Howdy,
Of the three options I'd suggest, valves would be least preferred by me
as they're tomcat-specific:

1. Copy the filter classes and declaration into each webapp where you
need it.

2. Copy the filter classes to $CATALINA_HOME/common/lib or
commons/classes, put the filter declaration in
$CATALINA_HOME/conf/web.xml. Check your logs for errors if this is what
you've already done and it doesn't work.

3. Valves.

Yoav Shapira
Millennium ChemInformatics


>-----Original Message-----
>From: Steven Perry [mailto:notennadaiit@(protected)]
>Sent: Monday, October 06, 2003 1:38 AM
>To: Tomcat Users List
>Subject: Re: Help :- Filters .
>
>Thanks a lot Jacob. I'll take a look at the docs right
>away.
>
>--Steve
>
>--- Jacob Kjome <hoju@(protected):
>>
>> You might want to look into Tomcat-specific Valve's.
>> Valve's are
>> essentially filters, but act at the level of Tomcat
>> instead of at the level
>> of each webapp and can be more powerful than
>> filters. The Tomcat docs
>> describe existing valves. I'd just take a look at
>> one of those valves to
>> get an idea of how to write your own...
>>
>http://jakarta.apache.org/tomcat/tomcat-5.0-doc/config/valve.html
>>
>> Jake
>>
>> At 10:45 PM 10/3/2003 -0700, you wrote:
>>
>> > I have configured a filter to do some preService
>> >processing (i,e, before the request is passed onto
>> the
>> >webapp).
>> >
>> >I, initially, configured it for a single webapp
>> >(modified the relevant web.xml) and it worked fine.
>> >
>> >Now, I want to configure it such that ALL webapps
>> use
>> >this filter. I tried to declare the filter in
>> >%tomcat_home%\conf\web.xml, but this doesn't seem
>> to
>> >work.
>> >
>> >Pls help me. How do I go about setting this filter
>> so
>> >that all webapps use it. (without modifying the
>> >web.xml for each and every webapp).
>> >
>> >Tahnk you very much.
>> >
>> >--Steve.
>> >
>> >__________________________________
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