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      1 //
      2 // Copyright (C) 2015 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 UPDATE_ENGINE_WEAVE_SERVICE_H_
     18 #define UPDATE_ENGINE_WEAVE_SERVICE_H_
     19 
     20 #include <memory>
     21 #include <string>
     22 
     23 #include <base/memory/weak_ptr.h>
     24 #include <libweaved/command.h>
     25 #include <libweaved/service.h>
     26 
     27 #include "update_engine/weave_service_interface.h"
     28 
     29 namespace chromeos_update_engine {
     30 
     31 class WeaveService : public WeaveServiceInterface {
     32  public:
     33   WeaveService() = default;
     34   ~WeaveService() override = default;
     35 
     36   bool Init(DelegateInterface* delegate);
     37 
     38   // ServiceObserverInterface overrides.
     39   void SendStatusUpdate(int64_t last_checked_time,
     40                         double progress,
     41                         update_engine::UpdateStatus status,
     42                         const std::string& new_version,
     43                         int64_t new_size) override;
     44   void SendChannelChangeUpdate(const std::string& tracking_channel) override;
     45   void SendPayloadApplicationComplete(ErrorCode error_code) override {}
     46 
     47  private:
     48   // Force a weave update.
     49   void UpdateWeaveState();
     50 
     51   void OnWeaveServiceConnected(const std::weak_ptr<weaved::Service>& service);
     52 
     53   // Weave command handlers. These are called from the message loop whenever a
     54   // command is received and dispatch the synchronous call to the |delegate_|.
     55   void OnCheckForUpdates(std::unique_ptr<weaved::Command> cmd);
     56   void OnTrackChannel(std::unique_ptr<weaved::Command> cmd);
     57 
     58   WeaveServiceInterface::DelegateInterface* delegate_{nullptr};
     59 
     60   std::unique_ptr<weaved::Service::Subscription> weave_service_subscription_;
     61   std::weak_ptr<weaved::Service> weave_service_;
     62 };
     63 
     64 }  // namespace chromeos_update_engine
     65 
     66 #endif  // UPDATE_ENGINE_WEAVE_SERVICE_H_
     67