1//
2// Copyright (C) 2014 The Android Open Source Project
3//
4// Licensed under the Apache License, Version 2.0 (the "License");
5// you may not use this file except in compliance with the License.
6// You may obtain a copy of the License at
7//
8//      http://www.apache.org/licenses/LICENSE-2.0
9//
10// Unless required by applicable law or agreed to in writing, software
11// distributed under the License is distributed on an "AS IS" BASIS,
12// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13// See the License for the specific language governing permissions and
14// limitations under the License.
15//
16
17#ifndef UPDATE_ENGINE_UPDATE_MANAGER_REAL_CONFIG_PROVIDER_H_
18#define UPDATE_ENGINE_UPDATE_MANAGER_REAL_CONFIG_PROVIDER_H_
19
20#include <memory>
21#include <string>
22
23#include "update_engine/common/hardware_interface.h"
24#include "update_engine/update_manager/config_provider.h"
25#include "update_engine/update_manager/generic_variables.h"
26
27namespace chromeos_update_manager {
28
29// ConfigProvider concrete implementation.
30class RealConfigProvider : public ConfigProvider {
31 public:
32  explicit RealConfigProvider(
33      chromeos_update_engine::HardwareInterface* hardware)
34      : hardware_(hardware) {}
35
36  // Initializes the provider and returns whether it succeeded.
37  bool Init();
38
39  Variable<bool>* var_is_oobe_enabled() override {
40    return var_is_oobe_enabled_.get();
41  }
42
43 private:
44  friend class UmRealConfigProviderTest;
45
46  // Used for testing. Sets the root prefix, which is by default "". Call this
47  // method before calling Init() in order to mock out the place where the files
48  // are being read from.
49  void SetRootPrefix(const std::string& prefix) {
50    root_prefix_ = prefix;
51  }
52
53  std::unique_ptr<ConstCopyVariable<bool>> var_is_oobe_enabled_;
54
55  chromeos_update_engine::HardwareInterface* hardware_;
56
57  // Prefix to prepend to the file paths. Useful for testing.
58  std::string root_prefix_;
59
60  DISALLOW_COPY_AND_ASSIGN(RealConfigProvider);
61};
62
63}  // namespace chromeos_update_manager
64
65#endif  // UPDATE_ENGINE_UPDATE_MANAGER_REAL_CONFIG_PROVIDER_H_
66