chrome/browser/feedback/feedback_uploader.h

   1 // Copyright 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 CHROME_BROWSER_FEEDBACK_FEEDBACK_UPLOADER_H_
   6 #define CHROME_BROWSER_FEEDBACK_FEEDBACK_UPLOADER_H_
   7
   8 #include <queue>
   9 #include <string>
  10
  11 #include "base/basictypes.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/memory/weak_ptr.h"
  14 #include "base/time/time.h"
  15 #include "base/timer/timer.h"
  16 #include "chrome/browser/feedback/feedback_uploader_delegate.h"
  17 #include "components/keyed_service/core/keyed_service.h"
  18
  19 namespace content {
  20 class BrowserContext;
  21 }
  22
  23 namespace feedback {
  24
  25 class FeedbackReport;
  26
  27 // FeedbackUploader is used to add a feedback report to the queue of reports
  28 // being uploaded. In case uploading a report fails, it is written to disk and
  29 // tried again when it's turn comes up next in the queue.
  30 class FeedbackUploader : public KeyedService,
  31                          public base::SupportsWeakPtr<FeedbackUploader> {
  32  public:
  33   explicit FeedbackUploader(content::BrowserContext* context);
  34   virtual ~FeedbackUploader();
  35
  36   // Queues a report for uploading.
  37   void QueueReport(const std::string& data);
  38
  39  private:
  40   friend class FeedbackUploaderTest;
  41   struct ReportsUploadTimeComparator {
  42     bool operator()(FeedbackReport* a, FeedbackReport* b) const;
  43   };
  44
  45   // Dispatches the report to be uploaded.
  46   void DispatchReport(const std::string& data);
  47
  48   // Update our timer for uploading the next report.
  49   void UpdateUploadTimer();
  50
  51   // Requeue this report with a delay.
  52   void RetryReport(const std::string& data);
  53
  54   void setup_for_test(const ReportDataCallback& dispatch_callback,
  55                       const base::TimeDelta& retry_delay);
  56
  57   // Browser context this uploader was created for.
  58   content::BrowserContext* context_;
  59   // Timer to upload the next report at.
  60   base::OneShotTimer<FeedbackUploader> upload_timer_;
  61   // Priority queue of reports prioritized by the time the report is supposed
  62   // to be uploaded at.
  63   std::priority_queue<scoped_refptr<FeedbackReport>,
  64                       std::vector<scoped_refptr<FeedbackReport> >,
  65                       ReportsUploadTimeComparator> reports_queue_;
  66
  67   ReportDataCallback dispatch_callback_;
  68   base::TimeDelta retry_delay_;
  69
  70   DISALLOW_COPY_AND_ASSIGN(FeedbackUploader);
  71 };
  72
  73 }  // namespace feedback
  74
  75 #endif  // CHROME_BROWSER_FEEDBACK_FEEDBACK_UPLOADER_H_