Package oshi.software.os.windows

Class WindowsOperatingSystem

java.lang.Object
oshi.software.common.AbstractOperatingSystem
oshi.software.os.windows.WindowsOperatingSystem
All Implemented Interfaces:
OperatingSystem
@ThreadSafe public class WindowsOperatingSystem extends AbstractOperatingSystem
Microsoft Windows, commonly referred to as Windows, is a group of several proprietary graphical operating system families, all of which are developed and marketed by Microsoft.

  • Constructor Details

    • WindowsOperatingSystem

      public WindowsOperatingSystem()

  • Method Details

    • queryManufacturer

      public String queryManufacturer()
      Specified by:
      queryManufacturer in class AbstractOperatingSystem

    • queryFamilyVersionInfo

      public Pair<String,OperatingSystem.OSVersionInfo> queryFamilyVersionInfo()
      Specified by:
      queryFamilyVersionInfo in class AbstractOperatingSystem

    • queryBitness

      protected int queryBitness(int jvmBitness)
      Description copied from class: AbstractOperatingSystem
      Backup OS-specific query to determine bitness if previous checks fail
      Specified by:
      queryBitness in class AbstractOperatingSystem
      Parameters:
      jvmBitness - The bitness of the JVM
      Returns:
      The operating system bitness

    • isElevated

      public boolean isElevated()
      Description copied from interface: OperatingSystem
      Determine whether the current process has elevated permissions such as sudo / Administrator
      Returns:
      True if this process has elevated permissions

    • getFileSystem

      public FileSystem getFileSystem()
      Description copied from interface: OperatingSystem
      Instantiates a FileSystem object.
      Returns:
      A FileSystem object.

    • getInternetProtocolStats

      public InternetProtocolStats getInternetProtocolStats()
      Description copied from interface: OperatingSystem
      Instantiates a InternetProtocolStats object.
      Returns:
      a InternetProtocolStats object.

    • getSessions

      public List<OSSession> getSessions()
      Description copied from interface: OperatingSystem
      Gets currently logged in users.

      On macOS, Linux, and Unix systems, the default implementation uses native code (see man getutxent) that is not thread safe. OSHI's use of this code is synchronized and may be used in a multi-threaded environment without introducing any additional conflicts. Users should note, however, that other operating system code may access the same native code.

      The Who.queryWho() method produces similar output parsing the output of the Posix-standard who command, and may internally employ reentrant code on some platforms. Users may opt to use this command-line variant by default using the oshi.os.unix.whoCommand configuration property.

      Returns:
      A list of OSSession objects representing logged-in users

    • getProcesses

      public List<OSProcess> getProcesses(Collection<Integer> pids)
      Description copied from interface: OperatingSystem
      Gets information on a Collection of currently running processes. This has potentially improved performance vs. iterating individual processes.
      Parameters:
      pids - A collection of process IDs
      Returns:
      A list of OSProcess objects for the specified process ids if it is running

    • queryAllProcesses

      public List<OSProcess> queryAllProcesses()
      Specified by:
      queryAllProcesses in class AbstractOperatingSystem

    • queryChildProcesses

      public List<OSProcess> queryChildProcesses(int parentPid)
      Specified by:
      queryChildProcesses in class AbstractOperatingSystem

    • queryDescendantProcesses

      public List<OSProcess> queryDescendantProcesses(int parentPid)
      Specified by:
      queryDescendantProcesses in class AbstractOperatingSystem

    • getProcess

      public OSProcess getProcess(int pid)
      Description copied from interface: OperatingSystem
      Gets information on a currently running process
      Parameters:
      pid - A process ID
      Returns:
      An OSProcess object for the specified process id if it is running; null otherwise

    • getProcessId

      public int getProcessId()
      Description copied from interface: OperatingSystem
      Gets the current process ID (PID).
      Returns:
      the Process ID of the current process

    • getProcessCount

      public int getProcessCount()
      Description copied from interface: OperatingSystem
      Get the number of processes currently running
      Returns:
      The number of processes running

    • getThreadId

      public int getThreadId()
      Description copied from interface: OperatingSystem
      Makes a best effort to get the current thread ID (TID). May not be useful in a multithreaded environment. The thread ID returned may have been short lived and no longer exist.

      Thread IDs on macOS are not correlated with any other Operating System output.

      Returns:
      the Thread ID of the current thread if known, 0 otherwise.

    • getCurrentThread

      public OSThread getCurrentThread()
      Description copied from interface: OperatingSystem
      Makes a best effort to get the current thread. May not be useful in a multithreaded environment. The thread returned may have been short lived and no longer exist.

      On macOS, returns the oldest thread in the calling process.

      Returns:
      the current thread if known; an invalid thread otherwise.

    • getThreadCount

      public int getThreadCount()
      Description copied from interface: OperatingSystem
      Get the number of threads currently running
      Returns:
      The number of threads running

    • getSystemUptime

      public long getSystemUptime()
      Description copied from interface: OperatingSystem
      Get the System up time (time since boot).
      Returns:
      Number of seconds since boot.

    • getSystemBootTime

      public long getSystemBootTime()
      Description copied from interface: OperatingSystem
      Get Unix time of boot.
      Returns:
      The approximate time at which the system booted, in seconds since the Unix epoch.

    • getNetworkParams

      public NetworkParams getNetworkParams()
      Description copied from interface: OperatingSystem
      Instantiates a NetworkParams object.
      Returns:
      A NetworkParams object.

    • getServices

      public List<OSService> getServices()
      Description copied from interface: OperatingSystem
      Gets the all services on the system. The definition of what is a service is platform-dependent.
      Returns:
      An array of OSService objects

    • getDesktopWindows

      public List<OSDesktopWindow> getDesktopWindows(boolean visibleOnly)
      Description copied from interface: OperatingSystem
      Gets windows on the operating system's GUI desktop.

      On Unix-like systems, reports X11 windows only, which may be limited to the current display and will not report windows used by other window managers.

      While not a guarantee, a best effort is made to return windows in foreground-to-background order. This ordering may be used along with OSDesktopWindow.getOrder() to (probably) determine the frontmost window.

      Parameters:
      visibleOnly - Whether to restrict the list to only windows visible to the user.

      This is a best effort attempt at a reasonable definition of visibility. Visible windows may be completely transparent.

      Returns:
      A list of OSDesktopWindow objects representing the desktop windows.

    • getInstalledApplications

      public List<ApplicationInfo> getInstalledApplications()
      Description copied from interface: OperatingSystem
      Retrieves a list of installed applications on the system.

      This method is implemented per OS. If the OS does not support this feature, it returns an empty list.

      Returns:
      A list of installed applications or an empty list if unsupported.