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* Licensed to Elasticsearch under one or more contributor
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* 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.metrics.percentiles;
import org.elasticsearch.common.ParseField;
import org.elasticsearch.search.aggregations.AggregatorFactory;
import org.elasticsearch.search.aggregations.metrics.percentiles.hdr.HDRPercentilesAggregator;
import org.elasticsearch.search.aggregations.metrics.percentiles.tdigest.InternalTDigestPercentiles;
import org.elasticsearch.search.aggregations.metrics.percentiles.tdigest.TDigestPercentilesAggregator;
import org.elasticsearch.search.aggregations.support.ValuesSource.Numeric;
import org.elasticsearch.search.aggregations.support.ValuesSourceConfig;
import org.elasticsearch.search.internal.SearchContext;
/**
*
*/
public class PercentilesParser extends AbstractPercentilesParser {
public static final ParseField PERCENTS_FIELD = new ParseField("percents");
public PercentilesParser() {
super(true);
}
private final static double[] DEFAULT_PERCENTS = new double[] { 1, 5, 25, 50, 75, 95, 99 };
@Override
public String type() {
return InternalTDigestPercentiles.TYPE.name();
}
@Override
protected ParseField keysField() {
return PERCENTS_FIELD;
}
@Override
protected AggregatorFactory buildFactory(SearchContext context, String aggregationName, ValuesSourceConfig<Numeric> valuesSourceConfig,
double[] keys, PercentilesMethod method, Double compression, Integer numberOfSignificantValueDigits, boolean keyed) {
if (keys == null) {
keys = DEFAULT_PERCENTS;
}
if (method == PercentilesMethod.TDIGEST) {
return new TDigestPercentilesAggregator.Factory(aggregationName, valuesSourceConfig, keys, compression, keyed);
} else if (method == PercentilesMethod.HDR) {
return new HDRPercentilesAggregator.Factory(aggregationName, valuesSourceConfig, keys, numberOfSignificantValueDigits, keyed);
} else {
throw new AssertionError();
}
}
}