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      1 /*
      2  * Copyright (C) 2018 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 android_hardware_automotive_vehicle_V2_0_impl_JsonFakeValueGenerator_H_
     18 #define android_hardware_automotive_vehicle_V2_0_impl_JsonFakeValueGenerator_H_
     19 
     20 #include <atomic>
     21 #include <chrono>
     22 #include <condition_variable>
     23 #include <iostream>
     24 #include <thread>
     25 
     26 #include <json/json.h>
     27 
     28 #include "FakeValueGenerator.h"
     29 
     30 namespace android {
     31 namespace hardware {
     32 namespace automotive {
     33 namespace vehicle {
     34 namespace V2_0 {
     35 
     36 namespace impl {
     37 
     38 class JsonFakeValueGenerator : public FakeValueGenerator {
     39 private:
     40     using Nanos = std::chrono::nanoseconds;
     41     using Clock = std::chrono::steady_clock;
     42     using TimePoint = std::chrono::time_point<Clock, Nanos>;
     43 
     44     struct GeneratorCfg {
     45         size_t index;
     46         std::vector<VehiclePropValue> events;
     47     };
     48 
     49 public:
     50     JsonFakeValueGenerator(const OnHalEvent& onHalEvent);
     51     ~JsonFakeValueGenerator();
     52     StatusCode start(const VehiclePropValue& request) override;
     53     StatusCode stop(const VehiclePropValue& request) override;
     54 
     55 private:
     56     std::vector<VehiclePropValue> parseFakeValueJson(std::istream& is);
     57     void loop();
     58 
     59 private:
     60     OnHalEvent mOnHalEvent;
     61     std::thread mThread;
     62     mutable std::mutex mLock;
     63     std::condition_variable mCond;
     64     GeneratorCfg mGenCfg;
     65     std::atomic_bool mStopRequested{false};
     66 };
     67 
     68 }  // namespace impl
     69 
     70 }  // namespace V2_0
     71 }  // namespace vehicle
     72 }  // namespace automotive
     73 }  // namespace hardware
     74 }  // namespace android
     75 
     76 #endif  // android_hardware_automotive_vehicle_V2_0_impl_JsonFakeValueGenerator_H_
     77