chrome/browser/sync_file_system/local_change_processor.h

   1 // Copyright (c) 2012 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 CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_CHANGE_PROCESSOR_H_
   6 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_CHANGE_PROCESSOR_H_
   7
   8 #include "base/callback_forward.h"
   9 #include "chrome/browser/sync_file_system/sync_callbacks.h"
  10
  11 namespace storage {
  12 class FileSystemURL;
  13 }
  14
  15 namespace sync_file_system {
  16
  17 class FileChange;
  18
  19 // Represents an interface to process one local change and applies
  20 // it to the remote server.
  21 // This interface is to be implemented/backed by RemoteSyncFileService.
  22 class LocalChangeProcessor {
  23  public:
  24   LocalChangeProcessor() {}
  25   virtual ~LocalChangeProcessor() {}
  26
  27   // This is called to apply the local |change|. If the change type is
  28   // ADD_OR_UPDATE for a file, |local_file_path| points to a local file
  29   // path that contains the latest file image whose file metadata is
  30   // |local_file_metadata|.
  31   // When SYNC_STATUS_HAS_CONFLICT is returned the implementation should
  32   // notify the backing RemoteFileSyncService of the existence of conflict
  33   // (as the remote service is supposed to maintain a list of conflict files).
  34   virtual void ApplyLocalChange(const FileChange& change,
  35                                 const base::FilePath& local_file_path,
  36                                 const SyncFileMetadata& local_file_metadata,
  37                                 const storage::FileSystemURL& url,
  38                                 const SyncStatusCallback& callback) = 0;
  39
  40  private:
  41   DISALLOW_COPY_AND_ASSIGN(LocalChangeProcessor);
  42 };
  43
  44 }  // namespace sync_file_system
  45
  46 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_CHANGE_PROCESSOR_H_