トピックを介してクラウド内のサブスクリプションにメッセージを送信するために、Microsoft Azure をいじっています。しかし、Microsoft の python SDK で問題が発生しました。具体的には、クラウドからのメッセージを逆シリアル化するときに ValueError が発生しました。
これは私のコードです
bus_service = ServiceBusService(
service_namespace='"<namegoeshere>"',
shared_access_key_name='"<nameofkeygoeshere>"',
shared_access_key_value='"<keyvaluegoeshere>"')
bus_service.create_topic('topic')
bus_service.create_subscription('topic', 'AllMessages')
msg = Message("HelloWorld")
bus_service.send_topic_message('topic', msg)
// at this point I can see the message arrive in my Azure portal
// then it crashes when I try to retrieve the message I just sent
msg = bus_service.receive_subscription_message('topic', 'AllMessages', peek_lock=False)
print(msg.body)
これはエラーです:
Traceback (most recent call last):
File "C:/Users/user/PycharmProjects/test/helloworld.py", line 59, in <module>
msg = bus_service.receive_subscription_message('topic', 'AllMessages', peek_lock=False)
File "D:\Program Files\Anaconda2\lib\site-packages\azure\servicebus\servicebusservice.py", line 976, in receive_subscription_message
timeout)
File "D:\Program Files\Anaconda2\lib\site-packages\azure\servicebus\servicebusservice.py", line 764, in read_delete_subscription_message
return _create_message(response, self)
File "D:\Program Files\Anaconda2\lib\site-packages\azure\servicebus\_serialization.py", line 101, in _create_message
elif str(int(float(value))) == value:
ValueError: could not convert string to float: max-age=31536000
Process finished with exit code 1
私はクラスに入って見ました:
def _create_message(response, service_instance):
''' Create message from response.
response:
response from service bus cloud server.
service_instance:
the service bus client.
'''
respbody = response.body
custom_properties = {}
broker_properties = None
message_type = None
message_location = None
# gets all information from respheaders.
for name, value in response.headers:
if name.lower() == 'brokerproperties':
broker_properties = json.loads(value)
elif name.lower() == 'content-type':
message_type = value
elif name.lower() == 'location':
message_location = value
elif name.lower() not in ['content-type',
'brokerproperties',
'transfer-encoding',
'server',
'location',
'date']:
if '"' in value:
value = value[1:-1]
try:
custom_properties[name] = datetime.strptime(
value, '%a, %d %b %Y %H:%M:%S GMT')
except ValueError:
custom_properties[name] = value
else: # only int, float or boolean
if value.lower() == 'true':
custom_properties[name] = True
elif value.lower() == 'false':
custom_properties[name] = False
# int('3.1') doesn't work so need to get float('3.14') first
elif str(int(float(value))) == value: # <---- Exception !
custom_properties[name] = int(value)
else:
custom_properties[name] = float(value)
これを解決するために私ができることはありますか?