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 package org.apache.directory.shared.ldap.codec.actions; 021 022 023 import org.apache.directory.shared.asn1.ber.IAsn1Container; 024 import org.apache.directory.shared.asn1.ber.grammar.GrammarAction; 025 import org.apache.directory.shared.asn1.ber.tlv.TLV; 026 import org.apache.directory.shared.asn1.codec.DecoderException; 027 import org.apache.directory.shared.i18n.I18n; 028 import org.apache.directory.shared.ldap.codec.LdapMessageContainer; 029 import org.apache.directory.shared.ldap.codec.search.Filter; 030 import org.apache.directory.shared.ldap.codec.search.SearchRequestCodec; 031 import org.apache.directory.shared.ldap.codec.search.SubstringFilter; 032 import org.slf4j.Logger; 033 import org.slf4j.LoggerFactory; 034 035 036 /** 037 * The action used to initialize the Substrings filter 038 * 039 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 040 * @version $Rev$, $Date$, 041 */ 042 public class InitSubstringsFilterAction extends GrammarAction 043 { 044 /** The logger */ 045 private static final Logger log = LoggerFactory.getLogger( InitSubstringsFilterAction.class ); 046 047 /** Speedup for logs */ 048 private static final boolean IS_DEBUG = log.isDebugEnabled(); 049 050 public InitSubstringsFilterAction() 051 { 052 super( "Initialize Substrings filter" ); 053 } 054 055 /** 056 * The initialization action 057 */ 058 public void action( IAsn1Container container ) throws DecoderException 059 { 060 LdapMessageContainer ldapMessageContainer = ( LdapMessageContainer ) container; 061 SearchRequestCodec searchRequest = ldapMessageContainer.getSearchRequest(); 062 063 TLV tlv = ldapMessageContainer.getCurrentTLV(); 064 065 int expectedLength = tlv.getLength(); 066 067 if ( expectedLength == 0 ) 068 { 069 log.error( I18n.err( I18n.ERR_04012 ) ); 070 throw new DecoderException( I18n.err( I18n.ERR_04012 ) ); 071 } 072 073 // We can allocate the SearchRequest 074 Filter substringFilter = new SubstringFilter( ldapMessageContainer.getTlvId() ); 075 076 searchRequest.addCurrentFilter( substringFilter ); 077 searchRequest.setTerminalFilter( substringFilter ); 078 079 // As this is a new Constructed object, we have to init its 080 // length 081 082 substringFilter.setExpectedLength( expectedLength ); 083 substringFilter.setCurrentLength( 0 ); 084 085 if ( IS_DEBUG ) 086 { 087 log.debug( "Initialize Substrings filter" ); 088 } 089 } 090 }