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// 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.
#include "parquet/column_scanner.h"
#include <cstdint>
#include <memory>
#include "parquet/column_reader.h"
using arrow::MemoryPool;
namespace parquet {
std::shared_ptr<Scanner> Scanner::Make(std::shared_ptr<ColumnReader> col_reader,
int64_t batch_size, MemoryPool* pool) {
switch (col_reader->type()) {
case Type::BOOLEAN:
return std::make_shared<BoolScanner>(std::move(col_reader), batch_size, pool);
case Type::INT32:
return std::make_shared<Int32Scanner>(std::move(col_reader), batch_size, pool);
case Type::INT64:
return std::make_shared<Int64Scanner>(std::move(col_reader), batch_size, pool);
case Type::INT96:
return std::make_shared<Int96Scanner>(std::move(col_reader), batch_size, pool);
case Type::FLOAT:
return std::make_shared<FloatScanner>(std::move(col_reader), batch_size, pool);
case Type::DOUBLE:
return std::make_shared<DoubleScanner>(std::move(col_reader), batch_size, pool);
case Type::BYTE_ARRAY:
return std::make_shared<ByteArrayScanner>(std::move(col_reader), batch_size, pool);
case Type::FIXED_LEN_BYTE_ARRAY:
return std::make_shared<FixedLenByteArrayScanner>(std::move(col_reader), batch_size,
pool);
default:
ParquetException::NYI("type reader not implemented");
}
// Unreachable code, but suppress compiler warning
return std::shared_ptr<Scanner>(nullptr);
}
int64_t ScanAllValues(int32_t batch_size, int16_t* def_levels, int16_t* rep_levels,
uint8_t* values, int64_t* values_buffered,
parquet::ColumnReader* reader) {
switch (reader->type()) {
case parquet::Type::BOOLEAN:
return ScanAll<parquet::BoolReader>(batch_size, def_levels, rep_levels, values,
values_buffered, reader);
case parquet::Type::INT32:
return ScanAll<parquet::Int32Reader>(batch_size, def_levels, rep_levels, values,
values_buffered, reader);
case parquet::Type::INT64:
return ScanAll<parquet::Int64Reader>(batch_size, def_levels, rep_levels, values,
values_buffered, reader);
case parquet::Type::INT96:
return ScanAll<parquet::Int96Reader>(batch_size, def_levels, rep_levels, values,
values_buffered, reader);
case parquet::Type::FLOAT:
return ScanAll<parquet::FloatReader>(batch_size, def_levels, rep_levels, values,
values_buffered, reader);
case parquet::Type::DOUBLE:
return ScanAll<parquet::DoubleReader>(batch_size, def_levels, rep_levels, values,
values_buffered, reader);
case parquet::Type::BYTE_ARRAY:
return ScanAll<parquet::ByteArrayReader>(batch_size, def_levels, rep_levels, values,
values_buffered, reader);
case parquet::Type::FIXED_LEN_BYTE_ARRAY:
return ScanAll<parquet::FixedLenByteArrayReader>(batch_size, def_levels, rep_levels,
values, values_buffered, reader);
default:
parquet::ParquetException::NYI("type reader not implemented");
}
// Unreachable code, but suppress compiler warning
return 0;
}
} // namespace parquet
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