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1   /*
2    *  Licensed to the Apache Software Foundation (ASF) under one or more
3    *  contributor license agreements.  See the NOTICE file distributed with
4    *  this work for additional information regarding copyright ownership.
5    *  The ASF licenses this file to You under the Apache License, Version 2.0
6    *  (the "License"); you may not use this file except in compliance with
7    *  the License.  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   */
18  package org.codehaus.plexus.archiver.zip;
19  
20  import java.io.File;
21  import java.io.IOException;
22  import java.io.InputStream;
23  import org.apache.commons.compress.parallel.ScatterGatherBackingStore;
24  
25  public class DeferredScatterOutputStream implements ScatterGatherBackingStore
26  {
27  
28      private final OffloadingOutputStream dfos;
29  
30      public DeferredScatterOutputStream( int threshold )
31      {
32          dfos = new OffloadingOutputStream( threshold, "scatterzipfragment", "zip", null );
33      }
34  
35      @Override
36      public InputStream getInputStream() throws IOException
37      {
38          return dfos.getInputStream();
39      }
40  
41      @Override
42      public void writeOut( byte[] data, int offset, int length ) throws IOException
43      {
44          dfos.write( data, offset, length );
45      }
46  
47      @Override
48      public void closeForWriting() throws IOException
49      {
50          dfos.close();
51      }
52  
53      @Override
54      public void close() throws IOException
55      {
56          File file = dfos.getFile();
57          if ( file != null )
58          {
59              file.delete();
60          }
61      }
62  
63  }