# Perform operations if desired power_state=:poweredOff
  if value == :poweredOff
    if ((vm.guest.toolsStatus != 'toolsNotInstalled') or (vm.guest.toolsStatus != 'toolsNotRunning')) and resource[:graceful_shutdown] == :true
      vm.ShutdownGuest
      # Since vm.ShutdownGuest doesn't return a task we need to poll the VM powerstate before returning.
      attempt = 5  # let's check 5 times (1 min 15 seconds) before we forcibly poweroff the VM.
      while power_state != "poweredOff" and attempt > 0
        sleep 15
        attempt -= 1
      end
      vm.PowerOffVM_Task.wait_for_completion if power_state != "poweredOff"
    else
      vm.PowerOffVM_Task.wait_for_completion
    end
    # Perform operations if desired power_state=:poweredOn
  elsif value == :poweredOn
    vm.PowerOnVM_Task.wait_for_completion
    # Perform operations if desired power_state=:suspend
  elsif value == :suspended
    if power_state == "poweredOn"
      vm.SuspendVM_Task.wait_for_completion
    else
      raise AsmException.new("ASM002", $CALLER_MODULE, nil, [vm.name])
    end
    # Perform operations if desired power_state=:reset
  elsif value == :reset
    if power_state !~ /poweredOff|suspended/i
      vm.ResetVM_Task.wait_for_completion
    else
      raise AsmException.new("ASM003", $CALLER_MODULE, nil, [vm.name])
    end
  end
rescue AsmException => ae
  ae.log_message
rescue Exception => e
  AsmException.new("ASM001", $CALLER_MODULE, e).log_message
end