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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 CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_WORKER_H_
#define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_WORKER_H_
#include <string>
#include "base/files/file_path.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "chrome/browser/sync_file_system/drive_backend/sync_task_manager.h"
#include "chrome/browser/sync_file_system/drive_backend/sync_worker_interface.h"
#include "chrome/browser/sync_file_system/remote_file_sync_service.h"
#include "chrome/browser/sync_file_system/sync_callbacks.h"
#include "chrome/browser/sync_file_system/task_logger.h"
class ExtensionServiceInterface;
class GURL;
namespace base {
class ListValue;
}
namespace drive {
class DriveServiceInterface;
class DriveUploaderInterface;
}
namespace storage {
class FileSystemURL;
}
namespace leveldb {
class Env;
}
namespace sync_file_system {
class FileChange;
class SyncFileMetadata;
namespace drive_backend {
class LocalToRemoteSyncer;
class MetadataDatabase;
class RemoteChangeProcessorOnWorker;
class RemoteToLocalSyncer;
class SyncEngineContext;
class SyncEngineInitializer;
class SyncWorker : public SyncWorkerInterface,
public SyncTaskManager::Client {
public:
SyncWorker(const base::FilePath& base_dir,
const base::WeakPtr<ExtensionServiceInterface>& extension_service,
leveldb::Env* env_override);
~SyncWorker() override;
void Initialize(scoped_ptr<SyncEngineContext> context) override;
// SyncTaskManager::Client overrides
void MaybeScheduleNextTask() override;
void NotifyLastOperationStatus(SyncStatusCode sync_status,
bool used_network) override;
void RecordTaskLog(scoped_ptr<TaskLogger::TaskLog> task_log) override;
// SyncWorkerInterface overrides
void RegisterOrigin(const GURL& origin,
const SyncStatusCallback& callback) override;
void EnableOrigin(const GURL& origin,
const SyncStatusCallback& callback) override;
void DisableOrigin(const GURL& origin,
const SyncStatusCallback& callback) override;
void UninstallOrigin(const GURL& origin,
RemoteFileSyncService::UninstallFlag flag,
const SyncStatusCallback& callback) override;
void ProcessRemoteChange(const SyncFileCallback& callback) override;
void SetRemoteChangeProcessor(RemoteChangeProcessorOnWorker*
remote_change_processor_on_worker) override;
RemoteServiceState GetCurrentState() const override;
void GetOriginStatusMap(
const RemoteFileSyncService::StatusMapCallback& callback) override;
scoped_ptr<base::ListValue> DumpFiles(const GURL& origin) override;
scoped_ptr<base::ListValue> DumpDatabase() override;
void SetSyncEnabled(bool enabled) override;
void PromoteDemotedChanges(const base::Closure& callback) override;
void ApplyLocalChange(const FileChange& local_change,
const base::FilePath& local_path,
const SyncFileMetadata& local_metadata,
const storage::FileSystemURL& url,
const SyncStatusCallback& callback) override;
void ActivateService(RemoteServiceState service_state,
const std::string& description) override;
void DeactivateService(const std::string& description) override;
void DetachFromSequence() override;
void AddObserver(Observer* observer) override;
private:
friend class DriveBackendSyncTest;
friend class SyncWorkerTest;
enum AppStatus {
APP_STATUS_ENABLED,
APP_STATUS_DISABLED,
APP_STATUS_UNINSTALLED,
};
typedef base::hash_map<std::string, AppStatus> AppStatusMap;
void DoDisableApp(const std::string& app_id,
const SyncStatusCallback& callback);
void DoEnableApp(const std::string& app_id,
const SyncStatusCallback& callback);
void PostInitializeTask();
void DidInitialize(SyncEngineInitializer* initializer,
SyncStatusCode status);
void UpdateRegisteredApps();
static void QueryAppStatusOnUIThread(
const base::WeakPtr<ExtensionServiceInterface>& extension_service_ptr,
const std::vector<std::string>* app_ids,
AppStatusMap* status,
const base::Closure& callback);
void DidQueryAppStatus(const AppStatusMap* app_status);
void DidProcessRemoteChange(RemoteToLocalSyncer* syncer,
const SyncFileCallback& callback,
SyncStatusCode status);
void DidApplyLocalChange(LocalToRemoteSyncer* syncer,
const SyncStatusCallback& callback,
SyncStatusCode status);
// Returns true if a FetchChanges task is scheduled.
bool MaybeStartFetchChanges();
void DidResolveConflict(SyncStatusCode status);
void DidFetchChanges(SyncStatusCode status);
void UpdateServiceStateFromSyncStatusCode(SyncStatusCode state,
bool used_network);
void UpdateServiceState(RemoteServiceState state,
const std::string& description);
void CallOnIdleForTesting(const base::Closure& callback);
drive::DriveServiceInterface* GetDriveService();
drive::DriveUploaderInterface* GetDriveUploader();
MetadataDatabase* GetMetadataDatabase();
base::FilePath base_dir_;
leveldb::Env* env_override_;
// Sync with SyncEngine.
RemoteServiceState service_state_;
bool should_check_conflict_;
bool should_check_remote_change_;
bool listing_remote_changes_;
base::TimeTicks time_to_check_changes_;
bool sync_enabled_;
base::Closure call_on_idle_callback_;
scoped_ptr<SyncTaskManager> task_manager_;
base::WeakPtr<ExtensionServiceInterface> extension_service_;
scoped_ptr<SyncEngineContext> context_;
ObserverList<Observer> observers_;
base::SequenceChecker sequence_checker_;
base::WeakPtrFactory<SyncWorker> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(SyncWorker);
};
} // namespace drive_backend
} // namespace sync_file_system
#endif // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_WORKER_H_
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