| 1 | /* __copyright_begin__ |
| 2 | Copyright 2011 Dan Hagberg |
| 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 | __copyright_end__ */ |
| 16 | package net.digitaltsunami.tmeter; |
| 17 | |
| 18 | import net.digitaltsunami.tmeter.record.TimeRecorder; |
| 19 | |
| 20 | /** |
| 21 | * Timer shell used as return value when time recording is turned off. |
| 22 | * <p> |
| 23 | * Will return 0 or default values for all timing methods. |
| 24 | */ |
| 25 | public class TimerShell extends Timer { |
| 26 | |
| 27 | /** |
| 28 | * |
| 29 | */ |
| 30 | private static final long serialVersionUID = 1L; |
| 31 | |
| 32 | public TimerShell(String taskName) { |
| 33 | super(taskName, false, null, null); |
| 34 | } |
| 35 | |
| 36 | @Override |
| 37 | public void start() { |
| 38 | if (! isStopped() ) { |
| 39 | updateStatus(TimerStatus.RUNNING); |
| 40 | } |
| 41 | } |
| 42 | |
| 43 | @Override |
| 44 | public long stop() { |
| 45 | updateStatus(TimerStatus.STOPPED); |
| 46 | return 0; |
| 47 | } |
| 48 | |
| 49 | @Override |
| 50 | public void setTimeRecorder(TimeRecorder timeRecorder) { |
| 51 | } |
| 52 | |
| 53 | @Override |
| 54 | public long getStartTimeMillis() { |
| 55 | return 0L; |
| 56 | } |
| 57 | |
| 58 | @Override |
| 59 | public long getStartTimeNanos() { |
| 60 | return 0L; |
| 61 | } |
| 62 | |
| 63 | @Override |
| 64 | public long getStopTimeNanos() { |
| 65 | return 0L; |
| 66 | } |
| 67 | |
| 68 | @Override |
| 69 | public int getConcurrent() { |
| 70 | return 0; |
| 71 | } |
| 72 | |
| 73 | @Override |
| 74 | public void setConcurrent(int concurrent) { |
| 75 | } |
| 76 | |
| 77 | @Override |
| 78 | public String toString() { |
| 79 | return "TimerShell"; |
| 80 | } |
| 81 | |
| 82 | @Override |
| 83 | public String toCsv() { |
| 84 | return "TimerShell"; |
| 85 | } |
| 86 | |
| 87 | @Override |
| 88 | public long getElapsedNanos(boolean snapshotTime) { |
| 89 | if (getStatus() == TimerStatus.RUNNING) { |
| 90 | return snapshotTime ? 0 : -1; |
| 91 | } |
| 92 | return 0L; |
| 93 | } |
| 94 | |
| 95 | @Override |
| 96 | public long getElapsedNanos() { |
| 97 | return getElapsedNanos(false); |
| 98 | } |
| 99 | |
| 100 | @Override |
| 101 | public long getElapsedMillis() { |
| 102 | return getStatus() == TimerStatus.RUNNING ? -1 : 0; |
| 103 | } |
| 104 | |
| 105 | @Override |
| 106 | public TimerStatus getStatus() { |
| 107 | return super.getStatus(); |
| 108 | } |
| 109 | } |