TimeAgo

DateUtil.java

/*
 * Copyright 2014. Alashov Berkeli
 *
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package tm.veriloft.ertir.util;

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

public class DateUtil {
    public static SimpleDateFormat hourMinuteFormat = new SimpleDateFormat("HH:mm");

    /**
     * Convert Java {@link java.util.Date} objects in just "a few minutes"
     *
     * @param date date object for convert
     * @return converted readable date
     */
    public static String getTimeAgo( Date date ) {

        if (date == null) {
            return null;
        }

        String timeAgo;
        Date curDate = currentDate();
        long time = date.getTime();
        long now = curDate.getTime();

        if (time > now || time <= 0) return null;

        int dim = getTimeDistanceInMinutes(time);
        if (dim == 0)
            if (getTimeDistanceInSeconds(time) < 10) timeAgo = "şuwagtjyk";
            else timeAgo = getTimeDistanceInSeconds(time) + " sekunt öň";
        else if (dim == 1)
            return "1 " + "minut öň";
        else if (dim >= 2 && dim <= 44)
            timeAgo = dim + " minut öň";
        else if (dim >= 45 && dim <= 69)
            timeAgo = "1 sagat öň";
        else if (dim >= 70 && dim <= 1439)
            timeAgo = (Math.round(dim / 60)) + " sagat öň" + ", " + hourMinuteFormat.format(date.getTime());
        else if (dim >= 1440 && dim <= 2519)
            timeAgo = "1 gün öň" + ", " + hourMinuteFormat.format(date.getTime());
        else if (dim >= 2520 && dim <= 43199)
            timeAgo = (Math.round(dim / 1440)) + " gün öň" + ", " + hourMinuteFormat.format(date.getTime());
        else if (dim >= 43200 && dim <= 86399)
            timeAgo = "1 aý öň, " + getHumanDateWithoutYear(time);
        else if (dim >= 86400 && dim <= 525599)
            timeAgo = (Math.round(dim / 43200)) + " aý öň, " + getHumanDateWithoutYear(time);
        else
            timeAgo = getHumanDate(time);
        return timeAgo;
    }

    private static int getTimeDistanceInMinutes( long time ) {
        long timeDistance = currentDate().getTime() - time;
        return Math.round((Math.abs(timeDistance) / 1000) / 60);
    }

    private static int getTimeDistanceInSeconds( long time ) {
        long timeDistance = currentDate().getTime() - time;
        return Math.round((Math.abs(timeDistance) / 1000));
    }

    private static Date currentDate() {
        Calendar calendar = Calendar.getInstance();
        return calendar.getTime();
    }

    /**
     * @param time timestamp in milliseconds
     * @return "01 Ýan 2015ý 22:15" like date
     */
    private static String getHumanDate( long time ) {
        Calendar date = Calendar.getInstance();
        date.setTimeInMillis(time);
        return date.get(Calendar.DAY_OF_MONTH) + " " + getShortMonthName(date.get(Calendar.MONTH)) + " " + date.get(Calendar.YEAR) + "ý " + hourMinuteFormat.format(date.getTime());
    }

    /**
     * @param time timestamp in milliseconds
     * @return "01 Ýan 22:15" like date
     */
    private static String getHumanDateWithoutYear( long time ) {
        Calendar date = Calendar.getInstance();
        date.setTimeInMillis(time);
        return date.get(Calendar.DAY_OF_MONTH) + " " + getShortMonthName(date.get(Calendar.MONTH)) + " " + hourMinuteFormat.format(date.getTime());
    }

    /**
     * Get Short Localised Month name by month index
     *
     * @param month index of month, in 0-11 range
     * @return short month name
     */
    private static String getShortMonthName( int month ) {
        if (month < 0 || month > 11) return "null";
        String[] months = {"Ýan", "Few", "Mart", "Apr", "Maý", "Iýun", "Iýul", "Awg", "Sen", "Okt", "Noý", "Dek"};
        return months[month];
    }

}