| // Copyright 2018 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 COMPONENTS_JOURNEY_JOURNEY_INFO_FETCHER_H_ |
| #define COMPONENTS_JOURNEY_JOURNEY_INFO_FETCHER_H_ |
| |
| #include <memory> |
| #include <string> |
| #include <utility> |
| #include <vector> |
| |
| #include "base/callback.h" |
| #include "base/containers/queue.h" |
| #include "services/identity/public/cpp/primary_account_access_token_fetcher.h" |
| |
| namespace base { |
| class Value; |
| } // namespace base |
| |
| namespace identity { |
| class IdentityManager; |
| } // namespace identity |
| |
| namespace network { |
| class SharedURLLoaderFactory; |
| } // namespace network |
| |
| namespace journey { |
| |
| class JourneyInfoJsonRequest; |
| |
| using FetchResponseAvailableCallback = |
| base::OnceCallback<void(std::unique_ptr<base::Value>, const std::string&)>; |
| |
| // This class is used to fetch SwitcherJourney information from the server. |
| class JourneyInfoFetcher { |
| public: |
| JourneyInfoFetcher( |
| identity::IdentityManager* identity_manager, |
| const scoped_refptr<network::SharedURLLoaderFactory>& loader_factory); |
| |
| ~JourneyInfoFetcher(); |
| |
| // This method fetches journey information based on |timestamps|, |
| // and calls back to |callback| when complete. |
| // TODO(meiliang): Add a parameter, GURL url, as the fetching url instead of |
| // hard code the url. |
| void FetchJourneyInfo(std::vector<int64_t> timestamps, |
| FetchResponseAvailableCallback callback); |
| |
| // This method gets last json response as a string. |
| const std::string& GetLastJsonForDebugging() const; |
| |
| private: |
| void RequestOAuthTokenService(); |
| |
| void StartRequest(const std::vector<int64_t>& timestamps, |
| FetchResponseAvailableCallback callback, |
| const std::string& oauth_access_token); |
| |
| void AccessTokenFetchFinished(GoogleServiceAuthError error, |
| identity::AccessTokenInfo access_token_info); |
| |
| void AccessTokenError(const GoogleServiceAuthError& error); |
| |
| void FetchFinished(FetchResponseAvailableCallback callback, |
| std::unique_ptr<base::Value> result, |
| const std::string& error_detail); |
| |
| void JsonRequestDone(std::unique_ptr<JourneyInfoJsonRequest> request, |
| FetchResponseAvailableCallback callback, |
| std::unique_ptr<base::Value> result, |
| const std::string& error_detail); |
| |
| identity::IdentityManager* identity_manager_; |
| |
| std::unique_ptr<identity::PrimaryAccountAccessTokenFetcher> token_fetcher_; |
| |
| const scoped_refptr<network::SharedURLLoaderFactory> loader_factory_; |
| |
| std::string last_fetch_json_; |
| |
| // This queues stores requests that wait for an access token. |
| base::queue<std::pair<std::vector<int64_t>, FetchResponseAvailableCallback>> |
| pending_requests_; |
| |
| DISALLOW_COPY_AND_ASSIGN(JourneyInfoFetcher); |
| }; |
| |
| } // namespace journey |
| |
| #endif // COMPONENTS_JOURNEY_JOURNEY_INFO_FETCHER_H_ |