def __init__(self):
"""
Defines dictionary attibutes sorted by room_id
For each room:
- new_message_events contains gevent.Event objects used by message
handlers to pause/restart execution and implement long polling
- messages stores the queue of the latest 50 messages
- counters contains iterators to pick up message identifiers
- connected_users is a dictionary holding the usernames of connected
users sorted by the time of their latest request
- new_connected_user_event contains gevent.Event objects used
by self.notify_users_list and self.get_users_list methods to
implement long polling
"""
self.handler = MessageHandlerFactory()
self.new_message_events = {}
self.messages = {}
self.counters = {}
self.connected_users = {}
self.new_connected_user_event = {}
rooms = Room.objects.all()
for room in rooms:
self.new_message_events[room.id] = Event()
self.messages[room.id] = deque(maxlen=50)
self.counters[room.id] = itertools.count(1)
self.connected_users[room.id] = {}
self.new_connected_user_event[room.id] = Event()
from utils.handlers import MessageHandlerFactory
from django.dispatch import Signal
chat_message_received = Signal(providing_args=[
"room_id",
"username",
"message",
"date",
])
handler = MessageHandlerFactory()
chat_message_received.connect(handler.handle_received_message)
