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 */ 020package org.apache.directory.api.ldap.codec.factory; 021 022import org.apache.directory.api.asn1.ber.tlv.BerValue; 023import org.apache.directory.api.asn1.util.Asn1Buffer; 024import org.apache.directory.api.ldap.codec.api.LdapApiService; 025import org.apache.directory.api.ldap.codec.api.LdapCodecConstants; 026import org.apache.directory.api.ldap.model.message.CompareRequest; 027import org.apache.directory.api.ldap.model.message.Message; 028 029/** 030 * The CompareRequest factory. 031 * 032 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 033 */ 034public final class CompareRequestFactory implements Messagefactory 035{ 036 /** The static instance */ 037 public static final CompareRequestFactory INSTANCE = new CompareRequestFactory(); 038 039 private CompareRequestFactory() 040 { 041 // Nothing to do 042 } 043 044 /** 045 * Encode the CompareRequest message to a PDU. 046 * <br> 047 * <pre> 048 * CompareRequest : 049 * 0x6E LL 050 * 0x04 LL entry 051 * 0x30 LL attributeValueAssertion 052 * 0x04 LL attributeDesc 053 * 0x04 LL assertionValue 054 * </pre> 055 * 056 * @param codec The LdapApiService instance 057 * @param buffer The buffer where to put the PDU 058 * @param message the CompareRequest to encode 059 */ 060 @Override 061 public void encodeReverse( LdapApiService codec, Asn1Buffer buffer, Message message ) 062 { 063 int pos = buffer.getPos(); 064 CompareRequest compareMessage = ( CompareRequest ) message; 065 066 // The assertionValue 067 BerValue.encodeOctetString( buffer, compareMessage.getAssertionValue().getBytes() ); 068 069 // The attributeDesc 070 BerValue.encodeOctetString( buffer, compareMessage.getAttributeId() ); 071 072 // The attributeValueAssertion sequence Tag 073 BerValue.encodeSequence( buffer, pos ); 074 075 // The entry DN 076 BerValue.encodeOctetString( buffer, compareMessage.getName().getName() ); 077 078 // The CompareRequest Tag 079 BerValue.encodeSequence( buffer, LdapCodecConstants.COMPARE_REQUEST_TAG, pos ); 080 } 081}