net.sf.zekr.common.util.CommonUtils.java Source code

Introduction

Here is the source code for net.sf.zekr.common.util.CommonUtils.java

Source

/*
 *               In the name of Allah
 * This file is part of The Zekr Project. Use is subject to
 * license terms.
 *
 * Author:         Mohsen Saboorian
 * Start Date:     Oct 26, 2009
 */
package net.sf.zekr.common.util;

import org.apache.commons.lang.StringUtils;

/**
 * @author Mohsen Saboorian
 */
public class CommonUtils {
    public static final Runnable EMPTY_RUNNABLE = new Runnable() {
        public void run() {
        }
    };

    /**
     * The two parameters should be exactly of type x.y.z, in which all x and y and z are integer numbers: 0-9.
     * 
     * @param ver1
     * @param ver2
     * @return
     */
    public static int compareVersions(String ver1, String ver2) {
        String[] v1 = StringUtils.split(ver1, ".");
        String[] v2 = StringUtils.split(ver2, ".");
        int k = Integer.parseInt(v1[0]) - Integer.parseInt(v2[0]);
        if (k != 0) {
            return k;
        }
        k = Integer.parseInt(v1[1]) - Integer.parseInt(v2[1]);
        if (k != 0) {
            return k;
        }
        k = Integer.parseInt(v1[2]) - Integer.parseInt(v2[2]);
        return k;
    }
}