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.decorators; 021 022 023import java.nio.BufferOverflowException; 024import java.nio.ByteBuffer; 025 026import org.apache.directory.api.asn1.EncoderException; 027import org.apache.directory.api.asn1.ber.tlv.TLV; 028import org.apache.directory.api.i18n.I18n; 029import org.apache.directory.api.ldap.codec.api.LdapApiService; 030import org.apache.directory.api.ldap.codec.api.LdapCodecConstants; 031import org.apache.directory.api.ldap.model.message.ModifyDnResponse; 032 033 034/** 035 * A decorator for the ModifyDnResponse message 036 * 037 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 038 */ 039public class ModifyDnResponseDecorator extends ResponseDecorator<ModifyDnResponse> 040 implements ModifyDnResponse 041{ 042 /** The encoded modifyDnResponse length */ 043 private int modifyDnResponseLength; 044 045 046 /** 047 * Makes a ModifyDnResponse encodable. 048 * 049 * @param codec The LDAP service instance 050 * @param decoratedMessage the decorated ModifyDnResponse 051 */ 052 public ModifyDnResponseDecorator( LdapApiService codec, ModifyDnResponse decoratedMessage ) 053 { 054 super( codec, decoratedMessage ); 055 } 056 057 058 //------------------------------------------------------------------------- 059 // The Decorator methods 060 //------------------------------------------------------------------------- 061 /** 062 * Compute the ModifyDNResponse length 063 * <br> 064 * ModifyDNResponse : 065 * <pre> 066 * 0x6D L1 067 * | 068 * +--> LdapResult 069 * 070 * L1 = Length(LdapResult) 071 * Length(ModifyDNResponse) = Length(0x6D) + Length(L1) + L1 072 * </pre> 073 */ 074 @Override 075 public int computeLength() 076 { 077 modifyDnResponseLength = ( ( LdapResultDecorator ) getLdapResult() ).computeLength(); 078 079 return 1 + TLV.getNbBytes( modifyDnResponseLength ) + modifyDnResponseLength; 080 } 081 082 083 /** 084 * Encode the ModifyDnResponse message to a PDU. 085 * 086 * @param buffer The buffer where to put the PDU 087 */ 088 @Override 089 public ByteBuffer encode( ByteBuffer buffer ) throws EncoderException 090 { 091 try 092 { 093 // The ModifyResponse Tag 094 buffer.put( LdapCodecConstants.MODIFY_DN_RESPONSE_TAG ); 095 buffer.put( TLV.getBytes( modifyDnResponseLength ) ); 096 097 // The LdapResult 098 ( ( LdapResultDecorator ) getLdapResult() ).encode( buffer ); 099 } 100 catch ( BufferOverflowException boe ) 101 { 102 throw new EncoderException( I18n.err( I18n.ERR_04005 ), boe ); 103 } 104 105 return buffer; 106 } 107}