Simple java class which reads assembly component and split it into smaller parts.

Splitter.java

import java.io.FileReader;
import java.util.HashMap;
import java.util.Map;

import org.apache.maven.plugin.assembly.model.Component;
import org.apache.maven.plugin.assembly.model.DependencySet;
import org.apache.maven.plugin.assembly.model.FileItem;
import org.apache.maven.plugin.assembly.model.FileSet;
import org.apache.maven.plugin.assembly.model.io.xpp3.ComponentXpp3Reader;
import org.apache.maven.plugin.assembly.model.io.xpp3.ComponentXpp3Writer;

public class Splitter {

	public static void main(String[] args) throws Exception {
		Map<String, Component> components = new HashMap<String, Component>();
		Component read = new ComponentXpp3Reader().read(new FileReader("src/main/resources/external/assembly-component.xml"));

		for (FileItem item : read.getFiles()) {
			String outputDirectory = item.getOutputDirectory();
			if (!components.containsKey(outputDirectory)) {
				components.put(outputDirectory, new Component());
			}
			components.get(outputDirectory).addFile(item);
		}

		for (FileSet item : read.getFileSets()) {
			String outputDirectory = item.getOutputDirectory();
			if (!components.containsKey(outputDirectory)) {
				components.put(outputDirectory, new Component());
			}
			components.get(outputDirectory).addFileSet(item);
		}

		for (DependencySet item : read.getDependencySets()) {
			String outputDirectory = item.getOutputDirectory();
			if (!components.containsKey(outputDirectory)) {
				components.put(outputDirectory, new Component());
			}
			components.get(outputDirectory).addDependencySet(item);
		}

		System.out.println(components.get("/modules/org/milyn/main"));
		new ComponentXpp3Writer().write(System.out, components.get("/modules/org/milyn/main"));
	}

}