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14 package ch.qos.logback.classic.pattern;
15
16 import java.time.ZoneId;
17 import java.util.List;
18 import java.util.Locale;
19
20 import ch.qos.logback.classic.spi.ILoggingEvent;
21 import ch.qos.logback.core.CoreConstants;
22 import ch.qos.logback.core.util.CachingDateFormatter;
23
24 public class DateConverter extends ClassicConverter {
25
26 long lastTimestamp = -1;
27 String timestampStrCache = null;
28 CachingDateFormatter cachingDateFormatter = null;
29
30 public void start() {
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32 String datePattern = getFirstOption();
33 if (datePattern == null) {
34 datePattern = CoreConstants.ISO8601_PATTERN;
35 }
36
37 if (datePattern.equals(CoreConstants.ISO8601_STR)) {
38 datePattern = CoreConstants.ISO8601_PATTERN;
39 }
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41 List<String> optionList = getOptionList();
42 ZoneId zoneId = null;
43
44 if (optionList != null && optionList.size() > 1) {
45 String zoneIdString = (String) optionList.get(1);
46 zoneId = ZoneId.of(zoneIdString);
47 addInfo("Setting zoneId to \""+zoneId+"\"");
48 }
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50 Locale locale = null;
51 if (optionList != null && optionList.size() > 2) {
52 String localeIdStr = (String) optionList.get(2);
53 locale = Locale.forLanguageTag(localeIdStr);
54 addInfo("Setting locale to \""+locale+"\"");
55 }
56 try {
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58 cachingDateFormatter = new CachingDateFormatter(datePattern, zoneId, locale);
59 } catch (IllegalArgumentException e) {
60 addWarn("Could not instantiate SimpleDateFormat with pattern " + datePattern, e);
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62 cachingDateFormatter = new CachingDateFormatter(CoreConstants.ISO8601_PATTERN, zoneId);
63 }
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65 super.start();
66 }
67
68 public String convert(ILoggingEvent le) {
69 long timestamp = le.getTimeStamp();
70 return cachingDateFormatter.format(timestamp);
71 }
72 }