package net.sf.statcvs.pages.xml;

 /**

  * @author Nilendra Weerasinghe (nilendraw@gmail.com)

  * @version $Id: LogXml.java,v 1.3 2008/04/02 11:52:02 benoitx Exp $

  */

 import java.util.Calendar;

 import java.util.Date;

 import java.util.GregorianCalendar;

 import java.util.HashSet;

 import java.util.Iterator;

 import java.util.Set;

 import net.sf.statcvs.model.Commit;

 import net.sf.statcvs.model.Repository;

 import net.sf.statcvs.output.ReportConfig;

 import org.jdom.Element;

 public class LogXml {

     private final ReportConfig config;

     private final Repository repository;

     /**

      * @param config Configuration and data for the report suite

      */

     public LogXml(final ReportConfig config) {

         this.config = config;

         this.repository = config.getRepository();

     }

     /**

      * returns jdom element which contains data extracted from the commit list of the repository

      *

      * @returns Element

      */

     public Element toFile() {

         if (this.repository.getCommits().isEmpty()) {

             return null;

         }

         final Date start = this.repository.getFirstDate();

         final Date end = this.repository.getLastDate();

         final Calendar calendar = new GregorianCalendar();

         calendar.setTime(end);

         final Calendar startCal = new GregorianCalendar();

         startCal.setTime(start);

         final Element commLog = new LogXmlMaker(this.config, this.repository.getCommits()).toFile();

         commLog.setAttribute("no_of_commits", Integer.toString(this.repository.getCommits().size()));

         commLog.setAttribute("active_developers", countActiveDevelopers());

         return commLog;

     }

     /**

      * returns the number of active developers as a string

      *

      * @returns String

      */

     private String countActiveDevelopers() {

         final Set developers = new HashSet();

         final Iterator it = this.repository.getCommits().iterator();

         while (it.hasNext()) {

             final Commit commit = (Commit) it.next();

             developers.add(commit.getAuthor());

         }

         return Integer.toString(developers.size());

     }

 }