Package com.ferrumx.system.operating_system

Class Win32_OperatingSystem

java.lang.Object

com.ferrumx.system.operating_system.Win32_OperatingSystem

public class Win32_OperatingSystem
extends Object

This class queries the Win32_OperatingSystem class of WMI and fetches the current OS details.

The following properties are fetched: Caption, InstallDate, CSName, LastBootUpTime, LocalDateTime, Distributed, NumberOfUsers, Version, BootDevice, BuildNumber, BuildType, Manufacturer, OSArchitecture, MUILanguages, PortableOperatingSystem, Primary, RegisteredUser, SerialNumber, ServicePackMajorVersion, ServicePackMinorVersion, SystemDirectory, SystemDrive, WindowsDirectory

Author:

Egg-03

Method Summary

Modifier and Type	Method	Description
static Map<String,String>	getOSInfo(String OSName)	Fetches a OS properties for a particular OS
static List<String>	getOSList()	Fetches a list of OS Names installed in the System.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

getOSList

public static List<String> getOSList()
                              throws IOException,
IndexOutOfBoundsException,
ShellException,
InterruptedException

Fetches a list of OS Names installed in the System. In case of Multi-Boot systems, more than one OS names may appear

Returns:

a List of OS Names found in the system

Throws:

IOException - re-throws the exception thrown by CIM_ML.getPropertyValue(String, String) when there are I/O Errors during streaming of data from and to Powershell and other generated files

IndexOutOfBoundsException - re-throws the exception thrown by CIM_ML.getPropertyValue(String, String) when there is a parsing error of data fetched from Windows Powershell

ShellException - if any internal command used in the powershell throws errors

InterruptedException - if the thread waiting for the process to exit, gets interrupted. When catching this exception, you may re-throw it's interrupted status by using Thread.currentThread().interrupt();

While catching any of the Exceptions, you may return an empty List to avoid any NullPointerException that might get thrown because your variable might be expecting a string. However, this does not make you immune from the NullPointerExceptions that may be thrown in case of powershell output format changes in the future, causing the underlying parsing logic to fail.

getOSInfo

public static Map<String,String> getOSInfo(String OSName)
                                    throws IOException,
IndexOutOfBoundsException,
ShellException,
InterruptedException

Fetches a OS properties for a particular OS

Parameters:

OSName - the iterative List fetched from getOSList()

Returns:

a Map of OS properties and their values mentioned in the class description

Throws:

IOException - re-throws the exception thrown by CIM_ML.getPropertiesAndTheirValuesWhere(String, String, String, String) when there are I/O Errors during streaming of data from and to Powershell and other generated files

IndexOutOfBoundsException - re-throws the exception thrown by CIM_ML.getPropertiesAndTheirValuesWhere(String, String, String, String) when there is a parsing error of data fetched from Windows Powershell

ShellException - if any internal command used in the powershell throws errors

InterruptedException - if the thread waiting for the process to exit, gets interrupted. When catching this exception, you may re-throw it's interrupted status by using Thread.currentThread().interrupt();

While catching any of the Exceptions, you may return an empty Map to avoid any NullPointerException that might get thrown because your variable might be expecting a string. However, this does not make you immune from the NullPointerExceptions that may be thrown in case of powershell output format changes in the future, causing the underlying parsing logic to fail.