[ANNOUNCE] Servlet Utilities 0.1

[Tim Funk]

I threw together a few filter utilities. Everything (including source) can be 
found here:

http://funkman.home.comcast.net/
Utilities of interest:
*TimerFilter* - A Filter that lets you spew out how long it took to serve a page.
*ErrorFilter* - Spit or an error code and a file or message.
*NoCacheFilter* - Set all the appropriate no cache headers
EL Wrapper - Make it easy to use EL expressions in servlets or dynamically 
use EL expressions in JSP's.

All 3 filters extend a class called ConditionFilter. ConditionFilter allows 
you to decide when the Filter will execute. It's default implementation 
allows you to use an EL expression. For example:
************
<filter>
  <filter-name>ErrorFilter</filter-name>
  <filter-class>net.funkman.servletutil.filter.ErrorFilter</filter-class>
    <init-param>
      <param-name>errorMessage</param-name>
      <param-value> <![CDATA[<b>THBBBBBBBTTTTT!</b>]]> </param-value>
    </init-param>
    <init-param>
      <param-name>errorCode</param-name>
      <param-value>400</param-value>
    </init-param>
<!-- Show error message from 2 - 4 am -->
  <init-param>
    <param-name>condition</param-name>
    <param-value>
       ${now.HOUR_OF_DAY == 2 or now.HOUR_OF_DAY == 3}
    </param-value>
  </init-param>
</filter>
<filter-mapping>
  <filter-name>ErrorFilter</filter-name>
  <url-pattern>*.jsp</url-pattern>
</filter-mapping>
************

Have fun.
-Tim
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