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DateFieldMapper.java
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DateFieldMapper.java
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/*
* 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.
*/
/*
* 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.
*/
/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*/
package org.opensearch.index.mapper;
import org.apache.lucene.document.LongPoint;
import org.apache.lucene.document.SortedNumericDocValuesField;
import org.apache.lucene.document.StoredField;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.PointValues;
import org.apache.lucene.sandbox.search.IndexSortSortedNumericDocValuesRangeQuery;
import org.apache.lucene.search.BoostQuery;
import org.apache.lucene.search.IndexOrDocValuesQuery;
import org.apache.lucene.search.Query;
import org.opensearch.OpenSearchParseException;
import org.opensearch.Version;
import org.opensearch.common.Nullable;
import org.opensearch.common.geo.ShapeRelation;
import org.opensearch.common.logging.DeprecationLogger;
import org.opensearch.common.lucene.BytesRefs;
import org.opensearch.common.time.DateFormatter;
import org.opensearch.common.time.DateFormatters;
import org.opensearch.common.time.DateMathParser;
import org.opensearch.common.time.DateUtils;
import org.opensearch.common.unit.TimeValue;
import org.opensearch.common.util.LocaleUtils;
import org.opensearch.index.fielddata.IndexFieldData;
import org.opensearch.index.fielddata.IndexNumericFieldData.NumericType;
import org.opensearch.index.fielddata.plain.SortedNumericIndexFieldData;
import org.opensearch.index.query.DateRangeIncludingNowQuery;
import org.opensearch.index.query.QueryRewriteContext;
import org.opensearch.index.query.QueryShardContext;
import org.opensearch.search.DocValueFormat;
import org.opensearch.search.lookup.SearchLookup;
import java.io.IOException;
import java.time.DateTimeException;
import java.time.Instant;
import java.time.ZoneId;
import java.time.ZoneOffset;
import java.util.Arrays;
import java.time.ZonedDateTime;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.function.LongSupplier;
import java.util.function.Supplier;
import static org.opensearch.common.time.DateUtils.toLong;
/**
* A {@link FieldMapper} for dates.
*
* @opensearch.internal
*/
public final class DateFieldMapper extends ParametrizedFieldMapper {
private static final DeprecationLogger DEPRECATION_LOGGER = DeprecationLogger.getLogger(DateFieldMapper.class);
public static final String CONTENT_TYPE = "date";
public static final String DATE_NANOS_CONTENT_TYPE = "date_nanos";
public static final DateFormatter DEFAULT_DATE_TIME_FORMATTER = DateFormatter.forPattern("strict_date_optional_time||epoch_millis");
/**
* Resolution of the date time
*
* @opensearch.internal
*/
public enum Resolution {
MILLISECONDS(CONTENT_TYPE, NumericType.DATE) {
@Override
public long convert(Instant instant) {
return instant.toEpochMilli();
}
@Override
public Instant toInstant(long value) {
return Instant.ofEpochMilli(value);
}
@Override
public Instant clampToValidRange(Instant instant) {
return instant;
}
@Override
public long parsePointAsMillis(byte[] value) {
return LongPoint.decodeDimension(value, 0);
}
@Override
protected Query distanceFeatureQuery(String field, float boost, long origin, TimeValue pivot) {
return LongPoint.newDistanceFeatureQuery(field, boost, origin, pivot.getMillis());
}
},
NANOSECONDS(DATE_NANOS_CONTENT_TYPE, NumericType.DATE_NANOSECONDS) {
@Override
public long convert(Instant instant) {
return toLong(instant);
}
@Override
public Instant toInstant(long value) {
return DateUtils.toInstant(value);
}
@Override
public Instant clampToValidRange(Instant instant) {
return DateUtils.clampToNanosRange(instant);
}
@Override
public long parsePointAsMillis(byte[] value) {
return DateUtils.toMilliSeconds(LongPoint.decodeDimension(value, 0));
}
@Override
protected Query distanceFeatureQuery(String field, float boost, long origin, TimeValue pivot) {
return LongPoint.newDistanceFeatureQuery(field, boost, origin, pivot.getNanos());
}
};
private final String type;
private final NumericType numericType;
Resolution(String type, NumericType numericType) {
this.type = type;
this.numericType = numericType;
}
public String type() {
return type;
}
NumericType numericType() {
return numericType;
}
/**
* Convert an {@linkplain Instant} into a long value in this resolution.
*/
public abstract long convert(Instant instant);
/**
* Convert a long value in this resolution into an instant.
*/
public abstract Instant toInstant(long value);
/**
* Return the instant that this range can represent that is closest to
* the provided instant.
*/
public abstract Instant clampToValidRange(Instant instant);
/**
* Decode the points representation of this field as milliseconds.
*/
public abstract long parsePointAsMillis(byte[] value);
public static Resolution ofOrdinal(int ord) {
for (Resolution resolution : values()) {
if (ord == resolution.ordinal()) {
return resolution;
}
}
throw new IllegalArgumentException("unknown resolution ordinal [" + ord + "]");
}
protected abstract Query distanceFeatureQuery(String field, float boost, long origin, TimeValue pivot);
}
private static DateFieldMapper toType(FieldMapper in) {
return (DateFieldMapper) in;
}
/**
* Builder for the date field mapper
*
* @opensearch.internal
*/
public static class Builder extends ParametrizedFieldMapper.Builder {
private final Parameter<Boolean> index = Parameter.indexParam(m -> toType(m).indexed, true);
private final Parameter<Boolean> docValues = Parameter.docValuesParam(m -> toType(m).hasDocValues, true);
private final Parameter<Boolean> store = Parameter.storeParam(m -> toType(m).store, false);
private final Parameter<Float> boost = Parameter.boostParam();
private final Parameter<Map<String, String>> meta = Parameter.metaParam();
private final Parameter<String> format = Parameter.stringParam(
"format",
false,
m -> toType(m).format,
DEFAULT_DATE_TIME_FORMATTER.pattern()
);
private final Parameter<Locale> locale = new Parameter<>(
"locale",
false,
() -> Locale.ROOT,
(n, c, o) -> LocaleUtils.parse(o.toString()),
m -> toType(m).locale
);
private final Parameter<String> nullValue = Parameter.stringParam("null_value", false, m -> toType(m).nullValueAsString, null)
.acceptsNull();
private final Parameter<Boolean> ignoreMalformed;
private final Resolution resolution;
private final Version indexCreatedVersion;
public Builder(
String name,
Resolution resolution,
DateFormatter dateFormatter,
boolean ignoreMalformedByDefault,
Version indexCreatedVersion
) {
super(name);
this.resolution = resolution;
this.indexCreatedVersion = indexCreatedVersion;
this.ignoreMalformed = Parameter.boolParam("ignore_malformed", true, m -> toType(m).ignoreMalformed, ignoreMalformedByDefault);
if (dateFormatter != null) {
this.format.setValue(dateFormatter.pattern());
this.locale.setValue(dateFormatter.locale());
}
}
private DateFormatter buildFormatter() {
try {
return DateFormatter.forPattern(format.getValue()).withLocale(locale.getValue());
} catch (IllegalArgumentException e) {
throw new IllegalArgumentException("Error parsing [format] on field [" + name() + "]: " + e.getMessage(), e);
}
}
@Override
protected List<Parameter<?>> getParameters() {
return Arrays.asList(index, docValues, store, format, locale, nullValue, ignoreMalformed, boost, meta);
}
private Long parseNullValue(DateFieldType fieldType) {
if (nullValue.getValue() == null) {
return null;
}
try {
return fieldType.parse(nullValue.getValue());
} catch (Exception e) {
DEPRECATION_LOGGER.deprecate(
"date_mapper_null_field",
"Error parsing ["
+ nullValue.getValue()
+ "] as date in [null_value] on field ["
+ name()
+ "]); [null_value] will be ignored"
);
return null;
}
}
@Override
public DateFieldMapper build(BuilderContext context) {
DateFieldType ft = new DateFieldType(
buildFullName(context),
index.getValue(),
store.getValue(),
docValues.getValue(),
buildFormatter(),
resolution,
nullValue.getValue(),
meta.getValue()
);
ft.setBoost(boost.getValue());
Long nullTimestamp = parseNullValue(ft);
return new DateFieldMapper(name, ft, multiFieldsBuilder.build(this, context), copyTo.build(), nullTimestamp, resolution, this);
}
}
public static final TypeParser MILLIS_PARSER = new TypeParser((n, c) -> {
boolean ignoreMalformedByDefault = IGNORE_MALFORMED_SETTING.get(c.getSettings());
return new Builder(n, Resolution.MILLISECONDS, c.getDateFormatter(), ignoreMalformedByDefault, c.indexVersionCreated());
});
public static final TypeParser NANOS_PARSER = new TypeParser((n, c) -> {
boolean ignoreMalformedByDefault = IGNORE_MALFORMED_SETTING.get(c.getSettings());
return new Builder(n, Resolution.NANOSECONDS, c.getDateFormatter(), ignoreMalformedByDefault, c.indexVersionCreated());
});
/**
* Field type for date field mapper
*
* @opensearch.internal
*/
public static final class DateFieldType extends MappedFieldType {
protected final DateFormatter dateTimeFormatter;
protected final DateMathParser dateMathParser;
protected final Resolution resolution;
protected final String nullValue;
public DateFieldType(
String name,
boolean isSearchable,
boolean isStored,
boolean hasDocValues,
DateFormatter dateTimeFormatter,
Resolution resolution,
String nullValue,
Map<String, String> meta
) {
super(name, isSearchable, isStored, hasDocValues, TextSearchInfo.SIMPLE_MATCH_ONLY, meta);
this.dateTimeFormatter = dateTimeFormatter;
this.dateMathParser = dateTimeFormatter.toDateMathParser();
this.resolution = resolution;
this.nullValue = nullValue;
}
public DateFieldType(String name) {
this(name, true, false, true, DEFAULT_DATE_TIME_FORMATTER, Resolution.MILLISECONDS, null, Collections.emptyMap());
}
public DateFieldType(String name, DateFormatter dateFormatter) {
this(name, true, false, true, dateFormatter, Resolution.MILLISECONDS, null, Collections.emptyMap());
}
public DateFieldType(String name, Resolution resolution) {
this(name, true, false, true, DEFAULT_DATE_TIME_FORMATTER, resolution, null, Collections.emptyMap());
}
public DateFieldType(String name, Resolution resolution, DateFormatter dateFormatter) {
this(name, true, false, true, dateFormatter, resolution, null, Collections.emptyMap());
}
@Override
public String typeName() {
return resolution.type();
}
public DateFormatter dateTimeFormatter() {
return dateTimeFormatter;
}
public Resolution resolution() {
return resolution;
}
protected DateMathParser dateMathParser() {
return dateMathParser;
}
// Visible for testing.
public long parse(String value) {
return resolution.convert(DateFormatters.from(dateTimeFormatter().parse(value), dateTimeFormatter().locale()).toInstant());
}
@Override
public ValueFetcher valueFetcher(QueryShardContext context, SearchLookup searchLookup, String format) {
DateFormatter defaultFormatter = dateTimeFormatter();
DateFormatter formatter = format != null
? DateFormatter.forPattern(format).withLocale(defaultFormatter.locale())
: defaultFormatter;
return new SourceValueFetcher(name(), context, nullValue) {
@Override
public String parseSourceValue(Object value) {
String date = value.toString();
long timestamp = parse(date);
ZonedDateTime dateTime = resolution().toInstant(timestamp).atZone(ZoneOffset.UTC);
return formatter.format(dateTime);
}
};
}
@Override
public Query termQuery(Object value, @Nullable QueryShardContext context) {
Query query = rangeQuery(value, value, true, true, ShapeRelation.INTERSECTS, null, null, context);
if (boost() != 1f) {
query = new BoostQuery(query, boost());
}
return query;
}
@Override
public Query rangeQuery(
Object lowerTerm,
Object upperTerm,
boolean includeLower,
boolean includeUpper,
ShapeRelation relation,
@Nullable ZoneId timeZone,
@Nullable DateMathParser forcedDateParser,
QueryShardContext context
) {
failIfNotIndexed();
if (relation == ShapeRelation.DISJOINT) {
throw new IllegalArgumentException("Field [" + name() + "] of type [" + typeName() + "] does not support DISJOINT ranges");
}
DateMathParser parser = forcedDateParser == null ? dateMathParser : forcedDateParser;
return dateRangeQuery(lowerTerm, upperTerm, includeLower, includeUpper, timeZone, parser, context, resolution, (l, u) -> {
Query query = LongPoint.newRangeQuery(name(), l, u);
if (hasDocValues()) {
Query dvQuery = SortedNumericDocValuesField.newSlowRangeQuery(name(), l, u);
query = new IndexOrDocValuesQuery(query, dvQuery);
if (context.indexSortedOnField(name())) {
query = new IndexSortSortedNumericDocValuesRangeQuery(name(), l, u, query);
}
}
return query;
});
}
public static Query dateRangeQuery(
Object lowerTerm,
Object upperTerm,
boolean includeLower,
boolean includeUpper,
@Nullable ZoneId timeZone,
DateMathParser parser,
QueryShardContext context,
Resolution resolution,
BiFunction<Long, Long, Query> builder
) {
return handleNow(context, nowSupplier -> {
long l, u;
if (lowerTerm == null) {
l = Long.MIN_VALUE;
} else {
l = parseToLong(lowerTerm, !includeLower, timeZone, parser, nowSupplier, resolution);
if (includeLower == false) {
++l;
}
}
if (upperTerm == null) {
u = Long.MAX_VALUE;
} else {
u = parseToLong(upperTerm, includeUpper, timeZone, parser, nowSupplier, resolution);
if (includeUpper == false) {
--u;
}
}
return builder.apply(l, u);
});
}
/**
* Handle {@code now} in queries.
* @param context context from which to read the current time
* @param builder build the query
* @return the result of the builder, wrapped in {@link DateRangeIncludingNowQuery} if {@code now} was used.
*/
public static Query handleNow(QueryShardContext context, Function<LongSupplier, Query> builder) {
boolean[] nowUsed = new boolean[1];
LongSupplier nowSupplier = () -> {
nowUsed[0] = true;
return context.nowInMillis();
};
Query query = builder.apply(nowSupplier);
return nowUsed[0] ? new DateRangeIncludingNowQuery(query) : query;
}
public long parseToLong(Object value, boolean roundUp, @Nullable ZoneId zone, DateMathParser dateParser, LongSupplier now) {
dateParser = dateParser == null ? dateMathParser() : dateParser;
return parseToLong(value, roundUp, zone, dateParser, now, resolution);
}
public static long parseToLong(
Object value,
boolean roundUp,
@Nullable ZoneId zone,
DateMathParser dateParser,
LongSupplier now,
Resolution resolution
) {
return resolution.convert(dateParser.parse(BytesRefs.toString(value), now, roundUp, zone));
}
@Override
public Query distanceFeatureQuery(Object origin, String pivot, float boost, QueryShardContext context) {
long originLong = parseToLong(origin, true, null, null, context::nowInMillis);
TimeValue pivotTime = TimeValue.parseTimeValue(pivot, "distance_feature.pivot");
return resolution.distanceFeatureQuery(name(), boost, originLong, pivotTime);
}
@Override
public Relation isFieldWithinQuery(
IndexReader reader,
Object from,
Object to,
boolean includeLower,
boolean includeUpper,
ZoneId timeZone,
DateMathParser dateParser,
QueryRewriteContext context
) throws IOException {
if (dateParser == null) {
dateParser = this.dateMathParser;
}
long fromInclusive = Long.MIN_VALUE;
if (from != null) {
fromInclusive = parseToLong(from, !includeLower, timeZone, dateParser, context::nowInMillis, resolution);
if (includeLower == false) {
if (fromInclusive == Long.MAX_VALUE) {
return Relation.DISJOINT;
}
++fromInclusive;
}
}
long toInclusive = Long.MAX_VALUE;
if (to != null) {
toInclusive = parseToLong(to, includeUpper, timeZone, dateParser, context::nowInMillis, resolution);
if (includeUpper == false) {
if (toInclusive == Long.MIN_VALUE) {
return Relation.DISJOINT;
}
--toInclusive;
}
}
if (PointValues.size(reader, name()) == 0) {
// no points, so nothing matches
return Relation.DISJOINT;
}
long minValue = LongPoint.decodeDimension(PointValues.getMinPackedValue(reader, name()), 0);
long maxValue = LongPoint.decodeDimension(PointValues.getMaxPackedValue(reader, name()), 0);
if (minValue >= fromInclusive && maxValue <= toInclusive) {
return Relation.WITHIN;
} else if (maxValue < fromInclusive || minValue > toInclusive) {
return Relation.DISJOINT;
} else {
return Relation.INTERSECTS;
}
}
@Override
public Function<byte[], Number> pointReaderIfPossible() {
if (isSearchable()) {
return resolution()::parsePointAsMillis;
}
return null;
}
@Override
public IndexFieldData.Builder fielddataBuilder(String fullyQualifiedIndexName, Supplier<SearchLookup> searchLookup) {
failIfNoDocValues();
return new SortedNumericIndexFieldData.Builder(name(), resolution.numericType());
}
@Override
public Object valueForDisplay(Object value) {
Long val = (Long) value;
if (val == null) {
return null;
}
return dateTimeFormatter().format(resolution.toInstant(val).atZone(ZoneOffset.UTC));
}
@Override
public DocValueFormat docValueFormat(@Nullable String format, ZoneId timeZone) {
DateFormatter dateTimeFormatter = this.dateTimeFormatter;
if (format != null) {
dateTimeFormatter = DateFormatter.forPattern(format).withLocale(dateTimeFormatter.locale());
}
if (timeZone == null) {
timeZone = ZoneOffset.UTC;
}
// the resolution here is always set to milliseconds, as aggregations use this formatter mainly and those are always in
// milliseconds. The only special case here is docvalue fields, which are handled somewhere else
// TODO maybe aggs should force millis because lots so of other places want nanos?
return new DocValueFormat.DateTime(dateTimeFormatter, timeZone, Resolution.MILLISECONDS);
}
}
private final boolean store;
private final boolean indexed;
private final boolean hasDocValues;
private final Locale locale;
private final String format;
private final boolean ignoreMalformed;
private final Long nullValue;
private final String nullValueAsString;
private final Resolution resolution;
private final boolean ignoreMalformedByDefault;
private final Version indexCreatedVersion;
private DateFieldMapper(
String simpleName,
MappedFieldType mappedFieldType,
MultiFields multiFields,
CopyTo copyTo,
Long nullValue,
Resolution resolution,
Builder builder
) {
super(simpleName, mappedFieldType, multiFields, copyTo);
this.store = builder.store.getValue();
this.indexed = builder.index.getValue();
this.hasDocValues = builder.docValues.getValue();
this.locale = builder.locale.getValue();
this.format = builder.format.getValue();
this.ignoreMalformed = builder.ignoreMalformed.getValue();
this.nullValueAsString = builder.nullValue.getValue();
this.nullValue = nullValue;
this.resolution = resolution;
this.ignoreMalformedByDefault = builder.ignoreMalformed.getDefaultValue();
this.indexCreatedVersion = builder.indexCreatedVersion;
}
@Override
public ParametrizedFieldMapper.Builder getMergeBuilder() {
return new Builder(simpleName(), resolution, null, ignoreMalformedByDefault, indexCreatedVersion).init(this);
}
@Override
public DateFieldType fieldType() {
return (DateFieldType) super.fieldType();
}
@Override
protected String contentType() {
return fieldType().resolution.type();
}
@Override
protected DateFieldMapper clone() {
return (DateFieldMapper) super.clone();
}
@Override
protected void parseCreateField(ParseContext context) throws IOException {
String dateAsString;
if (context.externalValueSet()) {
Object dateAsObject = context.externalValue();
if (dateAsObject == null) {
dateAsString = null;
} else {
dateAsString = dateAsObject.toString();
}
} else {
dateAsString = context.parser().textOrNull();
}
long timestamp;
if (dateAsString == null) {
if (nullValue == null) {
return;
}
timestamp = nullValue;
} else {
try {
timestamp = fieldType().parse(dateAsString);
} catch (IllegalArgumentException | OpenSearchParseException | DateTimeException | ArithmeticException e) {
if (ignoreMalformed) {
context.addIgnoredField(mappedFieldType.name());
return;
} else {
throw e;
}
}
}
if (indexed) {
context.doc().add(new LongPoint(fieldType().name(), timestamp));
}
if (hasDocValues) {
context.doc().add(new SortedNumericDocValuesField(fieldType().name(), timestamp));
} else if (store || indexed) {
createFieldNamesField(context);
}
if (store) {
context.doc().add(new StoredField(fieldType().name(), timestamp));
}
}
public boolean getIgnoreMalformed() {
return ignoreMalformed;
}
public Long getNullValue() {
return nullValue;
}
}