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edacs_call_manager.py
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#!/usr/bin/env python
# Copyright 2019,2020 Radiocapture LLC - Radiocapture.com
from stompest.config import StompConfig
from stompest.sync import Stomp
from stompest.protocol import StompSpec
import json
import threading
import time
import uuid
import sys
import signal
import math
import logging
import setproctitle
from redis_demod_manager import redis_demod_manager
from client_redis import client_redis
class edacs_call_manager():
def __init__(self):
self.log = logging.getLogger('overseer.edacs_call_manager')
self.log.info('Initializing edacs_call_manager')
self.demod_type = 'edacs'
setproctitle.setproctitle('%s - %s_call_manager' % (setproctitle.getproctitle(), self.demod_type))
self.redis_demod_manager = redis_demod_manager(self)
self.instance_locks = {}
self.amq_clients = {}
self.continue_running = True
self.hang_time = 0.5
self.instance_metadata = {}
self.system_metadata = {}
periodic_timeout_thread = threading.Thread(target=self.periodic_timeout_thread)
periodic_timeout_thread.daemon = True
periodic_timeout_thread.start()
def notify_demod_new(self, demod_instance_uuid):
self.log.info('Notified of new demod %s' % (demod_instance_uuid))
self.amq_clients[demod_instance_uuid] = client_redis(4)
self.amq_clients[demod_instance_uuid].subscribe('/topic/raw_control/%s' % (demod_instance_uuid), self, self.process_raw_control.__func__, False)
self.instance_locks[demod_instance_uuid] = threading.RLock()
def notify_demod_expire(self, demod_instance_uuid):
self.log.info('Notified of expired demod %s' % (demod_instance_uuid))
if demod_instance_uuid in self.amq_clients:
self.amq_clients[demod_instance_uuid].continue_running = False
self.amq_clients[demod_instance_uuid].unsubscribe('/topic/raw_control/%s' % (demod_instance_uuid))
def get_system_from_instance(self, instance_uuid):
try:
return self.redis_demod_manager.get_instance(instance_uuid)['system_uuid']
except:
return False
def call_user_to_group(self, instance_uuid, frequency, group_address, user_address=0, digital=False):
with self.instance_locks[instance_uuid]:
system_uuid = self.get_system_from_instance(instance_uuid)
if system_uuid == False:
return False
sct = self.system_metadata[system_uuid]['call_table']
ict = self.instance_metadata[instance_uuid]['call_table']
for call in ict:
if ict[call]['system_channel_local'] == frequency and ict[call]['system_group_local'] == group_address and (user_address == 0 or ict[call]['system_user_local'] == user_address):
ict[call]['time_activity'] = time.time()
return True
#Not a continuation, new call
call_uuid = None
for call in sct:
if sct[call]['system_group_local'] == group_address and (user_address == 0 or sct[call]['system_user_local'] == user_address) and time.time() - sct[call]['time_open'] < 1:
call_uuid = sct[call]['call_uuid']
break
if call_uuid == None:
#call is new systemwide, assign new UUID
call_uuid = '%s' % uuid.uuid4()
instance = self.redis_demod_manager.get_instance(instance_uuid)
cdr = {
'call_uuid': call_uuid,
'system_id': system_uuid,
'transmit_site_uuid': instance['transmit_site_uuid'],
'instance_uuid': instance_uuid,
'system_group_local': group_address,
'system_user_local': user_address,
'system_channel_local': frequency,
'type': 'group',
'frequency': frequency,
'channel_bandwidth': 12500,
'modulation_type': '%s' % ('analog_edacs' if digital == False else 'provoice'),
'hang_time': self.hang_time,
'time_open': time.time(),
'time_activity': time.time(),
}
ict[call_uuid] = cdr
if call_uuid not in sct:
sct[call_uuid] = cdr
sct[call_uuid]['instances'] = {instance_uuid: True}
else:
sct[call_uuid]['instances'][instance_uuid] = True
#event call open to record subsys
self.amq_clients[instance_uuid].send_event_lazy('/topic/call_management/new_call/%s' % instance_uuid, cdr)
self.redis_demod_manager.publish_call_table(instance_uuid, ict)
self.log.info('OPEN: %s %s %s %s' % (cdr['instance_uuid'], cdr['call_uuid'], cdr['system_group_local'], cdr['system_user_local']) )
def periodic_timeout_thread(self):
self.log.info('publish_loop() start')
while self.continue_running:
time.sleep(0.1)
for instance in list(self.instance_metadata):
with self.instance_locks[instance]:
ict = self.instance_metadata[instance]['call_table']
system_uuid = self.get_system_from_instance(instance)
if system_uuid == False:
continue
sct = self.system_metadata[system_uuid]['call_table']
closed_calls = []
for call_uuid in ict:
if time.time()-ict[call_uuid]['time_activity'] > ict[call_uuid]['hang_time']:
closed_calls.append(call_uuid)
#event call close to record subsys on call specific queue
self.amq_clients[instance].send_event_lazy('/topic/call_management/timeout/%s' % instance, {'call_uuid': call_uuid, 'instance_uuid': instance})
self.log.info('%s CLOSE: %s' % (time.time(), ict[call_uuid]))
for call_uuid in closed_calls:
del ict[call_uuid]
del sct[call_uuid]['instances'][instance]
if len(sct[call_uuid]['instances']) == 0:
del sct[call_uuid]
if len(closed_calls) > 0:
self.redis_demod_manager.publish_call_table(instance, ict)
def process_raw_control(self, t, headers):
instance_uuid = headers['destination'].replace('/topic/raw_control/', '')
instance = self.redis_demod_manager.get_instance(instance_uuid)
system_uuid = self.get_system_from_instance(instance_uuid)
if instance_uuid not in self.instance_metadata:
self.instance_metadata[instance_uuid] = {'channel_identifier_table': {}, 'patches': {}, 'call_table': {}}
if system_uuid not in self.system_metadata:
self.system_metadata[system_uuid] = {'call_table': {}}
if 'type' not in list(t):
return
with self.instance_locks[instance_uuid]:
if t['type'] == 'call_assignment_analog' :
#{u'logical_id': 5604, u'group': 1393, u'tx_trunked': True, u'frequency': 858712500, u'system_type': u'edacs', u'type': u'call_assignment_analog', u'channel': 11}
self.log.debug('call_assignment_analog: %s' % t)
self.call_user_to_group(instance_uuid, t['frequency'], t['group'], t['logical_id'])
elif t['type'] == 'call_continuation_analog':
#{u'individual': 0, u'frequency': 858712500, u'system_type': u'edacs', u'mtc': 2, u'type': u'call_continuation_analog', u'id': 1393, u'channel': 11}
self.log.debug('call_continuation_analog: %s' % t)
self.call_user_to_group(instance_uuid, t['frequency'], t['id'])
elif t['type'] == 'call_continuation_digital':
self.log.debug('call_continuation_digital: %s' % t)
self.call_user_to_group(instance_uuid, t['frequency'], t['id'], 0, True)
if __name__ == '__main__':
import logging
import logging.config
with open('config.logging.json', 'rt') as f:
config = json.load(f)
logging.config.dictConfig(config)
main = edacs_call_manager()
while True:
time.sleep(1)