def getRootMo(self):
"""Get the Root Mo for this configuration request
Returns:
None or cobra.mit.mo.Mo: The root Mo for the config request
"""
def addDescendantMo(rMo, descendantMo):
rDn = rMo.dn
descendantDn = descendantMo.dn
parentDn = descendantDn.getParent()
while rDn != parentDn:
# This is a descendant. make the parent mo
parentMo = ConfigRequest.__getMoForDnInFlatTree(
parentDn, flatTreeDict)
parentMo._attachChild(descendantMo)
descendantMo = parentMo
parentDn = parentDn.getParent()
rMo._attachChild(descendantMo)
if self.__rootMo:
return self.__rootMo
if not self.__configMos:
return None
# This dict stores all entries added to the tree. Fast lookups
flatTreeDict = {}
dns = list(self.__configMos.keys())
rootDn = Dn.findCommonParent(dns)
configMos = dict(self.__configMos)
# Check if the the root is in the list of MOs to be configure.
# If it is there, remove it, else create a new MO, but in any case
# add the MO to the flat tree dictionary for further lookups.
rootMo = configMos.pop(rootDn) if rootDn in configMos else None
rootMo = ConfigRequest.__getMoForDnInFlatTree(rootDn, flatTreeDict,
rootMo)
# Add the rest of the mos to the root.
childMos = sorted(list(configMos.values()), key=lambda x: x.dn)
for childMo in childMos:
addDescendantMo(rootMo, childMo)
self.__rootMo = rootMo
return rootMo
