class MqttRegistry(NodeBaseMqtt):
""" Application that manages a registry of data objetc used in the networl"""
def __init__(self):
super().__init__()
self.topic_fastclock_pub = None
self.topic_dashboard_pub = None
self.topic_backup_sub = None
self.diff_seconds = 0
self.fast_seconds = 0
self.fast_paused = False
self.fast_incr = 0
self.fast_ratio = 0
self.fast_interval = 0
self.roster = None
self.switches = None
self.warrants = None
self.signals = None
self.layout = None
self.dashboard = None
self.sensors = None
self.last_fasttime_seconds = 0
self.topic_ping_sub = None
self.topic_sensor_sub = None
self.topic_backup_sub = None
self.topic_node_pub = None
self.dashboard_interval = 30
self.last_dashboard_seconds = 0
self.backup_path = None
def initialize_threads(self):
""" Initializes io threads"""
super().initialize_threads()
self.dashboard_interval = int(self.ping_interval * 2)
self.topic_fastclock_pub = self.publish_topics[Global.FASTCLOCK]
self.topic_dashboard_pub = self.publish_topics[Global.DASHBOARD]
self.topic_node_pub = self.publish_topics[Global.NODE]
self.topic_ping_sub = self.subscribed_topics[Global.PING]
# print("!!! ping sub: "+self.topic_ping_sub)
self.topic_sensor_sub = self.subscribed_topics[Global.SENSOR]
self.topic_backup_sub = self.subscribed_topics[Global.BACKUP]
# print("!!! backup sub: "+self.topic_backup_sub)
if Global.CONFIG in self.config:
if Global.OPTIONS in self.config[Global.CONFIG]:
if Global.TIME in self.config[Global.CONFIG][Global.OPTIONS]:
if Global.FAST in self.config[Global.CONFIG][
Global.OPTIONS][Global.TIME]:
if Global.RATIO in self.config[Global.CONFIG][
Global.OPTIONS][Global.TIME][Global.FAST]:
self.fast_ratio = int(
self.config[Global.CONFIG][Global.OPTIONS][
Global.TIME][Global.FAST][Global.RATIO])
if Global.INTERVAL in self.config[Global.CONFIG][
Global.OPTIONS][Global.TIME][Global.FAST]:
self.fast_interval = int(
self.config[Global.CONFIG][Global.OPTIONS][
Global.TIME][Global.FAST][Global.INTERVAL])
if Global.PING in self.config[Global.CONFIG][Global.OPTIONS]:
self.ping_interval = self.config[Global.CONFIG][
Global.OPTIONS][Global.PING]
if Global.BACKUP in self.config[Global.CONFIG][Global.OPTIONS]:
self.backup_path = self.config[Global.CONFIG][
Global.OPTIONS][Global.BACKUP]
self.roster = Roster(self.log_queue,
file_path=Global.DATA + "/" + Global.ROSTER +
".json")
self.switches = Switches(self.log_queue,
file_path=Global.DATA + "/" +
Global.SWITCHES + ".json")
self.warrants = Warrants(self.log_queue,
file_path=Global.DATA + "/" +
Global.WARRANTS + ".json")
self.signals = Signals(self.log_queue,
file_path=Global.DATA + "/" + Global.SIGNALS +
".json")
self.layout = Layout(self.log_queue,
file_path=Global.DATA + "/" + Global.LAYOUT +
".json")
self.dashboard = Dashboard(self.log_queue,
file_path=Global.DATA + "/" +
Global.DASHBOARD + ".json")
self.sensors = Sensors(self.log_queue,
file_path=Global.DATA + "/" + Global.SENSORS +
".json")
def publish_inventory_request(self, io_data):
""" request inventory from a none """
now_seconds = self.now_seconds()
session_id = 'req:' + str(int(now_seconds))
topic = self.topic_node_pub + "/" + io_data.mqtt_node + "/" + Global.REPORT + "/" + Global.REQ
new_state_message = self.format_state_body(
self.node_name,
Global.REGISTRY,
session_id,
None, {Global.REPORT: Global.INVENTORY},
response_topic=self.topic_self_subscribed + "/" + Global.RES)
self.send_to_mqtt(topic, new_state_message)
self.log_queue.add_message(
"info", Global.PUBLISH + " " + Global.INVENTORY + " " +
Global.REQUEST + ": " + io_data.mqtt_node)
self.write_log_messages()
def publish_dashboard(self):
""" publish fasttimes broadcast message"""
now_seconds = self.now_seconds()
self.dashboard.update_states(now_seconds - 3 - self.ping_interval)
self.log_queue.add_message("info",
Global.PUBLISH + ": " + Global.STATE)
session_id = Global.DT + str(int(now_seconds))
self.last_dashboard_seconds = now_seconds
new_message = self.format_state_body(self.node_name,
Global.REGISTRY,
session_id,
{Global.REPORT: Global.DASHBOARD},
None,
metadata=self.dashboard.dump())
dashboard_topic = self.topic_dashboard_pub
self.send_to_mqtt(dashboard_topic, new_message)
def publish_fast_times(self):
""" publish fasttimes broadcast message"""
now_seconds = self.now_seconds()
self.log_queue.add_message("info",
Global.PUBLISH + ": " + Global.FASTCLOCK)
session_id = Global.DT + str(int(now_seconds))
diff_seconds = now_seconds - self.last_fasttime_seconds
self.last_fasttime_seconds = now_seconds
if not self.fast_paused:
self.fast_incr = self.fast_incr + (diff_seconds * self.fast_ratio)
self.fast_seconds = now_seconds + self.fast_incr
local_time = time.localtime(now_seconds)
fast_time = time.localtime(self.fast_seconds)
fast_ratio = self.fast_ratio
fast_state = 'run'
if self.fast_paused:
fast_state = 'paused'
fast_ratio = 0
local_time_dict = {
Global.EPOCH: int(now_seconds),
Global.YEAR: local_time.tm_year,
Global.MONTH: local_time.tm_mon,
Global.DAY: local_time.tm_mday,
Global.HOUR: local_time.tm_hour,
Global.MINUTES: local_time.tm_min,
Global.SECONDS: local_time.tm_sec
}
fast_time_dict = {
Global.EPOCH: int(self.fast_seconds),
Global.YEAR: fast_time.tm_year,
Global.MONTH: fast_time.tm_mon,
Global.DAY: fast_time.tm_mday,
Global.HOUR: fast_time.tm_hour,
Global.MINUTES: fast_time.tm_min,
Global.SECONDS: fast_time.tm_sec,
Global.RATIO: fast_ratio
}
fast_message = self.format_state_body(self.node_name,
Global.FASTCLOCK,
session_id,
fast_state,
None,
metadata={
Global.CURRENT:
local_time_dict,
Global.FASTCLOCK:
fast_time_dict
})
fast_topic = self.topic_fastclock_pub
self.send_to_mqtt(fast_topic, fast_message)
def process_received_backup_message(self, _message_topic, io_data):
""" process backup message received, a node wants to backup its config data """
backup_node_id = None
backup_node_config = None
if io_data.mqtt_message_root == Global.BACKUP:
backup_node_id = io_data.mqtt_node
backup_node_config = io_data.mqtt_metadata
if (backup_node_id is not None) and (backup_node_config
is not None):
# a backup has been received, save meta config to disk
self.log_queue.add_message(
"info",
Local.MSG_BACKUP_DATA_RECEIVED + " " + backup_node_id)
timestamp = datetime.datetime.now().isoformat()
if self.backup_path is not None:
file_path = self.backup_path + "/" + backup_node_id + "_" + timestamp + ".json"
with open(file_path, 'w') as json_file:
json.dump(backup_node_config, json_file)
def process_received_ping_message(self, _message_topic, io_data):
""" process ping message received"""
#print("received ping")
ping_node_id = None
if io_data.mqtt_message_root == Global.PING:
if io_data.mqtt_reported == Global.PING:
# a ping has been received, store it in dashboard
# print("ping OK!")
timestamp = int(self.now_seconds())
state = Global.RUN
ping_node_id = io_data.mqtt_node
if ping_node_id is not None:
if ping_node_id != self.node_name:
last_ping_time = self.dashboard.get_timestamp(
ping_node_id)
if last_ping_time == 0: # first ping from node, get inventory
self.publish_inventory_request(io_data)
#print("Ping from: "+ping_node_id)
self.log_queue.add_message(
"info",
Local.MSG_PING_DATA_RECEIVED + ": " + ping_node_id)
self.dashboard.update(ping_node_id, timestamp, state)
def process_received_sensor_message(self, message_topic, io_data):
""" process sensor message received"""
self.log_queue.add_message(
"debug", Global.MSG_REQUEST_MSG_RECEIVED + ": " + message_topic)
if io_data.mqtt_message_root == Global.SENSOR:
reported = io_data.mqtt_reported
# a sensor has been received, store it in dashboard
self.log_queue.add_message("info",
Global.RECEIVED + ": " + Global.SENSOR)
node_id = io_data.mqtt_node
port_id = io_data.mqtt_port
stype = io_data.mqtt_type
timestamp = int(self.now_seconds())
if (node_id is not None) and (port_id is not None):
self.sensors.update(node_id, port_id, reported, stype,
timestamp)
def process_fastclock_request(self, message_topic, io_data):
""" process a request to mange fastclock"""
new_state = "unknown"
request_ok = False
if io_data.mqtt_message_root == Global.FASTCLOCK:
fastclock_value = io_data.get_desired_value_by_key(
Global.FASTCLOCK)
desired_state = io_data.mqtt_desired
self.log_queue.add_message(
"debug", Global.FASTCLOCK + ': ' + Global.STATE + ' ' +
Global.REQ + ' : ' + str(desired_state))
if fastclock_value == Global.RESET:
self.fast_incr = 0
new_state = Global.RESET
request_ok = True
elif fastclock_value == Global.PAUSE:
self.fast_paused = True
new_state = Global.PAUSE
request_ok = True
elif fastclock_value == Global.RUN:
self.fast_paused = False
new_state = Global.RUN
request_ok = True
if request_ok:
state_topic = io_data.mqtt_resp_topic
state_message = self.format_state_body(
self.node_name, Global.FASTCLOCK, io_data.mqtt_resp_topic,
{Global.FASTCLOCK: new_state}, desired_state)
self.send_to_mqtt(state_topic, state_message)
else:
error_msg = (Global.UNKNOWN + " " + Global.FASTCLOCK + " " +
Global.STATE + " : [" + str(io_data.mqtt_desired) +
"]")
self.publish_error_reponse(error_msg, message_topic, io_data)
def process_roster_request(self, _message_topic, io_data):
""" process request for roster report """
new_message = self.format_state_body(self.node_name,
Global.REGISTRY,
io_data.mqtt_session_id,
{Global.REPORT: Global.ROSTER},
io_data.mqtt_desired,
metadata=self.roster.dump())
self.send_to_mqtt(io_data.mqtt_resp_topic, new_message)
def process_switches_request(self, _message_topic, io_data):
""" process request for switches report """
new_message = self.format_state_body(self.node_name,
Global.REGISTRY,
io_data.mqtt_session_id,
{Global.REPORT: Global.SWITCHES},
io_data.mqtt_desired,
metadata=self.switches.dump())
self.send_to_mqtt(io_data.mqtt_resp_topic, new_message)
def process_warrants_request(self, _message_topic, io_data):
""" process request for warrant report"""
new_message = self.format_state_body(self.node_name,
Global.REGISTRY,
io_data.mqtt_session_id,
{Global.REPORT: Global.WARRANTS},
io_data.mqtt_desired,
metadata=self.warrants.dump())
self.send_to_mqtt(io_data.mqtt_resp_topic, new_message)
def process_signals_request(self, _message_topic, io_data):
""" process request for signal report"""
new_message = self.format_state_body(self.node_name,
Global.REGISTRY,
io_data.mqtt_session_id,
{Global.REPORT: Global.SIGNALS},
io_data.mqtt_desired,
metadata=self.signals.dump())
self.send_to_mqtt(io_data.mqtt_resp_topic, new_message)
def process_layout_request(
self,
_message_topic,
io_data,
):
""" process request for layout report"""
new_message = self.format_state_body(self.node_name,
Global.REGISTRY,
io_data.mqtt_session_id,
{Global.REPORT: Global.LAYOUT},
io_data.mqtt_desired,
metadata=self.layout.dump())
self.send_to_mqtt(io_data.mqtt_resp_topic, new_message)
def process_dashboard_request(self, _message_topic, io_data):
""" process request for dashboard report"""
now_seconds = self.now_seconds()
self.dashboard.update_states(now_seconds - 3 - self.ping_interval)
new_message = self.format_state_body(self.node_name,
Global.REGISTRY,
io_data.mqtt_session_id,
{Global.REPORT: Global.DASHBOARD},
io_data.mqtt_desired,
metadata=self.dashboard.dump())
self.send_to_mqtt(io_data.mqtt_resp_topic, new_message)
def process_sensors_request(self, _message_topic, io_data):
""" process request for sensors report"""
new_message = self.format_state_body(self.node_name,
Global.REGISTRY,
io_data.mqtt_session_id,
{Global.REPORT: Global.SENSORS},
io_data.mqtt_desired,
metadata=self.sensors.dump())
self.send_to_mqtt(io_data.mqtt_resp_topic, new_message)
def process_report_request(self, message_topic, io_data):
""" process a request for repoting"""
request_ok = False
if io_data.mqtt_message_root == Global.REGISTRY:
report_value = io_data.get_desired_value_by_key(Global.REPORT)
desired_state = io_data.mqtt_desired
self.log_queue.add_message(
"debug", Global.REGISTRY + ': ' + Global.STATE + ' ' +
Global.REQ + ' : ' + str(desired_state))
if report_value is not None:
if report_value == Global.ROSTER:
self.process_roster_request(message_topic, io_data)
request_ok = True
elif report_value == Global.SWITCHES:
self.process_switches_request(message_topic, io_data)
request_ok = True
elif report_value == Global.WARRANTS:
self.process_warrants_request(message_topic, io_data)
request_ok = True
elif report_value == Global.SIGNALS:
self.process_signals_request(message_topic, io_data)
request_ok = True
elif report_value == Global.LAYOUT:
self.process_layout_request(message_topic, io_data)
request_ok = True
elif report_value == Global.DASHBOARD:
self.process_dashboard_request(message_topic, io_data)
request_ok = True
elif report_value == Global.SENSORS:
self.process_sensors_request(message_topic, io_data)
request_ok = True
if not request_ok:
error_msg = (Global.UNKNOWN + " " + Global.REPORT + " " +
Global.STATE + " : [" + str(io_data.mqtt_desired) +
"]")
self.publish_error_reponse(error_msg, message_topic, io_data)
def process_request_message(self, message_topic, io_data):
""" prosess a request message"""
self.log_queue.add_message(
"info", Global.MSG_REQUEST_MSG_RECEIVED + message_topic)
if message_topic != self.topic_broadcast_subscribed:
# broadcasts handled in parent class, node_mqtt
if message_topic.endswith("/" + Global.FASTCLOCK + "/" +
Global.REQ):
self.process_fastclock_request(message_topic, io_data)
elif message_topic.endswith("/" + Global.REPORT + "/" +
Global.REQ):
self.process_report_request(message_topic, io_data)
else:
self.log_queue.add_message(
"critical", Global.MSG_UNKNOWN_REQUEST + message_topic)
self.publish_error_reponse(Global.MSG_UNKNOWN_REQUEST,
message_topic, io_data)
def process_response_message(self, message_topic, _io_data):
""" process response message"""
# add code to process inventory responses
self.log_queue.add_message(
"debug", Global.MSG_RESPONSE_RECEIVED + message_topic)
def received_from_mqtt(self, message_topic, io_data):
""" process subscribed messages"""
self.log_queue.add_message("debug", "mqtt nessage: " + message_topic)
if message_topic.startswith(Global.CMD + "/"):
if message_topic.endswith("/" + Global.RES):
self.process_response_message(message_topic, io_data)
else:
self.process_request_message(message_topic, io_data)
elif message_topic.startswith(self.topic_ping_sub):
# print("found ping")
self.process_received_ping_message(message_topic, io_data)
elif message_topic.startswith(self.topic_backup_sub):
self.process_received_backup_message(message_topic, io_data)
elif message_topic.startswith(self.topic_sensor_sub):
self.process_received_sensor_message(message_topic, io_data)
else:
self.log_queue.add_message(
"critical", Global.MSG_UNKNOWN_REQUEST + message_topic)
def loop(self):
""" main process loop"""
self.log_queue.add_message("critical", Global.READY)
self.last_ping_seconds = self.now_seconds()
self.last_fasttime_seconds = self.now_seconds()
while not self.shutdown_app:
try:
time.sleep(0.5)
self.write_log_messages()
#print("do input")
# self.log_queue.add_message("debug", "process input")
self.process_input()
# self.log_queue.add_message("debug", " ... process input completed")
#print("... done")
now_seconds = self.now_seconds()
if (now_seconds - self.last_ping_seconds) > self.ping_interval:
#print("process pub ping")
self.publish_ping_broadcast()
#print("... proces ping pub done")
if (now_seconds -
self.last_fasttime_seconds) > self.fast_interval:
#print("process pub ping")
self.publish_fast_times()
#print("... proces ping pub done")
if (now_seconds -
self.last_dashboard_seconds) > self.dashboard_interval:
self.publish_dashboard()
except KeyboardInterrupt:
self.shutdown_app = True
