extensions/browser/api/storage/leveldb_settings_storage_factory.cc

   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 #include "extensions/browser/api/storage/leveldb_settings_storage_factory.h"
   6
   7 #include "base/files/file_util.h"
   8 #include "base/logging.h"
   9 #include "extensions/browser/value_store/leveldb_value_store.h"
  10
  11 namespace extensions {
  12
  13 namespace {
  14
  15 // Statistics are logged to UMA with this string as part of histogram name. They
  16 // can all be found under Extensions.Database.Open.<client>. Changing this needs
  17 // to synchronize with histograms.xml, AND will also become incompatible with
  18 // older browsers still reporting the previous values.
  19 const char kDatabaseUMAClientName[] = "Settings";
  20
  21 base::FilePath GetDatabasePath(const base::FilePath& base_path,
  22                                const std::string& extension_id) {
  23   return base_path.AppendASCII(extension_id);
  24 }
  25
  26 }  // namespace
  27
  28 ValueStore* LeveldbSettingsStorageFactory::Create(
  29     const base::FilePath& base_path,
  30     const std::string& extension_id) {
  31   return new LeveldbValueStore(kDatabaseUMAClientName,
  32                                GetDatabasePath(base_path, extension_id));
  33 }
  34
  35 void LeveldbSettingsStorageFactory::DeleteDatabaseIfExists(
  36     const base::FilePath& base_path,
  37     const std::string& extension_id) {
  38   base::FilePath path = GetDatabasePath(base_path, extension_id);
  39   if (base::PathExists(path))
  40     base::DeleteFile(path, true /* recursive */);
  41 }
  42
  43 }  // namespace extensions