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From Martin Cooper <mfncoo...@gmail.com>
Subject Re: Chain : [Digester] Empty stack (returning null)
Date Tue, 29 Mar 2005 22:30:58 GMT
On Tue, 29 Mar 2005 18:33:49 -0300, Vinicius Caldeira Carvalho
<vinicius.carvalho@squadra.com.br> wrote:
> Hello there! I'm trying to use commons chains on my project. Here's a
> piece of my web.xml:
> 
> <context-param>
>   <param-name>org.apache.commons.chain.CONFIG_CLASS_RESOURCE</param-name>
>   <param-value>catalog.xml</param-value>
> </context-param>
> 
> <listener>
> 
> <listener-class>org.apache.commons.chain.web.ChainListener</listener-class>
> </listener>
> 
> My catalog.xml is located inside web-inf/classes
> 
> here's how it looks like:
> 
> <chains>

This is the problem. There is no <chains> element; you want <catalog> instead.

(It seems there is a bug in the cookbook where it uses <chains>. I
will fix that.)

--
Martin Cooper


>     <chain name="validarRegraCompraPlanoCobertura">
>         <command
> className="com.araujo.convenios.view.administrarregracompra.action.commands.InitSalvarRegraCompraCommand"/>
>         <command
> className="com.araujo.convenios.view.administrarregracompra.action.commands.RemoveItensCommand"/>
> 
>         <command
> className="com.araujo.convenios.view.administrarregracompra.action.commands.AssembleUpdateRegraCompraCommand"/>
>     </chain>
> </chains>
> 
> Ok. So I start my app on jboss 4.0.1. It outputs:
> 
> 18:26:18,470 INFO  [ChainListener] Initializing chain listener
> 18:26:18,720 WARN  [Digester] Empty stack (returning null)
> 
> Well, so I guess It wasn't able to load the catalog right? When trying
> to load the catalog from webcontext it returns null. Any ideas please?
> 
> Best regards
> 
> Vinicius
> 
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