def connection_thread(url, results, hide_password=False):
from oslo_config import cfg
from oslo_messaging.transport import TransportURL
from pika import exceptions as pika_exceptions
from pika import URLParameters as PikaUrlParameters
from pika import BlockingConnection as PikaBlockingConnection
try:
parsed_url = TransportURL.parse(cfg.CONF, url)
if hide_password:
url = re.sub(':+[^:@]+@', ':******@', url)
except Exception as e:
results.append({'url': url, 'exception': e})
else:
test_url, driver = parse_test_url(parsed_url)
try:
if driver == 'kombu':
connection = Connection(test_url)
connection.connect()
connection.close()
elif driver == 'pika':
params = PikaUrlParameters(test_url)
params.socket_timeout = 5
conn = PikaBlockingConnection(params)
conn.close()
except (OSError, pika_exceptions.ConnectionClosed):
results.append({'url': url, 'exception': _('Url not reachable')})
except (AccessRefused, pika_exceptions.ProbableAuthenticationError):
results.append({
'url': url,
'exception': _('Credentials incorrect')
})
except Exception as e:
results.append({'url': url, 'exception': force_text(e)})
else:
results.append({'url': url})
def test_connection(host, port, user_id, password, virt_host, exchange_name,
queue_name):
"""
Test a connection to an exchange on a virtual host
"""
connection = None
connected = False
success = False
try:
# Connect to the virtual host - will raise exception if it fails.
connection = Connection(host, user_id, password, virt_host, port)
connection.connect()
connected = connection.connected
if connected:
# Check whether exchange exists - will raise exception if it fails.
exchange = Exchange(exchange_name,
channel=connection,
type='topic',
durable=False,
passive=True)
exchange.declare()
# Check whether the queue exists - will raise exception if it
# fails.
rpc_receive_queue = Queue(queue_name,
durable=True,
exchange=exchange,
channel=connection)
rpc_receive_queue.queue_declare(passive=True)
success = True
except Exception as e:
DLOG.info("Unable to connect to virt_host %s, exchange %s, error: %s" %
(virt_host, exchange_name, e))
finally:
if connected:
connection.close()
return success
