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.actions.searchRequest.filter; 021 022 023import org.apache.directory.api.asn1.DecoderException; 024import org.apache.directory.api.asn1.ber.grammar.GrammarAction; 025import org.apache.directory.api.asn1.ber.tlv.TLV; 026import org.apache.directory.api.i18n.I18n; 027import org.apache.directory.api.ldap.codec.api.LdapMessageContainer; 028import org.apache.directory.api.ldap.codec.decorators.SearchRequestDecorator; 029import org.apache.directory.api.ldap.codec.search.SubstringFilter; 030import org.apache.directory.api.util.Strings; 031import org.slf4j.Logger; 032import org.slf4j.LoggerFactory; 033 034 035/** 036 * The action used to store an initial value into a substring filter 037 * <pre> 038 * SubstringFilter ::= SEQUENCE { 039 * ... 040 * substrings SEQUENCE OF CHOICE { 041 * initial [0] LDAPSTRING, 042 * ... 043 * </pre> 044 * 045 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 046 */ 047public class StoreInitial extends GrammarAction<LdapMessageContainer<SearchRequestDecorator>> 048{ 049 /** The logger */ 050 private static final Logger LOG = LoggerFactory.getLogger( StoreInitial.class ); 051 052 053 /** 054 * Instantiates a new store any action. 055 */ 056 public StoreInitial() 057 { 058 super( "Store an initial value" ); 059 } 060 061 062 /** 063 * {@inheritDoc} 064 */ 065 public void action( LdapMessageContainer<SearchRequestDecorator> container ) throws DecoderException 066 { 067 SearchRequestDecorator searchRequestDecorator = container.getMessage(); 068 069 TLV tlv = container.getCurrentTLV(); 070 071 // Store the value. 072 SubstringFilter substringFilter = ( SubstringFilter ) searchRequestDecorator.getTerminalFilter(); 073 074 if ( tlv.getLength() == 0 ) 075 { 076 String msg = I18n.err( I18n.ERR_04108 ); 077 LOG.error( msg ); 078 throw new DecoderException( msg ); 079 } 080 081 substringFilter.setInitialSubstrings( Strings.utf8ToString( tlv.getValue().getData() ) ); 082 083 // We now have to get back to the nearest filter which is 084 // not terminal. 085 searchRequestDecorator.unstackFilters( container ); 086 } 087}