60 lines
1.9 KiB
Python
60 lines
1.9 KiB
Python
from copy import deepcopy
|
|
from datetime import datetime
|
|
from functools import reduce
|
|
|
|
add = lambda a, b: a + b
|
|
|
|
|
|
'''
|
|
Function that maintains the state of users in a chat room
|
|
'''
|
|
def update_users(users, actions, action_types=['send','enter','exit']):
|
|
users = deepcopy(users)
|
|
for action_type in action_types:
|
|
if action_type in actions['types']:
|
|
for msg in actions['messages']:
|
|
if msg['action'] == 'send' and action_type == 'send':
|
|
continue
|
|
elif msg['action'] == 'enter' and action_type == 'enter':
|
|
for user in msg['sender']:
|
|
users.append(user) # register_entered
|
|
elif msg['action'] == 'exit' and action_type == 'exit':
|
|
for user in msg['sender']:
|
|
users.remove(user) # remove_exited
|
|
return users
|
|
|
|
|
|
'''
|
|
State Update used to counts sent messages
|
|
'''
|
|
def count_messages(_g, step, sL, s, actions, kafkaConfig):
|
|
return 'total_msg_count', s['total_msg_count'] + reduce(add, actions['msg_counts'])
|
|
|
|
|
|
'''
|
|
State Update used to create to log message events
|
|
'''
|
|
def send_message(state):
|
|
return lambda _g, step, sL, s, actions, kafkaConfig: (
|
|
state,
|
|
{
|
|
'users': update_users(s[state]['users'], actions),
|
|
'messages': actions['messages'],
|
|
'msg_counts': reduce(add, actions['msg_counts']),
|
|
'send_times': reduce(add, actions['send_times'])
|
|
}
|
|
)
|
|
|
|
|
|
'''
|
|
State Update used to sum the time taken for the Kafka Producer to send messages between users
|
|
'''
|
|
def add_send_time(_g, step, sL, s, actions, kafkaConfig):
|
|
return 'total_send_time', s['total_send_time'] + reduce(add, actions['send_times'])
|
|
|
|
|
|
'''
|
|
State Update used to record the event record creation time
|
|
'''
|
|
def current_time(state):
|
|
return lambda _g, step, sL, s, actions, kafkaConfig: (state, datetime.now()) |