Java Duration Format formatDuration(long duration, boolean simplify, boolean includeMillies)

Description

format Duration

License

Open Source License

Declaration

public static String formatDuration(long duration, boolean simplify, boolean includeMillies) 

Method Source Code

//package com.java2s;
/*/*from w w  w.  j ava  2 s .c o  m*/
 * (c) Copyright 2007-2013 by Volker Bergmann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, is permitted under the terms of the
 * GNU General Public License.
 *
 * For redistributing this software or a derivative work under a license other
 * than the GPL-compatible Free Software License as defined by the Free
 * Software Foundation or approved by OSI, you must first obtain a commercial
 * license to this software product from Volker Bergmann.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
 * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
 * HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

public class Main {
    public static String formatDuration(long duration, boolean simplify, boolean includeMillies) {
        // calculate parts
        int hours = (int) (duration / 3600000);
        duration -= hours * 3600000;
        int minutes = (int) (duration / 60000);
        duration -= 60000 * minutes;
        int seconds = (int) (duration / 1000);
        int millis = (int) (duration - seconds * 1000);
        // format string
        if (simplify)
            return formatSimplified(hours, minutes, seconds, millis, includeMillies);
        else
            return formatFixed(hours, minutes, seconds, millis, includeMillies);
    }

    private static String formatSimplified(int hours, int minutes, int seconds, int millis,
            boolean includeMillies) {
        StringBuilder builder = new StringBuilder();
        String unit = null;
        if (hours > 0) {
            builder.append(hours);
            unit = " h";
        }
        if (minutes > 0 || seconds > 0 || (includeMillies && millis > 0)) {
            if (unit != null) {
                builder.append(':');
                if (minutes < 10)
                    builder.append('0');
            }
            if (unit != null || minutes > 0) {
                builder.append(minutes);
                if (minutes > 0 && unit == null)
                    unit = " min";
            }
            if (seconds > 0 || (includeMillies && millis > 0)) {
                if (unit != null) {
                    builder.append(':');
                    if (seconds < 10)
                        builder.append('0');
                }
                builder.append(seconds);
                if (unit == null)
                    unit = " s";
                if (includeMillies)
                    appendMillis(millis, builder);
            }
        } else if (builder.length() == 0) {
            builder.append("0");
            unit = " s";
        }

        builder.append(unit);
        return builder.toString();
    }

    private static String formatFixed(int hours, int minutes, int seconds, int millis, boolean includeMillies) {
        StringBuilder builder = new StringBuilder();
        builder.append(hours).append(':');
        if (minutes < 10)
            builder.append('0');
        builder.append(minutes);
        builder.append(':');
        if (seconds < 10)
            builder.append('0');
        builder.append(seconds);
        if (includeMillies)
            appendMillis(millis, builder);
        builder.append(" h");
        return builder.toString();
    }

    private static void appendMillis(int millis, StringBuilder builder) {
        builder.append(".");
        if (millis < 100)
            builder.append('0');
        if (millis < 10)
            builder.append('0');
        builder.append(millis);
    }
}

Related

1. formatDuration(long duration)
2. formatDuration(long duration)
3. formatDuration(long duration)
4. formatDuration(long duration)
5. formatDuration(long duration, boolean displayMilliseconds)
6. formatDuration(long durationInMs)
7. formatDuration(long durationMillis)
8. formatDuration(long durationSec)
9. formatDuration(long elapsed)