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.ldap.replication; 022 023 024import org.apache.directory.api.ldap.model.constants.SchemaConstants; 025import org.apache.directory.api.ldap.model.entry.Entry; 026import org.apache.directory.api.ldap.model.exception.LdapException; 027import org.apache.directory.api.ldap.model.message.controls.ChangeType; 028import org.apache.directory.server.core.api.entry.ClonedServerEntry; 029 030 031/** 032 * A place holder storing an Entry and the operation applied on it 033 * 034 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 035 */ 036public class ReplicaEventMessage 037{ 038 /** The message change type */ 039 private ChangeType changeType; 040 041 /** The entry */ 042 private Entry entry; 043 044 /** 045 * Create a new ReplicaEvent instance for a Add/Delete+Modify operation 046 * @param changeType The change type 047 * @param entry The entry 048 */ 049 public ReplicaEventMessage( ChangeType changeType, Entry entry ) 050 { 051 this.changeType = changeType; 052 053 if ( entry instanceof ClonedServerEntry ) 054 { 055 this.entry = ( ( ClonedServerEntry ) entry ).getClonedEntry(); 056 } 057 else 058 { 059 this.entry = entry; 060 } 061 } 062 063 064 /** 065 * @return The changeType 066 */ 067 public ChangeType getChangeType() 068 { 069 return changeType; 070 } 071 072 073 /** 074 * @return The stored Entry 075 */ 076 public Entry getEntry() 077 { 078 return entry; 079 } 080 081 082 /** 083 * checks if the event's CSN is older than the given CSN 084 * 085 * @param csn the CSN 086 * @return true if the event's CSN is older than the given CSN 087 * @throws LdapException if there are any extreme conditions like a null entry or missing entryCSN attribute. 088 */ 089 public boolean isEventOlderThan( String csn ) throws LdapException 090 { 091 if ( csn == null ) 092 { 093 return false; 094 } 095 096 String entryCsn = entry.get( SchemaConstants.ENTRY_CSN_AT ).getString(); 097 098 int i = entryCsn.compareTo( csn ); 099 100 return ( i <= 0 ); 101 } 102}