com.github.javarch.support.SlugGenerator.java Source code

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Here is the source code for com.github.javarch.support.SlugGenerator.java

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/*
* Copyright 2011 the original author or authors.
*
* 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.github.javarch.support;

import java.text.Normalizer;
import java.util.regex.Pattern;

import org.springframework.stereotype.Component;

/**
 * 
 * @author Lucas <i>luksrn@gmail.com</i>
 * 
 *
 */
@Component
public class SlugGenerator {

    public String encode(String str) {
        Pattern p = Pattern.compile("\\p{InCombiningDiacriticalMarks}+", Pattern.UNICODE_CASE);
        Pattern p2 = Pattern.compile("\\p{Punct}+", Pattern.UNICODE_CASE);
        Pattern p3 = Pattern.compile("\\s+", Pattern.UNICODE_CASE);

        // Decompose any funny characters.
        String link = Normalizer.normalize(str, Normalizer.Form.NFD).replaceAll(p.pattern(), "") // remove all the diacritic marks
                .replaceAll(p2.pattern(), " ").trim() // transform the punctuation into spaces first, so that we can trim some ending or beginning punctuation
                .replaceAll(p3.pattern(), "-") // and replace all the whitespace with a dash.
                .toLowerCase();

        return link;
    }

}