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* *
* The MIT License (MIT) *
* *
* Copyright (c) 2015-2022 aoju.org Greg Messner and other contributors. *
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* Permission is hereby granted, free of charge, to any person obtaining a copy *
* of this software and associated documentation files (the "Software"), to deal *
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* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included in *
* all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
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package org.aoju.bus.gitlab.models;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonValue;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* This class represents a duration in time.
*/
public class Duration {
private static final String[] TIME_UNITS = {"mo", "w", "d", "h", "m", "s"};
private static final int[] TIME_UNIT_MULTIPLIERS = {
60 * 60 * 8 * 5 * 4, // 4 weeks = 1 month
60 * 60 * 8 * 5, // 5 days = 1 week
60 * 60 * 8, // 8 hours = 1 day
60 * 60, // 60 minutes = 1 hours
60, // 60 seconds = 1 minute
1
};
private static Pattern durationPattern = Pattern.compile("(\\s*(\\d+)(mo|[wdhms]))");
private int seconds;
private String durationString;
/**
* Create a Duration instance from a human readable string. e.g: 3h30m
*
* @param durationString a duration in human readable format
*/
public Duration(String durationString) {
seconds = parse(durationString);
this.durationString = (seconds == 0 ? "0m" : toString(seconds));
}
/**
* Create a Duration instance from a number of seconds.
*
* @param seconds the number of seconds for this Duration instance to represent
*/
public Duration(int seconds) {
this.seconds = seconds;
durationString = (seconds == 0 ? "0m" : toString(seconds));
}
@JsonCreator
public static Duration forValue(String value) {
return new Duration(value);
}
/**
* Create a human readable duration string from seconds.
*
* @param durationSeconds the total number of seconds in the duration
* @return a human readable string representing the duration
*/
public static final String toString(int durationSeconds) {
return toString(durationSeconds, true);
}
/**
* Create a human readable duration string from seconds.
*
* @param durationSeconds the total number of seconds in the duration
* @param includeMonths when true will include months "mo", in the string otherwise
* uses "4w" for each month
* @return a human readable string representing the duration
*/
public static final String toString(int durationSeconds, boolean includeMonths) {
int seconds = durationSeconds;
int months = (includeMonths ? seconds / TIME_UNIT_MULTIPLIERS[0] : 0);
seconds -= months * TIME_UNIT_MULTIPLIERS[0];
int weeks = seconds / TIME_UNIT_MULTIPLIERS[1];
seconds -= weeks * TIME_UNIT_MULTIPLIERS[1];
int days = seconds / TIME_UNIT_MULTIPLIERS[2];
seconds -= days * TIME_UNIT_MULTIPLIERS[2];
int hours = seconds / 3600;
seconds -= hours * 3600;
int minutes = seconds / 60;
seconds -= minutes * 60;
StringBuilder buf = new StringBuilder();
if (months > 0) {
buf.append(months).append("mo");
if (weeks > 0) {
buf.append(weeks).append('w');
}
if (seconds > 0) {
buf.append(days).append('d').append(hours).append('h').append(minutes).append('m').append(seconds).append('s');
} else if (minutes > 0) {
buf.append(days).append('d').append(hours).append('h').append(minutes).append('m');
} else if (hours > 0) {
buf.append(days).append('d').append(hours).append('h');
} else if (days > 0) {
buf.append(days).append('d');
}
} else if (weeks > 0) {
buf.append(weeks).append('w');
if (seconds > 0) {
buf.append(days).append('d').append(hours).append('h').append(minutes).append('m').append(seconds).append('s');
} else if (minutes > 0) {
buf.append(days).append('d').append(hours).append('h').append(minutes).append('m');
} else if (hours > 0) {
buf.append(days).append('d').append(hours).append('h');
} else if (days > 0) {
buf.append(days).append('d');
}
} else if (days > 0) {
buf.append(days).append('d');
if (seconds > 0) {
buf.append(hours).append('h').append(minutes).append('m').append(seconds).append('s');
} else if (minutes > 0) {
buf.append(hours).append('h').append(minutes).append('m');
} else if (hours > 0) {
buf.append(hours).append('h');
}
} else if (hours > 0) {
buf.append(hours).append('h');
if (seconds > 0) {
buf.append(minutes).append('m').append(seconds).append('s');
} else if (minutes > 0) {
buf.append(minutes).append('m');
}
} else if (minutes > 0) {
buf.append(minutes).append('m');
if (seconds > 0) {
buf.append(seconds).append('s');
}
} else {
buf.append(' ').append(seconds).append('s');
}
return (buf.toString());
}
/**
* Parses a human readable duration string and calculates the number of seconds it represents.
*
* @param durationString the human readable duration
* @return the total number of seconds in the duration
*/
public static final int parse(String durationString) {
durationString = durationString.toLowerCase();
Matcher matcher = durationPattern.matcher(durationString);
int currentUnitIndex = -1;
int seconds = 0;
Boolean validDuration = null;
while (matcher.find() && validDuration != Boolean.FALSE) {
validDuration = true;
int numGroups = matcher.groupCount();
if (numGroups == 3) {
String unit = matcher.group(3);
int nextUnitIndex = getUnitIndex(unit);
if (nextUnitIndex > currentUnitIndex) {
currentUnitIndex = nextUnitIndex;
try {
seconds += Long.parseLong(matcher.group(2)) * TIME_UNIT_MULTIPLIERS[nextUnitIndex];
} catch (NumberFormatException nfe) {
validDuration = false;
}
} else {
validDuration = false;
}
} else {
validDuration = false;
}
}
if (validDuration != Boolean.TRUE) {
throw new IllegalArgumentException(String.format("'%s' is not a valid duration", durationString));
}
return (seconds);
}
private static final int getUnitIndex(String unit) {
for (int i = 0; i < TIME_UNITS.length; i++) {
if (unit.equals(TIME_UNITS[i]))
return (i);
}
return (-1);
}
/**
* Get the number of seconds this duration represents.
*
* @return the number of seconds this duration represents
*/
public int getSeconds() {
return (seconds);
}
/**
* Set the number of seconds this duration represents.
*
* @param seconds the number of seconds this duration represents
*/
public void setSeconds(int seconds) {
this.seconds = seconds;
}
@JsonValue
@Override
public String toString() {
return (durationString);
}
}
