Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
NoOpMeter |
|
| 1.0;1 |
1 | /* | |
2 | * Licensed to the Apache Software Foundation (ASF) under one | |
3 | * or more contributor license agreements. See the NOTICE file | |
4 | * distributed with this work for additional information | |
5 | * regarding copyright ownership. The ASF licenses this file | |
6 | * to you under the Apache License, Version 2.0 (the | |
7 | * "License"); you may not use this file except in compliance | |
8 | * with the License. You may obtain a copy of the License at | |
9 | * | |
10 | * http://www.apache.org/licenses/LICENSE-2.0 | |
11 | * | |
12 | * Unless required by applicable law or agreed to in writing, software | |
13 | * distributed under the License is distributed on an "AS IS" BASIS, | |
14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
15 | * See the License for the specific language governing permissions and | |
16 | * limitations under the License. | |
17 | */ | |
18 | ||
19 | package com.yammer.metrics.core; | |
20 | ||
21 | import java.util.concurrent.TimeUnit; | |
22 | ||
23 | /** | |
24 | * An empty Metrics' Meter implementation that does nothing. | |
25 | */ | |
26 | public class NoOpMeter extends Meter { | |
27 | /** singleton instance for everyone to use */ | |
28 | 0 | public static final NoOpMeter INSTANCE = new NoOpMeter(); |
29 | ||
30 | /** do not instantiate */ | |
31 | private NoOpMeter() { | |
32 | 0 | super(new NoOpExecutorService(), "", TimeUnit.SECONDS, |
33 | 0 | Clock.defaultClock()); |
34 | 0 | } |
35 | ||
36 | @Override | |
37 | 0 | void tick() { } |
38 | ||
39 | @Override | |
40 | 0 | public void mark() { } |
41 | ||
42 | @Override | |
43 | 0 | public void mark(long n) { } |
44 | ||
45 | @Override | |
46 | 0 | public long count() { return 0; } |
47 | ||
48 | @Override | |
49 | 0 | public double fifteenMinuteRate() { return 0.0; } |
50 | ||
51 | @Override | |
52 | 0 | public double fiveMinuteRate() { return 0.0; } |
53 | ||
54 | @Override | |
55 | 0 | public double meanRate() { return 0.0; } |
56 | ||
57 | @Override | |
58 | 0 | public double oneMinuteRate() { return 0.0; } |
59 | ||
60 | @Override | |
61 | 0 | public void stop() { } |
62 | ||
63 | @Override | |
64 | public <T> void processWith(MetricProcessor<T> processor, MetricName name, | |
65 | T context) | |
66 | 0 | throws Exception { } |
67 | } |