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 /**
30 * Standard HTTP/2 frame types.
31 *
32 * @since 5.0
33 */
34 public enum FrameType {
35
36 DATA (0x00),
37 HEADERS (0x01),
38 PRIORITY (0x02),
39 RST_STREAM (0x03),
40 SETTINGS (0x04),
41 PUSH_PROMISE (0x05),
42 PING (0x06),
43 GOAWAY (0x07),
44 WINDOW_UPDATE (0x08),
45 CONTINUATION (0x09);
46
47 int value;
48
49 FrameType(final int value) {
50 this.value = value;
51 }
52
53 public int getValue() {
54 return value;
55 }
56
57 private static final FrameTyperameType.html#FrameType">FrameType[] LOOKUP_TABLE = new FrameType[10];
58 static {
59 for (final FrameType frameType: FrameType.values()) {
60 LOOKUP_TABLE[frameType.value] = frameType;
61 }
62 }
63
64 public static FrameType valueOf(final int value) {
65 if (value < 0 || value >= LOOKUP_TABLE.length) {
66 return null;
67 }
68 return LOOKUP_TABLE[value];
69 }
70
71 public static String toString(final int value) {
72 if (value < 0 || value >= LOOKUP_TABLE.length) {
73 return Integer.toString(value);
74 }
75 return LOOKUP_TABLE[value].name();
76 }
77
78 }