Added communicators

This commit is contained in:
Füleki Fábián 2020-05-08 21:48:32 +02:00
parent 8668550a3f
commit 77e915c63e
3 changed files with 63 additions and 57 deletions

55
app.py
View File

@ -45,23 +45,7 @@ class Scheduler:
logging.debug('Update redis consumers ip list from first answers: Done')
def request_sync(self, consumer_list_redis):
temp_dict = {}
for uuid, info in consumer_list_redis.items():
ip = info['ip']
try:
# request synchronization
response = requests.post(f"http://{ip}/sync", json={'uuid': os.environ['LOCAL_UUID']}, timeout=5)
except (requests.exceptions.ConnectionError, requests.exceptions.Timeout) as e:
logging.error(f"Error while syncing to {ip}: {str(e)}")
continue
if response.status_code == 200:
temp_dict[response.json()['uuid']] = {'ip': ip}
# update the dictionary of the currently available consumers
consumer_list_redis.update(temp_dict)
self.r.set('consumer_list', json.dumps(consumer_list_redis).encode('utf-8'))
logging.debug('Update redis consumer ip list from answers: Done')
def test_ip_change(self, host_name):
@ -91,16 +75,7 @@ class Scheduler:
else:
continue
try:
response = requests.post(
f"http://{ip}/ip",
json={'uuid': os.environ['LOCAL_UUID'], 'ip': current_ip},
timeout=5
)
logging.debug(f"Pushed update to {key.decode('utf-8')} at {ip}. Response: {response.status_code}")
except (requests.exceptions.ConnectionError, requests.exceptions.Timeout) as e:
logging.warning(f"Could not push update to {key.decode('utf-8')}: {str(e)}")
continue
else:
logging.debug(f'IP unchanged: {current_ip}')
@ -108,13 +83,6 @@ class Scheduler:
time.sleep(os.environ.get("RUN_INTERVAL", 30))
def get_ip_list(self):
# set initial consumer addresses
ip_list = os.environ['INITIAL_SERVERS'].split(',')
logging.debug('Get consumer list from environ at first: Done')
return ip_list
def main():
# set logging preferences
logging.basicConfig(filename='', level=logging.DEBUG)
@ -122,27 +90,6 @@ def main():
redis_storage = RedisSuperStorage(os.environ.get('REDIS_URL', "redis://localhost:6379/0"))
scheduler = Scheduler()
# get the dictionary of the currently available consumers
consumer_list_redis = redis_storage.get_consumer_dictionary()
logging.debug('Get consumer list from redis at first: Done')
ip_list = redis.get_ip_list()
scheduler.request_list(ip_list)
scheduler.request_first_sync(ip_list, consumer_list_redis)
while True:
logging.debug('Infinite Cycle start : Done')
# get the dictionary of the currently available consumers
consumer_list_redis = redis.get_consumer_dictionary()
logging.debug('Get consumer list from redis: Done')
temp_dict = {}
scheduler.request_sync(consumer_list_redis)
# Test ip change stuff
scheduler.test_ip_change(host_name)
if __name__ == "__main__":

59
communicators.py Normal file
View File

@ -0,0 +1,59 @@
#!/usr/bin/env python3
import os
import logging
import requests
from redis_super_storage import RedisSuperStorage
class ProducerCommunicator:
def __init__(self, redis_store: RedisSuperStorage):
self._redis_store = redis_store
self._session = requests.Session()
def push_ip_update(self, newip: str):
for key, ip in self._redis_store.get_producer_list().items():
try:
response = requests.post(
f"http://{ip}/ip",
json={'uuid': os.environ['LOCAL_UUID'], 'ip': newip},
timeout=5
)
logging.debug(f"Pushed update to {key} at {ip}. Response: {response.status_code}")
except (requests.exceptions.ConnectionError, requests.exceptions.Timeout) as e:
logging.warning(f"Could not push update to {key}: {str(e)}")
class ConsumerCommunicator:
def __init__(self, redis_store: RedisSuperStorage):
self._redis_store = redis_store
self._session = requests.Session()
def targeted_snyc(self, ip: str):
try:
# request synchronization
response = requests.post(f"http://{ip}/sync", json={'uuid': os.environ['LOCAL_UUID']}, timeout=5)
except (requests.exceptions.ConnectionError, requests.exceptions.Timeout) as e:
logging.error(f"Error while syncing to {ip}: {str(e)}")
return
if response.status_code == 200:
self._redis_store.update_consumer(response.json()['uuid'], ip)
def sync_all(self):
for uuid, info in self._redis_store.get_consumer_list().items():
ip = info['ip']
try:
# request synchronization
response = requests.post(f"http://{ip}/sync", json={'uuid': os.environ['LOCAL_UUID']}, timeout=5)
except (requests.exceptions.ConnectionError, requests.exceptions.Timeout) as e:
logging.error(f"Error while syncing to {ip}: {str(e)}")
continue
if response.status_code == 200:
self._redis_store.update_consumer(response.json()['uuid'], ip)

View File

@ -24,16 +24,16 @@ class RedisSuperStorage:
return list_of_customers
def get_producer_list(self) -> list:
def get_producer_list(self) -> dict:
keys = self.r.keys('producer_*')
list_of_producer_ip = []
list_of_producer_ip = {}
for key in keys:
ip = (self.r.get(key) or b"").decode('utf-8')
if ip:
list_of_producer_ip.append(ip)
list_of_producer_ip[key.decode('utf-8')] = ip
return list_of_producer_ip