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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.indices.breaker;

import org.elasticsearch.common.breaker.CircuitBreaker;
import org.elasticsearch.common.breaker.NoopCircuitBreaker;
import org.elasticsearch.common.settings.Settings;

/**
 * Class that returns a breaker that never breaks
 */
public class NoneCircuitBreakerService extends CircuitBreakerService {

    private final CircuitBreaker breaker = new NoopCircuitBreaker(CircuitBreaker.FIELDDATA);

    public NoneCircuitBreakerService() {
        super(Settings.EMPTY);
    }

    @Override
    public CircuitBreaker getBreaker(String name) {
        return breaker;
    }

    @Override
    public AllCircuitBreakerStats stats() {
        return new AllCircuitBreakerStats(new CircuitBreakerStats[] {stats(CircuitBreaker.FIELDDATA)});
    }

    @Override
    public CircuitBreakerStats stats(String name) {
        return new CircuitBreakerStats(CircuitBreaker.FIELDDATA, -1, -1, 0, 0);
    }

    @Override
    public void registerBreaker(BreakerSettings breakerSettings) {
        // ignore
    }
}