package org.andromda.maven.plugin.modelarchiver;
   
   import java.io.File;
   import org.apache.commons.io.FileUtils;
   import org.apache.maven.plugin.MojoExecutionException;
   
   /**
    * Builds archived model uml files.
    *
   * @author Bob Fields
   * @version $Id: $
   * @goal library.uml
   * @phase package
   * @description builds a versioned uml with .library.uml naming convention
   */
  public class UmlLibraryArchiverMojo
          extends BaseArchiveMojo
  {
      private static final String ARTIFACT_TYPE = "library.uml";
      /**
       * The extensions to search for when doing replacement of embedded model HREF references
       * within the archived model file from non-versioned to versioned references.
       *
       * @parameter expression=".library.uml"
       * @required
       */
      protected String replacementExtensions;
  
      /**
       * The pattern of the model file(s) that should be versioned.
       *
       * @parameter expression=".*(\\.library\\.uml)"
       * @required
       * @readonly
       */
      private String modelFilePattern;
  
      /**
       * <p>execute</p>
       *
       * @throws org.apache.maven.plugin.MojoExecutionException
       *          if any.
       * @see org.apache.maven.plugin.Mojo#execute()
       */
      public void execute()
              throws MojoExecutionException
      {
          if (getLog().isDebugEnabled())
          {
              getLog().debug(" ======= UmlLibraryArchiverMojo settings =======");
              getLog().debug("modelSourceDirectory[" + modelSourceDirectory + ']');
              getLog().debug("workDirectory[" + workDirectory + ']');
              getLog().debug("outputDirectory[" + outputDirectory + ']');
              getLog().debug("finalName[" + finalName + ']');
              getLog().debug("replaceExtensions[" + replaceExtensions + ']');
          }
  
          try
          {
              final File buildDirectory = this.workDirectory;
              if (buildDirectory.exists())
              {   // old files in directory are not automatically deleted.
                  deleteFiles(buildDirectory.getAbsolutePath(), ARTIFACT_TYPE);
              }
              else
              {
                  buildDirectory.mkdirs();
              }
  
              if (modelSourceDirectory.exists())
              {
                  getLog().info("Copy " + ARTIFACT_TYPE + " resources to " + buildDirectory.getAbsolutePath());
                  final File[] modelFiles = modelSourceDirectory.listFiles();
                  for (final File file : modelFiles)
                  {
                      if (file.isFile() && file.toString().matches(this.modelFilePattern))
                      {
                          final File newFile =
                                  new File(buildDirectory,
                                          this.finalName + '.' + ARTIFACT_TYPE);
                          FileUtils.copyFile(file, newFile);
  
                          if (replaceExtensions)
                          {
                              getLog().info("Replace extensions in " + newFile);
                              replaceExtensions(this.replacementExtensions, newFile);
                          }
  
                          setArtifactFile(newFile);
                      }
                  }
              }
          }
          catch (final Throwable throwable)
          {
              throw new MojoExecutionException("Error assembling model", throwable);
          }
      }
  }