From c325fb20f1169cd31ab9b4c8ca561b10c9168efa Mon Sep 17 00:00:00 2001 From: Prabhat Sharma Date: Wed, 22 Nov 2023 15:04:10 +0530 Subject: [PATCH] Added New DateTime parser implementation Signed-off-by: Prabhat Sharma --- CHANGELOG.md | 1 + NOTICE.txt | 3 + .../common/time/DateFormatters.java | 37 ++ .../opensearch/common/time/FormatNames.java | 1 + .../common/time/JavaDateFormatter.java | 90 ++-- .../time/OpenSearchDateTimeFormatter.java | 85 ++++ .../time/OpenSearchDateTimePrinter.java | 30 ++ .../RFC3339CompatibleDateTimeFormatter.java | 428 ++++++++++++++++++ .../joda/JavaJodaTimeDuellingTests.java | 4 +- .../common/time/DateFormattersTests.java | 154 ++++++- 10 files changed, 796 insertions(+), 37 deletions(-) create mode 100644 server/src/main/java/org/opensearch/common/time/OpenSearchDateTimeFormatter.java create mode 100644 server/src/main/java/org/opensearch/common/time/OpenSearchDateTimePrinter.java create mode 100644 server/src/main/java/org/opensearch/common/time/RFC3339CompatibleDateTimeFormatter.java diff --git a/CHANGELOG.md b/CHANGELOG.md index b8dce60ab5ce4..b9c96695c7b87 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -133,6 +133,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), - Bump OpenTelemetry from 1.32.0 to 1.34.1 ([#11891](https://github.com/opensearch-project/OpenSearch/pull/11891)) - Support index level allocation filtering for searchable snapshot index ([#11563](https://github.com/opensearch-project/OpenSearch/pull/11563)) - Add `org.opensearch.rest.MethodHandlers` and `RestController#getAllHandlers` ([11876](https://github.com/opensearch-project/OpenSearch/pull/11876)) +- New DateTime format for RFC3339 compatible date fields ([#11465](https://github.com/opensearch-project/OpenSearch/pull/11465)) ### Dependencies - Bumps jetty version to 9.4.52.v20230823 to fix GMS-2023-1857 ([#9822](https://github.com/opensearch-project/OpenSearch/pull/9822)) diff --git a/NOTICE.txt b/NOTICE.txt index 6c7dc983f8c7a..d463b8f28561f 100644 --- a/NOTICE.txt +++ b/NOTICE.txt @@ -10,3 +10,6 @@ Foundation (http://www.apache.org/). This product includes software developed by Joda.org (http://www.joda.org/). + +This product includes software developed by +Morten Haraldsen (ethlo) (https://github.com/ethlo) under the Apache License, version 2.0. diff --git a/server/src/main/java/org/opensearch/common/time/DateFormatters.java b/server/src/main/java/org/opensearch/common/time/DateFormatters.java index e74ab687b903b..527dce7677dd8 100644 --- a/server/src/main/java/org/opensearch/common/time/DateFormatters.java +++ b/server/src/main/java/org/opensearch/common/time/DateFormatters.java @@ -1299,6 +1299,41 @@ public class DateFormatters { .withResolverStyle(ResolverStyle.STRICT) ); + /** + * Returns RFC 3339 a popular ISO 8601 profile compatible date time formatter and parser. + * This is not fully compatible to the existing spec, its more linient and closely follows w3c note on datetime + */ + + public static final DateFormatter RFC3339_LENIENT_DATE_FORMATTER = new JavaDateFormatter( + "rfc3339_lenient", + new OpenSearchDateTimeFormatter(STRICT_DATE_OPTIONAL_TIME_PRINTER), + new RFC3339CompatibleDateTimeFormatter( + new DateTimeFormatterBuilder().append(DATE_FORMATTER) + .optionalStart() + .appendLiteral('T') + .appendValue(HOUR_OF_DAY, 1, 2, SignStyle.NOT_NEGATIVE) + .appendLiteral(':') + .appendValue(MINUTE_OF_HOUR, 1, 2, SignStyle.NOT_NEGATIVE) + .optionalStart() + .appendLiteral(':') + .appendValue(SECOND_OF_MINUTE, 1, 2, SignStyle.NOT_NEGATIVE) + .optionalStart() + .appendFraction(NANO_OF_SECOND, 1, 9, true) + .optionalEnd() + .optionalStart() + .appendLiteral(',') + .appendFraction(NANO_OF_SECOND, 1, 9, false) + .optionalEnd() + .optionalStart() + .appendOffsetId() + .optionalEnd() + .optionalEnd() + .optionalEnd() + .toFormatter(Locale.ROOT) + .withResolverStyle(ResolverStyle.STRICT) + ) + ); + private static final DateTimeFormatter HOUR_MINUTE_SECOND_FORMATTER = new DateTimeFormatterBuilder().append(HOUR_MINUTE_FORMATTER) .appendLiteral(":") .appendValue(SECOND_OF_MINUTE, 1, 2, SignStyle.NOT_NEGATIVE) @@ -2152,6 +2187,8 @@ static DateFormatter forPattern(String input) { return STRICT_YEAR_MONTH; } else if (FormatNames.STRICT_YEAR_MONTH_DAY.matches(input)) { return STRICT_YEAR_MONTH_DAY; + } else if (FormatNames.RFC3339_LENIENT.matches(input)) { + return RFC3339_LENIENT_DATE_FORMATTER; } else { try { return new JavaDateFormatter( diff --git a/server/src/main/java/org/opensearch/common/time/FormatNames.java b/server/src/main/java/org/opensearch/common/time/FormatNames.java index ba0a8fcf4a17a..ec5e825fc933e 100644 --- a/server/src/main/java/org/opensearch/common/time/FormatNames.java +++ b/server/src/main/java/org/opensearch/common/time/FormatNames.java @@ -44,6 +44,7 @@ */ public enum FormatNames { ISO8601(null, "iso8601"), + RFC3339_LENIENT(null, "rfc3339_lenient"), BASIC_DATE("basicDate", "basic_date"), BASIC_DATE_TIME("basicDateTime", "basic_date_time"), BASIC_DATE_TIME_NO_MILLIS("basicDateTimeNoMillis", "basic_date_time_no_millis"), diff --git a/server/src/main/java/org/opensearch/common/time/JavaDateFormatter.java b/server/src/main/java/org/opensearch/common/time/JavaDateFormatter.java index f711b14aeb928..033ea280e6172 100644 --- a/server/src/main/java/org/opensearch/common/time/JavaDateFormatter.java +++ b/server/src/main/java/org/opensearch/common/time/JavaDateFormatter.java @@ -36,6 +36,7 @@ import org.opensearch.core.common.Strings; import java.text.ParsePosition; +import java.time.DateTimeException; import java.time.ZoneId; import java.time.format.DateTimeFormatter; import java.time.format.DateTimeFormatterBuilder; @@ -52,7 +53,6 @@ import java.util.Locale; import java.util.Map; import java.util.Objects; -import java.util.concurrent.CopyOnWriteArrayList; import java.util.function.BiConsumer; import java.util.stream.Collectors; @@ -70,11 +70,11 @@ class JavaDateFormatter implements DateFormatter { private final String format; private final String printFormat; - private final DateTimeFormatter printer; - private final List parsers; + private final OpenSearchDateTimePrinter printer; + private final List parsers; private final JavaDateFormatter roundupParser; private final Boolean canCacheLastParsedFormatter; - private volatile DateTimeFormatter lastParsedformatter = null; + private volatile OpenSearchDateTimeFormatter lastParsedformatter = null; /** * A round up formatter @@ -83,11 +83,11 @@ class JavaDateFormatter implements DateFormatter { */ static class RoundUpFormatter extends JavaDateFormatter { - RoundUpFormatter(String format, List roundUpParsers) { + RoundUpFormatter(String format, List roundUpParsers) { super(format, firstFrom(roundUpParsers), null, roundUpParsers); } - private static DateTimeFormatter firstFrom(List roundUpParsers) { + private static OpenSearchDateTimeFormatter firstFrom(List roundUpParsers) { return roundUpParsers.get(0); } @@ -101,14 +101,18 @@ JavaDateFormatter getRoundupParser() { JavaDateFormatter( String format, String printFormat, - DateTimeFormatter printer, + OpenSearchDateTimePrinter printer, Boolean canCacheLastParsedFormatter, - DateTimeFormatter... parsers + OpenSearchDateTimeFormatter... parsers ) { this(format, printFormat, printer, ROUND_UP_BASE_FIELDS, canCacheLastParsedFormatter, parsers); } JavaDateFormatter(String format, DateTimeFormatter printer, DateTimeFormatter... parsers) { + this(format, format, wrapFormatter(printer), false, wrapAllFormatters(parsers)); + } + + JavaDateFormatter(String format, OpenSearchDateTimePrinter printer, OpenSearchDateTimeFormatter... parsers) { this(format, format, printer, false, parsers); } @@ -127,19 +131,19 @@ JavaDateFormatter getRoundupParser() { JavaDateFormatter( String format, String printFormat, - DateTimeFormatter printer, + OpenSearchDateTimePrinter printer, BiConsumer roundupParserConsumer, Boolean canCacheLastParsedFormatter, - DateTimeFormatter... parsers + OpenSearchDateTimeFormatter... parsers ) { if (printer == null) { throw new IllegalArgumentException("printer may not be null"); } - long distinctZones = Arrays.stream(parsers).map(DateTimeFormatter::getZone).distinct().count(); + long distinctZones = Arrays.stream(parsers).map(OpenSearchDateTimeFormatter::getZone).distinct().count(); if (distinctZones > 1) { throw new IllegalArgumentException("formatters must have the same time zone"); } - long distinctLocales = Arrays.stream(parsers).map(DateTimeFormatter::getLocale).distinct().count(); + long distinctLocales = Arrays.stream(parsers).map(OpenSearchDateTimeFormatter::getLocale).distinct().count(); if (distinctLocales > 1) { throw new IllegalArgumentException("formatters must have the same locale"); } @@ -149,12 +153,12 @@ JavaDateFormatter getRoundupParser() { this.canCacheLastParsedFormatter = canCacheLastParsedFormatter; if (parsers.length == 0) { - this.parsers = Collections.singletonList(printer); + this.parsers = Collections.singletonList((OpenSearchDateTimeFormatter) printer); } else { this.parsers = Arrays.asList(parsers); } List roundUp = createRoundUpParser(format, roundupParserConsumer); - this.roundupParser = new RoundUpFormatter(format, roundUp); + this.roundupParser = new RoundUpFormatter(format, wrapAllFormatters(roundUp)); } JavaDateFormatter( @@ -163,7 +167,7 @@ JavaDateFormatter getRoundupParser() { BiConsumer roundupParserConsumer, DateTimeFormatter... parsers ) { - this(format, format, printer, roundupParserConsumer, false, parsers); + this(format, format, wrapFormatter(printer), roundupParserConsumer, false, wrapAllFormatters(parsers)); } /** @@ -181,7 +185,8 @@ private List createRoundUpParser( ) { if (format.contains("||") == false) { List roundUpParsers = new ArrayList<>(); - for (DateTimeFormatter parser : this.parsers) { + for (OpenSearchDateTimeFormatter customparser : this.parsers) { + DateTimeFormatter parser = customparser.getFormatter(); DateTimeFormatterBuilder builder = new DateTimeFormatterBuilder(); builder.append(parser); roundupParserConsumer.accept(builder, parser); @@ -201,12 +206,12 @@ public static DateFormatter combined( assert formatters.size() > 0; assert printFormatter != null; - List parsers = new ArrayList<>(formatters.size()); - List roundUpParsers = new ArrayList<>(formatters.size()); + List parsers = new ArrayList<>(formatters.size()); + List roundUpParsers = new ArrayList<>(formatters.size()); assert printFormatter instanceof JavaDateFormatter; JavaDateFormatter javaPrintFormatter = (JavaDateFormatter) printFormatter; - DateTimeFormatter printer = javaPrintFormatter.getPrinter(); + OpenSearchDateTimePrinter printer = javaPrintFormatter.getPrinter(); for (DateFormatter formatter : formatters) { assert formatter instanceof JavaDateFormatter; JavaDateFormatter javaDateFormatter = (JavaDateFormatter) formatter; @@ -227,9 +232,9 @@ public static DateFormatter combined( private JavaDateFormatter( String format, String printFormat, - DateTimeFormatter printer, - List roundUpParsers, - List parsers, + OpenSearchDateTimePrinter printer, + List roundUpParsers, + List parsers, Boolean canCacheLastParsedFormatter ) { this.format = format; @@ -245,6 +250,15 @@ private JavaDateFormatter( DateTimeFormatter printer, List roundUpParsers, List parsers + ) { + this(format, format, wrapFormatter(printer), wrapAllFormatters(roundUpParsers), wrapAllFormatters(parsers), false); + } + + private JavaDateFormatter( + String format, + OpenSearchDateTimePrinter printer, + List roundUpParsers, + List parsers ) { this(format, format, printer, roundUpParsers, parsers, false); } @@ -253,7 +267,7 @@ JavaDateFormatter getRoundupParser() { return roundupParser; } - DateTimeFormatter getPrinter() { + OpenSearchDateTimePrinter getPrinter() { return printer; } @@ -265,7 +279,7 @@ public TemporalAccessor parse(String input) { try { return doParse(input); - } catch (DateTimeParseException e) { + } catch (DateTimeException e) { throw new IllegalArgumentException("failed to parse date field [" + input + "] with format [" + format + "]", e); } } @@ -289,14 +303,14 @@ private TemporalAccessor doParse(String input) { Object object = null; if (canCacheLastParsedFormatter && lastParsedformatter != null) { ParsePosition pos = new ParsePosition(0); - object = lastParsedformatter.toFormat().parseObject(input, pos); + object = lastParsedformatter.parseObject(input, pos); if (parsingSucceeded(object, input, pos)) { return (TemporalAccessor) object; } } - for (DateTimeFormatter formatter : parsers) { + for (OpenSearchDateTimeFormatter formatter : parsers) { ParsePosition pos = new ParsePosition(0); - object = formatter.toFormat().parseObject(input, pos); + object = formatter.parseObject(input, pos); if (parsingSucceeded(object, input, pos)) { lastParsedformatter = formatter; return (TemporalAccessor) object; @@ -312,16 +326,28 @@ private boolean parsingSucceeded(Object object, String input, ParsePosition pos) return object != null && pos.getIndex() == input.length(); } + private static OpenSearchDateTimeFormatter wrapFormatter(DateTimeFormatter formatter) { + return new OpenSearchDateTimeFormatter(formatter); + } + + private static OpenSearchDateTimeFormatter[] wrapAllFormatters(DateTimeFormatter... formatters) { + return Arrays.stream(formatters).map(JavaDateFormatter::wrapFormatter).toArray(OpenSearchDateTimeFormatter[]::new); + } + + private static List wrapAllFormatters(List formatters) { + return formatters.stream().map(JavaDateFormatter::wrapFormatter).collect(Collectors.toList()); + } + @Override public DateFormatter withZone(ZoneId zoneId) { // shortcurt to not create new objects unnecessarily if (zoneId.equals(zone())) { return this; } - List parsers = new CopyOnWriteArrayList<>( + List parsers = new ArrayList<>( this.parsers.stream().map(p -> p.withZone(zoneId)).collect(Collectors.toList()) ); - List roundUpParsers = this.roundupParser.getParsers() + List roundUpParsers = this.roundupParser.getParsers() .stream() .map(p -> p.withZone(zoneId)) .collect(Collectors.toList()); @@ -334,10 +360,10 @@ public DateFormatter withLocale(Locale locale) { if (locale.equals(locale())) { return this; } - List parsers = new CopyOnWriteArrayList<>( + List parsers = new ArrayList<>( this.parsers.stream().map(p -> p.withLocale(locale)).collect(Collectors.toList()) ); - List roundUpParsers = this.roundupParser.getParsers() + List roundUpParsers = this.roundupParser.getParsers() .stream() .map(p -> p.withLocale(locale)) .collect(Collectors.toList()); @@ -396,7 +422,7 @@ public String toString() { return String.format(Locale.ROOT, "format[%s] locale[%s]", format, locale()); } - Collection getParsers() { + Collection getParsers() { return parsers; } } diff --git a/server/src/main/java/org/opensearch/common/time/OpenSearchDateTimeFormatter.java b/server/src/main/java/org/opensearch/common/time/OpenSearchDateTimeFormatter.java new file mode 100644 index 0000000000000..3a629d8843949 --- /dev/null +++ b/server/src/main/java/org/opensearch/common/time/OpenSearchDateTimeFormatter.java @@ -0,0 +1,85 @@ +/* + * SPDX-License-Identifier: Apache-2.0 + * + * The OpenSearch Contributors require contributions made to + * this file be licensed under the Apache-2.0 license or a + * compatible open source license. + */ + +package org.opensearch.common.time; + +import java.text.Format; +import java.text.ParsePosition; +import java.time.ZoneId; +import java.time.format.DateTimeFormatter; +import java.time.temporal.TemporalAccessor; +import java.time.temporal.TemporalQuery; +import java.util.Locale; + +/** +* Wrapper class for DateTimeFormatter{@link java.time.format.DateTimeFormatter} +* to allow for custom implementations for datetime parsing/formatting + */ +class OpenSearchDateTimeFormatter implements OpenSearchDateTimePrinter { + private final DateTimeFormatter formatter; + + public OpenSearchDateTimeFormatter(String pattern) { + this.formatter = DateTimeFormatter.ofPattern(pattern, Locale.ROOT); + } + + public OpenSearchDateTimeFormatter(String pattern, Locale locale) { + this.formatter = DateTimeFormatter.ofPattern(pattern, locale); + } + + public OpenSearchDateTimeFormatter(DateTimeFormatter formatter) { + this.formatter = formatter; + } + + public OpenSearchDateTimeFormatter withLocale(Locale locale) { + return new OpenSearchDateTimeFormatter(getFormatter().withLocale(locale)); + } + + public OpenSearchDateTimeFormatter withZone(ZoneId zoneId) { + return new OpenSearchDateTimeFormatter(getFormatter().withZone(zoneId)); + } + + public String format(TemporalAccessor temporal) { + return this.getFormatter().format(temporal); + } + + public TemporalAccessor parse(CharSequence text, ParsePosition position) { + return this.getFormatter().parse(text, position); + } + + public TemporalAccessor parse(CharSequence text) { + return this.getFormatter().parse(text); + } + + public T parse(CharSequence text, TemporalQuery query) { + return this.getFormatter().parse(text, query); + } + + public ZoneId getZone() { + return this.getFormatter().getZone(); + } + + public Locale getLocale() { + return this.getFormatter().getLocale(); + } + + public TemporalAccessor parse(String input) { + return formatter.parse(input); + } + + public DateTimeFormatter getFormatter() { + return formatter; + } + + public Format toFormat() { + return getFormatter().toFormat(); + } + + public Object parseObject(String text, ParsePosition pos) { + return getFormatter().toFormat().parseObject(text, pos); + } +} diff --git a/server/src/main/java/org/opensearch/common/time/OpenSearchDateTimePrinter.java b/server/src/main/java/org/opensearch/common/time/OpenSearchDateTimePrinter.java new file mode 100644 index 0000000000000..350bae21b22b1 --- /dev/null +++ b/server/src/main/java/org/opensearch/common/time/OpenSearchDateTimePrinter.java @@ -0,0 +1,30 @@ +/* + * SPDX-License-Identifier: Apache-2.0 + * + * The OpenSearch Contributors require contributions made to + * this file be licensed under the Apache-2.0 license or a + * compatible open source license. + */ + +package org.opensearch.common.time; + +import java.time.ZoneId; +import java.time.temporal.TemporalAccessor; +import java.util.Locale; + +/** + * Interface for DateTimeFormatter{@link java.time.format.DateTimeFormatter} + * to allow for custom implementations for datetime formatting + */ +interface OpenSearchDateTimePrinter { + + public OpenSearchDateTimePrinter withLocale(Locale locale); + + public OpenSearchDateTimePrinter withZone(ZoneId zoneId); + + public String format(TemporalAccessor temporal); + + public Locale getLocale(); + + public ZoneId getZone(); +} diff --git a/server/src/main/java/org/opensearch/common/time/RFC3339CompatibleDateTimeFormatter.java b/server/src/main/java/org/opensearch/common/time/RFC3339CompatibleDateTimeFormatter.java new file mode 100644 index 0000000000000..98b87efd2380b --- /dev/null +++ b/server/src/main/java/org/opensearch/common/time/RFC3339CompatibleDateTimeFormatter.java @@ -0,0 +1,428 @@ +/* + * SPDX-License-Identifier: Apache-2.0 + * + * The OpenSearch Contributors require contributions made to + * this file be licensed under the Apache-2.0 license or a + * compatible open source license. + */ + +/* + * Based on code from the Internet Time Utility project (https://github.com/ethlo/itu) under the Apache License, version 2.0. + * Copyright (C) 2017 Morten Haraldsen (ethlo) + * Modifications (C) OpenSearch Contributors. All Rights Reserved. + */ + +package org.opensearch.common.time; + +import java.text.ParsePosition; +import java.time.DateTimeException; +import java.time.OffsetDateTime; +import java.time.ZoneId; +import java.time.ZoneOffset; +import java.time.format.DateTimeParseException; +import java.time.temporal.TemporalAccessor; +import java.util.Arrays; +import java.util.Locale; + +/** + * Defines a close profile of RFC3339 datetime format where the date is mandatory and the time is optional. + *

+ * The returned formatter can only be used for parsing, printing is unsupported. + *

+ * This parser can parse zoned datetimes. + * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. + *

+ * It accepts formats described by the following syntax: + * 

+ * Year:
+ *       YYYY (eg 1997)
+ *    Year and month:
+ *       YYYY-MM (eg 1997-07)
+ *    Complete date:
+ *       YYYY-MM-DD (eg 1997-07-16)
+ *    Complete date plus hours and minutes:
+ *       YYYY-MM-DDThh:mmTZD (eg 1997-07-16T19:20+01:00)
+ *    Complete date plus hours, minutes and seconds:
+ *       YYYY-MM-DDThh:mm:ssTZD (eg 1997-07-16T19:20:30+01:00)
+ *    Complete date plus hours, minutes, seconds and a decimal fraction of a second
+ *       YYYY-MM-DDThh:mm:ss.sTZD (eg 1997-07-16T19:20:30.45+01:00)
+ *       YYYY-MM-DDThh:mm:ss,sTZD (eg 1997-07-16T19:20:30,45+01:00)
+ * where:
+ *
+ *      YYYY = four-digit year
+ *      MM   = two-digit month (01=January, etc.)
+ *      DD   = two-digit day of month (01 through 31)
+ *      hh   = two digits of hour (00 through 23) (am/pm NOT allowed)
+ *      mm   = two digits of minute (00 through 59)
+ *      ss   = two digits of second (00 through 59)
+ *      s    = one or more(max 9) digits representing a decimal fraction of a second
+ *      TZD  = time zone designator (Z or z or +hh:mm or -hh:mm)
+ *
+ */ +final class RFC3339CompatibleDateTimeFormatter extends OpenSearchDateTimeFormatter { + public static final char DATE_SEPARATOR = '-'; + public static final char TIME_SEPARATOR = ':'; + public static final char SEPARATOR_UPPER = 'T'; + private static final char PLUS = '+'; + private static final char MINUS = '-'; + private static final char SEPARATOR_LOWER = 't'; + private static final char SEPARATOR_SPACE = ' '; + private static final char FRACTION_SEPARATOR_1 = '.'; + private static final char FRACTION_SEPARATOR_2 = ','; + private static final char ZULU_UPPER = 'Z'; + private static final char ZULU_LOWER = 'z'; + + private ZoneId zone; + + public RFC3339CompatibleDateTimeFormatter(String pattern) { + super(pattern); + } + + public RFC3339CompatibleDateTimeFormatter(java.time.format.DateTimeFormatter formatter) { + super(formatter); + } + + public RFC3339CompatibleDateTimeFormatter(java.time.format.DateTimeFormatter formatter, ZoneId zone) { + super(formatter); + this.zone = zone; + } + + @Override + public OpenSearchDateTimeFormatter withZone(ZoneId zoneId) { + return new RFC3339CompatibleDateTimeFormatter(getFormatter().withZone(zoneId), zoneId); + } + + @Override + public OpenSearchDateTimeFormatter withLocale(Locale locale) { + return new RFC3339CompatibleDateTimeFormatter(getFormatter().withLocale(locale)); + } + + @Override + public Object parseObject(String text, ParsePosition pos) { + try { + return parse(text); + } catch (DateTimeException e) { + return null; + } + } + + @Override + public TemporalAccessor parse(final String dateTime) { + OffsetDateTime parsedDatetime = parse(dateTime, new ParsePosition(0)); + return zone == null ? parsedDatetime : parsedDatetime.atZoneSameInstant(zone); + } + + public OffsetDateTime parse(String date, ParsePosition pos) { + if (date == null) { + throw new IllegalArgumentException("date cannot be null"); + } + + final int len = date.length() - pos.getIndex(); + if (len <= 0) { + throw new DateTimeParseException("out of bound parse position", date, pos.getIndex()); + } + final char[] chars = date.substring(pos.getIndex()).toCharArray(); + + // Date portion + + // YEAR + final int years = getYear(chars, pos); + if (4 == len) { + return OffsetDateTime.of(years, 1, 1, 0, 0, 0, 0, ZoneOffset.UTC); + } + + // MONTH + consumeChar(chars, pos, DATE_SEPARATOR); + final int months = getMonth(chars, pos); + if (7 == len) { + return OffsetDateTime.of(years, months, 1, 0, 0, 0, 0, ZoneOffset.UTC); + } + + // DAY + consumeChar(chars, pos, DATE_SEPARATOR); + final int days = getDay(chars, pos); + if (10 == len) { + return OffsetDateTime.of(years, months, days, 0, 0, 0, 0, ZoneOffset.UTC); + } + + // HOURS + consumeChar(chars, pos, SEPARATOR_UPPER, SEPARATOR_LOWER, SEPARATOR_SPACE); + final int hours = getHour(chars, pos); + + // MINUTES + consumeChar(chars, pos, TIME_SEPARATOR); + final int minutes = getMinute(chars, pos); + if (16 == len) { + throw new DateTimeParseException("No timezone offset information", new String(chars), pos.getIndex()); + } + + // SECONDS or TIMEZONE + return handleTime(chars, pos, years, months, days, hours, minutes); + } + + private static boolean isDigit(char c) { + return (c >= '0' && c <= '9'); + } + + private static int digit(char c) { + return c - '0'; + } + + private static int readInt(final char[] strNum, ParsePosition pos, int n) { + int start = pos.getIndex(), end = start + n; + if (end > strNum.length) { + pos.setErrorIndex(end); + throw new DateTimeParseException("Unexpected end of expression at position " + strNum.length, new String(strNum), end); + } + + int result = 0; + for (int i = start; i < end; i++) { + final char c = strNum[i]; + if (isDigit(c) == false) { + pos.setErrorIndex(i); + throw new DateTimeParseException("Character " + c + " is not a digit", new String(strNum), i); + } + int digit = digit(c); + result = result * 10 + digit; + } + pos.setIndex(end); + return result; + } + + private static int readIntUnchecked(final char[] strNum, ParsePosition pos, int n) { + int start = pos.getIndex(), end = start + n; + int result = 0; + for (int i = start; i < end; i++) { + final char c = strNum[i]; + int digit = digit(c); + result = result * 10 + digit; + } + pos.setIndex(end); + return result; + } + + private static int getHour(final char[] chars, ParsePosition pos) { + return readInt(chars, pos, 2); + } + + private static int getMinute(final char[] chars, ParsePosition pos) { + return readInt(chars, pos, 2); + } + + private static int getDay(final char[] chars, ParsePosition pos) { + return readInt(chars, pos, 2); + } + + private static boolean isValidOffset(char[] chars, int offset) { + return offset < chars.length; + } + + private static void consumeChar(char[] chars, ParsePosition pos, char expected) { + int offset = pos.getIndex(); + if (isValidOffset(chars, offset) == false) { + throw new DateTimeParseException("Unexpected end of input", new String(chars), offset); + } + + if (chars[offset] != expected) { + throw new DateTimeParseException("Expected character " + expected + " at position " + offset, new String(chars), offset); + } + pos.setIndex(offset + 1); + } + + private static void consumeNextChar(char[] chars, ParsePosition pos) { + int offset = pos.getIndex(); + if (isValidOffset(chars, offset) == false) { + throw new DateTimeParseException("Unexpected end of input", new String(chars), offset); + } + pos.setIndex(offset + 1); + } + + private static boolean checkPositionContains(char[] chars, ParsePosition pos, char... expected) { + int offset = pos.getIndex(); + if (offset >= chars.length) { + throw new DateTimeParseException("Unexpected end of input", new String(chars), offset); + } + + boolean found = false; + for (char e : expected) { + if (chars[offset] == e) { + found = true; + break; + } + } + return found; + } + + private static void consumeChar(char[] chars, ParsePosition pos, char... expected) { + int offset = pos.getIndex(); + if (offset >= chars.length) { + throw new DateTimeParseException("Unexpected end of input", new String(chars), offset); + } + + boolean found = false; + for (char e : expected) { + if (chars[offset] == e) { + found = true; + pos.setIndex(offset + 1); + break; + } + } + if (!found) { + throw new DateTimeParseException( + "Expected character " + Arrays.toString(expected) + " at position " + offset, + new String(chars), + offset + ); + } + } + + private static void assertNoMoreChars(char[] chars, ParsePosition pos) { + if (chars.length > pos.getIndex()) { + throw new DateTimeParseException("Trailing junk data after position " + pos.getIndex(), new String(chars), pos.getIndex()); + } + } + + private static ZoneOffset parseTimezone(char[] chars, ParsePosition pos) { + int offset = pos.getIndex(); + final int left = chars.length - offset; + if (checkPositionContains(chars, pos, ZULU_LOWER, ZULU_UPPER)) { + consumeNextChar(chars, pos); + assertNoMoreChars(chars, pos); + return ZoneOffset.UTC; + } + + if (left != 6) { + throw new DateTimeParseException("Invalid timezone offset", new String(chars, offset, left), offset); + } + + final char sign = chars[offset]; + consumeNextChar(chars, pos); + int hours = getHour(chars, pos); + consumeChar(chars, pos, TIME_SEPARATOR); + int minutes = getMinute(chars, pos); + if (sign == MINUS) { + if (hours == 0 && minutes == 0) { + throw new DateTimeParseException("Unknown 'Local Offset Convention' date-time not allowed", new String(chars), offset); + } + hours = -hours; + minutes = -minutes; + } else if (sign != PLUS) { + throw new DateTimeParseException("Invalid character starting at position " + offset, new String(chars), offset); + } + + return ZoneOffset.ofHoursMinutes(hours, minutes); + } + + private static OffsetDateTime handleTime(char[] chars, ParsePosition pos, int year, int month, int day, int hour, int minute) { + switch (chars[pos.getIndex()]) { + case TIME_SEPARATOR: + consumeChar(chars, pos, TIME_SEPARATOR); + return handleSeconds(year, month, day, hour, minute, chars, pos); + + case PLUS: + case MINUS: + case ZULU_UPPER: + case ZULU_LOWER: + final ZoneOffset zoneOffset = parseTimezone(chars, pos); + return OffsetDateTime.of(year, month, day, hour, minute, 0, 0, zoneOffset); + } + throw new DateTimeParseException("Unexpected character " + " at position " + pos.getIndex(), new String(chars), pos.getIndex()); + } + + private static int getMonth(final char[] chars, ParsePosition pos) { + return readInt(chars, pos, 2); + } + + private static int getYear(final char[] chars, ParsePosition pos) { + return readInt(chars, pos, 4); + } + + private static int getSeconds(final char[] chars, ParsePosition pos) { + return readInt(chars, pos, 2); + } + + private static int getFractions(final char[] chars, final ParsePosition pos, final int len) { + final int fractions; + fractions = readIntUnchecked(chars, pos, len); + switch (len) { + case 0: + throw new DateTimeParseException("Must have at least 1 fraction digit", new String(chars), pos.getIndex()); + case 1: + return fractions * 100_000_000; + case 2: + return fractions * 10_000_000; + case 3: + return fractions * 1_000_000; + case 4: + return fractions * 100_000; + case 5: + return fractions * 10_000; + case 6: + return fractions * 1_000; + case 7: + return fractions * 100; + case 8: + return fractions * 10; + default: + return fractions; + } + } + + public static int indexOfNonDigit(final char[] text, int offset) { + for (int i = offset; i < text.length; i++) { + if (isDigit(text[i]) == false) { + return i; + } + } + return -1; + } + + public static void consumeDigits(final char[] text, ParsePosition pos) { + final int idx = indexOfNonDigit(text, pos.getIndex()); + if (idx == -1) { + pos.setErrorIndex(text.length); + } else { + pos.setIndex(idx); + } + } + + private static OffsetDateTime handleSeconds(int year, int month, int day, int hour, int minute, char[] chars, ParsePosition pos) { + // From here the specification is more lenient + final int seconds = getSeconds(chars, pos); + int currPos = pos.getIndex(); + final int remaining = chars.length - currPos; + if (remaining == 0) { + // No offset + throw new DateTimeParseException("No timezone offset information", new String(chars), pos.getIndex()); + } + + ZoneOffset offset = null; + int fractions = 0; + if (remaining == 1 && checkPositionContains(chars, pos, ZULU_LOWER, ZULU_UPPER)) { + consumeNextChar(chars, pos); + // Do nothing we are done + offset = ZoneOffset.UTC; + assertNoMoreChars(chars, pos); + } else if (remaining >= 1 && checkPositionContains(chars, pos, FRACTION_SEPARATOR_1, FRACTION_SEPARATOR_2)) { + // We have fractional seconds; + consumeNextChar(chars, pos); + ParsePosition initPosition = new ParsePosition(pos.getIndex()); + consumeDigits(chars, pos); + if (pos.getErrorIndex() == -1) { + // We have an end of fractions + final int len = pos.getIndex() - initPosition.getIndex(); + fractions = getFractions(chars, initPosition, len); + offset = parseTimezone(chars, pos); + } else { + throw new DateTimeParseException("No timezone offset information", new String(chars), pos.getIndex()); + } + } else if (remaining >= 1 && checkPositionContains(chars, pos, PLUS, MINUS)) { + // No fractional sections + offset = parseTimezone(chars, pos); + } else { + throw new DateTimeParseException("Unexpected character at position " + (pos.getIndex()), new String(chars), pos.getIndex()); + } + + return OffsetDateTime.of(year, month, day, hour, minute, seconds, fractions, offset); + } +} diff --git a/server/src/test/java/org/opensearch/common/joda/JavaJodaTimeDuellingTests.java b/server/src/test/java/org/opensearch/common/joda/JavaJodaTimeDuellingTests.java index e8ddfde11f4cc..4fd8986d0b428 100644 --- a/server/src/test/java/org/opensearch/common/joda/JavaJodaTimeDuellingTests.java +++ b/server/src/test/java/org/opensearch/common/joda/JavaJodaTimeDuellingTests.java @@ -779,7 +779,9 @@ public void testSamePrinterOutput() { DateTime jodaDate = new DateTime(year, month, day, hour, minute, second, DateTimeZone.UTC); for (FormatNames format : FormatNames.values()) { - if (format == FormatNames.ISO8601 || format == FormatNames.STRICT_DATE_OPTIONAL_TIME_NANOS) { + if (format == FormatNames.ISO8601 + || format == FormatNames.STRICT_DATE_OPTIONAL_TIME_NANOS + || format == FormatNames.RFC3339_LENIENT) { // Nanos aren't supported by joda continue; } diff --git a/server/src/test/java/org/opensearch/common/time/DateFormattersTests.java b/server/src/test/java/org/opensearch/common/time/DateFormattersTests.java index 681daf1755890..85c9919275c3a 100644 --- a/server/src/test/java/org/opensearch/common/time/DateFormattersTests.java +++ b/server/src/test/java/org/opensearch/common/time/DateFormattersTests.java @@ -249,10 +249,19 @@ public void testEpochSecondParserWithFraction() { } public void testEpochMilliParsersWithDifferentFormatters() { - DateFormatter formatter = DateFormatter.forPattern("strict_date_optional_time||epoch_millis"); - TemporalAccessor accessor = formatter.parse("123"); - assertThat(DateFormatters.from(accessor).toInstant().toEpochMilli(), is(123L)); - assertThat(formatter.pattern(), is("strict_date_optional_time||epoch_millis")); + { + DateFormatter formatter = DateFormatter.forPattern("strict_date_optional_time||epoch_millis"); + TemporalAccessor accessor = formatter.parse("123"); + assertThat(DateFormatters.from(accessor).toInstant().toEpochMilli(), is(123L)); + assertThat(formatter.pattern(), is("strict_date_optional_time||epoch_millis")); + } + + { + DateFormatter formatter = DateFormatter.forPattern("rfc3339_lenient||epoch_millis"); + TemporalAccessor accessor = formatter.parse("123"); + assertThat(DateFormatters.from(accessor).toInstant().toEpochMilli(), is(123L)); + assertThat(formatter.pattern(), is("rfc3339_lenient||epoch_millis")); + } } public void testParsersWithMultipleInternalFormats() throws Exception { @@ -317,6 +326,11 @@ public void testEqualsAndHashcode() { assertThat(epochMillisFormatter.hashCode(), is(DateFormatters.forPattern("epoch_millis").hashCode())); assertThat(epochMillisFormatter, sameInstance(DateFormatters.forPattern("epoch_millis"))); assertThat(epochMillisFormatter, equalTo(DateFormatters.forPattern("epoch_millis"))); + + DateFormatter rfc339Formatter = DateFormatters.forPattern("rfc3339_lenient"); + assertThat(rfc339Formatter.hashCode(), is(DateFormatters.forPattern("rfc3339_lenient").hashCode())); + assertThat(rfc339Formatter, sameInstance(DateFormatters.forPattern("rfc3339_lenient"))); + assertThat(rfc339Formatter, equalTo(DateFormatters.forPattern("rfc3339_lenient"))); } public void testSupportBackwardsJava8Format() { @@ -461,6 +475,132 @@ public void testIso8601Parsing() { formatter.format(formatter.parse("2018-05-15T17:14:56,123456789+01:00")); } + public void testRFC3339Parsing() { + DateFormatter formatter = DateFormatters.forPattern("rfc3339_lenient"); + + // timezone not allowed with just date + formatter.format(formatter.parse("2018")); + formatter.format(formatter.parse("2018-05")); + formatter.format(formatter.parse("2018-05-15")); + + formatter.format(formatter.parse("2018-05-15T17:14Z")); + formatter.format(formatter.parse("2018-05-15T17:14z")); + formatter.format(formatter.parse("2018-05-15T17:14+01:00")); + formatter.format(formatter.parse("2018-05-15T17:14-01:00")); + + formatter.format(formatter.parse("2018-05-15T17:14:56Z")); + formatter.format(formatter.parse("2018-05-15T17:14:56z")); + formatter.format(formatter.parse("2018-05-15T17:14:56+01:00")); + formatter.format(formatter.parse("2018-05-15T17:14:56-01:00")); + + // milliseconds can be separated using comma or decimal point + formatter.format(formatter.parse("2018-05-15T17:14:56.123Z")); + formatter.format(formatter.parse("2018-05-15T17:14:56.123z")); + formatter.format(formatter.parse("2018-05-15T17:14:56.123-01:00")); + formatter.format(formatter.parse("2018-05-15T17:14:56,123Z")); + formatter.format(formatter.parse("2018-05-15T17:14:56,123z")); + formatter.format(formatter.parse("2018-05-15T17:14:56,123+01:00")); + + // microseconds can be separated using comma or decimal point + formatter.format(formatter.parse("2018-05-15T17:14:56.123456Z")); + formatter.format(formatter.parse("2018-05-15T17:14:56.123456z")); + formatter.format(formatter.parse("2018-05-15T17:14:56.123456+01:00")); + formatter.format(formatter.parse("2018-05-15T17:14:56,123456Z")); + formatter.format(formatter.parse("2018-05-15T17:14:56,123456z")); + formatter.format(formatter.parse("2018-05-15T17:14:56,123456-01:00")); + + // nanoseconds can be separated using comma or decimal point + formatter.format(formatter.parse("2018-05-15T17:14:56.123456789Z")); + formatter.format(formatter.parse("2018-05-15T17:14:56.123456789-01:00")); + formatter.format(formatter.parse("2018-05-15T17:14:56,123456789Z")); + formatter.format(formatter.parse("2018-05-15T17:14:56,123456789z")); + formatter.format(formatter.parse("2018-05-15T17:14:56,123456789+01:00")); + + // 1994-11-05T08:15:30-05:00 corresponds to November 5, 1994, 8:15:30 am, US Eastern Standard Time/ + // 1994-11-05T13:15:30Z corresponds to the same instant. + final Instant instantA = DateFormatters.from(formatter.parse("1994-11-05T08:15:30-05:00")).toInstant(); + final Instant instantB = DateFormatters.from(formatter.parse("1994-11-05T13:15:30Z")).toInstant(); + assertThat(instantA, is(instantB)); + + // Invalid dates should throw an exception + IllegalArgumentException e = expectThrows(IllegalArgumentException.class, () -> formatter.parse("abc")); + assertThat(e.getMessage(), is("failed to parse date field [abc] with format [rfc3339_lenient]")); + // Invalid offset + e = expectThrows(IllegalArgumentException.class, () -> formatter.parse("2018-05-15T17:14:56-00:00")); + assertThat(e.getMessage(), is("failed to parse date field [2018-05-15T17:14:56-00:00] with format [rfc3339_lenient]")); + e = expectThrows(IllegalArgumentException.class, () -> formatter.parse("2018-05-15T17:14:56.+00:00")); + assertThat(e.getMessage(), is("failed to parse date field [2018-05-15T17:14:56.+00:00] with format [rfc3339_lenient]")); + e = expectThrows(IllegalArgumentException.class, () -> formatter.parse("2018-05-15T17:14:56_00:00")); + assertThat(e.getMessage(), is("failed to parse date field [2018-05-15T17:14:56_00:00] with format [rfc3339_lenient]")); + // No offset + e = expectThrows(IllegalArgumentException.class, () -> formatter.parse("2018-05-15T17:14:56")); + assertThat(e.getMessage(), is("failed to parse date field [2018-05-15T17:14:56] with format [rfc3339_lenient]")); + e = expectThrows(IllegalArgumentException.class, () -> formatter.parse("2018-05-15T17:14:56.123")); + assertThat(e.getMessage(), is("failed to parse date field [2018-05-15T17:14:56.123] with format [rfc3339_lenient]")); + // No end of fraction + e = expectThrows(IllegalArgumentException.class, () -> formatter.parse("2018-05-15T17:14:56.123")); + assertThat(e.getMessage(), is("failed to parse date field [2018-05-15T17:14:56.123] with format [rfc3339_lenient]")); + // Invalid fraction + e = expectThrows(IllegalArgumentException.class, () -> formatter.parse("2018-05-15T17:14:56.abcZ")); + assertThat(e.getMessage(), is("failed to parse date field [2018-05-15T17:14:56.abcZ] with format [rfc3339_lenient]")); + // Invalid date + e = expectThrows(IllegalArgumentException.class, () -> formatter.parse("201805-15T17:14:56.123456+0000")); + assertThat(e.getMessage(), is("failed to parse date field [201805-15T17:14:56.123456+0000] with format [rfc3339_lenient]")); + // More than 9 digits of nanosecond resolution + e = expectThrows(IllegalArgumentException.class, () -> formatter.parse("2018-05-15T17:14:56.1234567891Z")); + assertThat(e.getMessage(), is("failed to parse date field [2018-05-15T17:14:56.1234567891Z] with format [rfc3339_lenient]")); + } + + public void testRFC3339ParserWithDifferentFormatters() { + { + DateFormatter formatter = DateFormatter.forPattern("strict_date_optional_time||rfc3339_lenient"); + TemporalAccessor accessor = formatter.parse("2018-05-15T17:14:56+0100"); + assertThat(DateFormatters.from(accessor).toInstant().toEpochMilli(), is(1526400896000L)); + assertThat(formatter.pattern(), is("strict_date_optional_time||rfc3339_lenient")); + } + + { + DateFormatter formatter = DateFormatter.forPattern("rfc3339_lenient||strict_date_optional_time"); + TemporalAccessor accessor = formatter.parse("2018-05-15T17:14:56.123+0100"); + assertThat(DateFormatters.from(accessor).toInstant().toEpochMilli(), is(1526400896123L)); + assertThat(formatter.pattern(), is("rfc3339_lenient||strict_date_optional_time")); + } + + { + DateFormatter formatter = DateFormatter.forPattern("rfc3339_lenient||strict_date_optional_time"); + TemporalAccessor accessor = formatter.parse("2018-05-15T17:14:56.123456789+0100"); + assertThat(DateFormatters.from(accessor).toInstant().getNano(), is(123456789)); + assertThat(formatter.pattern(), is("rfc3339_lenient||strict_date_optional_time")); + } + } + + public void testRFC3339ParserAgainstDifferentFormatters() { + DateFormatter rfc3339Formatter = DateFormatter.forPattern("rfc3339_lenient"); + { + DateFormatter isoFormatter = DateFormatter.forPattern("strict_date_optional_time"); + + assertDateTimeEquals("2018-05-15T17:14Z", rfc3339Formatter, isoFormatter); + assertDateTimeEquals("2018-05-15T17:14+01:00", rfc3339Formatter, isoFormatter); + assertDateTimeEquals("2018-05-15T17:14-01:00", rfc3339Formatter, isoFormatter); + + assertDateTimeEquals("2018-05-15T17:14:56Z", rfc3339Formatter, isoFormatter); + assertDateTimeEquals("2018-05-15T17:14:56+01:00", rfc3339Formatter, isoFormatter); + assertDateTimeEquals("2018-05-15T17:14:56-01:00", rfc3339Formatter, isoFormatter); + + assertDateTimeEquals("2018-05-15T17:14:56.123Z", rfc3339Formatter, isoFormatter); + assertDateTimeEquals("2018-05-15T17:14:56.123+01:00", rfc3339Formatter, isoFormatter); + assertDateTimeEquals("2018-05-15T17:14:56.123-01:00", rfc3339Formatter, isoFormatter); + assertDateTimeEquals("2018-05-15T17:14:56,123+01:00", rfc3339Formatter, isoFormatter); + assertDateTimeEquals("2018-05-15T17:14:56,123-01:00", rfc3339Formatter, isoFormatter); + + assertDateTimeEquals("2018-05-15T17:14:56.123456Z", rfc3339Formatter, isoFormatter); + assertDateTimeEquals("2018-05-15T17:14:56.123456789+01:00", rfc3339Formatter, isoFormatter); + assertDateTimeEquals("2018-05-15T17:14:56.123456789-01:00", rfc3339Formatter, isoFormatter); + assertDateTimeEquals("2018-05-15T17:14:56,123456789+01:00", rfc3339Formatter, isoFormatter); + assertDateTimeEquals("2018-05-15T17:14:56,123456789-01:00", rfc3339Formatter, isoFormatter); + } + } + public void testRoundupFormatterWithEpochDates() { assertRoundupFormatter("epoch_millis", "1234567890", 1234567890L); // also check nanos of the epoch_millis formatter if it is rounded up to the nano second @@ -683,4 +823,10 @@ public void testCamelCaseDeprecation() { } } } + + void assertDateTimeEquals(String toTest, DateFormatter candidateParser, DateFormatter baselineParser) { + Instant gotInstant = DateFormatters.from(candidateParser.parse(toTest)).toInstant(); + Instant expectedInstant = DateFormatters.from(baselineParser.parse(toTest)).toInstant(); + assertThat(gotInstant, is(expectedInstant)); + } }