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.schema.normalizers;
021
022
023 import java.io.IOException;
024
025 import javax.naming.NamingException;
026
027 import org.apache.directory.shared.ldap.entry.Value;
028 import org.apache.directory.shared.ldap.entry.client.ClientStringValue;
029 import org.apache.directory.shared.ldap.schema.Normalizer;
030 import org.apache.directory.shared.ldap.schema.PrepareString;
031 import org.apache.directory.shared.ldap.schema.PrepareString.StringType;
032 import org.apache.directory.shared.ldap.util.StringTools;
033
034
035 /**
036 * Normalizer which trims down whitespace replacing multiple whitespace
037 * characters on the edges and within the string with a single space character
038 * thereby preserving tokenization order.
039 *
040 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
041 * @version $Rev: 798550 $
042 */
043 public class DeepTrimNormalizer implements Normalizer
044 {
045 // The serial UID
046 private static final long serialVersionUID = 1L;
047
048 /**
049 * {@inheritDoc}
050 */
051 public Value<?> normalize( Value<?> value ) throws NamingException
052 {
053 try
054 {
055 String normalized = PrepareString.normalize( value.getString(),
056 PrepareString.StringType.DIRECTORY_STRING );
057
058 return new ClientStringValue( normalized );
059 }
060 catch ( IOException ioe )
061 {
062 throw new NamingException( "Invalid value : " + value );
063 }
064 }
065
066
067 /**
068 * {@inheritDoc}
069 */
070 public String normalize( String value ) throws NamingException
071 {
072 try
073 {
074 String normalized = PrepareString.normalize( value,
075 PrepareString.StringType.DIRECTORY_STRING );
076
077 return normalized;
078 }
079 catch ( IOException ioe )
080 {
081 throw new NamingException( "Invalid value : " + value );
082 }
083 }
084 }