Java Millisecond Format formatMillisAsShortHumanReadablePeriod(long millis)

Description

Format the given milliseconds as a human readable time period

License

Apache License

Parameter

Parameter	Description
millis	milliseconds

Return

a formatted time period

Declaration

public static String formatMillisAsShortHumanReadablePeriod(long millis) 

Method Source Code

//package com.java2s;
/*/*from  w w  w  .j a  v a  2  s  .  c  o m*/
 * Copyright 2007 the original author or authors.
 *
 * 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.
 */

public class Main {
    private static final long MILLIS_PER_SECOND = 1000;
    private static final long MILLIS_PER_MINUTE = MILLIS_PER_SECOND * 60;
    private static final long MILLIS_PER_HOUR = MILLIS_PER_MINUTE * 60;
    private static final long MILLIS_PER_DAY = MILLIS_PER_HOUR * 24;

    /**
     * Format the given milliseconds as a human readable time period
     * @param millis milliseconds
     * @return a formatted time period
     */
    public static String formatMillisAsShortHumanReadablePeriod(long millis) {
        return formatMillisAsShortHumanReadablePeriod(millis, false);
    }

    /**
     * Format the given milliseconds as a human readable time period
     * @param millis milliseconds
     * @param full if true include the smaller units in all output
     * @return a formatted time period
     */
    public static String formatMillisAsShortHumanReadablePeriod(
            long millis, boolean full) {
        StringBuffer buf = new StringBuffer();
        // days
        long days = (millis / MILLIS_PER_DAY);
        if (days > 0) {
            buf.append(days).append(" days");
            millis -= days * MILLIS_PER_DAY;
        }
        long hours = (millis / MILLIS_PER_HOUR);
        if ((full && days > 0) || hours > 0) {
            appendWithLeadingCommaIfNescessary(buf, hours).append(" hrs");
            millis -= hours * MILLIS_PER_HOUR;
        }
        long minutes = (millis / MILLIS_PER_MINUTE);
        if ((full && (days > 0 || hours > 0)) || minutes > 0) {
            appendWithLeadingCommaIfNescessary(buf, minutes)
                    .append(" mins");
            millis -= minutes * MILLIS_PER_MINUTE;
        }
        long seconds = (millis / MILLIS_PER_SECOND);
        if (full || !(days > 0)) {
            if ((full && (minutes > 0 || hours > 0 || days > 0))
                    || seconds > 0) {
                appendWithLeadingCommaIfNescessary(buf, seconds).append(
                        " secs");
                millis -= seconds * MILLIS_PER_SECOND;
            }
        }
        if (full || !(minutes > 0 || hours > 0 || days > 0)) {
            if ((full && (seconds > 0 || minutes > 0 || hours > 0 || days > 0))
                    || millis > 0) {
                appendWithLeadingCommaIfNescessary(buf, millis).append(
                        " ms");
            }
        }
        return buf.toString();
    }

    private static StringBuffer appendWithLeadingCommaIfNescessary(
            StringBuffer buf, long arg) {
        if (buf.length() > 0) {
            buf.append(", ");
        }
        return buf.append(arg);
    }
}

Related

1. formatMillis(long time)
2. formatMillis(long time, boolean showMillis)
3. formatMillis(long timeMillis)
4. formatMillis(String millisecond, String format)
5. formatMillisAsNumber(long millis)
6. formatMilliseconds (final long ms)
7. formatMilliseconds(Double milliseconds)
8. formatMilliseconds(long milliseconds)
9. formatMilliseconds(long milliseconds)