2 Library for the robot based system test tool of the OpenDaylight project.
3 Authors: Baohua Yang@IBM, Denghui Huang@IBM
7 from robot.libraries.BuiltIn import BuiltIn
11 class Topologynew(object):
13 Topology class provide topology database and provide many method to get property of topology.
15 node_boilerplate = {u'type': u'MD_SAL', u'id': u'openflow:%d'}
19 [{u'type': u'MD_SAL', u'id': u'openflow:1'}],
20 [{u'type': u'MD_SAL', u'id': u'openflow:1'},
21 {u'type': u'MD_SAL', u'id': u'openflow:2'},
22 {u'type': u'MD_SAL', u'id': u'openflow:3'}]
26 self.builtin = BuiltIn()
28 def get_nodes_from_topology(self, topo_level):
30 get nodes from topology database by topology tree level
32 if isinstance(topo_level, str) or isinstance(topo_level, unicode):
33 if topo_level.isdigit():
34 topo_level = int(topo_level)
37 return self.topo_nodes_db[topo_level]
40 elif isinstance(topo_level, int):
43 return self.topo_nodes_db[topo_level]
47 def get_nodes_from_tree_topo(self, topo, exceptroot="0"):
49 This function generates a dictionary that contains type and id of each node.
50 It follows tree level topology.
51 @parameter topo: either an interer (in this case, depth is set and fanout will be 2)
52 or a string in format of "(a,b)" (a and b are integers and they
53 stands for depth and fanout respectively)
54 @return array of dicitonary objects that contains info about each node
58 if isinstance(topo, str) or isinstance(topo, unicode):
59 t = tuple(int(v) for v in re.findall("[0-9]+", topo))
66 return None # topology consists of two parameters: depth and fanout
67 elif isinstance(topo, int):
70 return None # topo parameter is not given in a desired way
72 num_nodes = Common.num_of_nodes(depth, fanout)
74 for i in xrange(1, num_nodes + 1):
75 temp = {"id": "00:00:00:00:00:00:00:%s" % format(i, '02x'), "type": "OF"}
81 def get_ids_of_leaf_nodes(self, fanout, depth):
83 For a tree structure, it numerates leaf nodes
84 by following depth-first strategy
85 @parameter fanout: fanout of tree
86 @parameter depth: total depth of a tree
87 @return leafnodes: list of ids of leaf nodes
90 self._enumerate_nodes(0, 1, 1, fanout, depth - 1, leafnodes)
93 def _enumerate_nodes(self, currentdepth, nodeid, currentbranch, fanout, depth, leafnodes):
94 if currentdepth == depth:
95 leafnodes.append("00:00:00:00:00:00:00:%s" % format(nodeid, '02x'))
98 for i in xrange(1, fanout + 1):
99 nodes += self._enumerate_nodes(currentdepth + 1, nodeid + nodes, i, fanout, depth, leafnodes)
103 if __name__ == '__main__':
104 topologynew = Topologynew()
105 # print topologynew.get_nodes_from_tree_topo(2)
106 # print topologynew.get_nodes_from_tree_topo('2')
107 print topologynew.get_nodes_from_tree_topo('(2,3)')
108 # print topologynew.get_ids_of_leaf_nodes(2,2 )#, depth)