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.ExtendedOperationFactory; 025import org.apache.directory.api.ldap.codec.api.LdapApiService; 026import org.apache.directory.api.ldap.codec.api.LdapCodecConstants; 027import org.apache.directory.api.ldap.model.message.ExtendedRequest; 028import org.apache.directory.api.ldap.model.message.Message; 029import org.apache.directory.api.util.Strings; 030 031/** 032 * The ExtendedRequest factory. 033 * 034 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 035 */ 036public final class ExtendedRequestFactory implements Messagefactory 037{ 038 /** The static instance */ 039 public static final ExtendedRequestFactory INSTANCE = new ExtendedRequestFactory(); 040 041 private ExtendedRequestFactory() 042 { 043 super(); 044 } 045 046 047 /** 048 * Encode the ExtendedRequest message to a PDU. 049 * <br> 050 * ExtendedRequest : 051 * <pre> 052 * 0x77 L1 053 * | 054 * +--> 0x80 LL abcd requestName 055 * [+--> 0x81 LL abcd requestValue] 056 * </pre> 057 * 058 * @param codec The LdapApiService instance 059 * @param buffer The buffer where to put the PDU 060 * @param message the DeleteResponse to encode 061 */ 062 @Override 063 public void encodeReverse( LdapApiService codec, Asn1Buffer buffer, Message message ) 064 { 065 int start = buffer.getPos(); 066 ExtendedRequest extendedRequest = ( ExtendedRequest ) message; 067 068 // The responseValue, if any 069 ExtendedOperationFactory factory = codec.getExtendedRequestFactories(). 070 get( extendedRequest.getRequestName() ); 071 072 if ( factory != null ) 073 { 074 factory.encodeValue( buffer, extendedRequest ); 075 076 if ( buffer.getPos() > start ) 077 { 078 BerValue.encodeSequence( buffer, 079 ( byte ) LdapCodecConstants.EXTENDED_REQUEST_VALUE_TAG, 080 start ); 081 } 082 } 083 084 // The responseName, if any 085 if ( !Strings.isEmpty( extendedRequest.getRequestName() ) ) 086 { 087 BerValue.encodeOctetString( buffer, 088 ( byte ) LdapCodecConstants.EXTENDED_REQUEST_NAME_TAG, 089 extendedRequest.getRequestName() ); 090 } 091 092 // The sequence 093 BerValue.encodeSequence( buffer, LdapCodecConstants.EXTENDED_REQUEST_TAG, start ); 094 } 095}