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// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_SYNC_ENGINE_SYNCER_PROTO_UTIL_H_
#define CHROME_BROWSER_SYNC_ENGINE_SYNCER_PROTO_UTIL_H_
#include <string>
#include "chrome/browser/sync/syncable/blob.h"
#include "chrome/browser/sync/util/sync_types.h"
namespace syncable {
class Entry;
class ScopedDirLookup;
class SyncName;
} // namespace syncable
namespace sync_pb {
class ClientToServerResponse;
} // namespace sync_pb
namespace browser_sync {
namespace sessions {
class SyncSession;
}
class ClientToServerMessage;
class SyncEntity;
class CommitResponse_EntryResponse;
class SyncerProtoUtil {
public:
// Posts the given message and fills the buffer with the returned value.
// Returns true on success. Also handles store birthday verification:
// session->status()->syncer_stuck_ is set true if the birthday is
// incorrect. A false value will always be returned if birthday is bad.
static bool PostClientToServerMessage(ClientToServerMessage* msg,
sync_pb::ClientToServerResponse* response,
sessions::SyncSession* session);
// Compares a syncable Entry to SyncEntity, returns true iff the data is
// identical.
//
// TODO(sync): The places where this function is used are arguable big causes
// of the fragility, because there's a tendency to freak out the moment the
// local and server values diverge. However, this almost always indicates a
// sync bug somewhere earlier in the sync cycle.
static bool Compare(const syncable::Entry& local_entry,
const SyncEntity& server_entry);
// Utility methods for converting between syncable::Blobs and protobuf byte
// fields.
static void CopyProtoBytesIntoBlob(const std::string& proto_bytes,
syncable::Blob* blob);
static bool ProtoBytesEqualsBlob(const std::string& proto_bytes,
const syncable::Blob& blob);
static void CopyBlobIntoProtoBytes(const syncable::Blob& blob,
std::string* proto_bytes);
// Extract the name field from a sync entity.
static const std::string& NameFromSyncEntity(const SyncEntity& entry);
// Extract the name field from a commit entry response.
static const std::string& NameFromCommitEntryResponse(
const CommitResponse_EntryResponse& entry);
private:
SyncerProtoUtil() {}
DISALLOW_COPY_AND_ASSIGN(SyncerProtoUtil);
};
} // namespace browser_sync
#endif // CHROME_BROWSER_SYNC_ENGINE_SYNCER_PROTO_UTIL_H_
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