Java TimeUnit Usage getDeltaBetweenTimestamps(final long start, final long end)

Description

Provides delta between timestamps in format "X Days XXhr XXm XXs".

License

Apache License

Parameter

Parameter	Description
start	timestamp of the beginning
end	timestamp of the end

Return

delta between timestamps as a string

Declaration

public static String getDeltaBetweenTimestamps(final long start, final long end) 

Method Source Code

//package com.java2s;
/*/*w w w .  j a va2 s.  c om*/
 * Copyright 2018 MovingBlocks
 *
 * 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.
 */

import java.util.concurrent.TimeUnit;

public class Main {
    /**
     * Provides delta between timestamps in format "X Days XXhr XXm XXs". Days are optional.
     *
     * @param start timestamp of the beginning
     * @param end   timestamp of the end
     * @return delta between timestamps as a string
     */
    public static String getDeltaBetweenTimestamps(final long start, final long end) {
        if (start < 0 || end < 0 || start > end) {
            throw new IllegalArgumentException("Wrong timestamp values: " + start + " or " + end);
        }
        TimeUnit timeUnit = TimeUnit.SECONDS;

        long diffInMilliseconds = end - start;
        long s = timeUnit.convert(diffInMilliseconds, TimeUnit.MILLISECONDS);

        long days = s / (24 * 60 * 60);
        long rest = s - (days * 24 * 60 * 60);
        long hrs = rest / (60 * 60);
        long rest1 = rest - (hrs * 60 * 60);
        long min = rest1 / 60;
        long sec = s % 60;

        StringBuilder builder = new StringBuilder();

        if (days > 0) {
            builder.append(days);
            builder.append(" Days ");
        }

        builder.append(fill2(hrs));
        builder.append("h ");

        builder.append(fill2(min));
        builder.append("m ");

        builder.append(fill2(sec));
        builder.append("s");
        return builder.toString();
    }

    private static String fill2(final long value) {
        String ret = String.valueOf(value);
        return ret.length() < 2 ? "0" + ret : ret;
    }
}

Related

1. getDateBefore(final Date day)
2. getDateWithoutTime(final Calendar calendar)
3. getDayFromTimestamp(final long unixTimestamp)
4. getDays(final long ms)
5. getDays(long endTs, Long lookback)
6. getDifferenceDays(Date d1, Date d2)
7. getDiffInMinutes(Calendar startTime, Calendar endTime)
8. getDurationBreakdown(long millis)
9. getDurationBreakdown(long millis)