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_STATE_H_
18#define UPDATE_ENGINE_UPDATE_MANAGER_STATE_H_
19
20#include "update_engine/update_manager/config_provider.h"
21#include "update_engine/update_manager/device_policy_provider.h"
22#include "update_engine/update_manager/random_provider.h"
23#include "update_engine/update_manager/shill_provider.h"
24#include "update_engine/update_manager/system_provider.h"
25#include "update_engine/update_manager/time_provider.h"
26#include "update_engine/update_manager/updater_provider.h"
27
28namespace chromeos_update_manager {
29
30// The State class is an interface to the ensemble of providers. This class
31// gives visibility of the state providers to policy implementations.
32class State {
33 public:
34  virtual ~State() {}
35
36  // These methods return the given provider.
37  virtual ConfigProvider* config_provider() = 0;
38  virtual DevicePolicyProvider* device_policy_provider() = 0;
39  virtual RandomProvider* random_provider() = 0;
40  virtual ShillProvider* shill_provider() = 0;
41  virtual SystemProvider* system_provider() = 0;
42  virtual TimeProvider* time_provider() = 0;
43  virtual UpdaterProvider* updater_provider() = 0;
44
45 protected:
46  State() {}
47
48 private:
49  DISALLOW_COPY_AND_ASSIGN(State);
50};
51
52}  // namespace chromeos_update_manager
53
54#endif  // UPDATE_ENGINE_UPDATE_MANAGER_STATE_H_
55