Maven: How can my mojo access its own resources? - maven-2

Question

I have a project (here called my-artifact) which needs to generate sources from a model file. I've created a maven-plugin (my-code-generator) which is used as described in the pom.xml excerpt below. It loads and processes the model.xml from my-artifact's resources and generates code using some predefined templates stored within the plugin. The question is how my-code-generator could access these templates as they are not in the project resources but within its own resources.
Thanks in advance
<plugin>
<groupId>my-group</groupId>
<artifactId>my-code-generator</artifactId>
<version>0.0.1-SNAPSHOT</version>
<configuration>
<modelfile>
src/main/resources/model.xml
</modelDir>
</configuration>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>generate-model</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<executions>
<execution>
<id>add-source</id>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
<sources>
<source>target/generated-sources</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>

Answer 1

Just use the ClassLoader, to get resources from the MyCodeGenerator Maven plugin.
Add something like this to your MyCodeGeneratorMojo
URL getTemplate(String fileName) {
return this.getClass().getResource(fileName);
}
Within the MyCodeGenerator Maven plugin, add the template(s) to the src/main/resources directory (don't forget to use the correct package entry (directories) within that directory).

Answer 2

By including them in the jar file for the plugin and referencing them via classpath, via ClassLoader.getResourceAsStream.
By packaging them as another artifact, declaring them as a dependency, and calling the dependency-resolution API, which is a lot more work.