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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef COMPONENTS_RAPPOR_LOG_UPLOADER_H_ | |
6 #define COMPONENTS_RAPPOR_LOG_UPLOADER_H_ | |
7 | |
8 #include <queue> | |
9 #include <string> | |
10 | |
11 #include "base/memory/weak_ptr.h" | |
12 #include "base/time/time.h" | |
13 #include "base/timer/timer.h" | |
14 #include "net/url_request/url_fetcher.h" | |
15 #include "net/url_request/url_fetcher_delegate.h" | |
16 #include "net/url_request/url_request_context_getter.h" | |
17 | |
18 namespace rappor { | |
19 | |
20 // This class handles uploading logs to | |
jwd
2013/12/16 17:04:03
Looks like you're missing an end of
Steven Holte
2013/12/16 23:02:16
Done.
| |
21 class LogUploader : public net::URLFetcherDelegate { | |
22 public: | |
23 LogUploader(const char* server_url, const char* mime_type); | |
24 | |
25 void SetRequestContext(net::URLRequestContextGetter* request_context); | |
26 | |
27 void QueueLog(const std::string& logData); | |
28 | |
29 private: | |
30 // The server URL to upload logs to. | |
31 const char* server_url_; | |
32 | |
33 // The mime type to specify on uploaded logs. | |
34 const char* mime_type_; | |
35 | |
36 net::URLRequestContextGetter* request_context_; | |
37 | |
38 // The outstanding transmission appears as a URL Fetch operation. | |
39 scoped_ptr<net::URLFetcher> current_fetch_; | |
40 | |
41 // The logs that still need to be uploaded. | |
42 std::queue<std::string> queued_logs_; | |
43 | |
44 base::OneShotTimer<LogUploader> upload_timer_; | |
45 | |
46 // Indicates that the last triggered upload hasn't resolved yet. | |
47 bool callback_pending_; | |
48 | |
49 // The interval between being told an upload is done and starting the next | |
50 // upload. | |
51 base::TimeDelta upload_interval_; | |
52 | |
53 // Starts transmission of the next log. | |
54 void StartScheduledUpload(); | |
55 | |
56 // Schedules a future call to StartScheduledUpload if one isn't already | |
57 // pending. | |
58 void ScheduleNextUpload(); | |
59 | |
60 // Increases the upload interval each time it's called, to handle the case | |
61 // where the server is having issues. | |
62 void BackOffUploadInterval(); | |
63 | |
64 // Implementation of net::URLFetcherDelegate. Called after transmission | |
65 // completes (either successfully or with failure). | |
66 virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE; | |
67 | |
68 // Called when the upload is completed. | |
69 void UploadFinished(bool server_is_healthy, bool more_logs_remaining); | |
70 }; | |
71 | |
72 } // namespace rappor | |
73 | |
74 #endif // COMPONENTS_RAPPOR_LOG_UPLOADER_H_ | |
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