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 RecordClass implements EnumConverter<Short>
032{
033    /** Internet */
034    IN(1),
035
036    /** CSNET class */
037    CS(2),
038
039    /** CHAOS class */
040    CH(3),
041
042    /** Hesiod [Dyer 87] */
043    HS(4),
044
045    /** Special value used in dynamic update messages */
046    NONE(254),
047
048    /** Any class */
049    ANY(255);
050
051    private static ReverseEnumMap<Short, RecordClass> map = new ReverseEnumMap<>( RecordClass.class );
052
053    private final short value;
054
055
056    RecordClass( int value )
057    {
058        this.value = ( short ) value;
059    }
060
061
062    public Short convert()
063    {
064        return this.value;
065    }
066
067
068    /**
069     * Converts an ordinal value into a {@link RecordClass}.
070     *
071     * @param value
072     * @return The {@link RecordClass}.
073     */
074    public static RecordClass convert( short value )
075    {
076        return map.get( value );
077    }
078}