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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/feature_list.h"
#include "base/memory/ref_counted.h"
#include "base/strings/string_piece.h"
#include "components/reporting/proto/synced/record.pb.h"
#include "components/reporting/util/statusor.h"
#ifndef COMPONENTS_REPORTING_COMPRESSION_DECOMPRESSION_H_
#define COMPONENTS_REPORTING_COMPRESSION_DECOMPRESSION_H_
namespace reporting {
class Decompression : public base::RefCountedThreadSafe<Decompression> {
public:
// Not copyable or movable
Decompression(const Decompression& other) = delete;
Decompression& operator=(const Decompression& other) = delete;
// Factory method creates |Decompression| object.
static scoped_refptr<Decompression> Create();
// DecompressRecord will decompress the provided |record| and respond
// with the callback. The compression_information provided will determine
// which compression algorithm is used. On success the returned std::string
// sink will contain a decompressed EncryptedWrappedRecord string. The sink
// string then can be further updated by the caller. std::string is used
// instead of base::StringPiece because ownership is taken of |record| through
// std::move(record).
[[nodiscard]] static std::string DecompressRecord(
std::string record,
CompressionInformation compression_information);
protected:
// Constructor can only be called by |Create| factory method.
Decompression();
// Refcounted object must have destructor declared protected or private.
virtual ~Decompression();
private:
friend base::RefCountedThreadSafe<Decompression>;
};
} // namespace reporting
#endif // COMPONENTS_REPORTING_COMPRESSION_DECOMPRESSION_H_
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