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18 package org.apache.log4j.helpers;
19
20 import java.util.Date;
21 import java.util.Calendar;
22 import java.util.TimeZone;
23 import java.text.FieldPosition;
24 import java.text.ParsePosition;
25 import java.text.DateFormat;
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37 public class AbsoluteTimeDateFormat extends DateFormat {
38 private static final long serialVersionUID = -388856345976723342L;
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44 public final static String ABS_TIME_DATE_FORMAT = "ABSOLUTE";
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51 public final static String DATE_AND_TIME_DATE_FORMAT = "DATE";
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58 public final static String ISO8601_DATE_FORMAT = "ISO8601";
59
60 public
61 AbsoluteTimeDateFormat() {
62 setCalendar(Calendar.getInstance());
63 }
64
65 public
66 AbsoluteTimeDateFormat(TimeZone timeZone) {
67 setCalendar(Calendar.getInstance(timeZone));
68 }
69
70 private static long previousTime;
71 private static char[] previousTimeWithoutMillis = new char[9];
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81 public
82 StringBuffer format(Date date, StringBuffer sbuf,
83 FieldPosition fieldPosition) {
84
85 long now = date.getTime();
86 int millis = (int)(now % 1000);
87
88 if ((now - millis) != previousTime || previousTimeWithoutMillis[0] == 0) {
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93 calendar.setTime(date);
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95 int start = sbuf.length();
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97 int hour = calendar.get(Calendar.HOUR_OF_DAY);
98 if(hour < 10) {
99 sbuf.append('0');
100 }
101 sbuf.append(hour);
102 sbuf.append(':');
103
104 int mins = calendar.get(Calendar.MINUTE);
105 if(mins < 10) {
106 sbuf.append('0');
107 }
108 sbuf.append(mins);
109 sbuf.append(':');
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111 int secs = calendar.get(Calendar.SECOND);
112 if(secs < 10) {
113 sbuf.append('0');
114 }
115 sbuf.append(secs);
116 sbuf.append(',');
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118
119 sbuf.getChars(start, sbuf.length(), previousTimeWithoutMillis, 0);
120
121 previousTime = now - millis;
122 }
123 else {
124 sbuf.append(previousTimeWithoutMillis);
125 }
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129 if(millis < 100)
130 sbuf.append('0');
131 if(millis < 10)
132 sbuf.append('0');
133
134 sbuf.append(millis);
135 return sbuf;
136 }
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141 public
142 Date parse(String s, ParsePosition pos) {
143 return null;
144 }
145 }