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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#pragma once
#ifndef ROCKSDB_LITE
#include <memory>
#include <string>
#include "db/dbformat.h"
#include "file/writable_file_writer.h"
#include "options/cf_options.h"
#include "rocksdb/advanced_options.h"
namespace ROCKSDB_NAMESPACE {
class SstFileDumper {
public:
explicit SstFileDumper(const Options& options, const std::string& file_name,
Temperature file_temp, size_t readahead_size,
bool verify_checksum, bool output_hex,
bool decode_blob_index,
const EnvOptions& soptions = EnvOptions(),
bool silent = false);
Status ReadSequential(bool print_kv, uint64_t read_num, bool has_from,
const std::string& from_key, bool has_to,
const std::string& to_key,
bool use_from_as_prefix = false);
Status ReadTableProperties(
std::shared_ptr<const TableProperties>* table_properties);
uint64_t GetReadNumber() { return read_num_; }
TableProperties* GetInitTableProperties() { return table_properties_.get(); }
Status VerifyChecksum();
Status DumpTable(const std::string& out_filename);
Status getStatus() { return init_result_; }
Status ShowAllCompressionSizes(
size_t block_size,
const std::vector<std::pair<CompressionType, const char*>>&
compression_types,
int32_t compress_level_from, int32_t compress_level_to,
uint32_t max_dict_bytes, uint32_t zstd_max_train_bytes,
uint64_t max_dict_buffer_bytes, bool use_zstd_dict_trainer);
Status ShowCompressionSize(size_t block_size, CompressionType compress_type,
const CompressionOptions& compress_opt);
private:
// Get the TableReader implementation for the sst file
Status GetTableReader(const std::string& file_path);
Status ReadTableProperties(uint64_t table_magic_number,
RandomAccessFileReader* file, uint64_t file_size,
FilePrefetchBuffer* prefetch_buffer);
Status CalculateCompressedTableSize(const TableBuilderOptions& tb_options,
size_t block_size,
uint64_t* num_data_blocks,
uint64_t* compressed_table_size);
Status SetTableOptionsByMagicNumber(uint64_t table_magic_number);
Status SetOldTableOptions();
// Helper function to call the factory with settings specific to the
// factory implementation
Status NewTableReader(const ImmutableOptions& ioptions,
const EnvOptions& soptions,
const InternalKeyComparator& internal_comparator,
uint64_t file_size,
std::unique_ptr<TableReader>* table_reader);
std::string file_name_;
uint64_t read_num_;
Temperature file_temp_;
bool output_hex_;
bool decode_blob_index_;
EnvOptions soptions_;
// less verbose in stdout/stderr
bool silent_;
// options_ and internal_comparator_ will also be used in
// ReadSequential internally (specifically, seek-related operations)
Options options_;
Status init_result_;
std::unique_ptr<TableReader> table_reader_;
std::unique_ptr<RandomAccessFileReader> file_;
const ImmutableOptions ioptions_;
const MutableCFOptions moptions_;
ReadOptions read_options_;
InternalKeyComparator internal_comparator_;
std::unique_ptr<TableProperties> table_properties_;
};
} // namespace ROCKSDB_NAMESPACE
#endif // ROCKSDB_LITE
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