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Elasticsearch subproject :server

There is a newer version: 8.15.1

/*
 * 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.health;

import org.elasticsearch.common.collect.Iterators;
import org.elasticsearch.common.xcontent.ChunkedToXContentObject;
import org.elasticsearch.xcontent.ToXContent;

import java.util.Collections;
import java.util.Iterator;
import java.util.List;

public record HealthIndicatorResult(
    String name,
    HealthStatus status,
    String symptom,
    HealthIndicatorDetails details,
    List impacts,
    List diagnosisList
) implements ChunkedToXContentObject {
    @Override
    public Iterator toXContentChunked(ToXContent.Params outerParams) {
        final Iterator diagnosisIterator;
        if (diagnosisList == null) {
            diagnosisIterator = Collections.emptyIterator();
        } else {
            diagnosisIterator = Iterators.flatMap(diagnosisList.iterator(), s -> s.toXContentChunked(outerParams));
        }
        return Iterators.concat(Iterators.single((ToXContent) (builder, params) -> {
            builder.startObject();
            builder.field("status", status.xContentValue());
            builder.field("symptom", symptom);
            if (details != null && HealthIndicatorDetails.EMPTY.equals(details) == false) {
                builder.field("details", details, params);
            }
            if (impacts != null && impacts.isEmpty() == false) {
                builder.field("impacts", impacts);
            }
            if (diagnosisList != null && diagnosisList.isEmpty() == false) {
                builder.startArray("diagnosis");
            }
            return builder;
        }), diagnosisIterator, Iterators.single((builder, params) -> {
            if (diagnosisList != null && diagnosisList.isEmpty() == false) {
                builder.endArray();
            }
            builder.endObject();
            return builder;
        }));
    }
}