org.elasticsearch.search.aggregations.pipeline.InternalDerivative Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of elasticsearch Show documentation
Show all versions of elasticsearch Show documentation
Elasticsearch subproject :distribution:archives:integ-test-zip
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.search.aggregations.pipeline;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.search.DocValueFormat;
import org.elasticsearch.xcontent.XContentBuilder;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.Objects;
public class InternalDerivative extends InternalSimpleValue implements Derivative {
private final double normalizationFactor;
InternalDerivative(String name, double value, double normalizationFactor, DocValueFormat formatter, Map metadata) {
super(name, value, formatter, metadata);
this.normalizationFactor = normalizationFactor;
}
/**
* Read from a stream.
*/
public InternalDerivative(StreamInput in) throws IOException {
super(in);
normalizationFactor = in.readDouble();
}
@Override
protected void doWriteTo(StreamOutput out) throws IOException {
super.doWriteTo(out);
out.writeDouble(normalizationFactor);
}
@Override
public String getWriteableName() {
return DerivativePipelineAggregationBuilder.NAME;
}
@Override
public double normalizedValue() {
return normalizationFactor > 0 ? (value() / normalizationFactor) : value();
}
DocValueFormat formatter() {
return format;
}
double getNormalizationFactor() {
return normalizationFactor;
}
@Override
public Object getProperty(List path) {
if (path.isEmpty()) {
return this;
} else if (path.size() == 1 && "value".equals(path.get(0))) {
return value();
} else if (path.size() == 1 && "normalized_value".equals(path.get(0))) {
return normalizedValue();
} else {
throw new IllegalArgumentException("path not supported for [" + getName() + "]: " + path);
}
}
@Override
public XContentBuilder doXContentBody(XContentBuilder builder, Params params) throws IOException {
super.doXContentBody(builder, params);
if (normalizationFactor > 0) {
boolean hasValue = (Double.isInfinite(normalizedValue()) || Double.isNaN(normalizedValue())) == false;
builder.field("normalized_value", hasValue ? normalizedValue() : null);
if (hasValue && format != DocValueFormat.RAW) {
builder.field("normalized_value_as_string", format.format(normalizedValue()));
}
}
return builder;
}
@Override
public int hashCode() {
return Objects.hash(super.hashCode(), normalizationFactor, value);
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null || getClass() != obj.getClass()) return false;
if (super.equals(obj) == false) return false;
InternalDerivative other = (InternalDerivative) obj;
return Objects.equals(value, other.value) && Objects.equals(normalizationFactor, other.normalizationFactor);
}
}