Hello

Take a look at the service 'Alias'.

There is also a thread about this : 
http://markmail.org/search/?q=tapestry+type%3Ausers+list%3Aorg.apache.tapestry.users+Can+you+try+with+something+like+this%2C+Override+and+alias#query:tapestry%20type%3Ausers%20list%3Aorg.apache.tapestry.users%20Can%20you%20try%20with%20something%20like%20this%2C%20Override%20and%20alias+page:1+mid:bd4xfcmup7cdlbes+state:results

Christophe.

-----Message d'origine-----
De : news [mailto:[EMAIL PROTECTED] De la part de Neeme Praks
Envoyé : mardi 10 juin 2008 10:45
À : [email protected]
Objet : [T5] overriding application-wide message catalog location?

Hi all,

Tapestry5 is shaping up quite nicely, great work!
As a result, I have chosen Tapestry 5 as the framework to build a new
project on :-)

Inevitably, there will be questions and here is mine:
   Is there some way to override application-wide message catalog
location? The default is WEB-INF/<appname>.properties

Why would I want to do that? Well, historically we have used Spring
Web-MVC for our applications and there we stored the application message
catalog in WEB-INF/messages/messages.properties and I would like to keep
that location unchanged. Easier for our translators.

As far as I can see in the source code, this location is pretty much
hardcoded? org.apache.tapestry.services.TapestryModule has:

     public ComponentMessagesSource buildComponentMessagesSource(
             @ContextProvider
             AssetFactory contextAssetFactory,

             @Inject
             @Value("WEB-INF/${tapestry.app-name}.properties")
             String appCatalog)
     {
         ComponentMessagesSourceImpl service = new
ComponentMessagesSourceImpl(contextAssetFactory
                 .getRootResource(), appCatalog);

         updateListenerHub.addUpdateListener(service);

         return service;
     }

As this location is hardcoded, I guess I have two options:
* patch Tapestry to make it configurable
* override the definition of ComponentMessagesSource with my own
implementation (or just my own configuration)

I guess the first option is a long-term solution and second is a
short-term solution?

I'm willing to investigate the possibility for patching Tapestry (any
pointers are very welcome), but at the same time, I would also like to
implement the short-term solution to solve the issue at hand.

While investigating the possibility to override, I came across the
following.
On page http://tapestry.apache.org/tapestry5/tapestry-ioc/module.html
it is written that:
"Service ids must be unique; if another module contributes a service
with the id "Indexer" (or any case variation thereof) a runtime
exception will occur when the Registry is created."

Does this mean that I cannot override the default
ComponentMessagesSource service implementation?

I hope I misunderstood something :-)

And, while I'm already consuming airtime here: how can I override the
default tapestry configuration mechanism with my own? So instead of
taking parameters from web.xml, I can implement my own way of loading
them (e.g. from properties file, from DB, etc).

Rgds,
Neeme


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