def getVsSystemType(vs):
"""
This function gets the list of system types for the virtual system and
selects one based on the libvirt capabilities. It will select the
first type in the list that is present on the system.
@type node: DOM node
@param node: Virtual System node
@rtype: String
@return: Platform type for Virtual System
"""
virtTypes = OvfLibvirt.getOvfSystemType(vs)
for virtType in virtTypes:
# check if this virtType is available
if virtTypeIsAvailable(virtType):
return virtType
return None
