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.ldap.model.schema.comparators;
21
22
23 import org.apache.directory.api.i18n.I18n;
24 import org.apache.directory.api.ldap.model.exception.LdapException;
25 import org.apache.directory.api.ldap.model.schema.LdapComparator;
26 import org.apache.directory.api.ldap.model.schema.normalizers.DeepTrimNormalizer;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
29
30
31 /**
32 * A comparator that uses the DeepTrimNormalizer before comparing two values
33 *
34 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
35 */
36 public class DeepTrimComparator extends LdapComparator<String>
37 {
38 /** The serial version UID */
39 private static final long serialVersionUID = 2L;
40
41 /** A logger for this class */
42 private static final Logger LOG = LoggerFactory.getLogger( DeepTrimComparator.class );
43
44 /**
45 * The NormalizingComparator constructor. Its OID is the matching rule OID.
46 *
47 * @param oid The Comparator's OID
48 */
49 public DeepTrimComparator( String oid )
50 {
51 super( oid );
52 normalizer = new DeepTrimNormalizer();
53 }
54
55
56 /**
57 * {@inheritDoc}
58 */
59 public int compare( String o1, String o2 )
60 {
61 String n1 = o1;
62 String n2;
63
64 try
65 {
66 n1 = normalizer.normalize( o1 );
67 }
68 catch ( LdapException e )
69 {
70 if ( LOG.isWarnEnabled() )
71 {
72 LOG.warn( I18n.msg( I18n.MSG_13700_FAILED_TO_NORMALIZE, o1 ), e );
73 }
74
75 n1 = o1;
76 }
77
78 try
79 {
80 n2 = normalizer.normalize( o2 );
81 }
82 catch ( LdapException e )
83 {
84 if ( LOG.isWarnEnabled() )
85 {
86 LOG.warn( I18n.msg( I18n.MSG_13700_FAILED_TO_NORMALIZE, o2 ), e );
87 }
88
89 n2 = o2;
90 }
91
92 return n1.compareTo( n2 );
93 }
94 }