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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 <utility>
#include "file/random_access_file_reader.h"
#include "rocksdb/slice.h"
#include "rocksdb/status.h"
#include "utilities/blob_db/blob_log_format.h"
namespace ROCKSDB_NAMESPACE {
namespace blob_db {
class BlobDumpTool {
public:
enum class DisplayType {
kNone,
kRaw,
kHex,
kDetail,
};
BlobDumpTool();
Status Run(const std::string& filename, DisplayType show_key,
DisplayType show_blob, DisplayType show_uncompressed_blob,
bool show_summary);
private:
std::unique_ptr<RandomAccessFileReader> reader_;
std::unique_ptr<char[]> buffer_;
size_t buffer_size_;
Status Read(uint64_t offset, size_t size, Slice* result);
Status DumpBlobLogHeader(uint64_t* offset, CompressionType* compression);
Status DumpBlobLogFooter(uint64_t file_size, uint64_t* footer_offset);
Status DumpRecord(DisplayType show_key, DisplayType show_blob,
DisplayType show_uncompressed_blob, bool show_summary,
CompressionType compression, uint64_t* offset,
uint64_t* total_records, uint64_t* total_key_size,
uint64_t* total_blob_size,
uint64_t* total_uncompressed_blob_size);
void DumpSlice(const Slice s, DisplayType type);
template <class T>
std::string GetString(std::pair<T, T> p);
};
} // namespace blob_db
} // namespace ROCKSDB_NAMESPACE
#endif // ROCKSDB_LITE
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