Autopsy  4.19.3
Graphical digital forensics platform for The Sleuth Kit and other tools.
TimingMetric.java
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1 /*
2  * Autopsy Forensic Browser
3  *
4  * Copyright 2018 Basis Technology Corp.
5  * Contact: carrier <at> sleuthkit <dot> org
6  *
7  * Licensed under the Apache License, Version 2.0 (the "License");
8  * you may not use this file except in compliance with the License.
9  * You may obtain a copy of the License at
10  *
11  * http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing, software
14  * distributed under the License is distributed on an "AS IS" BASIS,
15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16  * See the License for the specific language governing permissions and
17  * limitations under the License.
18  */
19 package org.sleuthkit.autopsy.healthmonitor;
20 
24 public class TimingMetric {
25 
26  private final String name;
27  private final long startingTimestamp;
28  private Double duration;
29 
30  TimingMetric(String name) {
31  this.name = name;
32  this.startingTimestamp = System.nanoTime();
33  this.duration = null;
34  }
35 
39  void stopTiming() {
40  long endingTimestamp = System.nanoTime();
41  this.duration = (double)(endingTimestamp - startingTimestamp) / 1000000;
42  }
43 
48  String getName() {
49  return name;
50  }
51 
58  double getDuration() throws HealthMonitorException {
59  if (duration != null) {
60  return duration;
61  } else {
62  throw new HealthMonitorException("getDuration() called before stopTiming()");
63  }
64  }
65 
73  void normalize(long count) throws HealthMonitorException {
74  if (duration != null) {
75  if(count < 0) {
76  throw new HealthMonitorException("normalize() called with negative count (" + count + ")");
77  } else if(count > 1) {
78  duration = duration / count;
79  } // If count is 0 or 1, do nothing
80  } else {
81  throw new HealthMonitorException("normalize() called before stopTiming()");
82  }
83  }
84 }

Copyright © 2012-2022 Basis Technology. Generated on: Thu Dec 8 2022
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