chapter7
Class UserServletFilter

java.lang.Object
  extended by chapter7.UserServletFilter
All Implemented Interfaces:
javax.servlet.Filter

public class UserServletFilter
extends Object
implements javax.servlet.Filter

A simple servlet filter that puts the username found either in the Principle or as a session attribute in the MDC. The value is removed from the MDC once the request has been fully processed. To be used, add the following lines to a web.xml file User Servlet Filter chapter7.UserServletFilter User Servlet Filter /*

Author:
Sébastien Pennec

Constructor Summary
UserServletFilter()
           
 
Method Summary
 void destroy()
           
 void doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain)
           
 void init(javax.servlet.FilterConfig arg0)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

UserServletFilter

public UserServletFilter()
Method Detail

destroy

public void destroy()
Specified by:
destroy in interface javax.servlet.Filter

doFilter

public void doFilter(javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response,
                     javax.servlet.FilterChain chain)
              throws IOException,
                     javax.servlet.ServletException
Specified by:
doFilter in interface javax.servlet.Filter
Throws:
IOException
javax.servlet.ServletException

init

public void init(javax.servlet.FilterConfig arg0)
          throws javax.servlet.ServletException
Specified by:
init in interface javax.servlet.Filter
Throws:
javax.servlet.ServletException


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