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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
4   //  ------------------------------------------------------------------------
5   //  All rights reserved. This program and the accompanying materials
6   //  are made available under the terms of the Eclipse Public License v1.0
7   //  and Apache License v2.0 which accompanies this distribution.
8   //
9   //      The Eclipse Public License is available at
10  //      http://www.eclipse.org/legal/epl-v10.html
11  //
12  //      The Apache License v2.0 is available at
13  //      http://www.opensource.org/licenses/apache2.0.php
14  //
15  //  You may elect to redistribute this code under either of these licenses.
16  //  ========================================================================
17  //
18  
19  package org.eclipse.jetty.client.util;
20  
21  import java.nio.ByteBuffer;
22  import java.util.Iterator;
23  import java.util.NoSuchElementException;
24  
25  import org.eclipse.jetty.client.api.ContentProvider;
26  
27  /**
28   * A {@link ContentProvider} for byte arrays.
29   */
30  public class BytesContentProvider extends AbstractTypedContentProvider
31  {
32      private final byte[][] bytes;
33      private final long length;
34  
35      public BytesContentProvider(byte[]... bytes)
36      {
37          this("application/octet-stream", bytes);
38      }
39  
40      public BytesContentProvider(String contentType, byte[]... bytes)
41      {
42          super(contentType);
43          this.bytes = bytes;
44          long length = 0;
45          for (byte[] buffer : bytes)
46              length += buffer.length;
47          this.length = length;
48      }
49  
50      @Override
51      public long getLength()
52      {
53          return length;
54      }
55  
56      @Override
57      public Iterator<ByteBuffer> iterator()
58      {
59          return new Iterator<ByteBuffer>()
60          {
61              private int index;
62  
63              @Override
64              public boolean hasNext()
65              {
66                  return index < bytes.length;
67              }
68  
69              @Override
70              public ByteBuffer next()
71              {
72                  try
73                  {
74                      return ByteBuffer.wrap(bytes[index++]);
75                  }
76                  catch (ArrayIndexOutOfBoundsException x)
77                  {
78                      throw new NoSuchElementException();
79                  }
80              }
81  
82              @Override
83              public void remove()
84              {
85                  throw new UnsupportedOperationException();
86              }
87          };
88      }
89  }