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3
4 package net.sourceforge.pmd.util;
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6
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8
9
10 public class DateTimeUtil {
11
12 private DateTimeUtil() {}
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14
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18
19 public static String asHoursMinutesSeconds(long milliseconds) {
20
21 if (milliseconds < 0) throw new IllegalArgumentException();
22
23 long seconds = 0;
24 long minutes = 0;
25 long hours = 0;
26
27 if (milliseconds > 1000) {
28 seconds = milliseconds / 1000;
29 }
30
31 if (seconds > 60) {
32 minutes = seconds / 60;
33 seconds = seconds % 60;
34 }
35
36 if (minutes > 60) {
37 hours = minutes / 60;
38 minutes = minutes % 60;
39 }
40
41 StringBuilder res = new StringBuilder();
42 if (hours > 0) {
43 res.append(hours).append("h ");
44 }
45 if (hours > 0 || minutes > 0) {
46 res.append(minutes).append("m ");
47 }
48 res.append(seconds).append('s');
49 return res.toString();
50 }
51 }