| # 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. |
| |
| # distutils: language = c++ |
| |
| from pyarrow.includes.common cimport * |
| from pyarrow.includes.libarrow cimport CSchema, CStatus, CTable, MemoryPool |
| from pyarrow.includes.libarrow_io cimport RandomAccessFile |
| |
| |
| cdef extern from "parquet/api/schema.h" namespace "parquet::schema" nogil: |
| cdef cppclass Node: |
| pass |
| |
| cdef cppclass GroupNode(Node): |
| pass |
| |
| cdef cppclass PrimitiveNode(Node): |
| pass |
| |
| cdef extern from "parquet/api/schema.h" namespace "parquet" nogil: |
| enum ParquetVersion" parquet::ParquetVersion::type": |
| PARQUET_1_0" parquet::ParquetVersion::PARQUET_1_0" |
| PARQUET_2_0" parquet::ParquetVersion::PARQUET_2_0" |
| |
| cdef cppclass SchemaDescriptor: |
| shared_ptr[Node] schema() |
| GroupNode* group() |
| |
| cdef cppclass ColumnDescriptor: |
| pass |
| |
| cdef extern from "parquet/api/reader.h" namespace "parquet" nogil: |
| cdef cppclass ColumnReader: |
| pass |
| |
| cdef cppclass BoolReader(ColumnReader): |
| pass |
| |
| cdef cppclass Int32Reader(ColumnReader): |
| pass |
| |
| cdef cppclass Int64Reader(ColumnReader): |
| pass |
| |
| cdef cppclass Int96Reader(ColumnReader): |
| pass |
| |
| cdef cppclass FloatReader(ColumnReader): |
| pass |
| |
| cdef cppclass DoubleReader(ColumnReader): |
| pass |
| |
| cdef cppclass ByteArrayReader(ColumnReader): |
| pass |
| |
| cdef cppclass RowGroupReader: |
| pass |
| |
| cdef cppclass ParquetFileReader: |
| # TODO: Some default arguments are missing |
| @staticmethod |
| unique_ptr[ParquetFileReader] OpenFile(const c_string& path) |
| |
| cdef extern from "parquet/api/writer.h" namespace "parquet" nogil: |
| cdef cppclass OutputStream: |
| pass |
| |
| cdef cppclass LocalFileOutputStream(OutputStream): |
| LocalFileOutputStream(const c_string& path) |
| void Close() |
| |
| cdef cppclass WriterProperties: |
| cppclass Builder: |
| Builder* version(ParquetVersion version) |
| shared_ptr[WriterProperties] build() |
| |
| |
| cdef extern from "arrow/parquet/io.h" namespace "arrow::parquet" nogil: |
| cdef cppclass ParquetAllocator: |
| ParquetAllocator() |
| ParquetAllocator(MemoryPool* pool) |
| MemoryPool* pool() |
| void set_pool(MemoryPool* pool) |
| |
| cdef cppclass ParquetReadSource: |
| ParquetReadSource(ParquetAllocator* allocator) |
| Open(const shared_ptr[RandomAccessFile]& file) |
| |
| |
| cdef extern from "arrow/parquet/reader.h" namespace "arrow::parquet" nogil: |
| CStatus OpenFile(const shared_ptr[RandomAccessFile]& file, |
| ParquetAllocator* allocator, |
| unique_ptr[FileReader]* reader) |
| |
| cdef cppclass FileReader: |
| FileReader(MemoryPool* pool, unique_ptr[ParquetFileReader] reader) |
| CStatus ReadFlatTable(shared_ptr[CTable]* out); |
| |
| |
| cdef extern from "arrow/parquet/schema.h" namespace "arrow::parquet" nogil: |
| CStatus FromParquetSchema(const SchemaDescriptor* parquet_schema, |
| shared_ptr[CSchema]* out) |
| CStatus ToParquetSchema(const CSchema* arrow_schema, |
| shared_ptr[SchemaDescriptor]* out) |
| |
| |
| cdef extern from "arrow/parquet/writer.h" namespace "arrow::parquet" nogil: |
| cdef CStatus WriteFlatTable(const CTable* table, MemoryPool* pool, |
| const shared_ptr[OutputStream]& sink, int64_t chunk_size, |
| const shared_ptr[WriterProperties]& properties) |