def __init__(self, username, password, con):
log.info("Logging into DCC")
self.comms = con
self.con = con.wss
self.username = username
self.password = password
self.proto = HelixProtocol(self.con, username, password)
self.info_file = self._init_info()
def on_receive_safe(msg):
try:
log.debug("Received msg: {0}".format(msg))
json_msg = json.loads(msg)
self.proto.on_receive(json.loads(msg))
log.debug("Processed msg: {0}".format(json_msg["type"]))
if json_msg["type"] == "connection_verified":
log.info("Connection verified")
exit()
except Exception:
raise
log.exception(
"Error received on connecting to DCC instance. Please verify the credentials and try again.")
thread = threading.Thread(target=self.con.run)
self.con.on_receive = on_receive_safe
thread.daemon = True
thread.start()
thread.join()
log.info("Logged in to DCC successfully")
def __init__(self, username, password, con):
log.info("Logging into DCC")
self.comms = con
self.con = con.wss
self.username = username
self.password = password
self.proto = HelixProtocol(self.con, username, password)
self._iotcc_json = self._create_iotcc_json()
self.dev_file_path = self._get_file_storage_path("dev_file_path")
# Liota internal entity file system path special for iotcc
self.entity_file_path = self._get_file_storage_path("entity_file_path")
self.file_ops_lock = Lock()
def on_receive_safe(msg):
try:
log.debug("Received msg: {0}".format(msg))
json_msg = json.loads(msg)
self.proto.on_receive(json.loads(msg))
log.debug("Processed msg: {0}".format(json_msg["type"]))
if json_msg["type"] == "connection_verified":
log.info("Connection verified")
exit()
except Exception:
raise
log.exception(
"Error received on connecting to DCC instance. Please verify the credentials and try again."
)
thread = threading.Thread(target=self.con.run)
self.con.on_receive = on_receive_safe
thread.daemon = True
thread.start()
thread.join()
log.info("Logged in to DCC successfully")
def __init__(self, con):
log.info("Logging into DCC")
self.comms = con
if not self.comms.identity.username:
log.error("Username not found")
raise ValueError("Username not found")
elif not self.comms.identity.password:
log.error("Password not found")
raise ValueError("Password not found")
thread = threading.Thread(target=self.comms.receive)
thread.daemon = True
# This thread will continuously run in background to receive response or actions from DCC
thread.start()
# Wait for Subscription to be complete and then proceed to publish message
time.sleep(0.5)
self.proto = HelixProtocol(self.comms, self.comms.identity.username, self.comms.identity.password)
self._iotcc_json = self._create_iotcc_json()
self.counter = 0
self.recv_msg_queue = self.comms.userdata
self.dev_file_path = self._get_file_storage_path("dev_file_path")
# Liota internal entity file system path special for iotcc
self.entity_file_path = self._get_file_storage_path("entity_file_path")
self.file_ops_lock = Lock()
try:
def on_response(msg):
log.debug("Received msg: {0}".format(msg))
json_msg = json.loads(msg)
self.proto.on_receive(json_msg)
if json_msg["type"] == "connection_response":
if json_msg["body"]["result"] == "succeeded":
log.info("Connection verified")
else:
raise Exception("Helix Protocol Version mismatch")
else:
log.debug("Processed msg: {0}".format(json_msg["type"]))
on_response(self.recv_msg_queue.get(True, 300))
# Block on Queue for not more then 300 seconds else it will raise an exception
on_response(self.recv_msg_queue.get(True, 300))
except Exception as error:
self.comms.client.disconnect()
log.error("HelixProtocolException: " + repr(error))
raise Exception("HelixProtocolException")
def __init__(self, username, password, con):
log.info("Logging into DCC")
self.comms = con
self.username = username
self.password = password
self.proto = HelixProtocol(self.comms, username, password)
self._iotcc_json = self._create_iotcc_json()
self.counter = 0
self.recv_msg_queue = self.comms.userdata
self.dev_file_path = self._get_file_storage_path("dev_file_path")
# Liota internal entity file system path special for iotcc
self.entity_file_path = self._get_file_storage_path("entity_file_path")
self.file_ops_lock = Lock()
def on_response(msg):
try:
log.debug("Received msg: {0}".format(msg))
json_msg = json.loads(msg)
self.proto.on_receive(json_msg)
if json_msg["type"] == "connection_response" and json_msg[
"body"]["result"] == "succeeded":
log.info("Connection verified")
return True
else:
log.debug("Processed msg: {0}".format(json_msg["type"]))
on_response(self.recv_msg_queue.get(True, 10))
except Exception as error:
log.error("HelixProtocolException: " + repr(error))
thread = threading.Thread(target=self.comms.receive)
thread.daemon = True
# This thread will continuously run in background to receive response or actions from DCC
thread.start()
# Block on Queue for not more then 10 seconds else it will raise an exception
on_response(self.recv_msg_queue.get(True, 10))
log.info("Logged in to DCC successfully")
def __init__(self, con):
log.info("Logging into DCC")
self.comms = con
if not self.comms.identity.username:
log.error("Username not found")
raise ValueError("Username not found")
elif not self.comms.identity.password:
log.error("Password not found")
raise ValueError("Password not found")
thread = threading.Thread(target=self.comms.receive)
thread.daemon = True
# This thread will continuously run in background to receive response or actions from DCC
thread.start()
# Wait for Subscription to be complete and then proceed to publish message
time.sleep(0.5)
self.proto = HelixProtocol(self.comms, self.comms.identity.username, self.comms.identity.password)
self._iotcc_json = self._create_iotcc_json()
self._iotcc_json_load_retry = int(read_liota_config('IOTCC', 'iotcc_load_retry'))
self.counter = 0
self.recv_msg_queue = self.comms.userdata
self.dev_file_path = self._get_file_storage_path("dev_file_path")
# Liota internal entity file system path special for iotcc
self.entity_file_path = self._get_file_storage_path("entity_file_path")
self.file_ops_lock = Lock()
try:
def on_response(msg):
log.debug("Received msg: {0}".format(msg))
json_msg = json.loads(msg)
self.proto.on_receive(json_msg)
if json_msg["type"] == "connection_response":
if json_msg["body"]["result"] == "succeeded":
log.info("Connection verified")
else:
raise Exception("Helix Protocol Version mismatch")
else:
log.debug("Processed msg: {0}".format(json_msg["type"]))
on_response(self.recv_msg_queue.get(True, 300))
# Block on Queue for not more then 300 seconds else it will raise an exception
on_response(self.recv_msg_queue.get(True, 300))
except Exception as error:
self.comms.client.disconnect()
log.error("HelixProtocolException: " + repr(error))
raise Exception("HelixProtocolException")
class IotControlCenter(DataCenterComponent):
""" The implementation of IoTCC cloud provider solution
"""
def __init__(self, username, password, con):
log.info("Logging into DCC")
self.comms = con
self.username = username
self.password = password
thread = threading.Thread(target=self.comms.receive)
thread.daemon = True
# This thread will continuously run in background to receive response or actions from DCC
thread.start()
self.proto = HelixProtocol(self.comms, username, password)
self._iotcc_json = self._create_iotcc_json()
self.counter = 0
self.recv_msg_queue = self.comms.userdata
self.dev_file_path = self._get_file_storage_path("dev_file_path")
# Liota internal entity file system path special for iotcc
self.entity_file_path = self._get_file_storage_path("entity_file_path")
self.file_ops_lock = Lock()
def on_response(msg):
try:
log.debug("Received msg: {0}".format(msg))
json_msg = json.loads(msg)
self.proto.on_receive(json_msg)
if json_msg["type"] == "connection_response" and json_msg[
"body"]["result"] == "succeeded":
log.info("Connection verified")
return True
else:
log.debug("Processed msg: {0}".format(json_msg["type"]))
on_response(self.recv_msg_queue.get(True, 300))
except Exception as error:
log.error("HelixProtocolException: " + repr(error))
# Block on Queue for not more then 300 seconds else it will raise an exception
on_response(self.recv_msg_queue.get(True, 300))
log.info("Logged in to DCC successfully")
def register(self, entity_obj):
""" Register the objects
"""
if isinstance(entity_obj, Metric):
# reg_entity_id should be parent's one: not known here yet
# will add in creat_relationship(); publish_unit should be done inside
return RegisteredMetric(entity_obj, self, None)
else:
# finally will create a RegisteredEntity
log.info("Registering resource with IoTCC {0}".format(
entity_obj.name))
def on_response(msg):
try:
log.debug("Received msg: {0}".format(msg))
json_msg = json.loads(msg)
log.debug("Processed msg: {0}".format(json_msg["type"]))
if json_msg["type"] == "create_or_find_resource_response" and json_msg["body"]["uuid"] != "null" and \
json_msg["body"]["id"] == entity_obj.entity_id:
log.info("FOUND RESOURCE: {0}".format(
json_msg["body"]["uuid"]))
self.reg_entity_id = json_msg["body"]["uuid"]
else:
log.info("Waiting for resource creation")
on_response(self.recv_msg_queue.get(True, 300))
except:
raise Exception("Exception while registering resource")
if entity_obj.entity_type == "EdgeSystem":
entity_obj.entity_type = "HelixGateway"
self.comms.send(
json.dumps(
self._registration(self.next_id(), entity_obj.entity_id,
entity_obj.name,
entity_obj.entity_type)))
on_response(self.recv_msg_queue.get(True, 300))
if not self.reg_entity_id:
raise RegistrationFailure()
log.info("Resource Registered {0}".format(entity_obj.name))
if entity_obj.entity_type == "HelixGateway":
self.store_reg_entity_details(entity_obj.entity_type,
entity_obj.name,
self.reg_entity_id)
store_edge_system_uuid(entity_name=entity_obj.name,
entity_id=entity_obj.entity_id,
reg_entity_id=self.reg_entity_id)
with self.file_ops_lock:
self.store_reg_entity_attributes("EdgeSystem",
entity_obj.name,
self.reg_entity_id, None,
None)
else:
self.store_reg_entity_details(entity_obj.entity_type,
entity_obj.name,
self.reg_entity_id)
# get dev_type, and prop_dict if possible
with self.file_ops_lock:
self.store_reg_entity_attributes("Devices",
entity_obj.name,
self.reg_entity_id,
entity_obj.entity_type,
None)
return RegisteredEntity(entity_obj, self, self.reg_entity_id)
def unregister(self, entity_obj):
""" Unregister the objects
"""
log.info("Unregistering resource with IoTCC {0}".format(
entity_obj.ref_entity.name))
def on_response(msg):
try:
log.debug("Received msg: {0}".format(msg))
json_msg = json.loads(msg)
log.debug("Processed msg: {0}".format(json_msg["type"]))
if json_msg["type"] == "remove_resource_response" and json_msg[
"body"]["result"] == "succeeded":
log.info(
"Unregistration of resource {0} with IoTCC succeeded".
format(entity_obj.ref_entity.name))
else:
log.info(
"Unregistration of resource {0} with IoTCC failed".
format(entity_obj.ref_entity.name))
except:
raise Exception("Exception while unregistering resource")
self.comms.send(
json.dumps(
self._unregistration(self.next_id(),
entity_obj.reg_entity_id)))
on_response(self.recv_msg_queue.get(True, 20))
self.remove_reg_entity_details(entity_obj.ref_entity.name,
entity_obj.reg_entity_id)
if entity_obj.ref_entity.entity_type != "HelixGateway":
self.store_device_info(entity_obj.reg_entity_id,
entity_obj.ref_entity.name,
entity_obj.ref_entity.entity_type, None,
True)
log.info("Unregistration of resource {0} with IoTCC complete".format(
entity_obj.ref_entity.name))
def create_relationship(self, reg_entity_parent, reg_entity_child):
""" This function initializes all relations between Registered Entities.
Parameters:
- obj: The object that has just obtained an UUID
"""
# sanity check: must be RegisteredEntity or RegisteredMetricRegisteredMetric
if (not isinstance(reg_entity_parent, RegisteredEntity) \
and not isinstance(reg_entity_parent, RegisteredMetric)) \
or (not isinstance(reg_entity_child, RegisteredEntity) \
and not isinstance(reg_entity_child, RegisteredMetric)):
raise TypeError()
reg_entity_child.parent = reg_entity_parent
if isinstance(reg_entity_child, RegisteredMetric):
# should save parent's reg_entity_id
reg_entity_child.reg_entity_id = reg_entity_parent.reg_entity_id
entity_obj = reg_entity_child.ref_entity
self.publish_unit(reg_entity_child, entity_obj.name,
entity_obj.unit)
else:
self.comms.send(
json.dumps(
self._relationship(self.next_id(),
reg_entity_parent.reg_entity_id,
reg_entity_child.reg_entity_id)))
def _registration(self, msg_id, res_id, res_name, res_kind):
return {
"transactionID": msg_id,
"type": "create_or_find_resource_request",
"body": {
"kind": res_kind,
"id": res_id,
"name": res_name
}
}
def _relationship(self, msg_id, parent_res_uuid, child_res_uuid):
return {
"transactionID": msg_id,
"type": "create_relationship_request",
"body": {
"parent": parent_res_uuid,
"child": child_res_uuid
}
}
def _properties(self, msg_id, res_uuid, res_kind, timestamp, properties):
msg = {
"transationID": msg_id,
"type": "add_properties",
"uuid": res_uuid,
"body": {
"kind": res_kind,
"timestamp": timestamp,
"property_data": []
}
}
for key, value in properties.items():
msg["body"]["property_data"].append({
"propertyKey": key,
"propertyValue": value
})
return msg
def _format_data(self, reg_metric):
met_cnt = reg_metric.values.qsize()
if met_cnt == 0:
return
_timestamps = []
_values = []
for _ in range(met_cnt):
m = reg_metric.values.get(block=True)
if m is not None:
_timestamps.append(m[0])
_values.append(m[1])
if _timestamps == []:
return
return json.dumps({
"type":
"add_stats",
"uuid":
reg_metric.reg_entity_id,
"metric_data": [{
"statKey": reg_metric.ref_entity.name,
"timestamps": _timestamps,
"data": _values
}]
})
def set_organization_group_properties(self, reg_entity_name, reg_entity_id,
reg_entity_type, properties):
log.info(
"Organization Group Properties defined for resource {0}".format(
reg_entity_name))
self.comms.send(
json.dumps(
self._properties(self.next_id(), reg_entity_id,
reg_entity_type, getUTCmillis(), properties)))
def set_properties(self, reg_entity_obj, properties):
# RegisteredMetric get parent's resid; RegisteredEntity gets own resid
reg_entity_id = reg_entity_obj.reg_entity_id
if isinstance(reg_entity_obj, RegisteredMetric):
entity = reg_entity_obj.parent.ref_entity
else:
entity = reg_entity_obj.ref_entity
log.info("Properties defined for resource {0}".format(entity.name))
self.comms.send(
json.dumps(
self._properties(self.next_id(),
reg_entity_id, entity.entity_type,
getUTCmillis(), properties)))
if entity.entity_type == "HelixGateway":
with self.file_ops_lock:
self.store_reg_entity_attributes("EdgeSystem", entity.name,
reg_entity_obj.reg_entity_id,
None, properties)
else:
# get dev_type, and prop_dict if possible
with self.file_ops_lock:
self.store_reg_entity_attributes("Devices", entity.name,
reg_entity_obj.reg_entity_id,
entity.entity_type,
properties)
def publish_unit(self, reg_entity_obj, metric_name, unit):
str_prefix, str_unit_name = parse_unit(unit)
if not isinstance(str_prefix, basestring):
str_prefix = ""
if not isinstance(str_unit_name, basestring):
str_unit_name = ""
properties_added = {
metric_name + "_unit": str_unit_name,
metric_name + "_prefix": str_prefix
}
self.set_properties(reg_entity_obj, properties_added)
log.info("Published metric unit with prefix to IoTCC")
def prettify(self, elem):
"""Return a pretty-printed XML string for the Element.
"""
rough_string = ET.tostring(elem)
reparsed = minidom.parseString(rough_string)
return reparsed.toprettyxml(indent=" ")
def _create_iotcc_json(self):
msg = {
"iotcc": {
"EdgeSystem": {
"SystemName": "",
"EntityType": "",
"uuid": ""
},
"OGProperties": {
"OrganizationGroup": ""
},
"Devices": []
}
}
iotcc_path = read_liota_config('IOTCC_PATH', 'iotcc_path')
path = os.path.dirname(iotcc_path)
mkdir(path)
try:
with open(iotcc_path, 'w') as f:
json.dump(msg, f, sort_keys=True, indent=4, ensure_ascii=False)
log.debug('Initialized ' + iotcc_path)
f.close()
except IOError, err:
log.error('Could not open {0} file '.format(iotcc_path) + err)
return iotcc_path
class IotControlCenter(DataCenterComponent):
""" The implementation of IoTCC cloud provider solution
"""
def __init__(self, username, password, con):
log.info("Logging into DCC")
self.comms = con
self.con = con.wss
self.username = username
self.password = password
self.proto = HelixProtocol(self.con, username, password)
self.info_file = self._init_info()
def on_receive_safe(msg):
try:
log.debug("Received msg: {0}".format(msg))
json_msg = json.loads(msg)
self.proto.on_receive(json.loads(msg))
log.debug("Processed msg: {0}".format(json_msg["type"]))
if json_msg["type"] == "connection_verified":
log.info("Connection verified")
exit()
except Exception:
raise
log.exception(
"Error received on connecting to DCC instance. Please verify the credentials and try again.")
thread = threading.Thread(target=self.con.run)
self.con.on_receive = on_receive_safe
thread.daemon = True
thread.start()
thread.join()
log.info("Logged in to DCC successfully")
def register(self, entity_obj):
""" Register the objects
"""
if isinstance(entity_obj, Metric):
# reg_entity_id should be parent's one: not known here yet
# will add in creat_relationship(); publish_unit should be done inside
return RegisteredMetric(entity_obj, self, None)
else:
# finally will create a RegisteredEntity
log.info("Registering resource with IoTCC {0}".format(entity_obj.name))
def on_receive_safe(msg):
try:
log.debug("Received msg: {0}".format(msg))
if msg != "":
json_msg = json.loads(msg)
self.proto.on_receive(json.loads(msg))
log.debug("Processed msg: {0}".format(json_msg["type"]))
if json_msg["type"] == "create_or_find_resource_response":
if json_msg["body"]["uuid"] != "null":
log.info("FOUND RESOURCE: {0}".format(json_msg["body"]["uuid"]))
self.reg_entity_id = json_msg["body"]["uuid"]
exit()
else:
log.info("Waiting for resource creation")
time.sleep(5)
self.con.send(
self._registration(self.con.next_id(), entity_obj.entity_id, entity_obj.name,
entity_obj.entity_type))
except:
raise
thread = threading.Thread(target=self.con.run)
self.con.on_receive = on_receive_safe
thread.daemon = True
thread.start()
if entity_obj.entity_type == "EdgeSystem":
entity_obj.entity_type = "HelixGateway"
self.con.send(
self._registration(self.con.next_id(), entity_obj.entity_id, entity_obj.name, entity_obj.entity_type))
thread.join()
if not hasattr(self, 'reg_entity_id'):
raise RegistrationFailure()
log.info("Resource Registered {0}".format(entity_obj.name))
if entity_obj.entity_type == "HelixGateway":
self.store_reg_entity_details("EdgeSystem", entity_obj.name, self.reg_entity_id)
self.store_edge_system_uuid(entity_obj.name, self.reg_entity_id)
else:
self.store_reg_entity_details("Devices", entity_obj.name, self.reg_entity_id)
return RegisteredEntity(entity_obj, self, self.reg_entity_id)
def create_relationship(self, reg_entity_parent, reg_entity_child):
""" This function initializes all relations between Registered Entities.
Parameters:
- obj: The object that has just obtained an UUID
"""
# sanity check: must be RegisteredEntity or RegisteredMetricRegisteredMetric
if (not isinstance(reg_entity_parent, RegisteredEntity) \
and not isinstance(reg_entity_parent, RegisteredMetric)) \
or (not isinstance(reg_entity_child, RegisteredEntity) \
and not isinstance(reg_entity_child, RegisteredMetric)):
raise TypeError()
reg_entity_child.parent = reg_entity_parent
if isinstance(reg_entity_child, RegisteredMetric):
# should save parent's reg_entity_id
reg_entity_child.reg_entity_id = reg_entity_parent.reg_entity_id
entity_obj = reg_entity_child.ref_entity
self.publish_unit(reg_entity_child, entity_obj.name, entity_obj.unit)
else:
self.con.send(self._relationship(self.con.next_id(),
reg_entity_parent.reg_entity_id, reg_entity_child.reg_entity_id))
def _registration(self, msg_id, res_id, res_name, res_kind):
return {
"transactionID": msg_id,
"type": "create_or_find_resource_request",
"body": {
"kind": res_kind,
"id": res_id,
"name": res_name
}
}
def _relationship(self, msg_id, parent_res_uuid, child_res_uuid):
return {
"transactionID": msg_id,
"type": "create_relationship_request",
"body": {
"parent": parent_res_uuid,
"child": child_res_uuid
}
}
def _properties(self, msg_id, res_uuid, res_kind, timestamp, properties):
msg = {
"transationID": msg_id,
"type": "add_properties",
"uuid": res_uuid,
"body": {
"kind": res_kind,
"timestamp": timestamp,
"property_data": []
}
}
for key, value in properties.items():
msg["body"]["property_data"].append({"propertyKey": key, "propertyValue": value})
return msg
def _format_data(self, reg_metric):
met_cnt = reg_metric.values.qsize()
if met_cnt == 0:
return
_timestamps = []
_values = []
for _ in range(met_cnt):
m = reg_metric.values.get(block=True)
if m is not None:
_timestamps.append(m[0])
_values.append(m[1])
if _timestamps == []:
return
return {
"type": "add_stats",
"uuid": reg_metric.reg_entity_id,
"metric_data": [{
"statKey": reg_metric.ref_entity.name,
"timestamps": _timestamps,
"data": _values
}],
}
def set_properties(self, reg_entity_obj, properties):
# RegisteredMetric get parent's resid; RegisteredEntity gets own resid
reg_entity_id = reg_entity_obj.reg_entity_id
if isinstance(reg_entity_obj, RegisteredMetric):
entity = reg_entity_obj.parent.ref_entity
else:
entity = reg_entity_obj.ref_entity
log.info("Properties defined for resource {0}".format(entity.name))
self.con.send(
self._properties(self.con.next_id(), reg_entity_id, entity.entity_type,
getUTCmillis(), properties))
def publish_unit(self, reg_entity_obj, metric_name, unit):
str_prefix, str_unit_name = parse_unit(unit)
if not isinstance(str_prefix, basestring):
str_prefix = ""
if not isinstance(str_unit_name, basestring):
str_unit_name = ""
properties_added = {
metric_name + "_unit": str_unit_name,
metric_name + "_prefix": str_prefix
}
self.set_properties(reg_entity_obj, properties_added)
log.info("Published metric unit with prefix to IoTCC")
def _init_info(self):
msg = {
"iotcc": {
"EdgeSystem": {"SystemName": "", "uuid": ""},
"Devices": []
}
}
config = ConfigParser.RawConfigParser()
fullPath = LiotaConfigPath().get_liota_fullpath()
iotcc_path = ''
if fullPath != '':
try:
if config.read(fullPath) != []:
try:
iotcc_path = config.get('IOTCC_PATH', 'iotcc_path')
except ConfigParser.ParsingError, err:
log.error('Could not open config file')
else:
raise IOError('Could not open config file ' + fullPath)
except IOError, err:
log.error('Could not open config file ' + err)
class IotControlCenter(DataCenterComponent):
""" The implementation of IoTCC cloud provider solution
"""
def __init__(self, con):
log.info("Logging into DCC")
self.comms = con
if not self.comms.identity.username:
log.error("Username not found")
raise ValueError("Username not found")
elif not self.comms.identity.password:
log.error("Password not found")
raise ValueError("Password not found")
thread = threading.Thread(target=self.comms.receive)
thread.daemon = True
# This thread will continuously run in background to receive response or actions from DCC
thread.start()
# Wait for Subscription to be complete and then proceed to publish message
time.sleep(0.5)
self.proto = HelixProtocol(self.comms, self.comms.identity.username, self.comms.identity.password)
self._iotcc_json = self._create_iotcc_json()
self._iotcc_json_load_retry = int(read_liota_config('IOTCC', 'iotcc_load_retry'))
self.counter = 0
self.recv_msg_queue = self.comms.userdata
self.dev_file_path = self._get_file_storage_path("dev_file_path")
# Liota internal entity file system path special for iotcc
self.entity_file_path = self._get_file_storage_path("entity_file_path")
self.file_ops_lock = Lock()
try:
def on_response(msg):
log.debug("Received msg: {0}".format(msg))
json_msg = json.loads(msg)
self.proto.on_receive(json_msg)
if json_msg["type"] == "connection_response":
if json_msg["body"]["result"] == "succeeded":
log.info("Connection verified")
else:
raise Exception("Helix Protocol Version mismatch")
else:
log.debug("Processed msg: {0}".format(json_msg["type"]))
on_response(self.recv_msg_queue.get(True, 300))
# Block on Queue for not more then 300 seconds else it will raise an exception
on_response(self.recv_msg_queue.get(True, 300))
except Exception as error:
self.comms.client.disconnect()
log.error("HelixProtocolException: " + repr(error))
raise Exception("HelixProtocolException")
def register(self, entity_obj):
""" Register the objects
"""
if isinstance(entity_obj, Metric):
# reg_entity_id should be parent's one: not known here yet
# will add in creat_relationship(); publish_unit should be done inside
return RegisteredMetric(entity_obj, self, None)
else:
# finally will create a RegisteredEntity
log.info("Registering resource with IoTCC {0}".format(entity_obj.name))
def on_response(msg):
try:
log.debug("Received msg: {0}".format(msg))
json_msg = json.loads(msg)
log.debug("Processed msg: {0}".format(json_msg["type"]))
if json_msg["type"] == "create_or_find_resource_response" and json_msg["body"]["uuid"] != "null" and \
json_msg["body"]["id"] == entity_obj.entity_id:
log.info("FOUND RESOURCE: {0}".format(json_msg["body"]["uuid"]))
self.reg_entity_id = json_msg["body"]["uuid"]
else:
log.info("Waiting for resource creation")
on_response(self.recv_msg_queue.get(True, 300))
except:
raise Exception("Exception while registering resource")
if entity_obj.entity_type == "EdgeSystem":
entity_obj.entity_type = "HelixGateway"
self.comms.send(json.dumps(
self._registration(self.next_id(), entity_obj.entity_id, entity_obj.name, entity_obj.entity_type)))
on_response(self.recv_msg_queue.get(True, 300))
if not self.reg_entity_id:
raise RegistrationFailure()
log.info("Resource Registered {0}".format(entity_obj.name))
if entity_obj.entity_type == "HelixGateway":
with self.file_ops_lock:
self.store_reg_entity_details(entity_obj.entity_type, entity_obj.name, self.reg_entity_id,
entity_obj.entity_id)
self.store_reg_entity_attributes("EdgeSystem", entity_obj.name,
self.reg_entity_id, None, None)
else:
# get dev_type, and prop_dict if possible
with self.file_ops_lock:
self.store_reg_entity_attributes("Devices", entity_obj.name, self.reg_entity_id,
entity_obj.entity_type, None)
return RegisteredEntity(entity_obj, self, self.reg_entity_id)
def unregister(self, entity_obj):
""" Unregister the objects
"""
log.info("Unregistering resource with IoTCC {0}".format(entity_obj.ref_entity.name))
def on_response(msg):
try:
log.debug("Received msg: {0}".format(msg))
json_msg = json.loads(msg)
log.debug("Processed msg: {0}".format(json_msg["type"]))
if json_msg["type"] == "remove_resource_response" and json_msg["body"]["result"] == "succeeded":
log.info("Unregistration of resource {0} with IoTCC succeeded".format(entity_obj.ref_entity.name))
else:
log.info("Unregistration of resource {0} with IoTCC failed".format(entity_obj.ref_entity.name))
except:
raise Exception("Exception while unregistering resource")
self.comms.send(json.dumps(self._unregistration(self.next_id(), entity_obj.ref_entity)))
on_response(self.recv_msg_queue.get(True, 20))
if entity_obj.ref_entity.entity_type != "HelixGateway":
self.store_device_info(entity_obj.reg_entity_id, entity_obj.ref_entity.name,
entity_obj.ref_entity.entity_type, None, True)
else:
self.remove_reg_entity_details(entity_obj.ref_entity.name, entity_obj.reg_entity_id)
self.store_device_info(entity_obj.reg_entity_id, entity_obj.ref_entity.name, None, None, True)
log.info("Unregistration of resource {0} with IoTCC complete".format(entity_obj.ref_entity.name))
def create_relationship(self, reg_entity_parent, reg_entity_child):
""" This function initializes all relations between Registered Entities.
Parameters:
- obj: The object that has just obtained an UUID
"""
# sanity check: must be RegisteredEntity or RegisteredMetricRegisteredMetric
if (not isinstance(reg_entity_parent, RegisteredEntity) \
and not isinstance(reg_entity_parent, RegisteredMetric)) \
or (not isinstance(reg_entity_child, RegisteredEntity) \
and not isinstance(reg_entity_child, RegisteredMetric)):
raise TypeError()
reg_entity_child.parent = reg_entity_parent
if isinstance(reg_entity_child, RegisteredMetric):
# should save parent's reg_entity_id
reg_entity_child.reg_entity_id = reg_entity_parent.reg_entity_id
entity_obj = reg_entity_child.ref_entity
self.publish_unit(reg_entity_child, entity_obj.name, entity_obj.unit)
else:
self.comms.send(json.dumps(self._relationship(self.next_id(),
reg_entity_parent.reg_entity_id,
reg_entity_child.reg_entity_id)))
def _registration(self, msg_id, res_id, res_name, res_kind):
return {
"transactionID": msg_id,
"type": "create_or_find_resource_request",
"body": {
"kind": res_kind,
"id": res_id,
"name": res_name
}
}
def _relationship(self, msg_id, parent_res_uuid, child_res_uuid):
return {
"transactionID": msg_id,
"type": "create_relationship_request",
"body": {
"parent": parent_res_uuid,
"child": child_res_uuid
}
}
def _properties(self, msg_id, entity_type, entity_id, entity_name, timestamp, properties):
msg = {
"transationID": msg_id,
"type": "add_properties",
"body": {
"kind": entity_type,
"id": entity_id,
"name": entity_name,
"timestamp": timestamp,
"property_data": []
}
}
for key, value in properties.items():
msg["body"]["property_data"].append({"propertyKey": key, "propertyValue": value})
return msg
def _format_data(self, reg_metric):
met_cnt = reg_metric.values.qsize()
if met_cnt == 0:
return
_timestamps = []
_values = []
for _ in range(met_cnt):
m = reg_metric.values.get(block=True)
if m is not None:
_timestamps.append(m[0])
_values.append(m[1])
if _timestamps == []:
return
return json.dumps({
"type": "add_stats",
"body": {
"kind": reg_metric.parent.ref_entity.entity_type,
"id": reg_metric.parent.ref_entity.entity_id,
"name": reg_metric.parent.ref_entity.name
},
"metric_data": [{
"statKey": reg_metric.ref_entity.name,
"timestamps": _timestamps,
"data": _values
}]
})
def set_organization_group_properties(self, reg_entity_name, reg_entity_id, reg_entity_type, entity_local_uuid,
properties):
log.info("Organization Group Properties defined for resource {0}".format(reg_entity_name))
self.comms.send(json.dumps(
self._properties(self.next_id(), reg_entity_type, entity_local_uuid, reg_entity_name,
getUTCmillis(), properties)))
def set_properties(self, reg_entity_obj, properties):
# RegisteredMetric get parent's resid; RegisteredEntity gets own resid
reg_entity_id = reg_entity_obj.reg_entity_id
if isinstance(reg_entity_obj, RegisteredMetric):
entity = reg_entity_obj.parent.ref_entity
else:
entity = reg_entity_obj.ref_entity
log.info("Properties defined for resource {0}".format(entity.name))
self.comms.send(json.dumps(
self._properties(self.next_id(), entity.entity_type, entity.entity_id, entity.name,
getUTCmillis(), properties)))
if entity.entity_type == "HelixGateway":
with self.file_ops_lock:
self.store_reg_entity_attributes("EdgeSystem", entity.name,
reg_entity_obj.reg_entity_id, None, properties)
else:
# get dev_type, and prop_dict if possible
with self.file_ops_lock:
self.store_reg_entity_attributes("Devices", entity.name, reg_entity_obj.reg_entity_id,
entity.entity_type, properties)
def publish_unit(self, reg_entity_obj, metric_name, unit):
str_prefix, str_unit_name = parse_unit(unit)
if not isinstance(str_prefix, basestring):
str_prefix = ""
if not isinstance(str_unit_name, basestring):
str_unit_name = ""
properties_added = {
metric_name + "_unit": str_unit_name,
metric_name + "_prefix": str_prefix
}
self.set_properties(reg_entity_obj, properties_added)
log.info("Published metric unit with prefix to IoTCC")
def _create_iotcc_json(self):
msg = {
"iotcc": {
"EdgeSystem": {"SystemName": "", "EntityType": "", "uuid": "", "LocalUuid": ""},
"OGProperties": {"OrganizationGroup": ""},
"Devices": []
}
}
iotcc_path = read_liota_config('IOTCC_PATH', 'iotcc_path')
path = os.path.dirname(iotcc_path)
mkdir(path)
try:
with open(iotcc_path, 'w') as f:
json.dump(msg, f, sort_keys=True, indent=4, ensure_ascii=False)
log.debug('Initialized ' + iotcc_path)
f.close()
except IOError, err:
log.error('Could not open {0} file '.format(iotcc_path) + err)
return iotcc_path
