1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27 package org.apache.hc.core5.http2.frame;
28
29 import java.nio.ByteBuffer;
30
31 /**
32 * HTTP/2 stream frame.
33 *
34 * @since 5.0
35 */
36 public final class RawFrame extends Frame<ByteBuffer> {
37
38 private final ByteBuffer payload;
39 private final int len;
40
41 public RawFrame(final int type, final int flags, final int streamId, final ByteBuffer payload) {
42 super(type, flags, streamId);
43 this.payload = payload;
44 this.len = payload != null ? payload.remaining() : 0;
45 }
46
47 public boolean isPadded() {
48 return isFlagSet(FrameFlag.PADDED);
49 }
50
51 public int getLength() {
52 return len;
53 }
54
55 public ByteBuffer getPayloadContent() {
56 if (payload != null) {
57 if (isPadded()) {
58 final ByteBuffer dup = payload.duplicate();
59 if (dup.remaining() == 0) {
60 return null;
61 }
62 final int padding = dup.get() & 0xff;
63 if (padding > dup.remaining()) {
64 return null;
65 }
66 dup.limit(dup.limit() - padding);
67 return dup;
68 }
69 return payload.duplicate();
70 }
71 return null;
72 }
73
74 @Override
75 public ByteBuffer getPayload() {
76 return payload != null ? payload.duplicate() : null;
77 }
78
79 }