/*
    * DaCapo Benchmark Maven Plugin
    * Copyright (C) 2010 Technische Universität Darmstadt
    * info@scalabench.org
    *
    * 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.
   */
  package org.scalabench.plugins.dacapo;
  
  import java.io.File;
  import java.io.IOException;
  
  import org.apache.maven.artifact.Artifact;
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.plugin.MojoFailureException;
  import org.codehaus.plexus.util.FileUtils;
  
  /**
   * Package the benchmark's required libraries.
   * 
   * @since 0.1.0
   * 
   * @threadSafe
   * @goal package-libraries
   * @phase prepare-package
   * @requiresDependencyResolution compile
   */
  public class PackageLibrariesMojo extends AbstractDacapoBenchmarkMojo {
      
      /**
       * The library output directory.
       * 
       * @required
       * @readonly
       * @parameter expression="${project.build.outputDirectory}/jar"
       */
      private File libraryOutputDirectory;
      
      @Override
      public void execute() throws MojoExecutionException, MojoFailureException {
          for (final Artifact library : getLibraries())
              packageLibrary(library);
      }
      
      private void packageLibrary(Artifact artifact) throws MojoExecutionException {
          final File source = artifact.getFile();
          final File destination = new File(libraryOutputDirectory, artifact.getFile().getName());
          logInfo("Copying library from %s to %s", source, destination);
          copyFile(source, destination);
      }
      
      private void copyFile(File source, File destination) throws MojoExecutionException {
          try {
              FileUtils.copyFile(source, destination);
          } catch (IOException e) {
              throw new MojoExecutionException("Error copying from " + source + " to " + destination, e);
          }
      }
  }