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Posted to dev@tomcat.apache.org by jean-frederic clere <jf...@fujitsu-siemens.com> on 2002/11/25 11:47:14 UTC

Valve order

Hi,

Just an easy question:

How could I be sure that my valve is the first one in the valve chain?

Cheers

Jean-frederic


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Re: Valve order

Posted by jean-frederic clere <jf...@fujitsu-siemens.com>.
Jeanfrancois Arcand wrote:
> Hi,
> 
> the Digester's rules defined in ContextRuleSet, EngineRuleSet and 
> HostRuleSet invoke:
> 
>        digester.addSetProperties(prefix + "Context/Valve");
>        digester.addSetNext(prefix + "Context/Valve",
>                            "addValve",
>                            "org.apache.catalina.Valve");
> 
> and org.apache.catalina.core.StandardPipeline defines:
>        [...]
>        // Add this Valve to the set associated with this Pipeline
>        synchronized (valves) {
>            Valve results[] = new Valve[valves.length +1];
>            System.arraycopy(valves, 0, results, 0, valves.length);
>            results[valves.length] = valve;
>            valves = results;
>        }
> 
> So the Digester will trap the SAX events based on the order you have 
> defined the Valve and then add it to an array. Remember that Valve are 
> created first for Engine, Host and then Context.
> 
> Hope that help.

Oui merci ;-))

> 
> -- Jeanfrancois
> 
> jean-frederic clere wrote:
> 
>> Hi,
>>
>> Just an easy question:
>>
>> How could I be sure that my valve is the first one in the valve chain?
>>
>> Cheers
>>
>> Jean-frederic
>>
>>
>> -- 
>> To unsubscribe, e-mail:   
>> <ma...@jakarta.apache.org>
>> For additional commands, e-mail: 
>> <ma...@jakarta.apache.org>
>>
>>
> 
> 
> -- 
> To unsubscribe, e-mail:   
> <ma...@jakarta.apache.org>
> For additional commands, e-mail: 
> <ma...@jakarta.apache.org>
> 
> 




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Re: Valve order

Posted by Jeanfrancois Arcand <jf...@apache.org>.
Hi,

the Digester's rules defined in ContextRuleSet, EngineRuleSet and 
HostRuleSet invoke:

        digester.addSetProperties(prefix + "Context/Valve");
        digester.addSetNext(prefix + "Context/Valve",
                            "addValve",
                            "org.apache.catalina.Valve");

and org.apache.catalina.core.StandardPipeline defines:
        [...]
        // Add this Valve to the set associated with this Pipeline
        synchronized (valves) {
            Valve results[] = new Valve[valves.length +1];
            System.arraycopy(valves, 0, results, 0, valves.length);
            results[valves.length] = valve;
            valves = results;
        }

So the Digester will trap the SAX events based on the order you have 
defined the Valve and then add it to an array. Remember that Valve are 
created first for Engine, Host and then Context.

Hope that help.

-- Jeanfrancois

jean-frederic clere wrote:

> Hi,
>
> Just an easy question:
>
> How could I be sure that my valve is the first one in the valve chain?
>
> Cheers
>
> Jean-frederic
>
>
> -- 
> To unsubscribe, e-mail:   
> <ma...@jakarta.apache.org>
> For additional commands, e-mail: 
> <ma...@jakarta.apache.org>
>
>


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