Clover icon

Coverage Report

  1. Project Clover database Wed Sep 18 2024 02:54:09 BST
  2. Package jalview.bin

File GetMemory.java

 

Coverage histogram

../../img/srcFileCovDistChart7.png
29% of files have more coverage

Code metrics

2
7
1
1
74
25
3
0.43
7
1
3

Classes

Class Line # Actions
GetMemory 40 7 3
0.770%
 

Contributing tests

This file is covered by 1 test. .

Source view

1    /*
2    * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3    * Copyright (C) $$Year-Rel$$ The Jalview Authors
4    *
5    * This file is part of Jalview.
6    *
7    * Jalview is free software: you can redistribute it and/or
8    * modify it under the terms of the GNU General Public License
9    * as published by the Free Software Foundation, either version 3
10    * of the License, or (at your option) any later version.
11    *
12    * Jalview is distributed in the hope that it will be useful, but
13    * WITHOUT ANY WARRANTY; without even the implied warranty
14    * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15    * PURPOSE. See the GNU General Public License for more details.
16    *
17    * You should have received a copy of the GNU General Public License
18    * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19    * The Jalview Authors are detailed in the 'AUTHORS' file.
20    */
21    package jalview.bin;
22   
23    import java.lang.management.ManagementFactory;
24    import java.lang.management.OperatingSystemMXBean;
25   
26    import jalview.util.ErrorLog;
27   
28    /**
29    * Isolated class to ascertain physical memory of the system using
30    * com.sun.management.OperatingSystemMXBean class's getTotalPhysicalMemorySize
31    * method. This class is present in OpenJDK 8,9,10,11,12,13. It is present but
32    * marked as deprecated in the early-access(30) release of OpenJDK 14. In case
33    * of an alternative/unsupported JRE being used or the class/method not being
34    * implemented in an exotic architecture JRE this call has been isolated into
35    * this separate class.
36    *
37    * @author bsoares
38    *
39    */
 
40    class GetMemory
41    {
42   
43    /**
44    * Wrapper for
45    * com.sun.management.OperatingSystemMXBean.getTotalPhysicalMemorySize()
46    *
47    * @return Result of
48    * com.sun.management.OperatingSystemMXBean.getTotalPhysicalMemorySize()
49    * or -1 if this class is not present in the JRE.
50    */
 
51  16 toggle protected static long getPhysicalMemory()
52    {
53  16 final OperatingSystemMXBean o = ManagementFactory
54    .getOperatingSystemMXBean();
55   
56  16 try
57    {
58  16 if (o instanceof com.sun.management.OperatingSystemMXBean)
59    {
60  16 final com.sun.management.OperatingSystemMXBean osb = (com.sun.management.OperatingSystemMXBean) o;
61  16 return osb.getTotalPhysicalMemorySize();
62    }
63    } catch (NoClassDefFoundError e)
64    {
65    // com.sun.management.OperatingSystemMXBean doesn't exist in this JVM
66  0 ErrorLog.errPrintln(
67    "No com.sun.management.OperatingSystemMXBean: cannot get total physical memory size");
68    }
69   
70    // We didn't get a com.sun.management.OperatingSystemMXBean.
71  0 return -1;
72    }
73   
74    }