drive_backend_util.h revision 5f1c94371a64b3196d4be9466099bb892df9b88e 
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/gdata_errorcode.h"
17#include "webkit/common/blob/scoped_file.h"
18
19namespace google_apis {
20class ChangeResource;
21class FileResource;
22class ResourceEntry;
23}
24
25namespace sync_file_system {
26namespace drive_backend {
27
28class LevelDBWrapper;
29
30void PutVersionToDB(int64 version, LevelDBWrapper* db);
31
32void PutServiceMetadataToDB(const ServiceMetadata& service_metadata,
33                            LevelDBWrapper* db);
34void PutFileMetadataToDB(const FileMetadata& file, LevelDBWrapper* db);
35void PutFileTrackerToDB(const FileTracker& tracker, LevelDBWrapper* db);
36
37void PutFileMetadataDeletionToDB(const std::string& file_id,
38                                 LevelDBWrapper* db);
39void PutFileTrackerDeletionToDB(int64 tracker_id, LevelDBWrapper* db);
40
41bool HasFileAsParent(const FileDetails& details, const std::string& file_id);
42
43bool IsAppRoot(const FileTracker& tracker);
44
45std::string GetTrackerTitle(const FileTracker& tracker);
46
47SyncStatusCode GDataErrorCodeToSyncStatusCode(
48    google_apis::GDataErrorCode error);
49
50// Returns true if |str| starts with |prefix|, and removes |prefix| from |str|.
51// If |out| is not NULL, the result is stored in it.
52bool RemovePrefix(const std::string& str, const std::string& prefix,
53                  std::string* out);
54
55scoped_ptr<ServiceMetadata> InitializeServiceMetadata(LevelDBWrapper* db);
56
57template <typename Src, typename Dest>
58void AppendContents(const Src& src, Dest* dest) {
59  dest->insert(dest->end(), src.begin(), src.end());
60}
61
62template <typename Container>
63const typename Container::mapped_type& LookUpMap(
64    const Container& container,
65    const typename Container::key_type& key,
66    const typename Container::mapped_type& default_value) {
67  typename Container::const_iterator found = container.find(key);
68  if (found == container.end())
69    return default_value;
70  return found->second;
71}
72
73template <typename R, typename S, typename T>
74R ComposeFunction(const base::Callback<T()>& g,
75                  const base::Callback<R(S)>& f) {
76  return f.Run(g.Run());
77}
78
79template <typename R, typename S, typename T>
80base::Callback<R()> CreateComposedFunction(
81    const base::Callback<T()>& g,
82    const base::Callback<R(S)>& f) {
83  return base::Bind(&ComposeFunction<R, S, T>, g, f);
84}
85
86}  // namespace drive_backend
87}  // namespace sync_file_system
88
89#endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_DRIVE_BACKEND_UTIL_H_
90