/* Copyright 2004
 * 
 */
package org.apache.maven.repository;

import java.io.File;
import java.io.IOException;
import java.util.List;

import org.apache.maven.ArtifactListBuilder;
import org.apache.maven.MavenUtils;
import org.apache.maven.jelly.MavenJellyContext;
import org.apache.maven.project.Project;
import org.apache.maven.util.HttpUtils;
import org.apache.commons.betwixt.io.BeanReader;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * ComponentArtifactTypeHandler handles globs of jars based
 * on the component dependency in the project.
 * 
 * 
 * @author Daniel Marchant <dan@driedtoast.com>
 * @version 1.0 9:01:00 AM
 *
 */
public class ComponentArtifactTypeHandler extends DefaultArtifactTypeHandler {

	private Log log = LogFactory.getLog(ComponentArtifactTypeHandler.class);
	
	public ComponentArtifactTypeHandler() {
		
	}
	
	
	/**
	 * Look in the project file xml and get the appropriate jars specified in the list.
	 * Should feed the DependencyVerifier and the BootstrapTask
	 */
	public List getDependentArtifacts(Artifact artifact, MavenJellyContext context) {
		
		 List fetched = (List)context.getVariable(artifact.getName() + ".dependencies.fetched");
		 if(fetched != null) return fetched;
		 
		 String urlPath = artifact.getUrlPath();
		 int idx = urlPath.lastIndexOf('.');
		 urlPath = urlPath.substring(0,(idx)) + ".xml";
		 
		 String filePath = artifact.getFile().toString();
		 
		 idx = filePath.lastIndexOf('.');
		 filePath = filePath.substring(0,(idx)) + ".xml";
		 
		 try {
		 	log.error(" getting file path  " + filePath);
		 	File file = new File(filePath);
		 	if(!file.exists()) { 
		 		HttpUtils.getFile(urlPath, 
		 			file,
					false,
                	true, 
    				true,
					context);
		 	}
		 	
		 	BeanReader reader = MavenUtils.createBeanReader(Project.class);
		 	Project project = (Project)reader.parse(file); 
		 	project.setContext(context);
		 	
		 	List list = ArtifactListBuilder.build(project); 
		 	
		 	context.setVariable(artifact.getName() + ".dependencies.fetched",list);
		 	return list;
		 	
		 } catch(java.beans.IntrospectionException ie) { 
		 	 // @todo internationalize message...
			 log.warn("Not able to get the dependent artifacts for " + artifact.getName() + " - " + ie.getMessage());
			 log.debug("Exception Stack for dependent artifacts retriveval for " + artifact.getName(),ie);
		 } catch(org.xml.sax.SAXException saxe) {
		 	 //	@todo internationalize message...
			 log.warn("Not able to get the dependent artifacts for " + artifact.getName() + " - " + saxe.getMessage());
			 log.debug("Exception Stack for dependent artifacts retriveval for " + artifact.getName(),saxe);
		 } catch(javax.xml.parsers.ParserConfigurationException pce) {
		 	 //	@todo internationalize message...
			 log.warn("Not able to get the dependent artifacts for " + artifact.getName() + " - " + pce.getMessage());
			 log.debug("Exception Stack for dependent artifacts retriveval for " + artifact.getName(),pce);
		 } catch(IOException e) {
		 	 // @todo internationalize message...
			 log.warn("Not able to get the dependent artifacts for " + artifact.getName() + " - " + e.getMessage());
			 log.debug("Exception Stack for dependent artifacts retriveval for " + artifact.getName(),e);
		 }
		 
		return null;
	}
	
	
	
	
}