Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
FakeTime |
|
| 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 org.apache.giraph.time; | |
20 | ||
21 | import java.util.Date; | |
22 | import java.util.concurrent.atomic.AtomicLong; | |
23 | ||
24 | /** | |
25 | * Thread-safe implementation of Time for testing that can help get time based | |
26 | * ordering of events when desired. | |
27 | */ | |
28 | 0 | public class FakeTime implements Time { |
29 | /** Nanoseconds from the fake epoch */ | |
30 | 0 | private final AtomicLong nanosecondsSinceEpoch = new AtomicLong(); |
31 | ||
32 | @Override | |
33 | public long getMilliseconds() { | |
34 | 0 | return nanosecondsSinceEpoch.get() / NS_PER_MS; |
35 | } | |
36 | ||
37 | @Override | |
38 | public long getMicroseconds() { | |
39 | 0 | return nanosecondsSinceEpoch.get() / NS_PER_US; |
40 | } | |
41 | ||
42 | @Override | |
43 | public long getNanoseconds() { | |
44 | 0 | return nanosecondsSinceEpoch.get(); |
45 | } | |
46 | ||
47 | @Override | |
48 | public int getSeconds() { | |
49 | 0 | return (int) (nanosecondsSinceEpoch.get() / NS_PER_SECOND); |
50 | } | |
51 | ||
52 | @Override | |
53 | public Date getCurrentDate() { | |
54 | 0 | return new Date(getMilliseconds()); |
55 | } | |
56 | ||
57 | @Override | |
58 | public void sleep(long milliseconds) throws InterruptedException { | |
59 | 0 | nanosecondsSinceEpoch.getAndAdd(milliseconds * NS_PER_MS); |
60 | 0 | } |
61 | } |