Yao Chen | 44cf27c | 2017-09-14 22:32:50 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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 METRIC_PRODUCER_H |
| 18 | #define METRIC_PRODUCER_H |
| 19 | |
Yao Chen | 729093d | 2017-10-16 10:33:26 -0700 | [diff] [blame] | 20 | #include "condition/ConditionWizard.h" |
Joe Onorato | 9fc9edf | 2017-10-15 20:08:52 -0700 | [diff] [blame] | 21 | #include "matchers/matcher_util.h" |
| 22 | #include "packages/PackageInfoListener.h" |
| 23 | |
Yao Chen | 44cf27c | 2017-09-14 22:32:50 -0700 | [diff] [blame] | 24 | #include <log/logprint.h> |
Yao Chen | caf339d | 2017-10-06 16:01:10 -0700 | [diff] [blame] | 25 | #include <utils/RefBase.h> |
Yao Chen | 729093d | 2017-10-16 10:33:26 -0700 | [diff] [blame] | 26 | #include "frameworks/base/cmds/statsd/src/stats_log.pb.h" |
Yao Chen | 44cf27c | 2017-09-14 22:32:50 -0700 | [diff] [blame] | 27 | |
| 28 | namespace android { |
| 29 | namespace os { |
| 30 | namespace statsd { |
| 31 | |
| 32 | // A MetricProducer is responsible for compute one single metrics, creating stats log report, and |
David Chen | de70169 | 2017-10-05 13:16:02 -0700 | [diff] [blame] | 33 | // writing the report to dropbox. MetricProducers should respond to package changes as required in |
| 34 | // PackageInfoListener, but if none of the metrics are slicing by package name, then the update can |
| 35 | // be a no-op. |
David Chen | f12b5c6 | 2017-10-13 15:54:03 -0700 | [diff] [blame] | 36 | class MetricProducer : public virtual PackageInfoListener { |
Yao Chen | 44cf27c | 2017-09-14 22:32:50 -0700 | [diff] [blame] | 37 | public: |
Yao Chen | 729093d | 2017-10-16 10:33:26 -0700 | [diff] [blame] | 38 | MetricProducer(const int64_t startTimeNs, const int conditionIndex, |
| 39 | const sp<ConditionWizard>& wizard) |
| 40 | : mStartTimeNs(startTimeNs), |
| 41 | mCurrentBucketStartTimeNs(startTimeNs), |
| 42 | mCondition(conditionIndex >= 0 ? false : true), |
| 43 | mWizard(wizard), |
| 44 | mConditionTrackerIndex(conditionIndex) { |
| 45 | // reuse the same map for non-sliced metrics too. this way, we avoid too many if-else. |
| 46 | mDimensionKeyMap[DEFAULT_DIMENSION_KEY] = std::vector<KeyValuePair>(); |
| 47 | }; |
Yao Chen | 44cf27c | 2017-09-14 22:32:50 -0700 | [diff] [blame] | 48 | virtual ~MetricProducer(){}; |
| 49 | |
Yao Chen | caf339d | 2017-10-06 16:01:10 -0700 | [diff] [blame] | 50 | // Consume the parsed stats log entry that already matched the "what" of the metric. |
Yao Chen | b704177 | 2017-10-20 16:59:25 -0700 | [diff] [blame] | 51 | void onMatchedLogEvent(const size_t matcherIndex, const LogEvent& event); |
Yao Chen | 44cf27c | 2017-09-14 22:32:50 -0700 | [diff] [blame] | 52 | |
Yao Chen | caf339d | 2017-10-06 16:01:10 -0700 | [diff] [blame] | 53 | virtual void onConditionChanged(const bool condition) = 0; |
| 54 | |
Yao Chen | 729093d | 2017-10-16 10:33:26 -0700 | [diff] [blame] | 55 | virtual void onSlicedConditionMayChange() = 0; |
| 56 | |
Yao Chen | 44cf27c | 2017-09-14 22:32:50 -0700 | [diff] [blame] | 57 | // This is called when the metric collecting is done, e.g., when there is a new configuration |
| 58 | // coming. MetricProducer should do the clean up, and dump existing data to dropbox. |
| 59 | virtual void finish() = 0; |
| 60 | |
Yao Chen | 729093d | 2017-10-16 10:33:26 -0700 | [diff] [blame] | 61 | virtual StatsLogReport onDumpReport() = 0; |
| 62 | |
| 63 | virtual bool isConditionSliced() const { |
| 64 | return mConditionSliced; |
| 65 | }; |
| 66 | |
yro | 69007c8 | 2017-10-26 20:42:57 -0700 | [diff] [blame^] | 67 | virtual size_t byteSize() = 0; |
| 68 | |
Yao Chen | 729093d | 2017-10-16 10:33:26 -0700 | [diff] [blame] | 69 | protected: |
| 70 | const uint64_t mStartTimeNs; |
| 71 | |
| 72 | uint64_t mCurrentBucketStartTimeNs; |
| 73 | |
| 74 | int64_t mBucketSizeNs; |
| 75 | |
| 76 | bool mCondition; |
| 77 | |
| 78 | bool mConditionSliced; |
| 79 | |
| 80 | sp<ConditionWizard> mWizard; |
| 81 | |
| 82 | int mConditionTrackerIndex; |
| 83 | |
| 84 | std::vector<KeyMatcher> mDimension; // The dimension defined in statsd_config |
| 85 | |
| 86 | // Keep the map from the internal HashableDimensionKey to std::vector<KeyValuePair> |
| 87 | // that StatsLogReport wants. |
| 88 | std::unordered_map<HashableDimensionKey, std::vector<KeyValuePair>> mDimensionKeyMap; |
| 89 | |
| 90 | std::vector<EventConditionLink> mConditionLinks; |
Yao Chen | b704177 | 2017-10-20 16:59:25 -0700 | [diff] [blame] | 91 | |
| 92 | /* |
| 93 | * Individual metrics can implement their own business logic here. All pre-processing is done. |
| 94 | * |
| 95 | * [matcherIndex]: the index of the matcher which matched this event. This is interesting to |
| 96 | * DurationMetric, because it has start/stop/stop_all 3 matchers. |
| 97 | * [eventKey]: the extracted dimension key for the final output. if the metric doesn't have |
| 98 | * dimensions, it will be DEFAULT_DIMENSION_KEY |
| 99 | * [conditionKey]: the keys of conditions which should be used to query the condition for this |
| 100 | * target event (from EventConditionLink). This is passed to individual metrics |
| 101 | * because DurationMetric needs it to be cached. |
| 102 | * [condition]: whether condition is met. If condition is sliced, this is the result coming from |
| 103 | * query with ConditionWizard; If condition is not sliced, this is the |
| 104 | * nonSlicedCondition. |
| 105 | * [event]: the log event, just in case the metric needs its data, e.g., EventMetric. |
| 106 | */ |
| 107 | virtual void onMatchedLogEventInternal( |
| 108 | const size_t matcherIndex, const HashableDimensionKey& eventKey, |
| 109 | const std::map<std::string, HashableDimensionKey>& conditionKey, bool condition, |
| 110 | const LogEvent& event) = 0; |
Yao Chen | 44cf27c | 2017-09-14 22:32:50 -0700 | [diff] [blame] | 111 | }; |
| 112 | |
| 113 | } // namespace statsd |
| 114 | } // namespace os |
| 115 | } // namespace android |
| 116 | #endif // METRIC_PRODUCER_H |