com.exp.portlet.halcon.utils.FriendlyURLNormalizer.java Source code

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Here is the source code for com.exp.portlet.halcon.utils.FriendlyURLNormalizer.java

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/**
 * Copyright (c) 2000-2011 Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.exp.portlet.halcon.utils;

import com.liferay.portal.kernel.util.ArrayUtil;
import com.liferay.portal.kernel.util.CharPool;
import com.liferay.portal.kernel.util.GetterUtil;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.StringUtil;
import com.liferay.portal.kernel.util.Validator;

/**
 * @author Brian Wing Shun Chan
 */
public class FriendlyURLNormalizer {

    public static String normalize(String friendlyURL) {
        return normalize(friendlyURL, null);
    }

    public static String normalizeNoStopWords(String friendlyURL) {
        return normalizeNoStopWords(friendlyURL, null);
    }

    public static String normalize(String friendlyURL, char[] replaceChars) {
        if (Validator.isNull(friendlyURL)) {
            return friendlyURL;
        }

        friendlyURL = GetterUtil.getString(friendlyURL);
        friendlyURL = friendlyURL.toLowerCase();
        friendlyURL = AsciiUtils.convertNonAscii(friendlyURL);

        char[] charArray = friendlyURL.toCharArray();

        for (int i = 0; i < charArray.length; i++) {
            char oldChar = charArray[i];

            char newChar = oldChar;

            if (ArrayUtil.contains(_REPLACE_CHARS, oldChar)
                    || ((replaceChars != null) && ArrayUtil.contains(replaceChars, oldChar))) {

                newChar = CharPool.DASH;
            }

            if (oldChar != newChar) {
                charArray[i] = newChar;
            }
        }

        friendlyURL = new String(charArray);

        while (friendlyURL.contains(StringPool.DASH + StringPool.DASH)) {
            friendlyURL = StringUtil.replace(friendlyURL, StringPool.DASH + StringPool.DASH, StringPool.DASH);
        }

        if (friendlyURL.startsWith(StringPool.DASH)) {
            friendlyURL = friendlyURL.substring(1, friendlyURL.length());
        }

        if (friendlyURL.endsWith(StringPool.DASH)) {
            friendlyURL = friendlyURL.substring(0, friendlyURL.length() - 1);
        }

        /*return friendlyURL;*/
        return FilterTextsUtils.deleteStopWords(friendlyURL, StringPool.DASH);
    }

    public static String normalizeNoStopWords(String friendlyURL, char[] replaceChars) {
        if (Validator.isNull(friendlyURL)) {
            return friendlyURL;
        }

        friendlyURL = GetterUtil.getString(friendlyURL);
        friendlyURL = friendlyURL.toLowerCase();
        friendlyURL = AsciiUtils.convertNonAscii(friendlyURL);

        char[] charArray = friendlyURL.toCharArray();

        for (int i = 0; i < charArray.length; i++) {
            char oldChar = charArray[i];

            char newChar = oldChar;

            if (ArrayUtil.contains(_REPLACE_CHARS, oldChar)
                    || ((replaceChars != null) && ArrayUtil.contains(replaceChars, oldChar))) {

                newChar = CharPool.DASH;
            }

            if (oldChar != newChar) {
                charArray[i] = newChar;
            }
        }

        friendlyURL = new String(charArray);

        while (friendlyURL.contains(StringPool.DASH + StringPool.DASH)) {
            friendlyURL = StringUtil.replace(friendlyURL, StringPool.DASH + StringPool.DASH, StringPool.DASH);
        }

        if (friendlyURL.startsWith(StringPool.DASH)) {
            friendlyURL = friendlyURL.substring(1, friendlyURL.length());
        }

        if (friendlyURL.endsWith(StringPool.DASH)) {
            friendlyURL = friendlyURL.substring(0, friendlyURL.length() - 1);
        }

        return friendlyURL;
    }

    private static final char[] _REPLACE_CHARS = new char[] { ' ', ',', '\\', '\'', '\"', '(', ')', '{', '}', '?',
            '#', '@', '+', '~', ';', '$', '%', '\n', '<', '>', '*', '=', ':', '', '.', '/', '!' };

}