Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 * Copyright (C) 2015 52North Initiative for Geospatial Open Source
 * Software GmbH
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation.
 *
 * If the program is linked with libraries which are licensed under one of
 * the following licenses, the combination of the program with the linked
 * library is not considered a "derivative work" of the program:
 *
 *        Apache License, version 2.0
 *        Apache Software License, version 1.0
 *        GNU Lesser General Public License, version 3
 *        Mozilla Public License, versions 1.0, 1.1 and 2.0
 *        Common Development and Distribution License (CDDL), version 1.0
 *
 * Therefore the distribution of the program linked with libraries licensed
 * under the aforementioned licenses, is permitted by the copyright holders
 * if the distribution is compliant with both the GNU General Public
 * License version 2 and the aforementioned licenses.
 *
 * This program 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.
 */

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.Locale;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

import org.w3c.dom.NodeList;

public class Main {
    /**
     * Method to check difference between actual time and saved time in xml file.
     * 
     * @param target document
     * @return time difference as integer
     * @throws ParseException
     */
    public static int checkDateDifference(Document target) throws ParseException {
        int diff = 0;
        NodeList parents = target.getElementsByTagName("g:options");
        Element parent = (Element) parents.item(0); //g:options - only 1 element
        DateFormat format = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss", Locale.ENGLISH);
        //date xml
        String time = parent.getAttribute("time");
        Date oldT = format.parse(time);
        //date now
        Date newT = new Date();
        //compare
        diff = (int) ((newT.getTime() - oldT.getTime()) / 1000);
        return diff;
    }
}