Python struct_class示例

示例#1

HANDSHAKE_REQUESTOR_WRITER = io.DatumWriter(HANDSHAKE_REQUEST_SCHEMA)
HANDSHAKE_REQUESTOR_READER = io.DatumReader(HANDSHAKE_RESPONSE_SCHEMA)
HANDSHAKE_RESPONDER_WRITER = io.DatumWriter(HANDSHAKE_RESPONSE_SCHEMA)
HANDSHAKE_RESPONDER_READER = io.DatumReader(HANDSHAKE_REQUEST_SCHEMA)

META_SCHEMA = schema.parse('{"type": "map", "values": "bytes"}')
META_WRITER = io.DatumWriter(META_SCHEMA)
META_READER = io.DatumReader(META_SCHEMA)

SYSTEM_ERROR_SCHEMA = schema.parse('["string"]')

# protocol cache
REMOTE_HASHES = {}
REMOTE_PROTOCOLS = {}

BIG_ENDIAN_INT_STRUCT = io.struct_class('!I')
BUFFER_HEADER_LENGTH = 4
BUFFER_SIZE = 8192

#
# Exceptions
#


class AvroRemoteException(schema.AvroException):
    """
  Raised when an error message is sent by an Avro requestor or responder.
  """
    def __init__(self, fail_msg=None):
        schema.AvroException.__init__(self, fail_msg)

示例#2

文件： ipc.py 项目： AlexChen12/avro

HANDSHAKE_REQUESTOR_WRITER = io.DatumWriter(HANDSHAKE_REQUEST_SCHEMA)
HANDSHAKE_REQUESTOR_READER = io.DatumReader(HANDSHAKE_RESPONSE_SCHEMA)
HANDSHAKE_RESPONDER_WRITER = io.DatumWriter(HANDSHAKE_RESPONSE_SCHEMA)
HANDSHAKE_RESPONDER_READER = io.DatumReader(HANDSHAKE_REQUEST_SCHEMA)

META_SCHEMA = schema.parse('{"type": "map", "values": "bytes"}')
META_WRITER = io.DatumWriter(META_SCHEMA)
META_READER = io.DatumReader(META_SCHEMA)

SYSTEM_ERROR_SCHEMA = schema.parse('["string"]')

# protocol cache
REMOTE_HASHES = {}
REMOTE_PROTOCOLS = {}

BIG_ENDIAN_INT_STRUCT = io.struct_class('!I')
BUFFER_HEADER_LENGTH = 4
BUFFER_SIZE = 8192

#
# Exceptions
#

class AvroRemoteException(schema.AvroException):
  """
  Raised when an error message is sent by an Avro requestor or responder.
  """
  def __init__(self, fail_msg=None):
    schema.AvroException.__init__(self, fail_msg)

class ConnectionClosedException(schema.AvroException):