com.citruspay.JDateUtil.java Source code

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Here is the source code for com.citruspay.JDateUtil.java

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/*
O* * Copyright (c) 2012 CitrusPay. All Rights Reserved.
 *
 * This software is the proprietary information of CitrusPay.
 * Use is subject to license terms.
 */
package com.citruspay;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.TimeZone;

import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
import org.joda.time.Interval;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class JDateUtil {

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

    public final static String Asia_Kolkata = "Asia/Kolkata";
    public final static String UTC = "UTC";
    public final static String DEFAULT_DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm:ss";

    @SuppressWarnings("serial")
    private final static List<SimpleDateFormat> dateFormats = new ArrayList<SimpleDateFormat>() {
        {
            add(new SimpleDateFormat("dd/MM/yyyy HH:mm:ss"));
            add(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
        }
    };

    /***
     * Returns the start of date of a given date.
     * 
     * @param date
     * @return
     */
    public static DateTime startOfDay(DateTime date) {
        return date.withMillisOfSecond(0).withSecondOfMinute(0).withMinuteOfHour(0).withHourOfDay(0);
    }

    public static DateTime getDateAndTime(Date date) {
        DateTimeZone ISTTimeZone = DateTimeZone.forID(UTC);
        DateTime dateTime = new DateTime(date.getTime(), ISTTimeZone);
        return dateTime;
    }

    public static int noOfDays(DateTime start, DateTime end) {
        return (int) ((startOfDay(end).getMillis() - startOfDay(start).getMillis()) / (1000 * 60 * 60 * 24));
    }

    @SuppressWarnings("deprecation")
    public static DateTime getDateAndTime(String dailySettlementHr, String dailySettlementMin) {

        Date date = new Date();
        date.setHours((dailySettlementHr.length() < 2) ? Integer.valueOf("0" + dailySettlementHr)
                : Integer.valueOf(dailySettlementHr));
        date.setMinutes((dailySettlementMin.length() < 2) ? Integer.valueOf("0" + dailySettlementMin)
                : Integer.valueOf(dailySettlementMin));
        DateTimeZone ISTTimeZone = DateTimeZone.forID(UTC);
        System.out.println(" isttimezone=" + ISTTimeZone);
        DateTime dateTime = new DateTime(date.getTime(), ISTTimeZone);
        System.out.println(" dateTime=" + dateTime + "date=" + date + "date.getTime()=" + date.getTime());

        return dateTime;
    }

    public static Interval getISTPreviousDay() {
        DateTimeZone ISTTimeZone = DateTimeZone.forID(Asia_Kolkata);
        DateTime dateTime = new DateTime(ISTTimeZone);
        DateTime from = JDateUtil.startOfDay(dateTime.minusDays(1));
        DateTime to = JDateUtil.startOfDay(dateTime);
        return new Interval(from, to);
    }

    public static String getPGDate(String dateString) {
        SimpleDateFormat sdf = new SimpleDateFormat(DEFAULT_DATE_TIME_FORMAT);
        String formatedDate = null;
        Date date = null;
        for (SimpleDateFormat simpleDateFormat : dateFormats) {
            try {
                date = simpleDateFormat.parse(dateString);
            } catch (ParseException ex) {
                log.error("Parsing exception,continue with another format");
            }
            if (CommonUtil.isNotNull(date)) {
                formatedDate = sdf.format(date);
                break;
            }
        }

        return formatedDate;

    }

    public static String getDateStringInIST(Date date) {

        Calendar calendar = Calendar.getInstance();
        TimeZone timeZone = TimeZone.getTimeZone("GMT+05:30");
        calendar.setTime(date);
        SimpleDateFormat sdf = new SimpleDateFormat(DEFAULT_DATE_TIME_FORMAT);
        sdf.setTimeZone(timeZone);
        return sdf.format(calendar.getTime());
    }

    public static String getDateString(Date date) {
        SimpleDateFormat sdf = new SimpleDateFormat(DEFAULT_DATE_TIME_FORMAT);
        return sdf.format(date);
    }

}