def update_topo(topo, test_vn, new_policy):
''' Purpose of this def is to update & return topology object as needed.
Example: Need to modify VN's policy list.. This change requires update
of every [affected] policy's VN list as well.
Reference info of how data is maintained:
vn_policy= {'vnet0': ['policy0', 'policy1'], 'vnet1': ['policy2', 'policy3']}
policy_vn= {'policy0': ['vnet0']}
'''
n_topo = copy.deepcopy(topo)
# i] remove test_vn from currently associated policies
topo_helper_obj = topology_helper(n_topo)
n_topo.policy_vn = topo_helper_obj.get_policy_vn()
for p in topo.vn_policy[test_vn]:
n_topo.policy_vn[p].remove(test_vn)
# ii] update vn_policy[test_vn] and policy_vn[new_policy] with new info
n_topo.vn_policy[test_vn] = [new_policy]
n_topo.policy_vn[new_policy].append(test_vn)
return n_topo
def update_topo(topo, test_vn, new_policy):
''' Purpose of this def is to update & return topology object as needed.
Example: Need to modify VN's policy list.. This change requires update
of every [affected] policy's VN list as well.
Reference info of how data is maintained:
vn_policy= {'vnet0': ['policy0', 'policy1'], 'vnet1': ['policy2', 'policy3']}
policy_vn= {'policy0': ['vnet0']}
'''
n_topo = copy.deepcopy(topo)
# i] remove test_vn from currently associated policies
topo_helper_obj = topology_helper(n_topo)
n_topo.policy_vn = topo_helper_obj.get_policy_vn()
for p in topo.vn_policy[test_vn]:
n_topo.policy_vn[p].remove(test_vn)
# ii] update vn_policy[test_vn] and policy_vn[new_policy] with new info
n_topo.vn_policy[test_vn] = [new_policy]
n_topo.policy_vn[new_policy].append(test_vn)
return n_topo