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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.metrics;
import org.elasticsearch.common.ParseField;
import org.elasticsearch.common.collect.Tuple;
import org.elasticsearch.common.xcontent.ConstructingObjectParser;
import org.elasticsearch.common.xcontent.ObjectParser;
import org.elasticsearch.common.xcontent.ObjectParser.ValueType;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.search.aggregations.metrics.InternalExtendedStats.Fields;
import java.io.IOException;
import static org.elasticsearch.common.xcontent.ConstructingObjectParser.constructorArg;
public class ParsedExtendedStats extends ParsedStats implements ExtendedStats {
protected double sumOfSquares;
protected double variance;
protected double stdDeviation;
protected double stdDeviationBoundUpper;
protected double stdDeviationBoundLower;
protected double sum;
protected double avg;
@Override
public String getType() {
return ExtendedStatsAggregationBuilder.NAME;
}
@Override
public double getSumOfSquares() {
return sumOfSquares;
}
@Override
public double getVariance() {
return variance;
}
@Override
public double getStdDeviation() {
return stdDeviation;
}
private void setStdDeviationBounds(Tuple bounds) {
this.stdDeviationBoundLower = bounds.v1();
this.stdDeviationBoundUpper = bounds.v2();
}
@Override
public double getStdDeviationBound(Bounds bound) {
return (bound.equals(Bounds.LOWER)) ? stdDeviationBoundLower : stdDeviationBoundUpper;
}
@Override
public String getStdDeviationAsString() {
return valueAsString.getOrDefault(Fields.STD_DEVIATION_AS_STRING, Double.toString(stdDeviation));
}
private void setStdDeviationBoundsAsString(Tuple boundsAsString) {
this.valueAsString.put(Fields.STD_DEVIATION_BOUNDS_AS_STRING + "_lower", boundsAsString.v1());
this.valueAsString.put(Fields.STD_DEVIATION_BOUNDS_AS_STRING + "_upper", boundsAsString.v2());
}
@Override
public String getStdDeviationBoundAsString(Bounds bound) {
if (bound.equals(Bounds.LOWER)) {
return valueAsString.getOrDefault(Fields.STD_DEVIATION_BOUNDS_AS_STRING + "_lower", Double.toString(stdDeviationBoundLower));
} else {
return valueAsString.getOrDefault(Fields.STD_DEVIATION_BOUNDS_AS_STRING + "_upper", Double.toString(stdDeviationBoundUpper));
}
}
@Override
public String getSumOfSquaresAsString() {
return valueAsString.getOrDefault(Fields.SUM_OF_SQRS_AS_STRING, Double.toString(sumOfSquares));
}
@Override
public String getVarianceAsString() {
return valueAsString.getOrDefault(Fields.VARIANCE_AS_STRING, Double.toString(variance));
}
@Override
protected XContentBuilder otherStatsToXContent(XContentBuilder builder, Params params) throws IOException {
if (count != 0) {
builder.field(Fields.SUM_OF_SQRS, sumOfSquares);
builder.field(Fields.VARIANCE, getVariance());
builder.field(Fields.STD_DEVIATION, getStdDeviation());
builder.startObject(Fields.STD_DEVIATION_BOUNDS);
{
builder.field(Fields.UPPER, getStdDeviationBound(Bounds.UPPER));
builder.field(Fields.LOWER, getStdDeviationBound(Bounds.LOWER));
}
builder.endObject();
if (valueAsString.containsKey(Fields.SUM_OF_SQRS_AS_STRING)) {
builder.field(Fields.SUM_OF_SQRS_AS_STRING, getSumOfSquaresAsString());
builder.field(Fields.VARIANCE_AS_STRING, getVarianceAsString());
builder.field(Fields.STD_DEVIATION_AS_STRING, getStdDeviationAsString());
builder.startObject(Fields.STD_DEVIATION_BOUNDS_AS_STRING);
{
builder.field(Fields.UPPER, getStdDeviationBoundAsString(Bounds.UPPER));
builder.field(Fields.LOWER, getStdDeviationBoundAsString(Bounds.LOWER));
}
builder.endObject();
}
} else {
builder.nullField(Fields.SUM_OF_SQRS);
builder.nullField(Fields.VARIANCE);
builder.nullField(Fields.STD_DEVIATION);
builder.startObject(Fields.STD_DEVIATION_BOUNDS);
{
builder.nullField(Fields.UPPER);
builder.nullField(Fields.LOWER);
}
builder.endObject();
}
return builder;
}
private static final ObjectParser PARSER = new ObjectParser<>(ParsedExtendedStats.class.getSimpleName(),
true, ParsedExtendedStats::new);
private static final ConstructingObjectParser, Void> STD_BOUNDS_PARSER = new ConstructingObjectParser<>(
ParsedExtendedStats.class.getSimpleName() + "_STD_BOUNDS", true, args -> new Tuple<>((Double) args[0], (Double) args[1]));
private static final ConstructingObjectParser, Void> STD_BOUNDS_AS_STRING_PARSER = new ConstructingObjectParser<>(
ParsedExtendedStats.class.getSimpleName() + "_STD_BOUNDS_AS_STRING", true,
args -> new Tuple<>((String) args[0], (String) args[1]));
static {
STD_BOUNDS_PARSER.declareField(constructorArg(), (parser, context) -> parseDouble(parser, 0),
new ParseField(Fields.LOWER), ValueType.DOUBLE_OR_NULL);
STD_BOUNDS_PARSER.declareField(constructorArg(), (parser, context) -> parseDouble(parser, 0),
new ParseField(Fields.UPPER), ValueType.DOUBLE_OR_NULL);
STD_BOUNDS_AS_STRING_PARSER.declareString(constructorArg(), new ParseField(Fields.LOWER));
STD_BOUNDS_AS_STRING_PARSER.declareString(constructorArg(), new ParseField(Fields.UPPER));
declareExtendedStatsFields(PARSER);
}
protected static void declareExtendedStatsFields(ObjectParser objectParser) {
declareAggregationFields(objectParser);
declareStatsFields(objectParser);
objectParser.declareField((agg, value) -> agg.sumOfSquares = value, (parser, context) -> parseDouble(parser, 0),
new ParseField(Fields.SUM_OF_SQRS), ValueType.DOUBLE_OR_NULL);
objectParser.declareField((agg, value) -> agg.variance = value, (parser, context) -> parseDouble(parser, 0),
new ParseField(Fields.VARIANCE), ValueType.DOUBLE_OR_NULL);
objectParser.declareField((agg, value) -> agg.stdDeviation = value, (parser, context) -> parseDouble(parser, 0),
new ParseField(Fields.STD_DEVIATION), ValueType.DOUBLE_OR_NULL);
objectParser.declareObject(ParsedExtendedStats::setStdDeviationBounds, STD_BOUNDS_PARSER,
new ParseField(Fields.STD_DEVIATION_BOUNDS));
objectParser.declareString((agg, value) -> agg.valueAsString.put(Fields.SUM_OF_SQRS_AS_STRING, value),
new ParseField(Fields.SUM_OF_SQRS_AS_STRING));
objectParser.declareString((agg, value) -> agg.valueAsString.put(Fields.VARIANCE_AS_STRING, value),
new ParseField(Fields.VARIANCE_AS_STRING));
objectParser.declareString((agg, value) -> agg.valueAsString.put(Fields.STD_DEVIATION_AS_STRING, value),
new ParseField(Fields.STD_DEVIATION_AS_STRING));
objectParser.declareObject(ParsedExtendedStats::setStdDeviationBoundsAsString, STD_BOUNDS_AS_STRING_PARSER,
new ParseField(Fields.STD_DEVIATION_BOUNDS_AS_STRING));
}
public static ParsedExtendedStats fromXContent(XContentParser parser, final String name) {
ParsedExtendedStats parsedStats = PARSER.apply(parser, null);
parsedStats.setName(name);
return parsedStats;
}
}