Mega Code Archive
Time Formatter
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/**
* This file is distributed under the GPL
* $Id: TimeFormatter.java 1865 2009-08-10 18:29:27Z scotta $
*/
//package net.bnubot.util;
import java.text.DateFormat;
import java.text.ParseException;
import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;
/**
* @author scotta
*/
public class TimeFormatter {
public static final long SECOND = 1000;
public static final long MINUTE = 60 * SECOND;
public static final long HOUR = 60 * MINUTE;
public static final long DAY = 24 * HOUR;
public static final long WEEK = 7 * DAY;
public static TimeZone timeZone = TimeZone.getDefault();
public static String tsFormat = "%1$tH:%1$tM:%1$tS.%1$tL";
public static Calendar getCalendar() {
return Calendar.getInstance(timeZone);
}
/**
* @return a nicely formatted timestamp
*/
public static String getTimestamp() {
try {
return String.format(tsFormat, getCalendar());
} catch(NoSuchMethodError e) {
return "";
}
}
/**
* Display a formatted length of time
* @param time The time, in milliseconds
* @return A String with the formatted length of time
*/
public static String formatTime(long time) {
return formatTime(time, true);
}
/**
* Display a formatted length of time
* @param time The time, in milliseconds
* @param ms Whether to display milliseconds
* @return A String with the formatted length of time
*/
public static String formatTime(long time, boolean ms) {
if(time < 0)
return "(neg) " + formatTime(time * -1, ms);
if(time == 0)
return ms ? "0ms" : "0s";
String text = "";
if(ms) {
if(time < 1000*60) // 60 seconds
text = Long.toString(time % 1000) + "ms";
time /= 1000;
} else {
time--;
time /= 1000;
time++;
}
if(time > 0) {
if(time < 60*60) // 60 minutes
text = Long.toString(time % 60) + "s " + text;
time /= 60;
if(time > 0) {
if(time < 60*24) // 24 hours
text = Long.toString(time % 60) + "m " + text;
time /= 60;
if(time > 0) {
if(time < 24*7) // 7 days
text = Long.toString(time % 24) + "h " + text;
time /= 24;
if(time > 0)
text = Long.toString(time) + "d " + text;
}
}
}
return text.trim();
}
public static long parseDuration(String duration)
throws NumberFormatException {
long out = 0;
for(String part : duration.split(" ")) {
if(part.length() == 0)
continue;
int i = 0;
for(; i < part.length(); i++) {
char c = part.charAt(i);
if((c < '0') || (c > '9'))
break;
}
long base = Long.parseLong(part.substring(0, i));
String unit = part.substring(i).toLowerCase();
switch(unit.charAt(0)) {
case 's':
if("s".equals(unit)
|| "second".equals(unit)
|| "seconds".equals(unit)) {
out += base * SECOND;
continue;
}
break;
case 'm':
if("m".equals(unit)
|| "min".equals(unit)
|| "mins".equals(unit)
|| "minute".equals(unit)
|| "minutes".equals(unit)) {
out += base * MINUTE;
continue;
}
break;
case 'h':
if("h".equals(unit)
|| "hour".equals(unit)
|| "hours".equals(unit)) {
out += base * HOUR;
continue;
}
break;
case 'd':
if("d".equals(unit)
|| "day".equals(unit)
|| "days".equals(unit)) {
out += base * DAY;
continue;
}
break;
case 'w':
if("w".equals(unit)
|| "week".equals(unit)
|| "weeks".equals(unit)) {
out += base * WEEK;
continue;
}
break;
}
throw new NumberFormatException("Invalid unit: " + unit);
}
return out;
}
/**
* Converts a Windows FileTime structure to a Date
* @param ft contains a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601 (UTC).
* @return a Date with the correct time
*/
public static Date fileTime(long ft) {
// Date.parse("1/1/1601") == 11644455600000L
long date = ft / 10000 - 11644455600000L;
date += timeZone.getOffset(date);
return new Date(date);
}
private static DateFormat df = DateFormat.getDateInstance();
private static DateFormat dtf = DateFormat.getDateTimeInstance();
public static long parseDate(String d) throws ParseException {
df.setCalendar(getCalendar());
return df.parse(d).getTime();
}
public static String formatDate(Date d) {
df.setCalendar(getCalendar());
return df.format(d);
}
public static long parseDateTime(String dt) throws ParseException {
dtf.setCalendar(getCalendar());
return dtf.parse(dt).getTime();
}
public static String formatDateTime(Date d) {
dtf.setCalendar(getCalendar());
return dtf.format(d);
}
}
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