| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include "AnomalyMonitor.h" |
| #include "AnomalyTracker.h" |
| |
| namespace android { |
| namespace os { |
| namespace statsd { |
| |
| using std::unordered_map; |
| |
| class DurationAnomalyTracker : public virtual AnomalyTracker { |
| public: |
| DurationAnomalyTracker(const Alert& alert, const ConfigKey& configKey); |
| |
| virtual ~DurationAnomalyTracker(); |
| |
| // Starts the alarm at the given timestamp. |
| void startAlarm(const MetricDimensionKey& dimensionKey, const uint64_t& eventTime); |
| |
| // Stops the alarm. |
| void stopAlarm(const MetricDimensionKey& dimensionKey); |
| |
| // Stop all the alarms owned by this tracker. |
| void stopAllAlarms(); |
| |
| // Init the AnomalyMonitor which is shared across anomaly trackers. |
| void setAnomalyMonitor(const sp<AnomalyMonitor>& anomalyMonitor) override { |
| mAnomalyMonitor = anomalyMonitor; |
| } |
| |
| // Declares the anomaly when the alarm expired given the current timestamp. |
| void declareAnomalyIfAlarmExpired(const MetricDimensionKey& dimensionKey, |
| const uint64_t& timestampNs); |
| |
| // Declares an anomaly for each alarm in firedAlarms that belongs to this DurationAnomalyTracker |
| // and removes it from firedAlarms. |
| // Note that this will generally be called from a different thread from the other functions; |
| // the caller is responsible for thread safety. |
| void informAlarmsFired( |
| const uint64_t& timestampNs, |
| unordered_set<sp<const AnomalyAlarm>, SpHash<AnomalyAlarm>>& firedAlarms) override; |
| |
| protected: |
| // The alarms owned by this tracker. The alarm monitor also shares the alarm pointers when they |
| // are still active. |
| std::unordered_map<MetricDimensionKey, sp<const AnomalyAlarm>> mAlarms; |
| |
| // Anomaly alarm monitor. |
| sp<AnomalyMonitor> mAnomalyMonitor; |
| |
| // Resets all bucket data. For use when all the data gets stale. |
| void resetStorage() override; |
| |
| FRIEND_TEST(OringDurationTrackerTest, TestPredictAnomalyTimestamp); |
| FRIEND_TEST(OringDurationTrackerTest, TestAnomalyDetectionExpiredAlarm); |
| FRIEND_TEST(OringDurationTrackerTest, TestAnomalyDetectionFiredAlarm); |
| FRIEND_TEST(MaxDurationTrackerTest, TestAnomalyDetection); |
| FRIEND_TEST(MaxDurationTrackerTest, TestAnomalyDetection); |
| }; |
| |
| } // namespace statsd |
| } // namespace os |
| } // namespace android |