51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#pragma once
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#include <arrow/adapters/orc/adapter.h>
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#include <arrow/api.h>
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#include <arrow/buffer.h>
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#include <stdint.h>
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#include <map>
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#include <string>
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#include "common/status.h"
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#include "exec/arrow/arrow_reader.h"
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namespace doris {
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// Reader of orc file
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class ORCReaderWrap final : public ArrowReaderWrap {
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public:
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ORCReaderWrap(FileReader* file_reader, int64_t batch_size, int32_t num_of_columns_from_file);
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~ORCReaderWrap() override = default;
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Status init_reader(const std::vector<SlotDescriptor*>& tuple_slot_descs,
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const std::string& timezone) override;
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Status next_batch(std::shared_ptr<arrow::RecordBatch>* batch, bool* eof) override;
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private:
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Status _next_stripe_reader(bool* eof);
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private:
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// orc file reader object
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std::unique_ptr<arrow::adapters::orc::ORCFileReader> _reader;
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bool _cur_file_eof; // is read over?
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};
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} // namespace doris
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