1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * https://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20 package org.apache.directory.api.dsmlv2.request;
21
22
23 import org.apache.directory.api.asn1.DecoderException;
24 import org.apache.directory.api.i18n.I18n;
25
26
27 /**
28 * Not Filter Object to store the Not filter.
29 *
30 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
31 */
32 public class NotFilter extends ConnectorFilter
33 {
34 /**
35 * Subclass the addFilterMethod, as this is specific for a NotFilter (we
36 * cannot have more than one elements).
37 *
38 * @param filter The Filter to add
39 */
40 @Override
41 public void addFilter( Filter filter ) throws DecoderException
42 {
43 if ( filterSet != null )
44 {
45 throw new DecoderException( I18n.err( I18n.ERR_05501_MORE_THAN_ONE_FILTER_FOR_NOT_FILTER ) );
46 }
47
48 super.addFilter( filter );
49 }
50
51
52 /**
53 * Get the NotFilter
54 *
55 * @return Returns the notFilter.
56 */
57 public Filter getNotFilter()
58 {
59 return filterSet.get( 0 );
60 }
61
62
63 /**
64 * Set the NotFilter
65 *
66 * @param notFilter The notFilter to set.
67 * @throws DecoderException If the filter is invalid
68 */
69 public void setNotFilter( Filter notFilter ) throws DecoderException
70 {
71 if ( filterSet != null )
72 {
73 throw new DecoderException( I18n.err( I18n.ERR_05501_MORE_THAN_ONE_FILTER_FOR_NOT_FILTER ) );
74 }
75
76 super.addFilter( notFilter );
77 }
78
79
80 /**
81 * Return a string compliant with RFC 2254 representing a NOT filter
82 *
83 * @return The NOT filter string
84 */
85 @Override
86 public String toString()
87 {
88 StringBuilder sb = new StringBuilder();
89
90 sb.append( '!' ).append( super.toString() );
91
92 return sb.toString();
93 }
94 }