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 package org.apache.directory.shared.ldap.codec.extended.operations.gracefulShutdown; 021 022 023 import org.apache.directory.shared.asn1.ber.grammar.IGrammar; 024 import org.apache.directory.shared.asn1.ber.grammar.IStates; 025 026 027 /** 028 * This class store the GracefulShutdown's grammar constants. It is also used 029 * for debugging purposes. 030 * 031 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 032 * @version $Rev: 764131 $, $Date: 2009-04-11 03:03:00 +0200 (Sat, 11 Apr 2009) $, 033 */ 034 public class GracefulShutdownStatesEnum implements IStates 035 { 036 // ~ Static fields/initializers 037 // ----------------------------------------------------------------- 038 039 // ========================================================================= 040 // GracefulShutdown grammar states 041 // ========================================================================= 042 043 /** Initial state */ 044 public static final int START_STATE = 0; 045 046 /** Sequence */ 047 public static final int GRACEFUL_SHUTDOWN_SEQUENCE_STATE = 1; 048 049 /** Time offline */ 050 public static final int TIME_OFFLINE_STATE = 2; 051 052 /** Delay */ 053 public static final int DELAY_STATE = 3; 054 055 /** terminal state */ 056 public static final int LAST_GRACEFUL_SHUTDOWN_STATE = 4; 057 058 // ========================================================================= 059 // States debug strings 060 // ========================================================================= 061 /** A string representation of all the states */ 062 private static String[] GracefulShutdownString = new String[] 063 { 064 "START_STATE", 065 "GRACEFUL_SHUTDOWN_SEQUENCE_STATE", 066 "TIME_OFFLINE_STATE", 067 "DELAY_STATE" 068 }; 069 070 /** The instance */ 071 private static GracefulShutdownStatesEnum instance = new GracefulShutdownStatesEnum(); 072 073 074 // ~ Constructors 075 // ------------------------------------------------------------------------------- 076 077 /** 078 * This is a private constructor. This class is a singleton 079 */ 080 private GracefulShutdownStatesEnum() 081 { 082 } 083 084 085 // ~ Methods 086 // ------------------------------------------------------------------------------------ 087 088 /** 089 * Get an instance of this class 090 * 091 * @return An instance on this class 092 */ 093 public static IStates getInstance() 094 { 095 return instance; 096 } 097 098 099 /** 100 * Get the grammar name 101 * 102 * @param grammar The grammar code 103 * @return The grammar name 104 */ 105 public String getGrammarName( int grammar ) 106 { 107 return "GRACEFUL_SHUTDOWN_GRAMMAR"; 108 } 109 110 111 /** 112 * Get the grammar name 113 * 114 * @param grammar The grammar class 115 * @return The grammar name 116 */ 117 public String getGrammarName( IGrammar grammar ) 118 { 119 if ( grammar instanceof GracefulShutdownGrammar ) 120 { 121 return "GRACEFUL_SHUTDOWN_GRAMMAR"; 122 } 123 124 return "UNKNOWN GRAMMAR"; 125 } 126 127 128 /** 129 * Get the string representing the state 130 * 131 * @param state The state number 132 * @return The String representing the state 133 */ 134 public String getState( int state ) 135 { 136 return ( ( state == GRAMMAR_END ) ? "GRACEFUL_SHUTDOWN_END_STATE" : GracefulShutdownString[state] ); 137 } 138 }