com.evolveum.midpoint.prism.polystring.PrismDefaultPolyStringNormalizer.java Source code

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Here is the source code for com.evolveum.midpoint.prism.polystring.PrismDefaultPolyStringNormalizer.java

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/*
 * Copyright (c) 2010-2015 Evolveum
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.evolveum.midpoint.prism.polystring;

import java.text.Normalizer;

import org.apache.commons.lang.StringUtils;

/**
 * @author semancik
 *
 */
public class PrismDefaultPolyStringNormalizer implements PolyStringNormalizer {

    /* (non-Javadoc)
     * @see com.evolveum.midpoint.prism.polystring.PolyStringNormalizer#normalize(java.lang.String)
     */
    @Override
    public String normalize(String orig) {
        if (orig == null) {
            return null;
        }
        String s = StringUtils.trim(orig);
        s = Normalizer.normalize(s, Normalizer.Form.NFKD);
        s = s.replaceAll("[^\\w\\s\\d]", "");
        s = s.replaceAll("\\s+", " ");
        if (StringUtils.isBlank(s)) {
            s = "";
        }
        return StringUtils.lowerCase(s);
    }

}