components/feedback/feedback_report.h

   1 // Copyright 2014 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_FEEDBACK_FEEDBACK_REPORT_H_
   6 #define COMPONENTS_FEEDBACK_FEEDBACK_REPORT_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/callback_forward.h"
  12 #include "base/files/file_path.h"
  13 #include "base/memory/ref_counted.h"
  14 #include "base/time/time.h"
  15
  16 namespace base {
  17 class SequencedTaskRunner;
  18 }
  19
  20 namespace feedback {
  21
  22 typedef base::Callback<void(const std::string&)> QueueCallback;
  23
  24 // This class holds a feedback report. Once a report is created, a disk backup
  25 // for it is created automatically. This backup needs to explicitly be
  26 // deleted by calling DeleteReportOnDisk.
  27 class FeedbackReport : public base::RefCounted<FeedbackReport> {
  28  public:
  29   FeedbackReport(const base::FilePath& path,
  30                  const base::Time& upload_at,
  31                  const std::string& data,
  32                  scoped_refptr<base::SequencedTaskRunner> task_runner);
  33
  34   // Stops the disk write of the report and deletes the report file if already
  35   // written.
  36   void DeleteReportOnDisk();
  37
  38   const base::Time& upload_at() const { return upload_at_; }
  39   const std::string& data() const { return data_; }
  40
  41   // Loads the reports still on disk and queues then using the given callback.
  42   // This call blocks on the file reads.
  43   static void LoadReportsAndQueue(const base::FilePath& user_dir,
  44                                   QueueCallback callback);
  45
  46  private:
  47   friend class base::RefCounted<FeedbackReport>;
  48   virtual ~FeedbackReport();
  49
  50   // Name of the file corresponding to this report.
  51   base::FilePath file_;
  52
  53   base::FilePath reports_path_;
  54   base::Time upload_at_;  // Upload this report at or after this time.
  55   std::string data_;
  56
  57   scoped_refptr<base::SequencedTaskRunner> reports_task_runner_;
  58
  59   DISALLOW_COPY_AND_ASSIGN(FeedbackReport);
  60 };
  61
  62 }  // namespace feedback
  63
  64 #endif  // COMPONENTS_FEEDBACK_FEEDBACK_REPORT_H_