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// Copyright 2014 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 SYNC_INTERNAL_API_SYNC_ROLLBACK_MANAGER_BASE_H_
#define SYNC_INTERNAL_API_SYNC_ROLLBACK_MANAGER_BASE_H_
#include <string>
#include <vector>
#include "sync/base/sync_export.h"
#include "sync/internal_api/public/http_post_provider_factory.h"
#include "sync/internal_api/public/internal_components_factory.h"
#include "sync/internal_api/public/sync_manager.h"
#include "sync/internal_api/public/user_share.h"
#include "sync/syncable/directory_change_delegate.h"
#include "sync/syncable/transaction_observer.h"
namespace syncer {
class WriteTransaction;
// Base class of sync managers used for backup and rollback. Two major
// functions are:
// * Init(): load backup DB into sync directory.
// * ConfigureSyncer(): initialize permanent sync nodes (root, bookmark
// permanent folders) for configured type as needed.
//
// Most of other functions are no ops.
class SYNC_EXPORT_PRIVATE SyncRollbackManagerBase :
public SyncManager,
public syncable::DirectoryChangeDelegate,
public syncable::TransactionObserver {
public:
SyncRollbackManagerBase();
~SyncRollbackManagerBase() override;
// SyncManager implementation.
ModelTypeSet InitialSyncEndedTypes() override;
ModelTypeSet GetTypesWithEmptyProgressMarkerToken(
ModelTypeSet types) override;
bool PurgePartiallySyncedTypes() override;
void UpdateCredentials(const SyncCredentials& credentials) override;
void StartSyncingNormally(const ModelSafeRoutingInfo& routing_info,
base::Time last_poll_time) override;
void ConfigureSyncer(ConfigureReason reason,
ModelTypeSet to_download,
ModelTypeSet to_purge,
ModelTypeSet to_journal,
ModelTypeSet to_unapply,
const ModelSafeRoutingInfo& new_routing_info,
const base::Closure& ready_task,
const base::Closure& retry_task) override;
void SetInvalidatorEnabled(bool invalidator_enabled) override;
void OnIncomingInvalidation(
syncer::ModelType type,
scoped_ptr<InvalidationInterface> invalidation) override;
void AddObserver(SyncManager::Observer* observer) override;
void RemoveObserver(SyncManager::Observer* observer) override;
SyncStatus GetDetailedStatus() const override;
void SaveChanges() override;
void ShutdownOnSyncThread(ShutdownReason reason) override;
UserShare* GetUserShare() override;
const std::string cache_guid() override;
bool ReceivedExperiment(Experiments* experiments) override;
bool HasUnsyncedItems() override;
SyncEncryptionHandler* GetEncryptionHandler() override;
void RefreshTypes(ModelTypeSet types) override;
syncer_v2::SyncContextProxy* GetSyncContextProxy() override;
ScopedVector<ProtocolEvent> GetBufferedProtocolEvents() override;
scoped_ptr<base::ListValue> GetAllNodesForType(
syncer::ModelType type) override;
void ClearServerData(const ClearServerDataCallback& callback) override;
// DirectoryChangeDelegate implementation.
void HandleTransactionCompleteChangeEvent(
ModelTypeSet models_with_changes) override;
ModelTypeSet HandleTransactionEndingChangeEvent(
const syncable::ImmutableWriteTransactionInfo& write_transaction_info,
syncable::BaseTransaction* trans) override;
void HandleCalculateChangesChangeEventFromSyncApi(
const syncable::ImmutableWriteTransactionInfo& write_transaction_info,
syncable::BaseTransaction* trans,
std::vector<int64>* entries_changed) override;
void HandleCalculateChangesChangeEventFromSyncer(
const syncable::ImmutableWriteTransactionInfo& write_transaction_info,
syncable::BaseTransaction* trans,
std::vector<int64>* entries_changed) override;
// syncable::TransactionObserver implementation.
void OnTransactionWrite(
const syncable::ImmutableWriteTransactionInfo& write_transaction_info,
ModelTypeSet models_with_changes) override;
protected:
base::ObserverList<SyncManager::Observer>* GetObservers();
// Initialize sync backup DB.
bool InitInternal(
const base::FilePath& database_location,
InternalComponentsFactory* internal_components_factory,
InternalComponentsFactory::StorageOption storage,
scoped_ptr<UnrecoverableErrorHandler> unrecoverable_error_handler,
const base::Closure& report_unrecoverable_error_function);
void RegisterDirectoryTypeDebugInfoObserver(
syncer::TypeDebugInfoObserver* observer) override;
void UnregisterDirectoryTypeDebugInfoObserver(
syncer::TypeDebugInfoObserver* observer) override;
bool HasDirectoryTypeDebugInfoObserver(
syncer::TypeDebugInfoObserver* observer) override;
void RequestEmitDebugInfo() override;
bool initialized() const {
return initialized_;
}
private:
void NotifyInitializationSuccess();
void NotifyInitializationFailure();
bool InitBackupDB(const base::FilePath& sync_folder,
InternalComponentsFactory* internal_components_factory,
InternalComponentsFactory::StorageOption storage);
bool InitTypeRootNode(ModelType type);
void InitBookmarkFolder(const std::string& folder);
UserShare share_;
base::ObserverList<SyncManager::Observer> observers_;
scoped_ptr<UnrecoverableErrorHandler> unrecoverable_error_handler_;
base::Closure report_unrecoverable_error_function_;
scoped_ptr<SyncEncryptionHandler> dummy_handler_;
bool initialized_;
base::WeakPtrFactory<SyncRollbackManagerBase> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(SyncRollbackManagerBase);
};
} // namespace syncer
#endif // SYNC_INTERNAL_API_SYNC_ROLLBACK_MANAGER_BASE_H_
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