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.dsmlv2.request; 021 022 023import org.apache.directory.api.asn1.DecoderException; 024import org.apache.directory.api.i18n.I18n; 025 026 027/** 028 * Not Filter Object to store the Not filter. 029 * 030 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 031 */ 032public class NotFilter extends ConnectorFilter 033{ 034 /** 035 * Subclass the addFilterMethod, as this is specific for a NotFilter (we 036 * cannot have more than one elements). 037 * 038 * @param filter The Filter to add 039 */ 040 @Override 041 public void addFilter( Filter filter ) throws DecoderException 042 { 043 if ( filterSet != null ) 044 { 045 throw new DecoderException( I18n.err( I18n.ERR_05501_MORE_THAN_ONE_FILTER_FOR_NOT_FILTER ) ); 046 } 047 048 super.addFilter( filter ); 049 } 050 051 052 /** 053 * Get the NotFilter 054 * 055 * @return Returns the notFilter. 056 */ 057 public Filter getNotFilter() 058 { 059 return filterSet.get( 0 ); 060 } 061 062 063 /** 064 * Set the NotFilter 065 * 066 * @param notFilter The notFilter to set. 067 * @throws DecoderException If the filter is invalid 068 */ 069 public void setNotFilter( Filter notFilter ) throws DecoderException 070 { 071 if ( filterSet != null ) 072 { 073 throw new DecoderException( I18n.err( I18n.ERR_05501_MORE_THAN_ONE_FILTER_FOR_NOT_FILTER ) ); 074 } 075 076 super.addFilter( notFilter ); 077 } 078 079 080 /** 081 * Return a string compliant with RFC 2254 representing a NOT filter 082 * 083 * @return The NOT filter string 084 */ 085 @Override 086 public String toString() 087 { 088 StringBuilder sb = new StringBuilder(); 089 090 sb.append( '!' ).append( super.toString() ); 091 092 return sb.toString(); 093 } 094}