def handshake(sock, cnxn_id, req_id):
"""Performs the initial handshake operation with the topology server"""
sock.send(utils.encode_delimited(_handshake_msg(cnxn_id, req_id).SerializeToString()))
response = topology_api_pb2.Response()
try:
response.ParseFromString(utils.get_answer(sock))
except socket.timeout:
issue = "Timed out receiving Handshake protobuf response"
LOG.exception(issue)
raise TopologyError(issue)
except PBDecodeError:
issue = "Failed to parse Handshake protobuf response"
LOG.exception(issue)
raise TopologyError(issue)
if response.type != topology_api_pb2.ResponseType.Value("ACK"):
raise HandshakeError(
"Failed to handshake with the topology API. Got response %s" % utils.proto_to_dict(response)
)
def get(sock, kind, obj_uuid, req_id=None):
"""Returns a Protobuf Response object for a Request.Get command"""
if req_id is None:
req_id = uuid.uuid4()
get = _get_msg(req_id, kind, obj_uuid)
sock.send(utils.encode_delimited(get.SerializeToString()))
response = topology_api_pb2.Response()
try:
response.ParseFromString(utils.get_answer(sock))
except socket.timeout:
issue = "Timed out receiving Get protobuf response"
LOG.exception(issue)
raise TopologyError(issue)
except PBDecodeError:
issue = "Failed to parse Get protobuf response"
LOG.exception(issue)
raise TopologyError(issue)
return response
def get(sock, kind, obj_uuid, req_id=None):
"""Returns a Protobuf Response object for a Request.Get command"""
if req_id is None:
req_id = uuid.uuid4()
get = _get_msg(req_id, kind, obj_uuid)
sock.send(utils.encode_delimited(get.SerializeToString()))
response = topology_api_pb2.Response()
try:
response.ParseFromString(utils.get_answer(sock))
except socket.timeout:
issue = 'Timed out receiving Get protobuf response'
LOG.exception(issue)
raise TopologyError(issue)
except PBDecodeError:
issue = 'Failed to parse Get protobuf response'
LOG.exception(issue)
raise TopologyError(issue)
return response
def handshake(sock, cnxn_id, req_id):
"""Performs the initial handshake operation with the topology server"""
sock.send(
utils.encode_delimited(
_handshake_msg(cnxn_id, req_id).SerializeToString()))
response = topology_api_pb2.Response()
try:
response.ParseFromString(utils.get_answer(sock))
except socket.timeout:
issue = 'Timed out receiving Handshake protobuf response'
LOG.exception(issue)
raise TopologyError(issue)
except PBDecodeError:
issue = 'Failed to parse Handshake protobuf response'
LOG.exception(issue)
raise TopologyError(issue)
if response.type != topology_api_pb2.ResponseType.Value('ACK'):
raise HandshakeError(
'Failed to handshake with the topology API. Got response %s' %
utils.proto_to_dict(response))