def test_next_sequence_number(self):
with self.app.app_context():
subscriber_id = self.service.create({})
sequence_number1 = get_next_sequence_number(
resource_name=self.resource_name,
item_id=subscriber_id,
max_seq_number=self.max_seq_number,
min_seq_number=self.min_seq_number
)
sequence_number2 = get_next_sequence_number(
resource_name=self.resource_name,
item_id=subscriber_id,
max_seq_number=self.max_seq_number,
min_seq_number=self.min_seq_number
)
self.assertEqual(sequence_number1 + 1, sequence_number2)
def test_rotate_sequence_number(self):
with self.app.app_context():
subscriber_id = self.service.create({})
for i in range(self.max_seq_number + 1):
last_sequence_number = get_next_sequence_number(
resource_name=self.resource_name,
item_id=subscriber_id,
max_seq_number=self.max_seq_number,
min_seq_number=self.min_seq_number
)
self.assertEqual(last_sequence_number, self.max_seq_number)
last_sequence_number = get_next_sequence_number(
resource_name=self.resource_name,
item_id=subscriber_id,
max_seq_number=self.max_seq_number,
min_seq_number=self.min_seq_number
)
self.assertEqual(last_sequence_number, self.min_seq_number)
def set_ingest_provider_sequence(self, item, provider):
"""
Sets the value of ingest_provider_sequence in item.
:param item: object to which ingest_provider_sequence to be set
:param provider: ingest_provider object, used to build the key name of sequence
"""
sequence_number = get_next_sequence_number(
resource_name='ingest_providers',
item_id=provider[config.ID_FIELD],
max_seq_number=app.config['MAX_VALUE_OF_INGEST_SEQUENCE']
)
item['ingest_provider_sequence'] = str(sequence_number)
def generate_sequence_number(self, subscriber):
"""
Generates Published Sequence Number for the passed subscriber
"""
assert (subscriber is not None), "Subscriber can't be null"
min_seq_number = 0
max_seq_number = app.config['MAX_VALUE_OF_PUBLISH_SEQUENCE']
if subscriber.get('sequence_num_settings'):
min_seq_number = subscriber['sequence_num_settings']['min']
max_seq_number = subscriber['sequence_num_settings']['max']
return get_next_sequence_number(
resource_name='subscribers',
item_id=subscriber[config.ID_FIELD],
max_seq_number=max_seq_number,
min_seq_number=min_seq_number
)