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.http2.frames;
20
21 import java.nio.ByteBuffer;
22
23 public class DataFrame extends Frame
24 {
25 private final int streamId;
26 private final ByteBuffer data;
27 private final boolean endStream;
28 private final int padding;
29
30 public DataFrame(int streamId, ByteBuffer data, boolean endStream)
31 {
32 this(streamId, data, endStream, 0);
33 }
34
35 public DataFrame(int streamId, ByteBuffer data, boolean endStream, int padding)
36 {
37 super(FrameType.DATA);
38 this.streamId = streamId;
39 this.data = data;
40 this.endStream = endStream;
41 this.padding = padding;
42 }
43
44 public int getStreamId()
45 {
46 return streamId;
47 }
48
49 public ByteBuffer getData()
50 {
51 return data;
52 }
53
54 public boolean isEndStream()
55 {
56 return endStream;
57 }
58
59 /**
60 * @return the number of data bytes remaining.
61 */
62 public int remaining()
63 {
64 return data.remaining();
65 }
66
67 /**
68 * @return the number of bytes used for padding that count towards flow control.
69 */
70 public int padding()
71 {
72 return padding;
73 }
74
75 @Override
76 public String toString()
77 {
78 return String.format("%s#%d{length:%d,end=%b}", super.toString(), streamId, data.remaining(), endStream);
79 }
80 }