org.elasticsearch.cluster.ClusterInfoService 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 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.cluster;
import java.util.function.Consumer;
/**
* Interface for a class used to gather information about a cluster periodically.
*/
@FunctionalInterface
public interface ClusterInfoService {
/**
* @return the latest cluster information
*/
ClusterInfo getClusterInfo();
/**
* Add a listener for new cluster information
*/
default void addListener(Consumer clusterInfoConsumer) {
throw new UnsupportedOperationException();
}
}