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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.
*/
#ifndef ORC_CONVERT_COLUMN_READER_HH
#define ORC_CONVERT_COLUMN_READER_HH
#include "ColumnReader.hh"
#include "SchemaEvolution.hh"
namespace orc {
class ConvertColumnReader : public ColumnReader {
public:
ConvertColumnReader(const Type& readType, const Type& fileType, StripeStreams& stripe,
bool throwOnOverflow);
// override next() to implement convert logic
void next(ColumnVectorBatch& rowBatch, uint64_t numValues, char* notNull) override;
uint64_t skip(uint64_t numValues) override;
void seekToRowGroup(std::unordered_map<uint64_t, PositionProvider>& positions) override;
protected:
bool useTightNumericVector;
const Type& readType;
std::unique_ptr<ColumnReader> reader;
std::unique_ptr<ColumnVectorBatch> data;
const bool throwOnOverflow;
};
std::unique_ptr<ColumnReader> buildConvertReader(const Type& fileType, StripeStreams& stripe,
bool useTightNumericVector,
bool throwOnOverflow);
} // namespace orc
#endif // ORC_CONVERT_COLUMN_READER_HH
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