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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.pipeline.bucketmetrics.stats.extended;
import org.elasticsearch.common.ParseField;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.search.aggregations.AggregatorFactory;
import org.elasticsearch.search.aggregations.PipelineAggregationBuilder;
import org.elasticsearch.search.aggregations.pipeline.PipelineAggregator;
import org.elasticsearch.search.aggregations.pipeline.PipelineAggregator.Parser;
import org.elasticsearch.search.aggregations.pipeline.bucketmetrics.BucketMetricsPipelineAggregationBuilder;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.Objects;
public class ExtendedStatsBucketPipelineAggregationBuilder
extends BucketMetricsPipelineAggregationBuilder<ExtendedStatsBucketPipelineAggregationBuilder> {
public static final String NAME = ExtendedStatsBucketPipelineAggregator.TYPE.name();
public static final ParseField AGGREGATION_NAME_FIELD = new ParseField(NAME);
private double sigma = 2.0;
public ExtendedStatsBucketPipelineAggregationBuilder(String name, String bucketsPath) {
super(name, ExtendedStatsBucketPipelineAggregator.TYPE.name(), new String[] { bucketsPath });
}
/**
* Read from a stream.
*/
public ExtendedStatsBucketPipelineAggregationBuilder(StreamInput in) throws IOException {
super(in, ExtendedStatsBucketPipelineAggregator.TYPE.name());
sigma = in.readDouble();
}
@Override
protected void innerWriteTo(StreamOutput out) throws IOException {
out.writeDouble(sigma);
}
/**
* Set the value of sigma to use when calculating the standard deviation
* bounds
*/
public ExtendedStatsBucketPipelineAggregationBuilder sigma(double sigma) {
if (sigma < 0.0) {
throw new IllegalArgumentException(ExtendedStatsBucketParser.SIGMA.getPreferredName() + " must be a non-negative double");
}
this.sigma = sigma;
return this;
}
/**
* Get the value of sigma to use when calculating the standard deviation
* bounds
*/
public double sigma() {
return sigma;
}
@Override
protected PipelineAggregator createInternal(Map<String, Object> metaData) throws IOException {
return new ExtendedStatsBucketPipelineAggregator(name, bucketsPaths, sigma, gapPolicy(), formatter(), metaData);
}
@Override
public void doValidate(AggregatorFactory<?> parent, AggregatorFactory<?>[] aggFactories,
List<PipelineAggregationBuilder> pipelineAggregatorFactories) {
if (bucketsPaths.length != 1) {
throw new IllegalStateException(Parser.BUCKETS_PATH.getPreferredName()
+ " must contain a single entry for aggregation [" + name + "]");
}
if (sigma < 0.0 ) {
throw new IllegalStateException(ExtendedStatsBucketParser.SIGMA.getPreferredName()
+ " must be a non-negative double");
}
}
@Override
protected XContentBuilder doXContentBody(XContentBuilder builder, Params params) throws IOException {
builder.field(ExtendedStatsBucketParser.SIGMA.getPreferredName(), sigma);
return builder;
}
@Override
protected int innerHashCode() {
return Objects.hash(sigma);
}
@Override
protected boolean innerEquals(BucketMetricsPipelineAggregationBuilder<ExtendedStatsBucketPipelineAggregationBuilder> obj) {
ExtendedStatsBucketPipelineAggregationBuilder other = (ExtendedStatsBucketPipelineAggregationBuilder) obj;
return Objects.equals(sigma, other.sigma);
}
@Override
public String getWriteableName() {
return NAME;
}
}
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