utils.DateUtils.java Source code

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Here is the source code for utils.DateUtils.java

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/**
* Copyright (c) 2015 Mustafa DUMLUPINAR, mdumlupinar@gmail.com
*
* This file is part of seyhan project.
*
* seyhan 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.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package utils;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import org.joda.time.DateTime;
import org.joda.time.Days;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author mdpinar
*/
public class DateUtils {

    private final static Logger log = LoggerFactory.getLogger(DateUtils.class);

    private static final SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");
    private static final SimpleDateFormat sdfForDB = new SimpleDateFormat("yyyy-MM-dd");
    private static final SimpleDateFormat sdfLongForDB = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
    private static final SimpleDateFormat sdfForTrans = new SimpleDateFormat("yyyy-MM");
    private static final SimpleDateFormat sdfStandart = new SimpleDateFormat("dd/MM/yyyy");

    public static String formatDateForDB(Date date) {
        if (date != null)
            return "'" + sdfForDB.format(date) + "'";
        else
            return "";
    }

    public static String formatLongDateForDB(Date date) {
        if (date != null)
            return "'" + sdfLongForDB.format(date) + "'";
        else
            return "";
    }

    public static String formatDateStandart(Date date) {
        if (date != null)
            return sdfStandart.format(date);
        else
            return "";
    }

    public static String formatDate(Date date, String format) {
        if (date != null) {
            SimpleDateFormat formatPattern = new SimpleDateFormat(format);
            return formatPattern.format(date);
        } else {
            return "";
        }
    }

    public static String formatReverseDate(Date date) {
        if (date != null)
            return sdfForDB.format(date);
        else
            return "";
    }

    public static String today(String format) {
        return new SimpleDateFormat(format).format(new Date());
    }

    public static Date today() {
        return getZeroTime(new Date());
    }

    public static Date getZeroTime(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        cal.set(Calendar.HOUR_OF_DAY, 0);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MILLISECOND, 0);

        return cal.getTime();
    }

    public static Date getFirstDayOfMonth() {
        Calendar now = Calendar.getInstance();
        now.set(Calendar.DAY_OF_MONTH, 1);

        return now.getTime();
    }

    public static Date getFirstDayOfYear() {
        Calendar now = Calendar.getInstance();
        now.set(Calendar.DAY_OF_MONTH, 1);
        now.set(Calendar.MONTH, 0);

        return now.getTime();
    }

    public static Date findFirstDayOfPastMonth() {
        DateTime dt = new DateTime();

        return dt.minusMonths(1).dayOfMonth().withMinimumValue().toDate();
    }

    public static Date findLastDayOfPastMonth() {
        DateTime dt = new DateTime();

        return dt.minusMonths(1).dayOfMonth().withMaximumValue().toDate();
    }

    public static Date findLastMonth() {
        DateTime dt = new DateTime();

        return dt.minusMonths(1).toDate();
    }

    public static Date findFirstDay(String yyyymm) {
        try {
            return sdf.parse(yyyymm + "/01");
        } catch (ParseException e) {
            e.printStackTrace();
        }

        return null;
    }

    public static Date findLastDay(String yyyymm) {
        for (int i = 31; i > 27; i--) {
            try {
                return sdf.parse(yyyymm + "/" + i);
            } catch (ParseException e) {
                ;
            }
        }

        return null;
    }

    public static Date parse(String date, String format) {
        try {
            return new SimpleDateFormat(format).parse(date);
        } catch (ParseException e) {
            log.error(e.getMessage());
        }

        return null;
    }

    public static boolean isGreateThan(Date lesser, Date bigger) {
        if (lesser == null || bigger == null)
            return false;

        Days days = Days.daysBetween(new DateTime(bigger), new DateTime(lesser));
        return (days.getDays() > 0);
    }

    public static boolean isLessThan(Date lesser, Date bigger) {
        if (lesser == null || bigger == null)
            return false;

        Days days = Days.daysBetween(new DateTime(bigger), new DateTime(lesser));
        return (days.getDays() <= 0);
    }

    public static int getYear(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);

        return cal.get(Calendar.YEAR);
    }

    public static String getYearMonth(Date date) {
        return sdfForTrans.format(date);
    }

    public static String getYearForSQL(String field) {
        return "YEAR(" + field + ")";
    }

    public static String getYearMonthForSQL(String field) {
        if (GlobalCons.dbVendor.equals("mysql")) {
            return "DATE_FORMAT(" + field + ",'%Y-%m')";
        }
        if (GlobalCons.dbVendor.equals("h2")) {
            return "FORMATDATETIME(" + field + ",'yyyy-MM')";
        }
        if (GlobalCons.dbVendor.equals("sqlserver")) {
            return "CONVERT(VARCHAR(7), " + field + ", 126)";
        }

        return "TO_CHAR(" + field + ",'YYYY-MM')";
    }

}