George V. Reilly's Technical Blog

NVelocity: loading templates from embedded resources

http://www.codegeneration.net/logos/nvelocity.gif

In last week's tip on using the NVelocity template formatting engine, I described what to set to load a template from an absolute path.

Here's the magic necessary to get NVelocity to load a template from an embedded resource: 

 VelocityEngine engine = new VelocityEngine();
 ExtendedProperties properties = new ExtendedProperties();
 properties.AddProperty("resource.loader", "assembly");
 properties.AddProperty("assembly.resource.loader.class",
     "NVelocity.Runtime.Resource.Loader.AssemblyResourceLoader, NVelocity");
 properties.AddProperty("assembly.resource.loader.assembly", "StencilFormatter");
 engine.Init(properties);
Posted: Mar 14 2007, 10:50 AM by george_v_reilly | with 1 comment(s)
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Comments

Mike said:

Huh, didn't seem to work. I am assuming this code should allow you to create a template text file ("helloworld.vm" in my case) and embed it in an assembly, then load it from the assembly instead of the file system. I am also assuming "StencilFormatter" is the name of the assembly that contains the NVelocity template file. If these assumptions are correct, this example does not seem to work.

I am using NVelocity v0.4.2.8580, and I get the following runtime exception (of type "Exception"):

Problem initializing template loader: System.Collections.ArrayList

Error is:    at NVelocity.Runtime.Resource.Loader.ResourceLoaderFactory.getLoader(RuntimeServices rs, String loaderClassName)\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0

# November 20, 2009 5:57 PM
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