fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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75 lines
2.6 KiB
75 lines
2.6 KiB
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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#pragma once
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#ifndef ROCKSDB_LITE
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#include "rocksdb/sst_dump_tool.h"
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#include <memory>
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#include <string>
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#include "db/dbformat.h"
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#include "util/file_reader_writer.h"
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namespace rocksdb {
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class SstFileReader {
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public:
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explicit SstFileReader(const std::string& file_name, bool verify_checksum,
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bool output_hex);
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Status ReadSequential(bool print_kv, uint64_t read_num, bool has_from,
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const std::string& from_key, bool has_to,
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const std::string& to_key);
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Status ReadTableProperties(
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std::shared_ptr<const TableProperties>* table_properties);
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uint64_t GetReadNumber() { return read_num_; }
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TableProperties* GetInitTableProperties() { return table_properties_.get(); }
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Status DumpTable(const std::string& out_filename);
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Status getStatus() { return init_result_; }
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int ShowAllCompressionSizes(size_t block_size);
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private:
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// Get the TableReader implementation for the sst file
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Status GetTableReader(const std::string& file_path);
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Status ReadTableProperties(uint64_t table_magic_number,
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RandomAccessFileReader* file, uint64_t file_size);
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uint64_t CalculateCompressedTableSize(const TableBuilderOptions& tb_options,
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size_t block_size);
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Status SetTableOptionsByMagicNumber(uint64_t table_magic_number);
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Status SetOldTableOptions();
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// Helper function to call the factory with settings specific to the
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// factory implementation
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Status NewTableReader(const ImmutableCFOptions& ioptions,
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const EnvOptions& soptions,
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const InternalKeyComparator& internal_comparator,
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uint64_t file_size,
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unique_ptr<TableReader>* table_reader);
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std::string file_name_;
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uint64_t read_num_;
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bool verify_checksum_;
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bool output_hex_;
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EnvOptions soptions_;
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Status init_result_;
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unique_ptr<TableReader> table_reader_;
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unique_ptr<RandomAccessFileReader> file_;
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// options_ and internal_comparator_ will also be used in
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// ReadSequential internally (specifically, seek-related operations)
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Options options_;
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const ImmutableCFOptions ioptions_;
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InternalKeyComparator internal_comparator_;
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unique_ptr<TableProperties> table_properties_;
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};
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} // namespace rocksdb
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#endif // ROCKSDB_LITE
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