def update_queue_information(self, queue_data):
if not 'messages' in queue_data:
# FIXME: We should do something here, probably delete the queue,
# as it's in a weird state. More investigation is required.
# See bug 1066338.
return None
q_size, q_name, q_durable = (queue_data['messages'],
queue_data['name'], queue_data['durable'])
queue = Queue.query.filter(Queue.name == q_name).first()
# If the queue doesn't exist in the db, create it.
if queue is None:
m = re.match('queue/([^/]+)/', q_name)
logging.info("New queue '{0}' encountered. "
"Adding to the database.".format(q_name))
if m:
owner_name = m.group(1)
owner = PulseUser.query.filter(
PulseUser.username == owner_name).first()
# If the queue was created by a user that isn't in the
# pulseguardian database, skip the queue.
if owner is None:
logging.info(
"Queue '{0}' owner, {1}, isn't in the db. Creating "
"the user.".format(q_name, owner_name))
owner = PulseUser.new_user(owner_name)
# Assign the user to the queue.
logging.info("Assigning queue '{0}' to user "
"{1}.".format(q_name, owner))
else:
logging.warn(
"'{0}' is not a standard queue name.".format(q_name))
owner = None
queue = Queue(name=q_name, owner=owner)
# add the queue bindings to the db.
bindings = pulse_management.queue_bindings(config.rabbit_vhost,
queue.name)
for binding in bindings:
db_binding = Binding.query.filter(
Binding.exchange == binding["source"],
Binding.routing_key == binding["routing_key"],
Binding.queue_name == queue.name).first()
if not db_binding:
# need to create the binding in the DB
binding = Binding(exchange=binding["source"],
routing_key=binding["routing_key"],
queue_name=queue.name)
db_session.add(binding)
# Update the saved queue size.
queue.size = q_size
queue.durable = q_durable
db_session.add(queue)
db_session.commit()
return queue
def bindings_listing(queue_name):
queue = Queue.query.get(queue_name)
bindings = []
if queue:
bindings = pulse_management.queue_bindings(vhost=config.rabbit_vhost,
queue=queue.name)
return jsonify({"queue_name": queue_name, "bindings": bindings})
def test_bindings(exp_routing_keys):
queues = Queue.query.all()
self.assertEqual(len(queues), 1)
self.assertEqual(len(queues[0].bindings), len(exp_routing_keys))
db_queue = queues[0]
mgmt_bindings = pulse_management.queue_bindings('/', db_queue.name)
mgmt_routing_keys = {x["routing_key"] for x in mgmt_bindings}
self.assertEqual(mgmt_routing_keys, exp_routing_keys)
db_routing_keys = {x.routing_key for x in db_queue.bindings}
self.assertEqual(db_routing_keys, exp_routing_keys)
def test_bindings(exp_routing_keys):
queues = Queue.query.all()
self.assertEqual(len(queues), 1)
self.assertEqual(len(queues[0].bindings), len(exp_routing_keys))
db_queue = queues[0]
mgmt_bindings = pulse_management.queue_bindings('/', db_queue.name)
mgmt_routing_keys = {x["routing_key"] for x in mgmt_bindings}
self.assertEqual(mgmt_routing_keys, exp_routing_keys)
db_routing_keys = {x.routing_key for x in db_queue.bindings}
self.assertEqual(db_routing_keys, exp_routing_keys)
def clear_deleted_bindings(self, queue_name):
rabbit_bindings = pulse_management.queue_bindings(
config.rabbit_vhost, queue_name)
db_bindings = Binding.query.filter(Binding.queue_name == queue_name)
# Filter bindings that are in the database but no longer on RabbitMQ.
alive_bindings_names = {
Binding.as_string(b['source'], b['routing_key'])
for b in rabbit_bindings
}
deleted_bindings = {
b
for b in db_bindings if b.name not in alive_bindings_names
}
# Delete those bindings.
for binding in deleted_bindings:
logging.info(
"Binding '{}' for queue '{}' has been deleted.".format(
binding, queue_name))
db_session.delete(binding)
def bindings_listing(queue_name):
queue = Queue.query.get(queue_name)
bindings = []
if queue:
bindings = pulse_management.queue_bindings(vhost='/', queue=queue.name)
return jsonify({"queue_name": queue_name, "bindings": bindings})
