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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/browser/policy/policy_statistics_collector.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/bind.h" | |
| 11 #include "base/callback.h" | |
| 12 #include "base/location.h" | |
| 13 #include "base/logging.h" | |
| 14 #include "base/metrics/sparse_histogram.h" | |
| 15 #include "base/prefs/pref_registry_simple.h" | |
| 16 #include "base/prefs/pref_service.h" | |
| 17 #include "base/task_runner.h" | |
| 18 #include "chrome/browser/policy/policy_service.h" | |
| 19 #include "components/policy/core/common/policy_pref_names.h" | |
| 20 | |
| 21 namespace policy { | |
| 22 | |
| 23 const int PolicyStatisticsCollector::kStatisticsUpdateRate = | |
| 24 24 * 60 * 60 * 1000; // 24 hours. | |
| 25 | |
| 26 PolicyStatisticsCollector::PolicyStatisticsCollector( | |
| 27 const GetChromePolicyDetailsCallback& get_details, | |
| 28 const Schema& chrome_schema, | |
| 29 PolicyService* policy_service, | |
| 30 PrefService* prefs, | |
| 31 const scoped_refptr<base::TaskRunner>& task_runner) | |
| 32 : get_details_(get_details), | |
| 33 chrome_schema_(chrome_schema), | |
| 34 policy_service_(policy_service), | |
| 35 prefs_(prefs), | |
| 36 task_runner_(task_runner) { | |
| 37 } | |
| 38 | |
| 39 PolicyStatisticsCollector::~PolicyStatisticsCollector() { | |
| 40 } | |
| 41 | |
| 42 void PolicyStatisticsCollector::Initialize() { | |
| 43 using base::Time; | |
| 44 using base::TimeDelta; | |
| 45 | |
| 46 TimeDelta update_rate = TimeDelta::FromMilliseconds(kStatisticsUpdateRate); | |
| 47 Time last_update = Time::FromInternalValue( | |
| 48 prefs_->GetInt64(policy_prefs::kLastPolicyStatisticsUpdate)); | |
| 49 TimeDelta delay = std::max(Time::Now() - last_update, TimeDelta::FromDays(0)); | |
| 50 if (delay >= update_rate) | |
| 51 CollectStatistics(); | |
| 52 else | |
| 53 ScheduleUpdate(update_rate - delay); | |
| 54 } | |
| 55 | |
| 56 // static | |
| 57 void PolicyStatisticsCollector::RegisterPrefs(PrefRegistrySimple* registry) { | |
| 58 registry->RegisterInt64Pref(policy_prefs::kLastPolicyStatisticsUpdate, 0); | |
| 59 } | |
| 60 | |
| 61 void PolicyStatisticsCollector::RecordPolicyUse(int id) { | |
| 62 UMA_HISTOGRAM_SPARSE_SLOWLY("Enterprise.Policies", id); | |
| 63 } | |
| 64 | |
| 65 void PolicyStatisticsCollector::CollectStatistics() { | |
| 66 const PolicyMap& policies = policy_service_->GetPolicies( | |
| 67 PolicyNamespace(POLICY_DOMAIN_CHROME, std::string())); | |
| 68 | |
| 69 // Collect statistics. | |
| 70 for (Schema::Iterator it(chrome_schema_.GetPropertiesIterator()); | |
| 71 !it.IsAtEnd(); it.Advance()) { | |
| 72 if (policies.Get(it.key())) { | |
| 73 const PolicyDetails* details = get_details_.Run(it.key()); | |
| 74 if (details) | |
| 75 RecordPolicyUse(details->id); | |
| 76 else | |
| 77 NOTREACHED(); | |
| 78 } | |
| 79 } | |
| 80 | |
| 81 // Take care of next update. | |
| 82 prefs_->SetInt64(policy_prefs::kLastPolicyStatisticsUpdate, | |
| 83 base::Time::Now().ToInternalValue()); | |
| 84 ScheduleUpdate(base::TimeDelta::FromMilliseconds(kStatisticsUpdateRate)); | |
| 85 } | |
| 86 | |
| 87 void PolicyStatisticsCollector::ScheduleUpdate(base::TimeDelta delay) { | |
| 88 update_callback_.Reset(base::Bind( | |
| 89 &PolicyStatisticsCollector::CollectStatistics, | |
| 90 base::Unretained(this))); | |
| 91 task_runner_->PostDelayedTask(FROM_HERE, update_callback_.callback(), delay); | |
| 92 } | |
| 93 | |
| 94 } // namespace policy | |
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Chromium Code Reviews
Issue 109743002:
Move policy code into components/policy. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src