| /* |
| * Copyright (C) 2018 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 <android/os/IPendingIntentRef.h> |
| #include <android/os/IStatsCompanionService.h> |
| #include <utils/RefBase.h> |
| |
| #include "config/ConfigKey.h" |
| #include "frameworks/base/cmds/statsd/src/statsd_config.pb.h" // subscription |
| #include "android/os/StatsDimensionsValue.h" |
| #include "HashableDimensionKey.h" |
| |
| #include <mutex> |
| #include <unordered_map> |
| #include <vector> |
| |
| namespace android { |
| namespace os { |
| namespace statsd { |
| |
| // Reports information to subscribers. |
| // Single instance shared across the process. All methods are thread safe. |
| class SubscriberReporter { |
| public: |
| /** Get (singleton) instance of SubscriberReporter. */ |
| static SubscriberReporter& getInstance() { |
| static SubscriberReporter subscriberReporter; |
| return subscriberReporter; |
| } |
| |
| ~SubscriberReporter(){}; |
| SubscriberReporter(SubscriberReporter const&) = delete; |
| void operator=(SubscriberReporter const&) = delete; |
| |
| /** |
| * Stores the given intentSender, associating it with the given (configKey, subscriberId) pair. |
| */ |
| void setBroadcastSubscriber(const ConfigKey& configKey, |
| int64_t subscriberId, |
| const sp<IPendingIntentRef>& pir); |
| |
| /** |
| * Erases any intentSender information from the given (configKey, subscriberId) pair. |
| */ |
| void unsetBroadcastSubscriber(const ConfigKey& configKey, int64_t subscriberId); |
| |
| /** |
| * Sends a broadcast via the intentSender previously stored for the |
| * given (configKey, subscriberId) pair by setBroadcastSubscriber. |
| * Information about the subscriber, as well as information extracted from the dimKey, is sent. |
| */ |
| void alertBroadcastSubscriber(const ConfigKey& configKey, |
| const Subscription& subscription, |
| const MetricDimensionKey& dimKey) const; |
| |
| sp<IPendingIntentRef> getBroadcastSubscriber(const ConfigKey& configKey, int64_t subscriberId); |
| |
| static StatsDimensionsValue getStatsDimensionsValue(const HashableDimensionKey& dim); |
| |
| private: |
| SubscriberReporter() {}; |
| |
| mutable std::mutex mLock; |
| |
| /** Binder interface for communicating with StatsCompanionService. */ |
| sp<IStatsCompanionService> mStatsCompanionService = nullptr; |
| |
| /** Maps <ConfigKey, SubscriberId> -> IPendingIntentRef (which represents a PendingIntent). */ |
| std::unordered_map<ConfigKey, |
| std::unordered_map<int64_t, sp<IPendingIntentRef>>> mIntentMap; |
| |
| /** |
| * Sends a broadcast via the given intentSender (using mStatsCompanionService), along |
| * with the information in the other parameters. |
| */ |
| void sendBroadcastLocked(const sp<IPendingIntentRef>& pir, |
| const ConfigKey& configKey, |
| const Subscription& subscription, |
| const std::vector<String16>& cookies, |
| const MetricDimensionKey& dimKey) const; |
| }; |
| |
| } // namespace statsd |
| } // namespace os |
| } // namespace android |