001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 * 019 */ 020 021package org.apache.directory.server.dns.messages; 022 023 024import org.apache.directory.server.dns.util.EnumConverter; 025import org.apache.directory.server.dns.util.ReverseEnumMap; 026 027 028/** 029 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 030 */ 031public enum MessageType implements EnumConverter<Byte> 032{ 033 /** A query message. */ 034 QUERY(0), 035 036 /** A response message. */ 037 RESPONSE(1); 038 039 private static ReverseEnumMap<Byte, MessageType> map = new ReverseEnumMap<>( MessageType.class ); 040 041 private final byte value; 042 043 044 MessageType( int value ) 045 { 046 this.value = ( byte ) value; 047 } 048 049 050 public Byte convert() 051 { 052 return this.value; 053 } 054 055 056 /** 057 * Converts an ordinal value into a {@link MessageType}. 058 * 059 * @param value 060 * @return The {@link MessageType}. 061 */ 062 public static MessageType convert( byte value ) 063 { 064 return map.get( value ); 065 } 066}