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#ifndef MOZC_SYNC_LEARNING_PREFERENCE_SYNC_UTIL_H_
#define MOZC_SYNC_LEARNING_PREFERENCE_SYNC_UTIL_H_
#include <string>
#include "base/base.h"
#include "sync/sync.pb.h"
namespace mozc {
class LRUStorage;
namespace sync {
class LearningPreferenceSyncUtil {
public:
// Create a local update from |storage| and save it |local_update|.
// All items, which should be synced to the cloud, must be newer than
// |last_access_time|. The storage data is handled as an independent
// entry whose type is |type|.
static bool CreateUpdate(const LRUStorage &storage,
LearningPreference::Entry::Type type,
uint64 last_access_time,
LearningPreference *local_update);
// Create a new local LRUStorage file from |remote_update| and |storage|.
// |storage| is used for setting the meta data of the storage,
// like output filename, value size, and seed. The new pending file name
// is created as storage->filename() + ".merge_pending";
// Since |remote_update| contains different types of entries, you can
// filter them by |type|.
static bool CreateMergePendingFile(
const LRUStorage &storage,
LearningPreference::Entry::Type type,
const LearningPreference &remote_update);
private:
LearningPreferenceSyncUtil() {}
~LearningPreferenceSyncUtil() {}
};
} // sync
} // mozc
#endif // MOZC_SYNC_LEARNING_PREFERENCE_SYNC_UTIL_H_