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.DeleteResponse; 032 033 034/** 035 * A decorator for the DeleteRequest message 036 * 037 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 038 */ 039public class DeleteResponseDecorator extends ResponseDecorator<DeleteResponse> 040 implements DeleteResponse 041{ 042 /** The encoded deleteResponse length */ 043 private int deleteResponseLength; 044 045 046 /** 047 * Makes a DeleteResponse a MessageDecorator. 048 * 049 * @param codec The LDAP service instance 050 * @param decoratedMessage the decorated DeleteResponse 051 */ 052 public DeleteResponseDecorator( LdapApiService codec, DeleteResponse decoratedMessage ) 053 { 054 super( codec, decoratedMessage ); 055 } 056 057 058 //------------------------------------------------------------------------- 059 // The Decorator methods 060 //------------------------------------------------------------------------- 061 062 /** 063 * Compute the DelResponse length 064 * <br> 065 * DelResponse : 066 * <pre> 067 * 0x6B L1 068 * | 069 * +--> LdapResult 070 * 071 * L1 = Length(LdapResult) 072 * 073 * Length(DelResponse) = Length(0x6B) + Length(L1) + L1 074 * </pre> 075 */ 076 @Override 077 public int computeLength() 078 { 079 deleteResponseLength = ( ( LdapResultDecorator ) getLdapResult() ).computeLength(); 080 081 return 1 + TLV.getNbBytes( deleteResponseLength ) + deleteResponseLength; 082 } 083 084 085 /** 086 * Encode the DelResponse message to a PDU. 087 * 088 * @param buffer The buffer where to put the PDU 089 */ 090 @Override 091 public ByteBuffer encode( ByteBuffer buffer ) throws EncoderException 092 { 093 try 094 { 095 // The DelResponse Tag 096 buffer.put( LdapCodecConstants.DEL_RESPONSE_TAG ); 097 buffer.put( TLV.getBytes( deleteResponseLength ) ); 098 099 // The LdapResult 100 ( ( LdapResultDecorator ) getLdapResult() ).encode( buffer ); 101 } 102 catch ( BufferOverflowException boe ) 103 { 104 throw new EncoderException( I18n.err( I18n.ERR_04005 ), boe ); 105 } 106 107 return buffer; 108 } 109}