Java Millisecond Format formatMillisecondsToConventional(long duration, int unitCount)

Description

Convert milliseconds value to a human-readable duration of mixed units, using units no larger than days.

License

Apache License

Parameter

Parameter	Description
duration	a parameter
unitCount	how many significant units to show, at most for example, a value of 2 would show days+hours or hours+seconds but not hours+second+milliseconds

Return

Human readable string version of passed time

Declaration

public static String formatMillisecondsToConventional(long duration, int unitCount) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

public class Main {
    /** milliseconds in an hour */
    private static final int HOUR_IN_MS = 60 * 60 * 1000;
    /** milliseconds in a day */
    private static final int DAY_IN_MS = 24 * HOUR_IN_MS;

    /**/*w  ww . j av a  2s . c  om*/
     * Convert milliseconds value to a human-readable duration
     * @param time
     * @return Human readable string version of passed <code>time</code>
     */
    public static String formatMillisecondsToConventional(long time) {
        return formatMillisecondsToConventional(time, 5);
    }

    /**
     * Convert milliseconds value to a human-readable duration of 
     * mixed units, using units no larger than days. For example,
     * "5d12h13m12s113ms" or "19h51m". 
     * 
     * @param duration
     * @param unitCount how many significant units to show, at most
     *  for example, a value of 2 would show days+hours or hours+seconds 
     *  but not hours+second+milliseconds
     * @return Human readable string version of passed <code>time</code>
     */
    public static String formatMillisecondsToConventional(long duration, int unitCount) {
        if (unitCount <= 0) {
            unitCount = 5;
        }
        if (duration == 0) {
            return "0ms";
        }
        StringBuffer sb = new StringBuffer();
        if (duration < 0) {
            sb.append("-");
        }
        long absTime = Math.abs(duration);
        long[] thresholds = { DAY_IN_MS, HOUR_IN_MS, 60000, 1000, 1 };
        String[] units = { "d", "h", "m", "s", "ms" };

        for (int i = 0; i < thresholds.length; i++) {
            if (absTime >= thresholds[i]) {
                sb.append(absTime / thresholds[i] + units[i]);
                absTime = absTime % thresholds[i];
                unitCount--;
            }
            if (unitCount == 0) {
                break;
            }
        }
        return sb.toString();
    }
}

Related

1. formatMilliseconds (final long ms)
2. formatMilliseconds(Double milliseconds)
3. formatMilliseconds(long milliseconds)
4. formatMilliseconds(long milliseconds)
5. formatMilliSecondsHumanReadable(long x)
6. formatMillisecondsToConventional(long time)
7. formatMillisTime(long millis)
8. formatMillisTimeGMT(long millis)
9. formatSystemTime(long millis)