| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef REMOTING_BASE_TELEMETRY_LOG_WRITER_H_ |
| #define REMOTING_BASE_TELEMETRY_LOG_WRITER_H_ |
| |
| #include <string> |
| |
| #include "base/callback.h" |
| #include "base/containers/circular_deque.h" |
| #include "base/macros.h" |
| #include "base/threading/thread_checker.h" |
| #include "base/values.h" |
| #include "remoting/base/chromoting_event.h" |
| #include "remoting/base/chromoting_event_log_writer.h" |
| #include "remoting/base/oauth_token_getter.h" |
| #include "remoting/base/url_request.h" |
| |
| namespace remoting { |
| |
| // TelemetryLogWriter sends log entries (ChromotingEvent) to the telemetry |
| // server. |
| // Logs to be sent will be queued and sent when it is available. Logs failed |
| // to send will be retried for a few times and dropped if they still can't be |
| // sent. |
| // The log writer should be used entirely on one thread after it is created, |
| // unless otherwise noted. |
| class TelemetryLogWriter : public ChromotingEventLogWriter { |
| public: |
| TelemetryLogWriter(const std::string& telemetry_base_url, |
| std::unique_ptr<OAuthTokenGetter> token_getter); |
| |
| ~TelemetryLogWriter() override; |
| |
| void Init(std::unique_ptr<UrlRequestFactory> request_factory); |
| |
| // Push the log entry to the pending list and send out all the pending logs. |
| void Log(const ChromotingEvent& entry) override; |
| |
| private: |
| void SendPendingEntries(); |
| void PostJsonToServer(const std::string& json, |
| OAuthTokenGetter::Status status, |
| const std::string& user_email, |
| const std::string& access_token); |
| void OnSendLogResult(const remoting::UrlRequest::Result& result); |
| |
| THREAD_CHECKER(thread_checker_); |
| |
| std::string telemetry_base_url_; |
| std::unique_ptr<UrlRequestFactory> request_factory_; |
| std::unique_ptr<OAuthTokenGetter> token_getter_; |
| std::unique_ptr<UrlRequest> request_; |
| |
| // Entries to be sent. |
| base::circular_deque<ChromotingEvent> pending_entries_; |
| |
| // Entries being sent. |
| // These will be pushed back to pending_entries if error occurs. |
| base::circular_deque<ChromotingEvent> sending_entries_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TelemetryLogWriter); |
| }; |
| |
| } // namespace remoting |
| #endif // REMOTING_BASE_TELEMETRY_LOG_WRITER_H_ |