| OLD | NEW |
|---|
| (Empty) |
| 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_METADATA_STORE_H_ | |
| 6 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_DRIVE_METADATA_STORE_H_ | |
| 7 | |
| 8 #include <map> | |
| 9 #include <string> | |
| 10 #include <utility> | |
| 11 #include <vector> | |
| 12 | |
| 13 #include "base/callback_forward.h" | |
| 14 #include "base/files/file_path.h" | |
| 15 #include "base/logging.h" | |
| 16 #include "base/memory/scoped_ptr.h" | |
| 17 #include "base/memory/weak_ptr.h" | |
| 18 #include "base/threading/non_thread_safe.h" | |
| 19 #include "chrome/browser/sync_file_system/sync_callbacks.h" | |
| 20 #include "chrome/browser/sync_file_system/sync_status_code.h" | |
| 21 #include "webkit/browser/fileapi/file_system_url.h" | |
| 22 | |
| 23 namespace base { | |
| 24 class ListValue; | |
| 25 class SequencedTaskRunner; | |
| 26 } | |
| 27 | |
| 28 namespace leveldb { | |
| 29 class DB; | |
| 30 class WriteBatch; | |
| 31 } | |
| 32 | |
| 33 class GURL; | |
| 34 | |
| 35 namespace sync_file_system { | |
| 36 | |
| 37 class DriveMetadata; | |
| 38 struct DBContents; | |
| 39 struct FileMetadata; | |
| 40 | |
| 41 // This class holds a snapshot of the server side metadata. | |
| 42 class DriveMetadataStore | |
| 43 : public base::NonThreadSafe, | |
| 44 public base::SupportsWeakPtr<DriveMetadataStore> { | |
| 45 public: | |
| 46 typedef std::map<GURL, std::string> ResourceIdByOrigin; | |
| 47 typedef std::map<std::string, GURL> OriginByResourceId; | |
| 48 typedef std::map<base::FilePath, DriveMetadata> PathToMetadata; | |
| 49 typedef std::map<GURL, PathToMetadata> MetadataMap; | |
| 50 typedef std::vector<std::pair<fileapi::FileSystemURL, DriveMetadata> > | |
| 51 URLAndDriveMetadataList; | |
| 52 typedef base::Callback<void(SyncStatusCode status, bool created)> | |
| 53 InitializationCallback; | |
| 54 | |
| 55 static const base::FilePath::CharType kDatabaseName[]; | |
| 56 | |
| 57 DriveMetadataStore(const base::FilePath& base_dir, | |
| 58 base::SequencedTaskRunner* file_task_runner); | |
| 59 ~DriveMetadataStore(); | |
| 60 | |
| 61 // Initializes the internal database and loads its content to memory. | |
| 62 // This function works asynchronously. | |
| 63 void Initialize(const InitializationCallback& callback); | |
| 64 | |
| 65 void SetLargestChangeStamp(int64 largest_changestamp, | |
| 66 const SyncStatusCallback& callback); | |
| 67 int64 GetLargestChangeStamp() const; | |
| 68 | |
| 69 // Updates database entry. Invokes |callback|, upon completion. | |
| 70 void UpdateEntry(const fileapi::FileSystemURL& url, | |
| 71 const DriveMetadata& metadata, | |
| 72 const SyncStatusCallback& callback); | |
| 73 | |
| 74 // Deletes database entry for |url|. Invokes |callback|, upon completion. | |
| 75 void DeleteEntry(const fileapi::FileSystemURL& url, | |
| 76 const SyncStatusCallback& callback); | |
| 77 | |
| 78 // Lookups and reads the database entry for |url|. | |
| 79 SyncStatusCode ReadEntry(const fileapi::FileSystemURL& url, | |
| 80 DriveMetadata* metadata) const; | |
| 81 | |
| 82 // Marks |origin| as incremental sync and associates it with the directory | |
| 83 // identified by |resource_id|. | |
| 84 // |origin| must not already be an incremental sync origin. | |
| 85 void AddIncrementalSyncOrigin(const GURL& origin, | |
| 86 const std::string& resource_id); | |
| 87 | |
| 88 // Returns true if |origin| is an incremental sync or disabled origin. | |
| 89 bool IsKnownOrigin(const GURL& origin) const; | |
| 90 | |
| 91 // Returns true if |origin| is an incremental sync origin, i.e. the origin's | |
| 92 // entire file list has been cached and is ready to apply changes | |
| 93 // incrementally. | |
| 94 bool IsIncrementalSyncOrigin(const GURL& origin) const; | |
| 95 | |
| 96 // Returns true if |origin| is a disabled origin. | |
| 97 bool IsOriginDisabled(const GURL& origin) const; | |
| 98 | |
| 99 void EnableOrigin(const GURL& origin, | |
| 100 const SyncStatusCallback& callback); | |
| 101 | |
| 102 void DisableOrigin(const GURL& origin, | |
| 103 const SyncStatusCallback& callback); | |
| 104 | |
| 105 void RemoveOrigin(const GURL& origin, | |
| 106 const SyncStatusCallback& callback); | |
| 107 | |
| 108 // Sets the directory identified by |resource_id| as the sync data directory. | |
| 109 // All data for the Sync FileSystem should be store into the directory. | |
| 110 void SetSyncRootDirectory(const std::string& resource_id); | |
| 111 void SetOriginRootDirectory(const GURL& origin, | |
| 112 const std::string& resource_id); | |
| 113 | |
| 114 // Returns a set of URLs for files in conflict. | |
| 115 SyncStatusCode GetConflictURLs( | |
| 116 fileapi::FileSystemURLSet* urls) const; | |
| 117 | |
| 118 // Returns a set of URLs and Resource IDs for files to be fetched. | |
| 119 SyncStatusCode GetToBeFetchedFiles(URLAndDriveMetadataList* list) const; | |
| 120 | |
| 121 // Returns resource id for |origin|. | |
| 122 // This may return an empty string if |origin| is not a incremental or | |
| 123 // disabled origin. | |
| 124 std::string GetResourceIdForOrigin(const GURL& origin) const; | |
| 125 | |
| 126 const std::string& sync_root_directory() const { | |
| 127 DCHECK(CalledOnValidThread()); | |
| 128 return sync_root_directory_resource_id_; | |
| 129 } | |
| 130 | |
| 131 const ResourceIdByOrigin& incremental_sync_origins() const { | |
| 132 DCHECK(CalledOnValidThread()); | |
| 133 return incremental_sync_origins_; | |
| 134 } | |
| 135 | |
| 136 const ResourceIdByOrigin& disabled_origins() const { | |
| 137 DCHECK(CalledOnValidThread()); | |
| 138 return disabled_origins_; | |
| 139 } | |
| 140 | |
| 141 // Returns all tracked origins. i.e. incremental_sync_origins_ and | |
| 142 // disabled_origins_. | |
| 143 void GetAllOrigins(std::vector<GURL>* origins); | |
| 144 | |
| 145 // Maps |resource_id| to corresponding |origin|. | |
| 146 // Returns true if the directory indicated by |resource_id| is not an origin | |
| 147 // root directory. | |
| 148 bool GetOriginByOriginRootDirectoryId(const std::string& resource_id, | |
| 149 GURL* origin); | |
| 150 | |
| 151 // Returns all file metadata for the given origin. | |
| 152 scoped_ptr<base::ListValue> DumpFiles(const GURL& origin); | |
| 153 | |
| 154 private: | |
| 155 friend class DriveMetadataStoreTest; | |
| 156 | |
| 157 void WriteToDB(scoped_ptr<leveldb::WriteBatch> batch, | |
| 158 const SyncStatusCallback& callback); | |
| 159 | |
| 160 void UpdateDBStatus(SyncStatusCode status); | |
| 161 void UpdateDBStatusAndInvokeCallback(const SyncStatusCallback& callback, | |
| 162 const leveldb::Status& status); | |
| 163 void DidInitialize(const InitializationCallback& callback, | |
| 164 scoped_ptr<DBContents> contents); | |
| 165 void DidUpdateOrigin(const SyncStatusCallback& callback, | |
| 166 SyncStatusCode status); | |
| 167 | |
| 168 leveldb::DB* GetDBInstanceForTesting(); | |
| 169 | |
| 170 scoped_refptr<base::SequencedTaskRunner> file_task_runner_; | |
| 171 base::FilePath base_dir_; | |
| 172 scoped_ptr<leveldb::DB> db_; | |
| 173 SyncStatusCode db_status_; | |
| 174 | |
| 175 int64 largest_changestamp_; | |
| 176 MetadataMap metadata_map_; | |
| 177 | |
| 178 std::string sync_root_directory_resource_id_; | |
| 179 ResourceIdByOrigin incremental_sync_origins_; | |
| 180 ResourceIdByOrigin disabled_origins_; | |
| 181 | |
| 182 OriginByResourceId origin_by_resource_id_; | |
| 183 | |
| 184 DISALLOW_COPY_AND_ASSIGN(DriveMetadataStore); | |
| 185 }; | |
| 186 | |
| 187 } // namespace sync_file_system | |
| 188 | |
| 189 #endif // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_DRIVE_METADATA_STORE_H_ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 23787003:
[SyncFS] Move SyncFS V1 files from drive_backend to drive_backend_v1 (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src