1 /*
2 * Copyright 2021 TiKV Project Authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *
16 */
17
18 package org.tikv.service.failsafe;
19
20 import java.io.IOException;
21
22 public class NoOpCircuitBreakerMetrics implements CircuitBreakerMetrics {
23 @Override
24 public void recordSuccess() {
25 // do nothing
26 }
27
28 @Override
29 public void recordFailure() {
30 // do nothing
31 }
32
33 @Override
34 public void addListener(MetricsListener metricsListener) {
35 // do nothing
36 }
37
38 @Override
39 public void close() throws IOException {
40 // do nothing
41 }
42 }