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 */ 019package org.apache.directory.api.ldap.extras.controls.transaction; 020 021import java.util.Arrays; 022 023import org.apache.directory.api.ldap.model.message.controls.AbstractControl; 024import org.apache.directory.api.util.Strings; 025 026/** 027 * The Transaction Specification control. It's defined in RFC 5805. 028 * This control is sent with every update once a transaction is started. 029 * It contains the Transaction ID. 030 * 031 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 032 */ 033public class TransactionSpecificationImpl extends AbstractControl implements TransactionSpecification 034{ 035 /** The Transaction Specification identifier */ 036 private byte[] identifier; 037 038 /** 039 * Default constructor 040 */ 041 public TransactionSpecificationImpl() 042 { 043 super( OID ); 044 } 045 046 047 /** 048 * {@inheritDoc} 049 */ 050 @Override 051 public byte[] getIdentifier() 052 { 053 return identifier; 054 } 055 056 057 /** 058 * {@inheritDoc} 059 */ 060 @Override 061 public void setIdentifier( byte[] identifier ) 062 { 063 // Copy the byte[] 064 if ( identifier != null ) 065 { 066 this.identifier = new byte[identifier.length]; 067 System.arraycopy( identifier, 0, this.identifier, 0, identifier.length ); 068 } 069 } 070 071 072 /** 073 * @see Object#hashCode() 074 */ 075 @Override 076 public int hashCode() 077 { 078 int h = super.hashCode(); 079 080 if ( identifier != null ) 081 { 082 for ( byte b : identifier ) 083 { 084 h = h * 17 + b; 085 } 086 } 087 088 return h; 089 } 090 091 092 /** 093 * @see Object#equals(Object) 094 */ 095 @Override 096 public boolean equals( Object o ) 097 { 098 if ( this == o ) 099 { 100 return true; 101 } 102 103 if ( !( o instanceof TransactionSpecification ) ) 104 { 105 return false; 106 } 107 108 TransactionSpecification otherControl = ( TransactionSpecification ) o; 109 110 return super.equals( o ) 111 && Arrays.equals( identifier, otherControl.getIdentifier() ); 112 } 113 114 115 /** 116 * @see Object#toString() 117 */ 118 @Override 119 public String toString() 120 { 121 StringBuilder sb = new StringBuilder(); 122 123 sb.append( " Transaction Spcecification control :\n" ); 124 sb.append( " oid : " ).append( getOid() ).append( '\n' ); 125 sb.append( " critical : " ).append( isCritical() ).append( '\n' ); 126 127 if ( identifier != null ) 128 { 129 sb.append( " Transaction ID=null" ).append( '\n' ); 130 } 131 else 132 { 133 sb.append( " Transaction ID=" ).append( Strings.dumpBytes( identifier ) ).append( '\n' ); 134 } 135 136 return sb.toString(); 137 } 138}