todolist formating and command format in todolist finalized

Link.py

+from SystemEntity import SystemEntity
+from Node import Node
+import logging
+logger = logging.getLogger(__name__)
+
+class Link(SystemEntity):
+    def __init__(self,link):
+        SystemEntity.__init__(self)
+        #link = (1,2)
+        self.upNode = link[0]
+        self.downNode = link[1]
+        self.link = link
+        '''
+        contains string command and its corresponding method to be executed
+        useful to execute task from todolist
+        '''
+        self.commands = {"sendMessage": self.sendMessage,
+                         }
+
+        pass
+
+    def simulate(self,time):
+        logger.info("simulating .. ")
+
+
+if __name__ == '__main__':
+    x = {(1,2):"1*2",
+         (2,1):"2*1",
+         (3,2):"3*2"}
+
+    print(x.get((2,1,3)))
+

Links.dat

+1   2
+2   3
+3   4
+4   1

Network.py

 from SystemEntity import SystemEntity
+from Link import Link
+import csv
+from Node import Node
 import logging
 logger = logging.getLogger(__name__)
 
+
 class Network(SystemEntity):
     def __init__(self):
-        #TODO need better datastructure store these
-        self.nodes = []
-        self.links = []
+        SystemEntity.__init__(self)
+        self.nodes = {}#{1 : Node(1),2:Node(2)}
+        self.links = {} #{(1,2):Link(1-2),(2,1):Link(2,1),(3,2):Link(3*2)}      linkID = tuple(1,2)
 
     def setupNetwork(self):
-        # TODO add nodes
+        '''
+        Assumption : nodes are unique
+                    links are unique and bidirectional
+                    no errorneous nodes present in the file
+                    no erroneous link present in the file
+                    self loops are not there
+
+        Adds links and nodes to the network .It is a one time activity.
+
+        :return:
+        '''
+
+        with open('Nodes.dat', 'r') as f:
+            reader = csv.reader(f)
+            for row in reader:
+                node = row[0] # tuple of a link
+                self.nodes.update({node:Node(node)})
+                # print(self.nodes.get('1')) #keys are strings
+
+
+        with open('Links.dat', 'r') as f:
+            reader = csv.reader(f)
+            for row in reader:
+                link = tuple(row[0].split()) # tuple of a link
+                self.links.update({link:Link(link)})
+
+                # adding adjacent nodes list to each node
+                self.nodes.get(link[0]).adjacentNodes.append(link[1])
+                self.nodes.get(link[1]).adjacentNodes.append(link[0])
+                # print(self.links.get(('1', '2'))) #keys are strings
+
+
 
-        # TODO add links
         pass
 
+
+
+
+
     def simulate(self,time):
         logger.info("simulating .. ")
         # Note links should be simulated before nodes
         #  in order to receive the messge which is supposed to be received in this tick
-        for link in self.links:
+        for link in self.links.values():
             link.simulate(time)
 
-        for node in self.nodes:
+        for node in self.nodes.values():
             node.simulate(time)
 
         pass
+
+if __name__ == '__main__':
+    network = Network()
+    network.setupNetwork()
+
+    pass

Node.py

-import SystemEntity
+from SystemEntity import SystemEntity
 import logging
 logger = logging.getLogger(__name__)
 
-class Node(SystemEntity.SystemEntity):
+class Node(SystemEntity):
     def __init__(self,id):
+        SystemEntity.__init__(self)
         self.id = id
+        self.adjacentNodes = []
+        self.commands={"sendMessage":self.sendMessage,
+                       }
+
+    def sendMessage(self,params):
+        logger.info(str(params))
+        pass
 
     def simulate(self,time):
         logger.info("simulating .. ")
-        logger.info(" hello "+self.id)
-        pass
\ No newline at end of file
+
+        try:
+            tasks = self.todoList.pop(time)
+            for task in tasks:
+                command = self.commands.get(task[0])
+                command(task[1:])
+        except KeyError as ke:
+            # not task pending at this time
+            pass
+
+        pass
+
+if __name__ == '__main__':
+    # node = Node('1')
+    # cmd = node.commands.get("sendMessage")
+    # cmd("1 ","2 "," : Hello world")
+
+    from collections import defaultdict
+
+    # when accessing a key, if it has no value - create a list by default
+    d = defaultdict(list)
+    d["key"].append("a value")
+    d["key"].append("another value")
+    print(d)
+    x = d.pop("key2")
+    print(x)
+    print(d.get("key2"))
+
+
+
+

Nodes.dat

+1
+2
+3
+4

Starter.py

 from TimeSimulator import TimeSimulator
 from Network import Network
+from TestCases import populateTodolist
 
 
 import logging
@@ -13,5 +14,7 @@ def simulateThis(time):
 if __name__ == '__main__':
     metronome = TimeSimulator()
     network = Network()
+    network.setupNetwork()
+    populateTodolist(network)
     metronome.startTicking(network.simulate)
     pass
\ No newline at end of file

SystemEntity.py

+from collections import defaultdict
 import logging
 logger = logging.getLogger(__name__)
 
+
 class SystemEntity(object):
 
     def __init__(self):
-        self.todoList = []
+        self.todoList = defaultdict(list)
+        #{'key': [('sendMessage','1','2','hello2'), ('sendMessage','1','3','hello3')],'key2':["hello"]}
+        # key is timestamp at which to perfrom action
 
     def simulate(self,time):
+        '''
+        If there is a messge in queue process it
+        if there is a task with key of current_time_stamp perform it
+
+
+        :param time: current tick in system time
+        :return:
+        '''
         pass
 
+class x(SystemEntity):
+    def __init__(self,id):
+        self.id = id
+        SystemEntity.__init__(self)
+
+if __name__ == '__main__':
+    y = SystemEntity()
+    print(y.todoList)
+    m = x(1)
+    m.todoList["key"].append("a value")
+    m.todoList["key"].append("another value")
 
+    print(m.todoList)

TestCases.py

+from Network import Network
+import csv
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+def populateTodolist(net):
+    if not net:
+        network = Network()
+        network.setupNetwork()
+    else:
+        network = net
+    with open('todolist.dat', 'r') as f:
+        reader = csv.reader(f)
+        for row in reader:
+            instruction = row[0].split()  # tuple of a link
+            node = network.nodes.get(instruction[0])
+            node.todoList[instruction[1]].append(tuple(instruction[2:]))
+
+    for id,node in network.nodes.items():
+        logger.info(id +" : "+str(node.todoList))
+
+def simulateNetwork(net):
+    if not net:
+        network = Network()
+        network.setupNetwork()
+    else:
+        network = net
+
+    populateTodolist(network)
+
+    for time in range(15):
+        logger.info("TIme : "+str(time))
+        network.simulate(str(time))
+
+
+if __name__ == '__main__':
+    logging.basicConfig(filename='TestCases.log', level=logging.INFO)
+    # populateTodolist()
+    simulateNetwork(None)
+
+    pass

TimeSimulator.py

@@ -15,7 +15,7 @@ class TimeSimulator(object):
             for i in range(10):
                 self._systemTime = self._systemTime + 1
                 logger.info(self)
-                callback(self._systemTime)
+                callback(str(self._systemTime))
 
     instance = None
     def __new__(cls): # __new__ always a classmethod

todolist.dat

+1 10 sendMessage 1 2 hello2
+1 9 sendMessage 1 4 hello2
+1 10 sendMessage 1 2 hello2
+1 8 sendMessage 1 2 hello2
+2 11 sendMessage 1 2 hello2
\ No newline at end of file