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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_BROWSER_POLICY_POLICY_STATISTICS_COLLECTOR_H_ | 5 #ifndef CHROME_BROWSER_POLICY_POLICY_STATISTICS_COLLECTOR_H_ |
6 #define CHROME_BROWSER_POLICY_POLICY_STATISTICS_COLLECTOR_H_ | 6 #define CHROME_BROWSER_POLICY_POLICY_STATISTICS_COLLECTOR_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/cancelable_callback.h" | 9 #include "base/cancelable_callback.h" |
10 #include "base/memory/ref_counted.h" | 10 #include "base/memory/ref_counted.h" |
11 #include "base/time.h" | 11 #include "base/time.h" |
12 | 12 |
13 class PrefService; | 13 class PrefService; |
| 14 class PrefServiceSimple; |
14 | 15 |
15 namespace base { | 16 namespace base { |
16 class TaskRunner; | 17 class TaskRunner; |
17 } | 18 } |
18 | 19 |
19 namespace policy { | 20 namespace policy { |
20 | 21 |
21 class PolicyService; | 22 class PolicyService; |
22 | 23 |
23 // Manages regular updates of policy usage UMA histograms. | 24 // Manages regular updates of policy usage UMA histograms. |
24 class PolicyStatisticsCollector { | 25 class PolicyStatisticsCollector { |
25 public: | 26 public: |
26 // Policy usage statistics update rate, in milliseconds. | 27 // Policy usage statistics update rate, in milliseconds. |
27 static const int kStatisticsUpdateRate; | 28 static const int kStatisticsUpdateRate; |
28 | 29 |
29 // Neither |policy_service| nor |prefs| can be NULL and must stay valid | 30 // Neither |policy_service| nor |prefs| can be NULL and must stay valid |
30 // throughout the lifetime of PolicyStatisticsCollector. | 31 // throughout the lifetime of PolicyStatisticsCollector. |
31 PolicyStatisticsCollector(PolicyService* policy_service, | 32 PolicyStatisticsCollector(PolicyService* policy_service, |
32 PrefService* prefs, | 33 PrefService* prefs, |
33 const scoped_refptr<base::TaskRunner>& task_runner); | 34 const scoped_refptr<base::TaskRunner>& task_runner); |
34 virtual ~PolicyStatisticsCollector(); | 35 virtual ~PolicyStatisticsCollector(); |
35 | 36 |
36 // Completes initialization and starts periodical statistic updates. | 37 // Completes initialization and starts periodical statistic updates. |
37 void Initialize(); | 38 void Initialize(); |
38 | 39 |
39 static void RegisterPrefs(PrefService* prefs); | 40 static void RegisterPrefs(PrefServiceSimple* prefs); |
40 | 41 |
41 protected: | 42 protected: |
42 // protected virtual for mocking. | 43 // protected virtual for mocking. |
43 virtual void RecordPolicyUse(int id); | 44 virtual void RecordPolicyUse(int id); |
44 | 45 |
45 private: | 46 private: |
46 void CollectStatistics(); | 47 void CollectStatistics(); |
47 void ScheduleUpdate(base::TimeDelta delay); | 48 void ScheduleUpdate(base::TimeDelta delay); |
48 | 49 |
49 int max_policy_id_; | 50 int max_policy_id_; |
50 | 51 |
51 PolicyService* policy_service_; | 52 PolicyService* policy_service_; |
52 PrefService* prefs_; | 53 PrefService* prefs_; |
53 | 54 |
54 base::CancelableClosure update_callback_; | 55 base::CancelableClosure update_callback_; |
55 | 56 |
56 const scoped_refptr<base::TaskRunner> task_runner_; | 57 const scoped_refptr<base::TaskRunner> task_runner_; |
57 | 58 |
58 DISALLOW_COPY_AND_ASSIGN(PolicyStatisticsCollector); | 59 DISALLOW_COPY_AND_ASSIGN(PolicyStatisticsCollector); |
59 }; | 60 }; |
60 | 61 |
61 } // namespace policy | 62 } // namespace policy |
62 | 63 |
63 #endif // CHROME_BROWSER_POLICY_POLICY_STATISTICS_COLLECTOR_H_ | 64 #endif // CHROME_BROWSER_POLICY_POLICY_STATISTICS_COLLECTOR_H_ |
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