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nmap/zenmap/radialnet/core/Graph.py

302 lines
11 KiB
Python

# vim: set fileencoding=utf-8 :
# ***********************IMPORTANT NMAP LICENSE TERMS************************
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class Node(object):
"""
Node class
"""
def __init__(self):
"""
Constructor method of Node class
@type : integer
@param : Node identifier
"""
self.__data = None
"""User-controlled data pointer"""
self.__edges = []
"""List of edges to other nodes"""
def get_data(self):
return self.__data
def set_data(self, data):
self.__data = data
def get_edge(self, dest):
"""
Return the edge connecting to dest, or None if none
"""
for edge in self.__edges:
if dest in edge.get_nodes():
return edge
return None
def get_edges(self):
"""
Return the list of edges
"""
return self.__edges
def add_edge(self, edge):
self.__edges.append(edge)
class Edge:
"""
"""
def __init__(self, nodes):
"""
"""
self.__weights = []
self.__nodes = nodes
self.__weights_mean = None
def get_nodes(self):
"""
"""
return self.__nodes
def get_weights(self):
"""
"""
return self.__weights
def set_weights(self, weights):
"""
"""
self.__weights = weights
self.__weights_mean = sum(self.__weights) / len(self.__weights)
def add_weight(self, weight):
"""
"""
self.__weights.append(weight)
self.__weights_mean = sum(self.__weights) / len(self.__weights)
def get_weights_mean(self):
"""
"""
return self.__weights_mean
class Graph:
"""
Network Graph class
"""
def __init__(self):
"""
Constructor method of Graph class
@type : list
@param : List of nodes
"""
self.__main_node = None
self.__nodes = []
self.__max_edge_mean_value = None
self.__min_edge_mean_value = None
def set_nodes(self, nodes):
"""
"""
self.__nodes = nodes
def get_nodes(self):
"""
"""
return self.__nodes
def get_number_of_nodes(self):
"""
Get the number of nodes in graph
@rtype: number
@return: The number of nodes in the graph
"""
return len(self.__nodes)
def set_main_node(self, node):
"""
Set the main node
@type : number
@param : The node
"""
self.__main_node = node
def get_main_node(self):
"""
Get the main node
@rtype: Node
@return: The main node
"""
return self.__main_node
def set_connection(self, a, b, weight=None):
"""
Set node connections
@type : list
@param : List of connections
"""
# if is a new connection make it
edge = a.get_edge(b)
if edge is None:
edge = Edge((a, b))
a.add_edge(edge)
b.add_edge(edge)
# then add new weight value
if weight != None:
edge.add_weight(weight)
mean_weight = edge.get_weights_mean()
if self.__min_edge_mean_value is None or mean_weight < self.__min_edge_mean_value:
self.__min_edge_mean_value = mean_weight
if self.__max_edge_mean_value is None or mean_weight > self.__max_edge_mean_value:
self.__max_edge_mean_value = mean_weight
def get_edges(self):
"""
An iterator that yields all edges
"""
for node in self.__nodes:
for edge in node.get_edges():
if edge.get_nodes()[0] == node:
yield edge
def get_node_connections(self, node):
"""
"""
connections = []
for edge in node.get_edges():
(a, b) = edge.get_nodes()
if a == node:
connections.append(b)
if b == node:
connections.append(a)
return connections
def get_max_edge_mean_weight(self):
"""
"""
return self.__max_edge_mean_value
def get_min_edge_mean_weight(self):
"""
"""
return self.__min_edge_mean_value