def decode_consumer_metadata_response(cls, data):
"""
Decode bytes to a ConsumerMetadataResponse
Arguments:
data: bytes to decode
"""
((correlation_id, error, nodeId), cur) = relative_unpack('>ihi', data, 0)
(host, cur) = read_short_string(data, cur)
((port,), cur) = relative_unpack('>i', data, cur)
return ConsumerMetadataResponse(error, nodeId, host, port)
def test_decode_consumer_metadata_response(self):
encoded = b"".join([
struct.pack(">i", 42), # Correlation ID
struct.pack(">h", 0), # No Error
struct.pack(">i", 1), # Broker ID
struct.pack(">h23s", 23, b"brokers1.kafka.rdio.com"), # Broker Host
struct.pack(">i", 1000), # Broker Port
])
results = KafkaProtocol.decode_consumer_metadata_response(encoded)
self.assertEqual(results,
ConsumerMetadataResponse(error = 0, nodeId = 1, host = b'brokers1.kafka.rdio.com', port = 1000)
)
def decode_consumer_metadata_response(cls, response):
"""
Decode GroupCoordinatorResponse. Note that ConsumerMetadataResponse is
renamed to GroupCoordinatorResponse in 0.9+
Arguments:
response: response to decode
"""
return ConsumerMetadataResponse(
response.error_code,
response.coordinator_id,
response.host,
response.port,
)