run.

Parameters:

job - The MCRServletJob instance

Returns:

jdom document

doLayout

protected void doLayout(MCRServletJob job,
                        String style,
                        Document jdomDoc)
                 throws IOException

Gather information about the XML document to be shown and the corresponding XSLT stylesheet and redirect the request to the LayoutServlet

Parameters:

job - The MCRServletJob instance

style - String value to select the correct XSL stylesheet

jdomDoc - The XML representation to be presented by the LayoutServlet

Throws:

ServletException - for errors from the servlet engine.

IOException - for java I/O errors.