/*
    * #%L
    * Mojo's Maven plugin for Cobertura
    * %%
    * Copyright (C) 2005 - 2013 Codehaus
    * %%
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
   * 
   *      http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   * #L%
   */
  package org.codehaus.mojo.cobertura;
  
  import net.sourceforge.cobertura.coveragedata.CoverageDataFileHandler;
  import net.sourceforge.cobertura.coveragedata.PackageData;
  import net.sourceforge.cobertura.coveragedata.ProjectData;
  import net.sourceforge.cobertura.util.Header;
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.plugin.MojoFailureException;
  
  import java.text.NumberFormat;
  import java.util.Date;
  import java.util.Iterator;
  
  /**
   * Output the contents of Cobertura's data file to the command line.
   *
   * @author <a href="mailto:joakim@erdfelt.com">Joakim Erdfelt</a>
   * @version $Id$
   * @goal dump-datafile
   */
  public class CoberturaDatafileDumpMojo
      extends AbstractCoberturaMojo
  {
      /**
       * {@inheritDoc}
       */
      public void execute()
          throws MojoExecutionException, MojoFailureException
      {
          if ( skipMojo() )
          {
              return;
          }
  
          if ( !getDataFile().exists() )
          {
              throw new MojoExecutionException( "Unable to dump nonexistent dataFile [" + getDataFile() + "]" );
          }
  
          ProjectData projectData = CoverageDataFileHandler.loadCoverageData( getDataFile() );
          NumberFormat percentage = NumberFormat.getPercentInstance();
          NumberFormat integer = NumberFormat.getIntegerInstance();
  
          println( "<?xml version=\"1.0\"?>" );
  
          printProject( projectData, percentage, integer );
  
          Iterator it = projectData.getPackages().iterator();
          while ( it.hasNext() )
          {
              PackageData packageData = (PackageData) it.next();
              printPackage( percentage, integer, packageData );
          }
  
          println( "</coverage>" );
      }
  
      /**
       * print project info to the log.
       *
       * @param projectData
       * @param percentage
       * @param integer
       */
      private void printProject( ProjectData projectData, NumberFormat percentage, NumberFormat integer )
      {
          println( "<coverage line-rate=\"" + percentage.format( projectData.getLineCoverageRate() ) + "\" branch-rate=\""
                       + percentage.format( projectData.getBranchCoverageRate() ) + "\" lines-covered=\""
                       + integer.format( projectData.getNumberOfCoveredLines() ) + "\" lines-valid=\"" + integer.format(
              projectData.getNumberOfValidLines() ) + "\" branches-covered=\"" + integer.format(
              projectData.getNumberOfCoveredBranches() ) + "\" branches-valid=\"" + integer.format(
              projectData.getNumberOfValidBranches() ) + "\" version=\"" + Header.version() + "\" timestamp=\""
                       + new Date().getTime() + "\">" );
      }
  
      /**
       * print package info to the log.
       *
       * @param percentage
       * @param integer
      * @param packageData
      */
     private void printPackage( NumberFormat percentage, NumberFormat integer, PackageData packageData )
     {
         println( "<package name=\"" + packageData.getName() + "\" line-rate=\"" + percentage.format(
             packageData.getLineCoverageRate() ) + "\" branch-rate=\"" + percentage.format(
             packageData.getBranchCoverageRate() ) + "\" lines-covered=\"" + integer.format(
             packageData.getNumberOfCoveredLines() ) + "\" lines-valid=\"" + integer.format(
             packageData.getNumberOfValidLines() ) + "\" branches-covered=\"" + integer.format(
             packageData.getNumberOfCoveredBranches() ) + "\" branches-valid=\"" + integer.format(
             packageData.getNumberOfValidBranches() ) + "\" />" );
     }
 
     /**
      * Write the message to the logger
      *
      * @param msg
      */
     private void println( String msg )
     {
         getLog().info( msg );
     }
 }