1. Create an empty maven jar project.

To make it easier, use an archetype. Open a command window or terminal and enter the following changing the groupId and artifactId to whatever you want to use.

mvn archetype:generate -DgroupId=com.mycompany -DartifactId=my-pipeline-stage-impl -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false

2. Add the combiner-maven-plugin-api dependency.

In the new pom, add the following dependency.

<dependency>
  <groupId>com.github.jasonmfehr</groupId>
  <artifactId>combiner-maven-plugin</artifactId>
  <version>1.0.0-beta-05</version>
</dependency>

3. Implement the pipeline stage.

Create a new class that implements one of the four pipeline stage interfaces:

1. InputSourceReader

2. ResourceTransformer

3. ResourceCombiner

4. OutputSourceWriter

4. Build and deploy the jar to you artifact repository.

If you are just running locally, open a command window and type:

mvn clean install

5. Update the pom in your project that uses the combiner-maven-plugin.

Add the new jar you built as a dependency within the combiner-maven-plugin configuration. You can then specify the fully qualified class name (include the package) in the correct place in the plugin configuration.

  <plugin>
    <groupId>com.github.jasonmfehr</groupId>
    <artifactId>combiner-maven-plugin</artifactId>
    <version>1.0.0-beta-05</version>
    <dependencies>
      <dependency>
        <groupId>com.mycompany</groupId>
        <artifactId>my-pipeline-stage-impl</artifactId>
        <version>LATEST</version>
      </dependency>
    </dependencies>
  </plugin>