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Fix ingest timezone parsing #63876

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Merged
merged 10 commits into from
Oct 26, 2021
Merged

Fix ingest timezone parsing #63876

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97b7f1f
Fix ingest timezone parsing
pgomulka Oct 19, 2020
c523771
Merge branch 'master' into time/fix_ingest_timezone
elasticmachine Nov 24, 2020
83024f0
implement defaulting and overriding
pgomulka Nov 24, 2020
a433a59
Merge branch 'time/fix_ingest_timezone' of github.com:pgomulka/elasti…
pgomulka Nov 24, 2020
df69b56
clean up tests
pgomulka Nov 24, 2020
f05dc53
testcase for defaulting weekbased year and fix comments
pgomulka Dec 1, 2020
03fd43d
Merge branch 'master' into time/fix_ingest_timezone
elasticmachine Dec 1, 2020
6551ad6
remove week of weekbased year change
pgomulka Dec 2, 2020
baae3ef
Merge remote-tracking branch 'upstream/master' into time/fix_ingest_t…
pgomulka Dec 28, 2020
d80709d
Merge branch 'master' into time/fix_ingest_timezone
elasticmachine Oct 26, 2021
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15 changes: 4 additions & 11 deletions modules/ingest-common/src/main/java/org/elasticsearch/ingest/common/DateFormat.java
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Original file line number Diff line number Diff line change
Expand Up @@ -83,14 +83,9 @@ Function<String, ZonedDateTime> getFunction(String format, ZoneId zoneId, Locale
format = format.substring(1);
}

boolean isUtc = ZoneOffset.UTC.equals(zoneId);

DateFormatter dateFormatter = DateFormatter.forPattern(format)
.withLocale(locale);
// if UTC zone is set here, the time zone specified in the format will be ignored, leading to wrong dates
if (isUtc == false) {
dateFormatter = dateFormatter.withZone(zoneId);
}

final DateFormatter formatter = dateFormatter;
return text -> {
TemporalAccessor accessor = formatter.parse(text);
Expand All @@ -110,11 +105,9 @@ Function<String, ZonedDateTime> getFunction(String format, ZoneId zoneId, Locale
accessor = newTime.withZoneSameLocal(zoneId);
}

if (isUtc) {
return DateFormatters.from(accessor, locale).withZoneSameInstant(ZoneOffset.UTC);
} else {
return DateFormatters.from(accessor, locale);
}
return DateFormatters.from(accessor, locale, zoneId)
.withZoneSameInstant(zoneId);

};
}
};
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40 changes: 39 additions & 1 deletion modules/ingest-common/src/test/java/org/elasticsearch/ingest/common/DateFormatTests.java
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Expand Up @@ -75,14 +75,52 @@ public void testParseWeekBasedYear() {
}

public void testParseWeekBasedWithLocale() {
String format = randomFrom("YYYY-ww");
String format = "YYYY-ww";
ZoneId timezone = DateUtils.of("Europe/Amsterdam");
Function<String, ZonedDateTime> javaFunction = DateFormat.Java.getFunction(format, timezone, Locale.US);
ZonedDateTime dateTime = javaFunction.apply("2020-33");
//33rd week of 2020 starts on 9th August 2020 as per US locale
assertThat(dateTime, equalTo(ZonedDateTime.of(2020,8,9,0,0,0,0,timezone)));
}

public void testNoTimezoneOnPatternAndOverride() {
{
String format = "yyyy-MM-dd'T'HH:mm";
ZoneId timezone = ZoneId.of("UTC");
Function<String, ZonedDateTime> javaFunction = DateFormat.Java.getFunction(format, timezone, Locale.ROOT);
// this means that hour will be 01:00 at UTC as timezone was not on a pattern, but provided as an ingest param
ZonedDateTime dateTime = javaFunction.apply("2020-01-01T01:00");
assertThat(dateTime, equalTo(ZonedDateTime.of(2020, 01, 01, 01, 0, 0, 0, timezone)));
}
{
String format = "yyyy-MM-dd'T'HH:mm";
ZoneId timezone = ZoneId.of("-01:00");
Function<String, ZonedDateTime> javaFunction = DateFormat.Java.getFunction(format, timezone, Locale.ROOT);
// this means that hour will be 01:00 at -01:00 as timezone was not on a pattern, but provided as an ingest param
ZonedDateTime dateTime = javaFunction.apply("2020-01-01T01:00");
assertThat(dateTime, equalTo(ZonedDateTime.of(2020, 01, 01, 01, 0, 0, 0, timezone)));
}
}

public void testTimezoneOnAPatternAndNonUTCOverride() {
String format = "yyyy-MM-dd'T'HH:mm XXX";
ZoneId timezone = ZoneId.of("-01:00");
Function<String, ZonedDateTime> javaFunction = DateFormat.Java.getFunction(format, timezone, Locale.ROOT);
// this means that hour will be 01:00 at -02:00 as timezone on a pattern. Converted to -01:00 as requested on ingest param

ZonedDateTime dateTime = javaFunction.apply("2020-01-01T01:00 -02:00");
assertThat(dateTime, equalTo(ZonedDateTime.of(2020, 01, 01, 02, 0, 0, 0, timezone)));
}

public void testDefaultHourDefaultedToTimezoneOverride() {
String format = "yyyy-MM-dd";
ZoneId timezone = ZoneId.of("-01:00");
Function<String, ZonedDateTime> javaFunction = DateFormat.Java.getFunction(format, timezone, Locale.ROOT);
// this means that hour will be 00:00 (default) at -01:00 as timezone was not on a pattern, but -01:00 was an ingest param
ZonedDateTime dateTime = javaFunction.apply("2020-01-01");
assertThat(dateTime, equalTo(ZonedDateTime.of(2020, 01, 01, 0, 0, 0, 0, timezone)));
}

public void testParseUnixMs() {
assertThat(DateFormat.UnixMs.getFunction(null, ZoneOffset.UTC, null).apply("1000500").toInstant().toEpochMilli(),
equalTo(1000500L));
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