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[7.x] [Java.time] Calculate week of a year with ISO rules BACKPORT(#48209) (#48349) 

Reverting the change introducing IsoLocal.ROOT and introducing IsoCalendarDataProvider that defaults start of the week to Monday and requires minimum 4 days in first week of a year. This extension is using java SPI mechanism and defaults for Locale.ROOT only.
It require jvm property java.locale.providers to be set with SPI,COMPAT

closes #41670
backport #48209
This commit is contained in:
Przemyslaw Gomulka 2019-10-23 17:39:38 +02:00 committed by GitHub
parent 9c75f14a9f
commit aaa6209be6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
15 changed files with 155 additions and 75 deletions
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7
buildSrc/src/main/groovy/org/elasticsearch/gradle/BuildPlugin.groovy
View File

@ -842,6 +842,12 @@ class BuildPlugin implements Plugin<Project> {
if ((ext.get('runtimeJavaVersion') as JavaVersion) >= JavaVersion.VERSION_1_9) {
test.jvmArgs '--illegal-access=warn'
}
//TODO remove once jvm.options are added to test system properties
if ((ext.get('runtimeJavaVersion') as JavaVersion) == JavaVersion.VERSION_1_8) {
test.systemProperty ('java.locale.providers','SPI,JRE')
} else if ((ext.get('runtimeJavaVersion') as JavaVersion) >= JavaVersion.VERSION_1_9) {
test.systemProperty ('java.locale.providers','SPI,COMPAT')
}
}
test.jvmArgumentProviders.add(nonInputProperties)
@ -876,6 +882,7 @@ class BuildPlugin implements Plugin<Project> {
'tests.security.manager': 'true',
'jna.nosys': 'true'
// ignore changing test seed when build is passed -Dignore.tests.seed for cacheability experimentation
if (System.getProperty('ignore.tests.seed') != null) {
nonInputProperties.systemProperty('tests.seed', project.property('testSeed'))

63
server/src/main/java/org/elasticsearch/common/time/DateFormatters.java
View File

@ -37,7 +37,6 @@ import java.time.format.SignStyle;
import java.time.temporal.ChronoField;
import java.time.temporal.IsoFields;
import java.time.temporal.TemporalAccessor;
import java.time.temporal.TemporalAdjusters;
import java.time.temporal.TemporalQueries;
import java.time.temporal.TemporalQuery;
import java.time.temporal.WeekFields;
@ -53,6 +52,7 @@ import static java.time.temporal.ChronoField.NANO_OF_SECOND;
import static java.time.temporal.ChronoField.SECOND_OF_MINUTE;
public class DateFormatters {
public static final WeekFields WEEK_FIELDS = WeekFields.of(DayOfWeek.MONDAY,4);
private static final DateTimeFormatter TIME_ZONE_FORMATTER_NO_COLON = new DateTimeFormatterBuilder()
.appendOffset("+HHmm", "Z")
@ -946,14 +946,14 @@ public class DateFormatters {
* Returns a formatter for a four digit weekyear
*/
private static final DateFormatter STRICT_WEEKYEAR = new JavaDateFormatter("strict_weekyear", new DateTimeFormatterBuilder()
.appendValue(WeekFields.ISO.weekBasedYear(), 4, 10, SignStyle.EXCEEDS_PAD)
.appendValue(WEEK_FIELDS.weekBasedYear(), 4, 10, SignStyle.EXCEEDS_PAD)
.toFormatter(Locale.ROOT)
.withResolverStyle(ResolverStyle.STRICT));
private static final DateTimeFormatter STRICT_WEEKYEAR_WEEK_FORMATTER = new DateTimeFormatterBuilder()
.appendValue(WeekFields.ISO.weekBasedYear(), 4, 10, SignStyle.EXCEEDS_PAD)
.appendValue(WEEK_FIELDS.weekBasedYear(), 4, 10, SignStyle.EXCEEDS_PAD)
.appendLiteral("-W")
.appendValue(WeekFields.ISO.weekOfWeekBasedYear(), 2, 2, SignStyle.NOT_NEGATIVE)
.appendValue(WEEK_FIELDS.weekOfWeekBasedYear(), 2, 2, SignStyle.NOT_NEGATIVE)
.toFormatter(Locale.ROOT)
.withResolverStyle(ResolverStyle.STRICT);
@ -972,7 +972,7 @@ public class DateFormatters {
new DateTimeFormatterBuilder()
.append(STRICT_WEEKYEAR_WEEK_FORMATTER)
.appendLiteral("-")
.appendValue(WeekFields.ISO.dayOfWeek())
.appendValue(WEEK_FIELDS.dayOfWeek())
.toFormatter(Locale.ROOT)
.withResolverStyle(ResolverStyle.STRICT));
@ -1162,7 +1162,7 @@ public class DateFormatters {
* Returns a formatter for a four digit weekyear. (YYYY)
*/
private static final DateFormatter WEEK_YEAR = new JavaDateFormatter("week_year",
new DateTimeFormatterBuilder().appendValue(WeekFields.ISO.weekBasedYear()).toFormatter(Locale.ROOT)
new DateTimeFormatterBuilder().appendValue(WEEK_FIELDS.weekBasedYear()).toFormatter(Locale.ROOT)
.withResolverStyle(ResolverStyle.STRICT));
/*
@ -1591,9 +1591,9 @@ public class DateFormatters {
*/
private static final DateFormatter WEEKYEAR_WEEK = new JavaDateFormatter("weekyear_week", STRICT_WEEKYEAR_WEEK_FORMATTER,
new DateTimeFormatterBuilder()
.appendValue(WeekFields.ISO.weekBasedYear())
.appendValue(WEEK_FIELDS.weekBasedYear())
.appendLiteral("-W")
.appendValue(WeekFields.ISO.weekOfWeekBasedYear())
.appendValue(WEEK_FIELDS.weekOfWeekBasedYear())
.toFormatter(Locale.ROOT)
.withResolverStyle(ResolverStyle.STRICT)
);
@ -1606,15 +1606,15 @@ public class DateFormatters {
new DateTimeFormatterBuilder()
.append(STRICT_WEEKYEAR_WEEK_FORMATTER)
.appendLiteral("-")
.appendValue(WeekFields.ISO.dayOfWeek())
.appendValue(WEEK_FIELDS.dayOfWeek())
.toFormatter(Locale.ROOT)
.withResolverStyle(ResolverStyle.STRICT),
new DateTimeFormatterBuilder()
.appendValue(WeekFields.ISO.weekBasedYear())
.appendValue(WEEK_FIELDS.weekBasedYear())
.appendLiteral("-W")
.appendValue(WeekFields.ISO.weekOfWeekBasedYear())
.appendValue(WEEK_FIELDS.weekOfWeekBasedYear())
.appendLiteral("-")
.appendValue(WeekFields.ISO.dayOfWeek())
.appendValue(WEEK_FIELDS.dayOfWeek())
.toFormatter(Locale.ROOT)
.withResolverStyle(ResolverStyle.STRICT)
);
@ -1858,7 +1858,7 @@ public class DateFormatters {
} else if (isLocalDateSet) {
return localDate.atStartOfDay(zoneId);
} else if (isLocalTimeSet) {
return of(getLocaldate(accessor), localTime, zoneId);
return of(getLocalDate(accessor), localTime, zoneId);
} else if (accessor.isSupported(ChronoField.YEAR) || accessor.isSupported(ChronoField.YEAR_OF_ERA) ) {
if (accessor.isSupported(MONTH_OF_YEAR)) {
return getFirstOfMonth(accessor).atStartOfDay(zoneId);
@ -1868,19 +1868,9 @@ public class DateFormatters {
}
} else if (accessor.isSupported(MONTH_OF_YEAR)) {
// missing year, falling back to the epoch and then filling
return getLocaldate(accessor).atStartOfDay(zoneId);
} else if (accessor.isSupported(WeekFields.ISO.weekBasedYear())) {
if (accessor.isSupported(WeekFields.ISO.weekOfWeekBasedYear())) {
return Year.of(accessor.get(WeekFields.ISO.weekBasedYear()))
.atDay(1)
.with(WeekFields.ISO.weekOfWeekBasedYear(), accessor.getLong(WeekFields.ISO.weekOfWeekBasedYear()))
.atStartOfDay(zoneId);
} else {
return Year.of(accessor.get(WeekFields.ISO.weekBasedYear()))
.atDay(1)
.with(TemporalAdjusters.firstInMonth(DayOfWeek.MONDAY))
.atStartOfDay(zoneId);
}
return getLocalDate(accessor).atStartOfDay(zoneId);
} else if (accessor.isSupported(WEEK_FIELDS.weekBasedYear())) {
return localDateFromWeekBasedDate(accessor).atStartOfDay(zoneId);
}
// we should not reach this piece of code, everything being parsed we should be able to
@ -1888,6 +1878,19 @@ public class DateFormatters {
throw new IllegalArgumentException("temporal accessor [" + accessor + "] cannot be converted to zoned date time");
}
private static LocalDate localDateFromWeekBasedDate(TemporalAccessor accessor) {
if (accessor.isSupported(WEEK_FIELDS.weekOfWeekBasedYear())) {
return LocalDate.ofEpochDay(0)
.with(WEEK_FIELDS.weekBasedYear(), accessor.get(WEEK_FIELDS.weekBasedYear()))
.with(WEEK_FIELDS.weekOfWeekBasedYear(), accessor.get(WEEK_FIELDS.weekOfWeekBasedYear()))
.with(ChronoField.DAY_OF_WEEK, WEEK_FIELDS.getFirstDayOfWeek().getValue());
} else {
return LocalDate.ofEpochDay(0)
.with(WEEK_FIELDS.weekBasedYear(), accessor.get(WEEK_FIELDS.weekBasedYear()))
.with(ChronoField.DAY_OF_WEEK, WEEK_FIELDS.getFirstDayOfWeek().getValue());
}
}
/**
* extending the java.time.temporal.TemporalQueries.LOCAL_DATE implementation to also create local dates
* when YearOfEra was used instead of Year.
@ -1915,9 +1918,11 @@ public class DateFormatters {
}
};
private static LocalDate getLocaldate(TemporalAccessor accessor) {
int year = getYear(accessor);
if (accessor.isSupported(MONTH_OF_YEAR)) {
private static LocalDate getLocalDate(TemporalAccessor accessor) {
if (accessor.isSupported(WEEK_FIELDS.weekBasedYear())) {
return localDateFromWeekBasedDate(accessor);
} else if (accessor.isSupported(MONTH_OF_YEAR)) {
int year = getYear(accessor);
if (accessor.isSupported(DAY_OF_MONTH)) {
return LocalDate.of(year, accessor.get(MONTH_OF_YEAR), accessor.get(DAY_OF_MONTH));
} else {

41
server/src/main/java/org/elasticsearch/common/time/IsoCalendarDataProvider.java Normal file
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@ -0,0 +1,41 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.common.time;
import java.util.Calendar;
import java.util.Locale;
import java.util.spi.CalendarDataProvider;
public class IsoCalendarDataProvider extends CalendarDataProvider {
@Override
public int getFirstDayOfWeek(Locale locale) {
return Calendar.MONDAY;
}
@Override
public int getMinimalDaysInFirstWeek(Locale locale) {
return 4;
}
@Override
public Locale[] getAvailableLocales() {
return new Locale[]{Locale.ROOT};
}
}

10
server/src/main/java/org/elasticsearch/script/JodaCompatibleZonedDateTime.java
View File

@ -23,6 +23,7 @@ import org.apache.logging.log4j.LogManager;
import org.elasticsearch.common.SuppressForbidden;
import org.elasticsearch.common.logging.DeprecationLogger;
import org.elasticsearch.common.time.DateFormatter;
import org.elasticsearch.common.time.DateFormatters;
import org.elasticsearch.common.time.DateUtils;
import org.joda.time.DateTime;
@ -50,7 +51,6 @@ import java.time.temporal.TemporalField;
import java.time.temporal.TemporalQuery;
import java.time.temporal.TemporalUnit;
import java.time.temporal.ValueRange;
import java.time.temporal.WeekFields;
import java.util.Locale;
import java.util.Objects;
@ -474,14 +474,14 @@ public class JodaCompatibleZonedDateTime
@Deprecated
public int getWeekOfWeekyear() {
logDeprecatedMethod("getWeekOfWeekyear()", "get(WeekFields.ISO.weekOfWeekBasedYear())");
return dt.get(WeekFields.ISO.weekOfWeekBasedYear());
logDeprecatedMethod("getWeekOfWeekyear()", "get(DateFormatters.WEEK_FIELDS.weekOfWeekBasedYear())");
return dt.get(DateFormatters.WEEK_FIELDS.weekOfWeekBasedYear());
}
@Deprecated
public int getWeekyear() {
logDeprecatedMethod("getWeekyear()", "get(WeekFields.ISO.weekBasedYear())");
return dt.get(WeekFields.ISO.weekBasedYear());
logDeprecatedMethod("getWeekyear()", "get(DateFormatters.WEEK_FIELDS.weekBasedYear())");
return dt.get(DateFormatters.WEEK_FIELDS.weekBasedYear());
}
@Deprecated

1
server/src/main/resources/META-INF/services/java.util.spi.CalendarDataProvider Normal file
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@ -0,0 +1 @@
org.elasticsearch.common.time.IsoCalendarDataProvider

2
server/src/test/java/org/elasticsearch/common/joda/JavaJodaTimeDuellingTests.java
View File

@ -37,9 +37,9 @@ import java.time.format.DateTimeFormatter;
import java.time.temporal.TemporalAccessor;
import java.util.Locale;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.core.IsEqual.equalTo;
public class JavaJodaTimeDuellingTests extends ESTestCase {
@Override

30
server/src/test/java/org/elasticsearch/common/time/DateFormattersTests.java
View File

@ -19,6 +19,7 @@
package org.elasticsearch.common.time;
import org.elasticsearch.bootstrap.JavaVersion;
import org.elasticsearch.test.ESTestCase;
import java.time.Clock;
@ -40,6 +41,35 @@ import static org.hamcrest.Matchers.sameInstance;
public class DateFormattersTests extends ESTestCase {
public void testWeekBasedDates() {
assumeFalse("won't work in jdk8 " +
"because SPI mechanism is not looking at classpath - needs ISOCalendarDataProvider in jre's ext/libs",
JavaVersion.current().equals(JavaVersion.parse("8")));
// as per WeekFields.ISO first week starts on Monday and has minimum 4 days
DateFormatter dateFormatter = DateFormatters.forPattern("YYYY-ww");
// first week of 2016 starts on Monday 2016-01-04 as previous week in 2016 has only 3 days
assertThat(DateFormatters.from(dateFormatter.parse("2016-01")) ,
equalTo(ZonedDateTime.of(2016,01,04, 0,0,0,0,ZoneOffset.UTC)));
// first week of 2015 starts on Monday 2014-12-29 because 4days belong to 2019
assertThat(DateFormatters.from(dateFormatter.parse("2015-01")) ,
equalTo(ZonedDateTime.of(2014,12,29, 0,0,0,0,ZoneOffset.UTC)));
// as per WeekFields.ISO first week starts on Monday and has minimum 4 days
dateFormatter = DateFormatters.forPattern("YYYY");
// first week of 2016 starts on Monday 2016-01-04 as previous week in 2016 has only 3 days
assertThat(DateFormatters.from(dateFormatter.parse("2016")) ,
equalTo(ZonedDateTime.of(2016,01,04, 0,0,0,0,ZoneOffset.UTC)));
// first week of 2015 starts on Monday 2014-12-29 because 4days belong to 2019
assertThat(DateFormatters.from(dateFormatter.parse("2015")) ,
equalTo(ZonedDateTime.of(2014,12,29, 0,0,0,0,ZoneOffset.UTC)));
}
// this is not in the duelling tests, because the epoch millis parser in joda time drops the milliseconds after the comma
// but is able to parse the rest
// as this feature is supported it also makes sense to make it exact

19
server/src/test/java/org/elasticsearch/common/time/JavaDateMathParserTests.java
View File

@ -20,6 +20,7 @@
package org.elasticsearch.common.time;
import org.elasticsearch.ElasticsearchParseException;
import org.elasticsearch.bootstrap.JavaVersion;
import org.elasticsearch.test.ESTestCase;
import java.time.Instant;
@ -50,6 +51,24 @@ public class JavaDateMathParserTests extends ESTestCase {
assertDateEquals(gotMillis, "297276785531", "297276785531");
}
public void testWeekDates() {
assumeFalse("won't work in jdk8 " +
"because SPI mechanism is not looking at classpath - needs ISOCalendarDataProvider in jre's ext/libs",
JavaVersion.current().equals(JavaVersion.parse("8")));
DateFormatter formatter = DateFormatter.forPattern("YYYY-ww");
assertDateMathEquals(formatter.toDateMathParser(), "2016-01", "2016-01-04T23:59:59.999Z", 0, true, ZoneOffset.UTC);
formatter = DateFormatter.forPattern("YYYY");
assertDateMathEquals(formatter.toDateMathParser(), "2016", "2016-01-04T23:59:59.999Z", 0, true, ZoneOffset.UTC);
formatter = DateFormatter.forPattern("YYYY-ww");
assertDateMathEquals(formatter.toDateMathParser(), "2015-01", "2014-12-29T23:59:59.999Z", 0, true, ZoneOffset.UTC);
formatter = DateFormatter.forPattern("YYYY");
assertDateMathEquals(formatter.toDateMathParser(), "2015", "2014-12-29T23:59:59.999Z", 0, true, ZoneOffset.UTC);
}
public void testBasicDates() {
assertDateMathEquals("2014-05-30", "2014-05-30T00:00:00.000");
assertDateMathEquals("2014-05-30T20", "2014-05-30T20:00:00.000");

2
server/src/test/java/org/elasticsearch/index/mapper/DateFieldMapperTests.java
View File

@ -235,7 +235,7 @@ public class DateFieldMapperTests extends ESSingleNodeTestCase {
mapper.parse(new SourceToParse("test", "type", "1", BytesReference
.bytes(XContentFactory.jsonBuilder()
.startObject()
.field("field", "Mi., 06 Dez. 2000 02:55:00 -0800")
.field("field", "Mi, 06 Dez 2000 02:55:00 -0800")
.endObject()),
XContentType.JSON));
}

4
server/src/test/java/org/elasticsearch/script/JodaCompatibleZonedDateTimeTests.java
View File

@ -213,12 +213,12 @@ public class JodaCompatibleZonedDateTimeTests extends ESTestCase {
public void testWeekOfWeekyear() {
assertMethodDeprecation(() -> assertThat(javaTime.getWeekOfWeekyear(), equalTo(jodaTime.getWeekOfWeekyear())),
"getWeekOfWeekyear()", "get(WeekFields.ISO.weekOfWeekBasedYear())");
"getWeekOfWeekyear()", "get(DateFormatters.WEEK_FIELDS.weekOfWeekBasedYear())");
}
public void testWeekyear() {
assertMethodDeprecation(() -> assertThat(javaTime.getWeekyear(), equalTo(jodaTime.getWeekyear())),
"getWeekyear()", "get(WeekFields.ISO.weekBasedYear())");
"getWeekyear()", "get(DateFormatters.WEEK_FIELDS.weekBasedYear())");
}
public void testYearOfCentury() {

12
server/src/test/java/org/elasticsearch/search/query/SearchQueryIT.java
View File

@ -1678,21 +1678,21 @@ public class SearchQueryIT extends ESIntegTestCase {
.endObject().endObject().endObject()));
indexRandom(true,
client().prepareIndex("test", "type1", "1").setSource("date_field", "Mi., 06 Dez. 2000 02:55:00 -0800"),
client().prepareIndex("test", "type1", "2").setSource("date_field", "Do., 07 Dez. 2000 02:55:00 -0800")
client().prepareIndex("test", "type1", "1").setSource("date_field", "Mi, 06 Dez 2000 02:55:00 -0800"),
client().prepareIndex("test", "type1", "2").setSource("date_field", "Do, 07 Dez 2000 02:55:00 -0800")
);
SearchResponse searchResponse = client().prepareSearch("test")
.setQuery(QueryBuilders.rangeQuery("date_field")
.gte("Di., 05 Dez. 2000 02:55:00 -0800")
.lte("Do., 07 Dez. 2000 00:00:00 -0800"))
.gte("Di, 05 Dez 2000 02:55:00 -0800")
.lte("Do, 07 Dez 2000 00:00:00 -0800"))
.get();
assertHitCount(searchResponse, 1L);
searchResponse = client().prepareSearch("test")
.setQuery(QueryBuilders.rangeQuery("date_field")
.gte("Di., 05 Dez. 2000 02:55:00 -0800")
.lte("Fr., 08 Dez. 2000 00:00:00 -0800"))
.gte("Di, 05 Dez 2000 02:55:00 -0800")
.lte("Fr, 08 Dez 2000 00:00:00 -0800"))
.get();
assertHitCount(searchResponse, 2L);
}

17
x-pack/plugin/core/src/test/java/org/elasticsearch/license/LicenseServiceTests.java
View File

@ -17,23 +17,11 @@ import static org.hamcrest.Matchers.startsWith;
/**
* Due to changes in JDK9 where locale data is used from CLDR, the licence message will differ in jdk 8 and jdk9+
* https://openjdk.java.net/jeps/252
* We run ES with -Djava.locale.providers=SPI,COMPAT and same option has to be applied when running this test from IDE
*/
public class LicenseServiceTests extends ESTestCase {
public void testLogExpirationWarningOnJdk9AndNewer() {
assumeTrue("this is for JDK9+", JavaVersion.current().compareTo(JavaVersion.parse("9")) >= 0);
long time = LocalDate.of(2018, 11, 15).atStartOfDay(ZoneOffset.UTC).toInstant().toEpochMilli();
final boolean expired = randomBoolean();
final String message = LicenseService.buildExpirationMessage(time, expired).toString();
if (expired) {
assertThat(message, startsWith("LICENSE [EXPIRED] ON [THU, NOV 15, 2018].\n"));
} else {
assertThat(message, startsWith("License [will expire] on [Thu, Nov 15, 2018].\n"));
}
}
public void testLogExpirationWarningOnJdk8() {
public void testLogExpirationWarning() {
assumeTrue("this is for JDK8 only", JavaVersion.current().equals(JavaVersion.parse("8")));
long time = LocalDate.of(2018, 11, 15).atStartOfDay(ZoneOffset.UTC).toInstant().toEpochMilli();
@ -45,5 +33,4 @@ public class LicenseServiceTests extends ESTestCase {
assertThat(message, startsWith("License [will expire] on [Thursday, November 15, 2018].\n"));
}
}
}

1
x-pack/plugin/ml/src/test/java/org/elasticsearch/xpack/ml/filestructurefinder/TimestampFormatFinderTests.java
View File

@ -430,7 +430,6 @@ public class TimestampFormatFinderTests extends FileStructureTestCase {
}
public void testGuessIsDayFirstFromLocale() {
TimestampFormatFinder timestampFormatFinder = new TimestampFormatFinder(explanation, true, true, true, NOOP_TIMEOUT_CHECKER);
// Locale fallback is the only way to decide

16
x-pack/plugin/sql/src/main/java/org/elasticsearch/xpack/sql/expression/function/scalar/datetime/NonIsoDateTimeProcessor.java
View File

@ -10,14 +10,12 @@ import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import java.io.IOException;
import java.time.LocalDateTime;
import java.time.DayOfWeek;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.temporal.ChronoField;
import java.util.Calendar;
import java.util.Locale;
import java.time.temporal.WeekFields;
import java.util.Objects;
import java.util.TimeZone;
import java.util.function.Function;
public class NonIsoDateTimeProcessor extends BaseDateTimeProcessor {
@ -30,15 +28,7 @@ public class NonIsoDateTimeProcessor extends BaseDateTimeProcessor {
return dayOfWeek == 8 ? 1 : dayOfWeek;
}),
WEEK_OF_YEAR(zdt -> {
// by ISO 8601 standard, the first week of a year is the first week with a majority (4 or more) of its days in January.
// Other Locales may have their own standards (see Arabic or Japanese calendars).
LocalDateTime ld = zdt.toLocalDateTime();
Calendar cal = Calendar.getInstance(TimeZone.getTimeZone(zdt.getZone()), Locale.ROOT);
cal.clear();
cal.set(ld.get(ChronoField.YEAR), ld.get(ChronoField.MONTH_OF_YEAR) - 1, ld.get(ChronoField.DAY_OF_MONTH),
ld.get(ChronoField.HOUR_OF_DAY), ld.get(ChronoField.MINUTE_OF_HOUR), ld.get(ChronoField.SECOND_OF_MINUTE));
return cal.get(Calendar.WEEK_OF_YEAR);
return zdt.get(WeekFields.of(DayOfWeek.SUNDAY, 1).weekOfWeekBasedYear());
});
private final Function<ZonedDateTime, Integer> apply;

3
x-pack/plugin/sql/src/test/java/org/elasticsearch/xpack/sql/expression/function/scalar/datetime/NonIsoDateTimeProcessorTests.java
View File

@ -17,7 +17,6 @@ import static org.elasticsearch.xpack.sql.util.DateUtils.UTC;
public class NonIsoDateTimeProcessorTests extends AbstractSqlWireSerializingTestCase<NonIsoDateTimeProcessor> {
public static NonIsoDateTimeProcessor randomNonISODateTimeProcessor() {
return new NonIsoDateTimeProcessor(randomFrom(NonIsoDateTimeExtractor.values()), UTC);
}
@ -45,6 +44,8 @@ public class NonIsoDateTimeProcessorTests extends AbstractSqlWireSerializingTest
public void testNonISOWeekOfYearInUTC() {
NonIsoDateTimeProcessor proc = new NonIsoDateTimeProcessor(NonIsoDateTimeExtractor.WEEK_OF_YEAR, UTC);
// 1 Jan 1988 is Friday - under Sunday,1 rule it is the first week of the year (under ISO rule it would be 53 of the previous year
// hence the 5th Jan 1988 Tuesday is the second week of a year
assertEquals(2, proc.process(dateTime(568372930000L))); //1988-01-05T09:22:10Z[UTC]
assertEquals(6, proc.process(dateTime(981278530000L))); //2001-02-04T09:22:10Z[UTC]
assertEquals(7, proc.process(dateTime(224241730000L))); //1977-02-08T09:22:10Z[UTC]