ch.ethz.polyql.jql.domain.shared.TextUtil.java Source code

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Here is the source code for ch.ethz.polyql.jql.domain.shared.TextUtil.java

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/**
 * jQL - Calculation of Chemical Speciation in Aqueous Solution
 *
 * Copyright (C) 2009 Michael Gfeller, <mgfeller@mgfeller.net> - <http://www.mgfeller.net>
 *
 * This file is part of jQL.
 *
 * jQL is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * jQL 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with jQL.  If not, see <http://www.gnu.org/licenses/>.
 */
package ch.ethz.polyql.jql.domain.shared;

import org.apache.commons.lang.StringUtils;

// TODO: Auto-generated Javadoc
/**
 * Author: Michael Gfeller.
 */
public final class TextUtil {

    /** The Constant NEW_LINE. */
    private static final String NEW_LINE = System.getProperty("line.separator");

    /**
     * Instantiates a new text util.
     */
    private TextUtil() {
    }

    /**
     * Checks if is empty.
     *
     * @param text the text
     * @return true, if is empty
     */
    public static boolean isEmpty(final String text) {
        return (text == null) || ("".equals(text.trim()));
    }

    /**
     * Empty if null.
     *
     * @param text the text
     * @return the string
     */
    public static String emptyIfNull(final String text) {
        return (text == null) ? "" : text;
    }

    /**
     * Compare ignore case.
     *
     * @param text1 the text1
     * @param text2 the text2
     * @return the int
     */
    public static int compareIgnoreCase(final String text1, final String text2) {
        return emptyIfNull(text1).compareToIgnoreCase(emptyIfNull(text2));
    }

    /**
     * System dependent newline.
     *
     * @param text the text
     * @return the string
     */
    public static String systemDependentNewline(final String text) {
        if (text == null) {
            return text;
        } else {
            return text.replaceAll("\n", NEW_LINE);
        }
    }

    /**
     * Join.
     *
     * @param text the text
     * @return the string
     */
    public static String join(final String[] text) {

        return StringUtils.join(text, "\n");

    }

}