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/*
* 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.search.aggregations.bucket.range;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.xcontent.ObjectParser;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.index.query.QueryShardContext;
import org.elasticsearch.search.DocValueFormat;
import org.elasticsearch.search.aggregations.AggregationBuilder;
import org.elasticsearch.search.aggregations.AggregatorFactories.Builder;
import org.elasticsearch.search.aggregations.AggregatorFactory;
import org.elasticsearch.search.aggregations.support.ValuesSource.Numeric;
import org.elasticsearch.search.aggregations.support.ValuesSourceConfig;
import org.elasticsearch.search.aggregations.support.ValuesSourceParserHelper;
import java.io.IOException;
import java.time.ZonedDateTime;
import java.util.Map;
public class DateRangeAggregationBuilder extends AbstractRangeBuilder {
public static final String NAME = "date_range";
private static final ObjectParser PARSER;
static {
PARSER = new ObjectParser<>(DateRangeAggregationBuilder.NAME);
ValuesSourceParserHelper.declareNumericFields(PARSER, true, true, true);
PARSER.declareBoolean(DateRangeAggregationBuilder::keyed, RangeAggregator.KEYED_FIELD);
PARSER.declareObjectArray((agg, ranges) -> {
for (RangeAggregator.Range range : ranges) {
agg.addRange(range);
}
}, (p, c) -> DateRangeAggregationBuilder.parseRange(p), RangeAggregator.RANGES_FIELD);
}
public static AggregationBuilder parse(String aggregationName, XContentParser parser) throws IOException {
return PARSER.parse(parser, new DateRangeAggregationBuilder(aggregationName), null);
}
private static RangeAggregator.Range parseRange(XContentParser parser) throws IOException {
return RangeAggregator.Range.fromXContent(parser);
}
public DateRangeAggregationBuilder(String name) {
super(name, InternalDateRange.FACTORY);
}
protected DateRangeAggregationBuilder(DateRangeAggregationBuilder clone, Builder factoriesBuilder, Map metaData) {
super(clone, factoriesBuilder, metaData);
}
@Override
protected AggregationBuilder shallowCopy(Builder factoriesBuilder, Map metaData) {
return new DateRangeAggregationBuilder(this, factoriesBuilder, metaData);
}
/**
* Read from a stream.
*/
public DateRangeAggregationBuilder(StreamInput in) throws IOException {
super(in, InternalDateRange.FACTORY, RangeAggregator.Range::new);
}
@Override
public String getType() {
return NAME;
}
/**
* Add a new range to this aggregation.
*
* @param key
* the key to use for this range in the response
* @param from
* the lower bound on the dates, inclusive
* @param to
* the upper bound on the dates, exclusive
*/
public DateRangeAggregationBuilder addRange(String key, String from, String to) {
addRange(new RangeAggregator.Range(key, from, to));
return this;
}
/**
* Same as {@link #addRange(String, String, String)} but the key will be
* automatically generated based on from and to.
*/
public DateRangeAggregationBuilder addRange(String from, String to) {
return addRange(null, from, to);
}
/**
* Add a new range with no lower bound.
*
* @param key
* the key to use for this range in the response
* @param to
* the upper bound on the dates, exclusive
*/
public DateRangeAggregationBuilder addUnboundedTo(String key, String to) {
addRange(new RangeAggregator.Range(key, null, to));
return this;
}
/**
* Same as {@link #addUnboundedTo(String, String)} but the key will be
* computed automatically.
*/
public DateRangeAggregationBuilder addUnboundedTo(String to) {
return addUnboundedTo(null, to);
}
/**
* Add a new range with no upper bound.
*
* @param key
* the key to use for this range in the response
* @param from
* the lower bound on the distances, inclusive
*/
public DateRangeAggregationBuilder addUnboundedFrom(String key, String from) {
addRange(new RangeAggregator.Range(key, from, null));
return this;
}
/**
* Same as {@link #addUnboundedFrom(String, String)} but the key will be
* computed automatically.
*/
public DateRangeAggregationBuilder addUnboundedFrom(String from) {
return addUnboundedFrom(null, from);
}
/**
* Add a new range to this aggregation.
*
* @param key
* the key to use for this range in the response
* @param from
* the lower bound on the dates, inclusive
* @param to
* the upper bound on the dates, exclusive
*/
public DateRangeAggregationBuilder addRange(String key, double from, double to) {
addRange(new RangeAggregator.Range(key, from, to));
return this;
}
/**
* Same as {@link #addRange(String, double, double)} but the key will be
* automatically generated based on from and to.
*/
public DateRangeAggregationBuilder addRange(double from, double to) {
return addRange(null, from, to);
}
/**
* Add a new range with no lower bound.
*
* @param key
* the key to use for this range in the response
* @param to
* the upper bound on the dates, exclusive
*/
public DateRangeAggregationBuilder addUnboundedTo(String key, double to) {
addRange(new RangeAggregator.Range(key, null, to));
return this;
}
/**
* Same as {@link #addUnboundedTo(String, double)} but the key will be
* computed automatically.
*/
public DateRangeAggregationBuilder addUnboundedTo(double to) {
return addUnboundedTo(null, to);
}
/**
* Add a new range with no upper bound.
*
* @param key
* the key to use for this range in the response
* @param from
* the lower bound on the distances, inclusive
*/
public DateRangeAggregationBuilder addUnboundedFrom(String key, double from) {
addRange(new RangeAggregator.Range(key, from, null));
return this;
}
/**
* Same as {@link #addUnboundedFrom(String, double)} but the key will be
* computed automatically.
*/
public DateRangeAggregationBuilder addUnboundedFrom(double from) {
return addUnboundedFrom(null, from);
}
/**
* Add a new range to this aggregation.
*
* @param key
* the key to use for this range in the response
* @param from
* the lower bound on the dates, inclusive
* @param to
* the upper bound on the dates, exclusive
*/
public DateRangeAggregationBuilder addRange(String key, ZonedDateTime from, ZonedDateTime to) {
addRange(new RangeAggregator.Range(key, convertDateTime(from), convertDateTime(to)));
return this;
}
private static Double convertDateTime(ZonedDateTime dateTime) {
if (dateTime == null) {
return null;
} else {
return (double) dateTime.toInstant().toEpochMilli();
}
}
/**
* Same as {@link #addRange(String, ZonedDateTime, ZonedDateTime)} but the key will be
* automatically generated based on from and to.
*/
public DateRangeAggregationBuilder addRange(ZonedDateTime from, ZonedDateTime to) {
return addRange(null, from, to);
}
/**
* Add a new range with no lower bound.
*
* @param key
* the key to use for this range in the response
* @param to
* the upper bound on the dates, exclusive
*/
public DateRangeAggregationBuilder addUnboundedTo(String key, ZonedDateTime to) {
addRange(new RangeAggregator.Range(key, null, convertDateTime(to)));
return this;
}
/**
* Same as {@link #addUnboundedTo(String, ZonedDateTime)} but the key will be
* computed automatically.
*/
public DateRangeAggregationBuilder addUnboundedTo(ZonedDateTime to) {
return addUnboundedTo(null, to);
}
/**
* Add a new range with no upper bound.
*
* @param key
* the key to use for this range in the response
* @param from
* the lower bound on the distances, inclusive
*/
public DateRangeAggregationBuilder addUnboundedFrom(String key, ZonedDateTime from) {
addRange(new RangeAggregator.Range(key, convertDateTime(from), null));
return this;
}
/**
* Same as {@link #addUnboundedFrom(String, ZonedDateTime)} but the key will be
* computed automatically.
*/
public DateRangeAggregationBuilder addUnboundedFrom(ZonedDateTime from) {
return addUnboundedFrom(null, from);
}
@Override
protected DateRangeAggregatorFactory innerBuild(QueryShardContext queryShardContext, ValuesSourceConfig config,
AggregatorFactory parent, Builder subFactoriesBuilder) throws IOException {
// We need to call processRanges here so they are parsed and we know whether `now` has been used before we make
// the decision of whether to cache the request
RangeAggregator.Range[] ranges = processRanges(range -> {
DocValueFormat parser = config.format();
assert parser != null;
double from = range.getFrom();
double to = range.getTo();
String fromAsString = range.getFromAsString();
String toAsString = range.getToAsString();
if (fromAsString != null) {
from = parser.parseDouble(fromAsString, false, queryShardContext::nowInMillis);
} else if (Double.isFinite(from)) {
// from/to provided as double should be converted to string and parsed regardless to support
// different formats like `epoch_millis` vs. `epoch_second` with numeric input
from = parser.parseDouble(Long.toString((long) from), false, queryShardContext::nowInMillis);
}
if (toAsString != null) {
to = parser.parseDouble(toAsString, false, queryShardContext::nowInMillis);
} else if (Double.isFinite(to)) {
to = parser.parseDouble(Long.toString((long) to), false, queryShardContext::nowInMillis);
}
return new RangeAggregator.Range(range.getKey(), from, fromAsString, to, toAsString);
});
if (ranges.length == 0) {
throw new IllegalArgumentException("No [ranges] specified for the [" + this.getName() + "] aggregation");
}
return new DateRangeAggregatorFactory(name, config, ranges, keyed, rangeFactory, queryShardContext, parent, subFactoriesBuilder,
metaData);
}
}