package org.codehaus.mojo.wagon.shared;
   
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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.
   */
  
  import java.io.File;
  import java.io.IOException;
  
  import org.apache.maven.plugin.logging.Log;
  import org.apache.maven.shared.model.fileset.FileSet;
  import org.apache.maven.wagon.Wagon;
  import org.apache.maven.wagon.WagonException;
  import org.codehaus.plexus.component.annotations.Component;
  import org.codehaus.plexus.component.annotations.Requirement;
  import org.codehaus.plexus.util.FileUtils;
  
  /**
   * Copy a set of file from a wagon repo to another wagon repo.
   */
  @Component(role = WagonCopy.class, hint = "default")
  public class DefaultWagonCopy
      implements WagonCopy
  {
      @Requirement
      private WagonDownload downloader;
  
      @Requirement
      private WagonUpload uploader;
  
      @Override
      public void copy( Wagon src, WagonFileSet wagonFileSet, Wagon target, boolean optimize, Log logger )
          throws WagonException, IOException
      {
          if ( wagonFileSet == null )
          {
              wagonFileSet = new WagonFileSet();
          }
  
          boolean removeDownloadDir = false;
  
          if ( wagonFileSet.getDownloadDirectory() == null )
          {
              File downloadSrcDir = File.createTempFile( "wagon", "wagon" );
              downloadSrcDir.delete();
              wagonFileSet.setDownloadDirectory( downloadSrcDir );
              removeDownloadDir = true;
          }
  
          try
          {
              this.downloader.download( src, wagonFileSet, logger );
  
              FileSet localFileSet = new FileSet();
              localFileSet.setDirectory( wagonFileSet.getDownloadDirectory().getAbsolutePath() );
              localFileSet.setOutputDirectory( wagonFileSet.getOutputDirectory() );
  
              this.uploader.upload( target, localFileSet, optimize, logger );
          }
          finally
          {
              if ( removeDownloadDir )
              {
                  FileUtils.deleteDirectory( wagonFileSet.getDownloadDirectory() );
              }
          }
  
      }
  }