/*
 * 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", the "GNU Affero General Public License v3.0 only", 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", the "GNU Affero General Public
 * License v3.0 only", or the "Server Side Public License, v 1".
 */
package org.elasticsearch.cluster.coordination;

import org.elasticsearch.action.ActionListener;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.service.ClusterApplier;
import org.elasticsearch.cluster.service.ClusterApplierRecordingService;

import java.util.Map;
import java.util.function.Supplier;

public class NoOpClusterApplier implements ClusterApplier {
    @Override
    public void setInitialState(ClusterState initialState) {

    }

    @Override
    public void onNewClusterState(String source, Supplier<ClusterState> clusterStateSupplier, ActionListener<Void> listener) {
        listener.onResponse(null);
    }

    @Override
    public ClusterApplierRecordingService.Stats getStats() {
        return new ClusterApplierRecordingService.Stats(Map.of());
    }
}