def send_response(self, result, exc_info):
error = None
if exc_info is not None:
error = serialize(exc_info[1])
# disaster avoidance serialization check: `result` must be
# serializable, otherwise the container will commit suicide assuming
# unrecoverable errors (and the message will be requeued for another
# victim)
try:
kombu.serialization.dumps(result, self.serializer)
except Exception:
exc_info = sys.exc_info()
# `error` below is guaranteed to serialize to json
error = serialize(UnserializableValueError(result))
result = None
payload = {'result': result, 'error': error}
routing_key = self.message.properties['reply_to']
correlation_id = self.message.properties.get('correlation_id')
publisher = self.publisher_cls(self.amqp_uri,
ssl_params=self.ssl_params)
publisher.publish(payload,
serializer=self.serializer,
exchange=self.exchange,
routing_key=routing_key,
correlation_id=correlation_id)
return result, exc_info
def test_unserializable_value_error():
# normal value
value = "value"
exc = UnserializableValueError(value)
assert exc.repr_value == "'value'"
assert str(exc) == "Unserializable value: `'value'`"
# un-repr-able value
class CannotRepr(object):
def __repr__(self):
raise Exception('boom')
bad_value = CannotRepr()
exc = UnserializableValueError(bad_value)
assert exc.repr_value == "[__repr__ failed]"
assert str(exc) == "Unserializable value: `[__repr__ failed]`"
def send_response(self, result, exc_info, **kwargs):
error = None
if exc_info is not None:
error = serialize(exc_info[1])
# disaster avoidance serialization check: `result` must be
# serializable, otherwise the container will commit suicide assuming
# unrecoverable errors (and the message will be requeued for another
# victim)
serializer = self.config.get(SERIALIZER_CONFIG_KEY, DEFAULT_SERIALIZER)
try:
kombu.serialization.dumps(result, serializer)
except Exception:
exc_info = sys.exc_info()
# `error` below is guaranteed to serialize to json
error = serialize(UnserializableValueError(result))
result = None
conn = Connection(self.config[AMQP_URI_CONFIG_KEY])
exchange = get_rpc_exchange(self.config)
retry = kwargs.pop('retry', True)
retry_policy = kwargs.pop('retry_policy', DEFAULT_RETRY_POLICY)
with producers[conn].acquire(block=True) as producer:
routing_key = self.message.properties['reply_to']
correlation_id = self.message.properties.get('correlation_id')
msg = {'result': result, 'error': error}
_log.debug('publish response %s:%s', routing_key, correlation_id)
producer.publish(msg,
retry=retry,
retry_policy=retry_policy,
exchange=exchange,
routing_key=routing_key,
serializer=serializer,
correlation_id=correlation_id,
**kwargs)
return result, exc_info
def send_response(self, result, exc_info, **kwargs):
error = None
if exc_info is not None:
error = serialize(exc_info[1])
# disaster avoidance serialization check: `result` must be
# serializable, otherwise the container will commit suicide assuming
# unrecoverable errors (and the message will be requeued for another
# victim)
try:
kombu.serialization.dumps(result, self.serializer)
except Exception:
exc_info = sys.exc_info()
# `error` below is guaranteed to serialize to json
error = serialize(UnserializableValueError(result))
result = None
exchange = get_rpc_exchange(self.config)
retry = kwargs.pop('retry', self.retry)
retry_policy = kwargs.pop('retry_policy', self.retry_policy)
with get_producer(self.amqp_uri, self.use_confirms) as producer:
routing_key = self.message.properties['reply_to']
correlation_id = self.message.properties.get('correlation_id')
msg = {'result': result, 'error': error}
_log.debug('publish response %s:%s', routing_key, correlation_id)
producer.publish(msg,
retry=retry,
retry_policy=retry_policy,
exchange=exchange,
routing_key=routing_key,
serializer=self.serializer,
correlation_id=correlation_id,
**kwargs)
return result, exc_info
def send_response(self, result, exc_info, **kwargs):
error = None
if exc_info is not None:
error = serialize(exc_info[1])
logger.warning("Sending error response %s", error)
serializer = self.config.get(SERIALIZER_CONFIG_KEY, DEFAULT_SERIALIZER)
try:
kombu.serialization.dumps(result, serializer)
except Exception:
exc_info = sys.exc_info()
error = serialize(UnserializableValueError(result))
result = None
conn = Connection(self.config[AMQP_URI_CONFIG_KEY])
exchange = DEFAULT_EXCHANGE
retry = kwargs.pop('retry', True)
retry_policy = kwargs.pop('retry_policy', DEFAULT_RETRY_POLICY)
with producers[conn].acquire(block=True) as producer:
routing_key = self.message.properties['reply_to']
correlation_id = self.message.properties.get('correlation_id')
msg = {'result': result, 'error': error}
logger.info("Sending message to %s %s: %s", exchange, routing_key,
msg)
producer.publish(msg,
retry=retry,
retry_policy=retry_policy,
exchange=exchange,
routing_key=routing_key,
serializer=serializer,
correlation_id=correlation_id,
**kwargs)
return result, exc_info