1// Copyright 2014 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef COMPONENTS_SYNC_DRIVER_GENERIC_CHANGE_PROCESSOR_FACTORY_H_ 6#define COMPONENTS_SYNC_DRIVER_GENERIC_CHANGE_PROCESSOR_FACTORY_H_ 7 8#include "base/memory/weak_ptr.h" 9#include "sync/internal_api/public/base/model_type.h" 10 11namespace syncer { 12class AttachmentService; 13class SyncableService; 14class SyncMergeResult; 15struct UserShare; 16} 17 18namespace sync_driver { 19 20class DataTypeErrorHandler; 21class GenericChangeProcessor; 22class SyncApiComponentFactory; 23 24// Because GenericChangeProcessors are created and used only from the model 25// thread, their lifetime is strictly shorter than other components like 26// DataTypeController, which live before / after communication with model 27// threads begins and ends. 28// The GCP is created "on the fly" at just the right time, on just the right 29// thread. Given that, we use a factory to instantiate GenericChangeProcessors 30// so that tests can choose to use a fake processor (i.e instead of injection). 31// |sync_factory| is used to create AttachmentServicefor GenericChangeProcessor. 32// It is not retained after CreateGenericChangeProcessor exits. 33class GenericChangeProcessorFactory { 34 public: 35 GenericChangeProcessorFactory(); 36 virtual ~GenericChangeProcessorFactory(); 37 virtual scoped_ptr<GenericChangeProcessor> CreateGenericChangeProcessor( 38 syncer::ModelType type, 39 syncer::UserShare* user_share, 40 DataTypeErrorHandler* error_handler, 41 const base::WeakPtr<syncer::SyncableService>& local_service, 42 const base::WeakPtr<syncer::SyncMergeResult>& merge_result, 43 SyncApiComponentFactory* sync_factory); 44 45 private: 46 DISALLOW_COPY_AND_ASSIGN(GenericChangeProcessorFactory); 47}; 48 49} // namespace sync_driver 50 51#endif // COMPONENTS_SYNC_DRIVER_GENERIC_CHANGE_PROCESSOR_FACTORY_H_ 52