1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
# Copyright DataStax, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Module containing the definitions and declarations (parsing.pxd) for parsers.
"""
cdef class ParseDesc:
"""Description of what structure to parse"""
def __init__(self, colnames, coltypes, deserializers, protocol_version):
self.colnames = colnames
self.coltypes = coltypes
self.deserializers = deserializers
self.protocol_version = protocol_version
self.rowsize = len(colnames)
cdef class ColumnParser:
"""Decode a ResultMessage into a set of columns"""
cpdef parse_rows(self, BytesIOReader reader, ParseDesc desc):
raise NotImplementedError
cdef class RowParser:
"""Parser for a single row"""
cpdef unpack_row(self, BytesIOReader reader, ParseDesc desc):
"""
Unpack a single row of data in a ResultMessage.
"""
raise NotImplementedError
|
