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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  
24  import org.apache.commons.compress.parallel.ScatterGatherBackingStore;
25  
26  public class DeferredScatterOutputStream implements ScatterGatherBackingStore {
27  
28      private final OffloadingOutputStream dfos;
29  
30      public DeferredScatterOutputStream(int threshold) {
31          dfos = new OffloadingOutputStream(threshold, "scatterzipfragment", "zip");
32      }
33  
34      @Override
35      public InputStream getInputStream() throws IOException {
36          return dfos.getInputStream();
37      }
38  
39      @Override
40      public void writeOut(byte[] data, int offset, int length) throws IOException {
41          dfos.write(data, offset, length);
42      }
43  
44      @Override
45      public void closeForWriting() throws IOException {
46          dfos.close();
47      }
48  
49      @Override
50      public void close() throws IOException {
51          File file = dfos.getFile();
52          if (file != null) {
53              file.delete();
54          }
55      }
56  }