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From "Nathan Bubna" <nbu...@gmail.com>
Subject Re: How to use Velocity inside JBOSS
Date Thu, 06 Mar 2008 20:21:12 GMT
Using the FileResourceLoader in a webapp is a major pain and not very
portable.  You would be much better off using the
ClasspathResourceLoader or VelocityTools' WebappResourceLoader.

On Wed, Mar 5, 2008 at 8:33 AM, Cristi Cioriia
<cristi-cioriia@criticalsoftware.com> wrote:
> Hi,
>  I have been trying to use Velocity in my own project, to generate some
>  content. Unfortunately, I haven't been able to make everything work by
>  myself and since I couldn't find any help on the net, I thought about
>  giving a try here.
>  So here it's what I'm trying to do: I created a helper class that uses
>  Velocity to generate some content and I use this helper class inside an
>  EJB, that is hosted in JBOSS. The way I did it, was to place Velocity
>  in my classpath  and use it directly in my helper class(TemplateUtils)
>  like this:
>
>     VelocityEngine velocityEngine = new VelocityEngine();
>      velocityEngine
>     .setProperty(VelocityEngine.FILE_RESOURCE_LOADER_PATH,
>     RESOURCE_LOADER_PATH);
>      velocityEngine.init();
>      StringWriter out = new StringWriter();
>      velocityEngine.mergeTemplate(mailMessageTemplate,
>     templateContext.getContext(), out);
>      content = out.getBuffer().toString();
>
>  When JBOSS starts, the related Velocity log contains this line:
>  ERROR [VelocityEngine] ResourceManager : unable to find resource
>  'VM_global_library.vm' in any resource loader.
>  INFO [VelocityEngine] Velocimacro : error using VM library template
>  VM_global_library.vm : org.apache.velocity.exception.Reso
>  urceNotFoundException: Unable to find resource 'VM_global_library.vm'
>  I've searched for the file above and found it in JBOSS
>  \docs\examples\varia\deployment-service\templates.
>  So, my question would be if I need to perform any special configuration
>  to use Velocity inside JBOSS(currently I just have velocity 1.5 jar in
>  my .ear file and use it directly in the helper class as described above)
>  and where should I place the file configuring the Velocity engine. But
>  the most important problem I'm facing is that of specifying the
>  directory where my templates are located. When I specify the directory
>  absolute path, everything works fine, but when I try to specify it using
>  a relative path, the templates can't be find. I have defined the
>  template directory (RESOURCE_LOADER_PATH constant) relative to the class
>  TemplateUtils, where the Velocity code lies. But I get a
>  ResourceNotFoundException. So, is it possible to configure the resource
>  loader path using relative paths?
>  Thanks for your help.
>
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