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1   /**
2    *
3    * Copyright 2004 The Apache Software Foundation
4    *
5    * Licensed under the Apache License, Version 2.0 (the "License");
6    * you may not use this file except in compliance with the License.
7    * You may obtain a copy of the License at
8    *
9    * http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.codehaus.plexus.archiver.snappy;
18  
19  import java.io.IOException;
20  import org.codehaus.plexus.archiver.ArchiverException;
21  import org.codehaus.plexus.archiver.util.Compressor;
22  import org.iq80.snappy.SnappyOutputStream;
23  import static org.codehaus.plexus.archiver.util.Streams.bufferedOutputStream;
24  import static org.codehaus.plexus.archiver.util.Streams.fileOutputStream;
25  
26  /**
27   * Snappy compression
28   */
29  public class SnappyCompressor
30      extends Compressor
31  {
32  
33      private SnappyOutputStream zOut;
34  
35      /**
36       * perform the Snappy compression operation.
37       */
38      @Override
39      public void compress()
40          throws ArchiverException
41      {
42          try
43          {
44              zOut = new SnappyOutputStream( bufferedOutputStream( fileOutputStream( getDestFile() ) ) );
45              compress( getSource(), zOut );
46          }
47          catch ( IOException ioe )
48          {
49              String msg = "Problem creating snappy " + ioe.getMessage();
50              throw new ArchiverException( msg, ioe );
51          }
52      }
53  
54      @Override
55      public void close()
56      {
57          try
58          {
59              if ( this.zOut != null )
60              {
61                  this.zOut.close();
62                  zOut = null;
63              }
64          }
65          catch ( final IOException e )
66          {
67              throw new ArchiverException( "Failure closing target.", e );
68          }
69      }
70  
71  }