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# Copyright (C) 2018 Bloomberg LP 

# 

# Licensed under the Apache License, Version 2.0 (the "License"); 

# you may not use this file except in compliance with the License. 

# You may obtain a copy of the License at 

# 

# <http://www.apache.org/licenses/LICENSE-2.0> 

# 

# Unless required by applicable law or agreed to in writing, software 

# distributed under the License is distributed on an "AS IS" BASIS, 

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 

# See the License for the specific language governing permissions and 

# limitations under the License. 

 

 

import asyncio 

import logging 

 

 

class Bot: 

"""Creates a local BotSession.""" 

 

def __init__(self, bot_session): 

self.__logger = logging.getLogger(__name__) 

 

self.__bot_session = bot_session 

 

self.__loop = None 

 

def session(self): 

"""Will create a session and periodically call the server.""" 

 

self.__loop = asyncio.get_event_loop() 

 

try: 

task = asyncio.ensure_future(self.__bot_session.run()) 

self.__loop.run_until_complete(task) 

except KeyboardInterrupt: 

pass 

 

self.__kill_everyone() 

self.__logger.info("Bot shutdown.") 

 

def __kill_everyone(self): 

"""Cancels and waits for them to stop.""" 

self.__logger.info("Cancelling remaining tasks...") 

for task in asyncio.Task.all_tasks(): 

task.cancel() 

self.__loop.run_until_complete(task)