org.elasticsearch.xpack.core.ml.dataframe.stats.common.FoldValues Maven / Gradle / Ivy
/*
* 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; you may not use this file except in compliance with the Elastic License
* 2.0.
*/
package org.elasticsearch.xpack.core.ml.dataframe.stats.common;
import org.elasticsearch.common.ParseField;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Writeable;
import org.elasticsearch.common.xcontent.ConstructingObjectParser;
import org.elasticsearch.common.xcontent.ToXContentObject;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentParser;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import java.util.Objects;
public class FoldValues implements Writeable, ToXContentObject {
public static final ParseField FOLD = new ParseField("fold");
public static final ParseField VALUES = new ParseField("values");
public static FoldValues fromXContent(XContentParser parser, boolean ignoreUnknownFields) {
return createParser(ignoreUnknownFields).apply(parser, null);
}
private static ConstructingObjectParser createParser(boolean ignoreUnknownFields) {
ConstructingObjectParser parser = new ConstructingObjectParser<>("fold_values", ignoreUnknownFields,
a -> new FoldValues((int) a[0], (List) a[1]));
parser.declareInt(ConstructingObjectParser.constructorArg(), FOLD);
parser.declareDoubleArray(ConstructingObjectParser.constructorArg(), VALUES);
return parser;
}
private final int fold;
private final double[] values;
private FoldValues(int fold, List values) {
this(fold, values.stream().mapToDouble(Double::doubleValue).toArray());
}
public FoldValues(int fold, double[] values) {
this.fold = fold;
this.values = values;
}
public FoldValues(StreamInput in) throws IOException {
fold = in.readVInt();
values = in.readDoubleArray();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeVInt(fold);
out.writeDoubleArray(values);
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject();
builder.field(FOLD.getPreferredName(), fold);
builder.array(VALUES.getPreferredName(), values);
builder.endObject();
return builder;
}
@Override
public boolean equals(Object o) {
if (o == this) return true;
if (o == null || getClass() != o.getClass()) return false;
FoldValues other = (FoldValues) o;
return fold == other.fold && Arrays.equals(values, other.values);
}
@Override
public int hashCode() {
return Objects.hash(fold, Arrays.hashCode(values));
}
}