class TopologyServer(InternalInterface):
'''
classdocs
'''
def __init__(self, britefileName, port=8887):
'''
Constructor
'''
self.startListeners = []
self.eventListeners = []
self.serverPort = port;
self.topologyManager = TopologyManager()
self.topologyManager.importTopologyFromBrite(britefileName)
self.topologyManager.setEventsListener(self)
def startListen(self):
self.serverSocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.serverSocket.bind(('localhost', self.serverPort))
self.serverSocket.listen(5)
print 'TopplogyServer listening on port', self.serverPort, '...'
while True:
clientsocket, address = self.serverSocket.accept()
print 'Connection received from', address
handler = ClientHandler(self, clientsocket, address)
handler.start()
def getTopology(self):
topology = Topology()
topology.routers = self.topologyManager.routers
topology.hosts = self.topologyManager.all_hosts
topology.links = self.topologyManager.links
return topology
def getMulticastGroup(self, complete=False):
group = Group()
group.source = self.topologyManager.multicast_source.id
if (complete):
group.hosts = self.topologyManager.multicast_group
else:
group.hosts = self.topologyManager.active_hosts
return group
def addEventListeners(self, handler):
if not self.topologyManager.is_running:
self.topologyManager.startEvents()
if handler not in self.eventListeners:
self.eventListeners.append(handler)
print 'Client', handler.address, 'is listening for events.'
else:
print 'Client', handler.address, 'has been already listening for events.'
def addStartListeners(self, handler):
if handler not in self.startListeners:
self.startListeners.append(handler)
print 'Client', handler.address, 'is waiting start.'
else:
print 'Client', handler.address, 'has been already waiting start.'
def removeHandler(self, handler):
if handler in self.startListeners:
self.startListeners.remove(handler)
if handler in self.eventListeners:
self.eventListeners.remove(handler)
def notifyStart(self, request):
for toNotify in self.startListeners:
notifier = AsynchronousNotifier(toNotify, request)
notifier.doNotify()
def notifyEvent(self, event):
for toNotify in self.eventListeners:
notifier = AsynchronousNotifier(toNotify, event)
notifier.doNotify()
