MavenPom.java

/**
 * EasySOA Registry
 * Copyright 2011 Open Wide
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * Contact : easysoa-dev@googlegroups.com
 */

package org.easysoa.runtime.maven;

import java.io.Reader;

import org.apache.maven.model.Dependency;
import org.apache.maven.model.Model;
import org.apache.maven.model.io.xpp3.MavenXpp3Reader;

/**
 * Handles POM files to extract all dependencies of a deployable.
 * 
 * @author mkalam-alami
 *
 */
public class MavenPom {

	MavenDeployableDescriptor descriptor;
	
	Model model;
	
	/**
	 * Parses the specified POM to extract the deployable descriptor matching the project's artifact.
	 * @param pomReader
	 */
	protected MavenPom(Reader pomReader) {
		try {
			MavenXpp3Reader mavenReader = new MavenXpp3Reader();
			this.model = mavenReader.read(pomReader);
			
			// Add POM's project ID & its dependencies
			MavenDeployableDescriptor projectDescriptor = new MavenDeployableDescriptor(new MavenID(
					this.model.getGroupId(),
					this.model.getArtifactId(),
					this.model.getVersion()));
			for (Dependency dependency : this.model.getDependencies()) {
				projectDescriptor.addDependency(new MavenDeployableDescriptor(new MavenID(
						dependency.getGroupId(),
						dependency.getArtifactId(),
						dependency.getVersion())));
			}
			projectDescriptor.setAllDependenciesKnown(true);
			descriptor = projectDescriptor;
		} catch (Exception e) {
			// TODO Handle exceptions correctly
			e.printStackTrace();
		}
	}
	
	/**
	 * Returns exactly one descriptor for the deployable matching this project's POM.
	 * All dependencies for this descriptor will be provided.
	 */
	public MavenDeployableDescriptor getDeployableDescriptor() {
		return descriptor;
	}
	
	public Model getPomModel() {
		return model;
	}

}