161 lines
3.5 KiB
Python
161 lines
3.5 KiB
Python
#!/usr/bin/env python
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# Copyright (c) 2015-2016 Freescale Semiconductor, Inc.
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# Copyright 2016-2017 NXP
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# All rights reserved.
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#
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# SPDX-License-Identifier: BSD-3-Clause
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from enum import Enum
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from collections import namedtuple
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class MessageType(Enum):
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kInvocationMessage = 0
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kOnewayMessage = 1
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kReplyMessage = 2
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kNotificationMessage = 3
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MessageInfo = namedtuple(
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'MessageInfo', ['type', 'service', 'request', 'sequence'])
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class CodecError(RuntimeError):
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pass
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class Codec(object):
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def __init__(self):
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self.reset()
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@property
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def buffer(self):
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return self._buffer
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@buffer.setter
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def buffer(self, buf):
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self._buffer = buf
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self._cursor = 0
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def reset(self):
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self._buffer = bytearray()
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self._cursor = 0
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def start_write_message(self, msgInfo):
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raise NotImplementedError()
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def write_bool(self, value):
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raise NotImplementedError()
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def write_int8(self, value):
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raise NotImplementedError()
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def write_int16(self, value):
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raise NotImplementedError()
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def write_int32(self, value):
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raise NotImplementedError()
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def write_int64(self, value):
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raise NotImplementedError()
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def write_uint8(self, value):
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raise NotImplementedError()
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def write_uint16(self, value):
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raise NotImplementedError()
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def write_uint32(self, value):
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raise NotImplementedError()
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def write_uint64(self, value):
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raise NotImplementedError()
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def write_float(self, value):
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raise NotImplementedError()
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def write_double(self, value):
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raise NotImplementedError()
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def write_string(self, value):
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raise NotImplementedError()
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def write_binary(self, value):
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raise NotImplementedError()
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def start_write_list(self, length):
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raise NotImplementedError()
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def start_write_union(self, discriminator):
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raise NotImplementedError()
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def write_null_flag(self, flag):
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raise NotImplementedError()
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def start_read_message(self):
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""" Returns MessageInfo object.
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Returns:
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MessageInfo: MessageInfo object.
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"""
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raise NotImplementedError()
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def read_bool(self):
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raise NotImplementedError()
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def read_int8(self):
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raise NotImplementedError()
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def read_int16(self):
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raise NotImplementedError()
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def read_int32(self):
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raise NotImplementedError()
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def read_int64(self):
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raise NotImplementedError()
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def read_uint8(self):
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raise NotImplementedError()
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def read_uint16(self):
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raise NotImplementedError()
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def read_uint32(self):
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raise NotImplementedError()
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def read_uint64(self):
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raise NotImplementedError()
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def read_float(self):
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raise NotImplementedError()
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def read_double(self):
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raise NotImplementedError()
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def read_string(self):
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raise NotImplementedError()
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def read_binary(self):
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raise NotImplementedError()
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def start_read_list(self):
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""" Function which should be called on list de-serialization.
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Returns:
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int: Int of list length.
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"""
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raise NotImplementedError()
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def start_read_union(self):
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""" Function which should be called on union de-serialization.
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Returns:
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int: Int of union discriminator.
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"""
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raise NotImplementedError()
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def read_null_flag(self):
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raise NotImplementedError()
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