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      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_
     65