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* the Apache License, Version 2.0 (the "License"); you may
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* 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
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package org.elasticsearch.search.aggregations.bucket.histogram;
import org.elasticsearch.common.rounding.Rounding;
import org.elasticsearch.search.aggregations.Aggregator;
import org.elasticsearch.search.aggregations.AggregatorFactories;
import org.elasticsearch.search.aggregations.AggregatorFactory;
import org.elasticsearch.search.aggregations.pipeline.PipelineAggregator;
import org.elasticsearch.search.aggregations.BucketOrder;
import org.elasticsearch.search.aggregations.support.ValuesSource;
import org.elasticsearch.search.aggregations.support.ValuesSource.Numeric;
import org.elasticsearch.search.aggregations.support.ValuesSourceAggregatorFactory;
import org.elasticsearch.search.aggregations.support.ValuesSourceConfig;
import org.elasticsearch.search.internal.SearchContext;
import java.io.IOException;
import java.util.List;
import java.util.Map;
public final class DateHistogramAggregatorFactory
extends ValuesSourceAggregatorFactory<ValuesSource.Numeric, DateHistogramAggregatorFactory> {
private final DateHistogramInterval dateHistogramInterval;
private final long interval;
private final long offset;
private final BucketOrder order;
private final boolean keyed;
private final long minDocCount;
private final ExtendedBounds extendedBounds;
private Rounding rounding;
public DateHistogramAggregatorFactory(String name, ValuesSourceConfig<Numeric> config, long interval,
DateHistogramInterval dateHistogramInterval, long offset, BucketOrder order, boolean keyed, long minDocCount,
Rounding rounding, ExtendedBounds extendedBounds, SearchContext context, AggregatorFactory<?> parent,
AggregatorFactories.Builder subFactoriesBuilder, Map<String, Object> metaData) throws IOException {
super(name, config, context, parent, subFactoriesBuilder, metaData);
this.interval = interval;
this.dateHistogramInterval = dateHistogramInterval;
this.offset = offset;
this.order = order;
this.keyed = keyed;
this.minDocCount = minDocCount;
this.extendedBounds = extendedBounds;
this.rounding = rounding;
}
public long minDocCount() {
return minDocCount;
}
@Override
protected Aggregator doCreateInternal(ValuesSource.Numeric valuesSource, Aggregator parent, boolean collectsFromSingleBucket,
List<PipelineAggregator> pipelineAggregators, Map<String, Object> metaData) throws IOException {
if (collectsFromSingleBucket == false) {
return asMultiBucketAggregator(this, context, parent);
}
return createAggregator(valuesSource, parent, pipelineAggregators, metaData);
}
private Aggregator createAggregator(ValuesSource.Numeric valuesSource, Aggregator parent, List<PipelineAggregator> pipelineAggregators,
Map<String, Object> metaData) throws IOException {
return new DateHistogramAggregator(name, factories, rounding, offset, order, keyed, minDocCount, extendedBounds, valuesSource,
config.format(), context, parent, pipelineAggregators, metaData);
}
@Override
protected Aggregator createUnmapped(Aggregator parent, List<PipelineAggregator> pipelineAggregators, Map<String, Object> metaData)
throws IOException {
return createAggregator(null, parent, pipelineAggregators, metaData);
}
}