class Broker(object):
def __init__(self):
self.messageQueue = Queue()
self.netReader = IO_Network(BROKER_PORT, 'localhost')
self.netReader.bind()
self.netWriter = IO_Network(DEFAULT_PORT, 'localhost')
self.subscribers = []
def listen(self):
while True:
msg = self.netReader.read(None)
self.messageQueue.put(msg)
def send(self):
while True:
msg = self.messageQueue.get()
if msg.type == 'subscription':
print 'received subscription from: ' + msg.senderID
self.subscribers.append(msg.body)
elif msg.type == 'message':
for subscriber in self.subscribers:
if subscriber.id == msg.receiverID:
self.netWriter.port = subscriber.port
self.netWriter.host = subscriber.ip
print 'message for ' + str(subscriber)
self.netWriter.write(msg.receiverID, msg)
break
def main(self):
print 'here'
thread.start_new_thread(self.send, ())
self.listen()
class Sender(object):
def __init__(self):
self.netWriter = IO_Network(BROKER_PORT, "localhost")
def send(self):
myself = Subscriber()
myself.port = DEFAULT_PORT # sender port
myself.ip = 'localhost'
myself.id = 'app1'
message = Message()
message.type = 'subscription'
message.senderID = 'app1'
message.receiverID = 'broker'
message.body = myself
self.netWriter.write('broker', message)
message.type = 'message'
tree = ET.parse('country_data.xml')
root = tree.getroot()
recipient = 'app2'
message.body = open('country_data.xml').read()
message.receiverID = recipient
self.netWriter.write('app2', message)
class Receiver(object):
def __init__(self):
self.netReader = IO_Network(DEFAULT_PORT, 'localhost')
self.netReader.bind()
self.netWriter = IO_Network(BROKER_PORT, 'localhost')
self.fileWriter = IO_File()
print 'Socket bind complete'
def listen(self):
while True:
msg = self.netReader.read(None)
print '\nReceived message:{0}'.format(msg.body)
self.fileWriter.write('received.xml', msg.body)
def send(self):
myself = Subscriber()
myself.port = DEFAULT_PORT
myself.ip = 'localhost'
myself.id = 'app2'
message = Message()
message.type = 'subscription'
message.senderID = 'app2'
message.receiverID = 'broker'
message.body = myself
self.netWriter.write('broker', message)
class Broker(object):
def __init__(self):
self.messageQueue = Queue()
self.netReader = IO_Network(BROKER_PORT, 'localhost')
self.netReader.bind()
self.netWriter = IO_Network(DEFAULT_PORT, 'localhost')
self.subscribers = []
def listen(self):
while True:
msg = self.netReader.read(None)
self.messageQueue.put(msg)
def send(self):
while True:
msg = self.messageQueue.get()
if msg.type == 'subscription':
print 'received subscription from: ' + msg.senderID
self.subscribers.append(msg.body)
elif msg.type == 'message':
for subscriber in self.subscribers:
if subscriber.id == msg.receiverID:
self.netWriter.port = subscriber.port
self.netWriter.host = subscriber.ip
print 'message for ' + str(subscriber)
self.netWriter.write(msg.receiverID, msg)
break
def main(self):
print 'here'
thread.start_new_thread(self.send, ())
self.listen()
class Receiver(object):
def __init__(self):
self.netReader = IO_Network(DEFAULT_PORT, 'localhost')
self.netReader.bind()
self.netWriter = IO_Network(BROKER_PORT, 'localhost')
print 'Socket bind complete'
def listen(self):
while True:
msg = self.netReader.read(None)
if msg.body == 'close':
self.netWriter.close_socket()
self.netReader.close_socket()
print '\nReceived message:{0}'.format(msg.body)
def send(self):
myself = Subscriber()
myself.port = DEFAULT_PORT
myself.ip = 'localhost'
myself.id = 'sender'
message = Message()
message.type = 'subscription'
message.senderID = 'sender'
message.receiverID = 'receiver'
message.body = myself
self.netWriter.write('broker', message)
class Sender(object):
def __init__(self):
self.netWriter = IO_Network(BROKER_PORT, "localhost")
def send(self):
myself = Subscriber()
myself.port = DEFAULT_PORT # sender port
myself.ip = 'localhost'
myself.id = 'sender'
message = Message()
message.type = 'subscription'
message.senderID = 'sender'
message.receiverID = 'receiver'
message.body = myself
self.netWriter.write('broker', message)
message.type = 'message'
while True:
text = raw_input("Enter message to send: ")
if text == 'close':
self.netWriter.close_socket()
break
recipient = raw_input('Enter receiver: ')
message.body = text
message.receiverID = recipient
self.netWriter.write('receiver', message)
return
def __init__(self):
self.netWriter = IO_Network(BROKER_PORT, "localhost")
def __init__(self):
self.messageQueue = Queue()
self.netReader = IO_Network(BROKER_PORT, 'localhost')
self.netReader.bind()
self.netWriter = IO_Network(DEFAULT_PORT, 'localhost')
self.subscribers = []
def __init__(self):
self.netReader = IO_Network(DEFAULT_PORT, 'localhost')
self.netReader.bind()
self.netWriter = IO_Network(BROKER_PORT, 'localhost')
print 'Socket bind complete'
def __init__(self):
self.netReader = IO_Network(DEFAULT_PORT, 'localhost')
self.netReader.bind()
self.netWriter = IO_Network(BROKER_PORT, 'localhost')
self.fileWriter = IO_File()
print 'Socket bind complete'
def __init__(self):
self.messageQueue = Queue()
self.netReader = IO_Network(BROKER_PORT, 'localhost')
self.netReader.bind()
self.netWriter = IO_Network(DEFAULT_PORT, 'localhost')
self.subscribers = []