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 }