dianfu commented on a change in pull request #11718: [FLINK-17118][python] Support Primitive DataTypes in Cython URL: https://github.com/apache/flink/pull/11718#discussion_r407886997
########## File path: flink-python/pyflink/fn_execution/fast_coder_impl.pyx ########## @@ -0,0 +1,558 @@ +################################################################################ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you 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. +################################################################################ +# cython: language_level = 3 +# cython: infer_types = True +# cython: profile=True +# cython: boundscheck=False, wraparound=False, initializedcheck=False, cdivision=True + +cimport libc.stdlib +from libc.string cimport strlen + +import datetime + +cdef class WrapperFuncInputElement: + def __cinit__(self, func, wrapper_input_element): + self.func = func + self.wrapper_input_element = wrapper_input_element + +cdef class WrapperInputElement: + def __cinit__(self, input_stream): + self.input_stream = input_stream + +cdef class PassThroughLengthPrefixCoderImpl(StreamCoderImpl): + def __cinit__(self, value_coder): + self._value_coder = value_coder + + cpdef encode_to_stream(self, value, OutputStream out_stream, bint nested): + self._value_coder.encode_to_stream(value, out_stream, False) + + cpdef decode_from_stream(self, InputStream in_stream, bint nested): + return self._value_coder.decode_from_stream(in_stream, nested) + + cpdef get_estimated_size_and_observables(self, value, bint nested=False): + return 0, [] + +cdef class TableFunctionRowCoderImpl(StreamCoderImpl): + def __cinit__(self, flatten_row_coder): + self._flatten_row_coder = flatten_row_coder + + cpdef encode_to_stream(self, value, OutputStream out_stream, bint nested): + self._flatten_row_coder.encode_table_row_result(value, out_stream) + + cpdef decode_from_stream(self, InputStream in_stream, bint nested): + return self._flatten_row_coder.decode_from_stream(in_stream, nested) + +cdef class FlattenRowCoderImpl(StreamCoderImpl): + def __cinit__(self, field_coders): + self._output_field_coders = field_coders + self._output_field_count = len(self._output_field_coders) + self._output_field_type = <TypeName*> libc.stdlib.malloc( + self._output_field_count * sizeof(TypeName)) + self._output_coder_type = <CoderType*> libc.stdlib.malloc( + self._output_field_count * sizeof(CoderType)) + self._output_leading_complete_bytes_num = self._output_field_count // 8 + self._output_remaining_bits_num = self._output_field_count % 8 + self._output_row_buffer_size = 1024 + self._output_row_pos = 0 + self._output_row_data = <char*> libc.stdlib.malloc(self._output_row_buffer_size) + self._null_byte_search_table = <unsigned char*> libc.stdlib.malloc( + 8 * sizeof(unsigned char)) + self._init_attribute() + + cpdef decode_from_stream(self, InputStream in_stream, bint nested): + cdef WrapperInputElement wrapper_input_element Review comment: Rename to InputStreamWrapper? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services
