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.model.schema.normalizers;
021
022
023import org.apache.directory.api.ldap.model.constants.SchemaConstants;
024import org.apache.directory.api.ldap.model.entry.Value;
025import org.apache.directory.api.ldap.model.exception.LdapException;
026import org.apache.directory.api.ldap.model.schema.Normalizer;
027import org.apache.directory.api.ldap.model.schema.PrepareString;
028import org.apache.directory.api.ldap.model.schema.PreparedNormalizer;
029
030
031/**
032 * Normalize Numeric Strings
033 *
034 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
035 */
036@SuppressWarnings("serial")
037public class NumericNormalizer extends Normalizer implements PreparedNormalizer
038{
039    /**
040     * Creates a new instance of NumericNormalizer.
041     */
042    public NumericNormalizer()
043    {
044        super( SchemaConstants.NUMERIC_STRING_MATCH_MR_OID );
045    }
046
047
048    /**
049     * Normalize a Value
050     * 
051     * @param value The value to normalize
052     * @return The normalized value
053     * @exception LdapException If teh value cannot be normalized or is invalid
054     */
055    public Value normalize( Value value ) throws LdapException
056    {
057        String normalized = normalize( value.getString() );
058
059        return new Value( normalized );
060    }
061
062
063    /**
064     * {@inheritDoc}
065     */
066    @Override
067    public String normalize( String value ) throws LdapException
068    {
069        return normalize( value, PrepareString.AssertionType.ATTRIBUTE_VALUE );
070    }
071
072
073    /**
074     * {@inheritDoc}
075     */
076    @Override
077    public String normalize( String value, PrepareString.AssertionType assertionType ) throws LdapException
078    {
079        if ( value == null )
080        {
081            return null;
082        }
083
084        char[] chars = value.toCharArray();
085        
086        // Insignificant Characters Handling
087        return PrepareString.insignificantNumericStringHandling( chars );
088    }
089}