def disconnect(self, namespace, delete=False):
## \brief Delete subscription by namespace
# \param entity name
# \param flag to indicate if the subscription must be deleted locally (False by default)
if namespace in self.subscriptions:
deleteContext(namespace, True)
subscription = self.subscriptions[namespace]
subscriptionId = subscription["id"]
Log("INFO", "\nDisconnecting Context Broker subscription {}".format(subscriptionId))
url = "http://{}:{}/NGSI10/unsubscribeContext".format(DATA_CONTEXTBROKER["ADDRESS"], DATA_CONTEXTBROKER["PORT"])
disconnect_json = json.dumps({
"subscriptionId": subscriptionId
})
response_body = self._sendRequest(url, disconnect_json)
if response_body is not None:
if int(response_body["statusCode"]["code"]) >= 400:
Log("ERROR", "Error Disconnecting from Context Broker (subscription: {}):".format(subscriptionId))
Log("ERROR", response_body["statusCode"]["reasonPhrase"])
Log("INFO", "\n")
else:
Log("INFO", "Disconnected subscription {} from Context Broker ".format(subscriptionId))
Log("INFO", "Deleting entity")
self.deleteEntity(subscription["namespace"], subscription["data_type"])
Log("INFO", "\n")
if delete:
del self.subscriptions[namespace]
def deleteEntity(self, namespace, data_type, removeContext=True):
## \brief Delete entity from context broker
# \param entity name
# \param entity type
Log("INFO", "DELETING: ", namespace, data_type)
operation_json = json.dumps({
"contextElements": [
{
"type": data_type,
"isPattern": "false",
"id": namespace
}
],
"updateAction": "DELETE"
})
url = "http://{}:{}/NGSI10/updateContext".format(DATA_CONTEXTBROKER["ADDRESS"], DATA_CONTEXTBROKER["PORT"])
response_body = self._sendRequest(url, operation_json)
if response_body is not None:
if "errorCode" in response_body:
Log("ERROR", "Error deleting entity")
Log("ERROR", response_body["errorCode"]["details"])
elif "orionError" in response_body:
Log("ERROR", "Error deleting entity")
Log("ERROR", response_body["orionError"]["details"])
else:
Log("INFO", "Deleted entity " + namespace)
if removeContext:
deleteContext(namespace, True)
def deleteEntity(self, namespace, data_type, removeContext=True):
## \brief Delete entity from context broker
# \param entity name
# \param entity type
Log("INFO", "DELETING: ", namespace, data_type)
operation_json = json.dumps({
"contextElements": [{
"type": data_type,
"isPattern": "false",
"id": namespace
}],
"updateAction":
"DELETE"
})
url = "http://{}:{}/NGSI10/updateContext".format(
DATA_CONTEXTBROKER["ADDRESS"], DATA_CONTEXTBROKER["PORT"])
response_body = self._sendRequest(url, operation_json)
if response_body is not None:
if "errorCode" in response_body:
Log("ERROR", "Error deleting entity")
Log("ERROR", response_body["errorCode"]["details"])
elif "orionError" in response_body:
Log("ERROR", "Error deleting entity")
Log("ERROR", response_body["orionError"]["details"])
else:
Log("INFO", "Deleted entity " + namespace)
if removeContext:
deleteContext(namespace, True)
def disconnect(self, namespace, delete=False):
## \brief Delete subscription by namespace
# \param entity name
# \param flag to indicate if the subscription must be deleted locally (False by default)
if namespace in self.subscriptions:
deleteContext(namespace, True)
subscription = self.subscriptions[namespace]
subscriptionId = subscription["id"]
Log(
"INFO",
"\nDisconnecting Context Broker subscription {}".format(
subscriptionId))
url = "http://{}:{}/NGSI10/unsubscribeContext".format(
DATA_CONTEXTBROKER["ADDRESS"], DATA_CONTEXTBROKER["PORT"])
disconnect_json = json.dumps({"subscriptionId": subscriptionId})
response_body = self._sendRequest(url, disconnect_json)
if response_body is not None:
if int(response_body["statusCode"]["code"]) >= 400:
Log(
"ERROR",
"Error Disconnecting from Context Broker (subscription: {}):"
.format(subscriptionId))
Log("ERROR", response_body["statusCode"]["reasonPhrase"])
Log("INFO", "\n")
else:
Log(
"INFO",
"Disconnected subscription {} from Context Broker ".
format(subscriptionId))
Log("INFO", "Deleting entity")
self.deleteEntity(subscription["namespace"],
subscription["data_type"])
Log("INFO", "\n")
if delete:
del self.subscriptions[namespace]