chrome/browser/sync_file_system/drive_backend/drive_backend_util.h

   1 // Copyright 2013 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_DRIVE_BACKEND_DRIVE_BACKEND_UTIL_H_
   6 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_DRIVE_BACKEND_UTIL_H_
   7
   8 #include <string>
   9
  10 #include "base/bind.h"
  11 #include "base/callback.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/memory/scoped_vector.h"
  14 #include "chrome/browser/sync_file_system/drive_backend/metadata_database.pb.h"
  15 #include "chrome/browser/sync_file_system/sync_status_code.h"
  16 #include "google_apis/drive/drive_api_error_codes.h"
  17 #include "storage/browser/blob/scoped_file.h"
  18
  19 namespace google_apis {
  20 class ChangeResource;
  21 class FileResource;
  22 }
  23
  24 namespace sync_file_system {
  25 namespace drive_backend {
  26
  27 class LevelDBWrapper;
  28
  29 void PutVersionToDB(int64 version, LevelDBWrapper* db);
  30
  31 void PutServiceMetadataToDB(const ServiceMetadata& service_metadata,
  32                             LevelDBWrapper* db);
  33 void PutFileMetadataToDB(const FileMetadata& file, LevelDBWrapper* db);
  34 void PutFileTrackerToDB(const FileTracker& tracker, LevelDBWrapper* db);
  35
  36 void PutFileMetadataDeletionToDB(const std::string& file_id,
  37                                  LevelDBWrapper* db);
  38 void PutFileTrackerDeletionToDB(int64 tracker_id, LevelDBWrapper* db);
  39
  40 bool HasFileAsParent(const FileDetails& details, const std::string& file_id);
  41
  42 bool IsAppRoot(const FileTracker& tracker);
  43
  44 std::string GetTrackerTitle(const FileTracker& tracker);
  45
  46 SyncStatusCode DriveApiErrorCodeToSyncStatusCode(
  47     google_apis::DriveApiErrorCode error);
  48
  49 // Returns true if |str| starts with |prefix|, and removes |prefix| from |str|.
  50 // If |out| is not NULL, the result is stored in it.
  51 bool RemovePrefix(const std::string& str, const std::string& prefix,
  52                   std::string* out);
  53
  54 scoped_ptr<ServiceMetadata> InitializeServiceMetadata(LevelDBWrapper* db);
  55
  56 template <typename Src, typename Dest>
  57 void AppendContents(const Src& src, Dest* dest) {
  58   dest->insert(dest->end(), src.begin(), src.end());
  59 }
  60
  61 template <typename Container>
  62 const typename Container::mapped_type& LookUpMap(
  63     const Container& container,
  64     const typename Container::key_type& key,
  65     const typename Container::mapped_type& default_value) {
  66   typename Container::const_iterator found = container.find(key);
  67   if (found == container.end())
  68     return default_value;
  69   return found->second;
  70 }
  71
  72 template <typename R, typename S, typename T>
  73 R ComposeFunction(const base::Callback<T()>& g,
  74                   const base::Callback<R(S)>& f) {
  75   return f.Run(g.Run());
  76 }
  77
  78 template <typename R, typename S, typename T>
  79 base::Callback<R()> CreateComposedFunction(
  80     const base::Callback<T()>& g,
  81     const base::Callback<R(S)>& f) {
  82   return base::Bind(&ComposeFunction<R, S, T>, g, f);
  83 }
  84
  85 }  // namespace drive_backend
  86 }  // namespace sync_file_system
  87
  88 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_DRIVE_BACKEND_UTIL_H_