[forge-dev] Scaffolding and class loading

[Luca Masini]

I used another approach, I overrided the

lookupClass( String className, ClassLoader classLoader )

in BaseConfigReader to lookup also in the current class ClassLoader, and
this solved the problem (the Scaffolding class is always into the module
ClassLoader).

But I would like to have a suggestion about the best approach, any
suggestion ?


2012/12/6 Lincoln Baxter, III <lincolnbaxter at gmail.com>

> Well... we know this is a problem in Forge 1, which is one of the big
> reasons we are working on Forge 2. But you might want to take a look at the
> Spring MVC scaffold, which had to overcome this same issue:
>
>
> https://github.com/forge/plugin-spring-mvc/blob/master/src/main/java/org/jboss/forge/scaffold/spring/SpringScaffold.java#L208
>
> Note the special template resolver.
>
> ~Lincoln
>
> PS. Sorry for the late reply.
>
>
> On Tue, Dec 4, 2012 at 9:04 AM, Luca Masini <luca.masini at gmail.com> wrote:
>
>> Ok, I've found the problem, is with the "SimpleResourceResolver" that
>> tries to locate resources in a context where those are not available.
>>
>> This works fine with the faces scaffold because it is part of the forge
>> standard modules (I think.....).
>>
>> Any comments or better explanation ??
>>
>>
>>
>> 2012/12/4 Luca Masini <luca.masini at gmail.com>
>>
>>> Hi guys, I'm facing a strange problem. Inside a facet which is a
>>> scaffold provider I need to load a resource for MetaWidget. I can see
>>> printing this from the method that needs the resource
>>>
>>>
>>> this.getClass().getClassLoader().getResource("scaffold/errai/metawidget-formbean.xml")
>>>
>>> that the file is available:
>>>
>>>
>>> file:/Users/lucamasini/.forge/plugins/org/jboss/forge/forge-scaffold-errai/1.0.6-SNAPSHOT-e0a249f3-6fe7-4ea1-8fd9-680f8e422af4/forge-scaffold-errai.jar!/scaffold/errai/metawidget-formbean.xml
>>>
>>> but inside the SimpleResourceResolver neither:
>>>
>>> ClassLoader loaderContext =
>>> Thread.currentThread().getContextClassLoader();
>>>
>>> or:
>>>
>>> InputStream stream = getClass().getResourceAsStream( resource );
>>>
>>> can find the resource because the "forge-scaffold-errai.jar" is not one
>>> of the JAR used by the current classloader (which is a JBoss's
>>> ModuleClassloader).
>>>
>>> The current implementation of scaffolding for faces works because is
>>> inside the forge itself, but I think we have some problems using it in an
>>> external plugin.
>>>
>>> Do you think I need to declare it in some kind of manifest ??
>>>
>>> Thank you
>>> L.
>>>
>>> --
>>> ****************************************
>>> http://www.lucamasini.net
>>> http://twitter.com/lmasini
>>> http://www.linkedin.com/pub/luca-masini/7/10/2b9
>>> ****************************************
>>>
>>
>>
>>
>> --
>> ****************************************
>> http://www.lucamasini.net
>> http://twitter.com/lmasini
>> http://www.linkedin.com/pub/luca-masini/7/10/2b9
>> ****************************************
>>
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>>
>>
>
>
> --
> Lincoln Baxter, III
> http://ocpsoft.org
> "Simpler is better."
>
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> forge-dev at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/forge-dev
>
>


-- 
****************************************
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http://www.linkedin.com/pub/luca-masini/7/10/2b9
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