components/metrics/metrics_log_uploader.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_METRICS_METRICS_LOG_UPLOADER_H_
   6 #define COMPONENTS_METRICS_METRICS_LOG_UPLOADER_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/callback.h"
  12 #include "base/macros.h"
  13
  14 namespace metrics {
  15
  16 // MetricsLogUploader is an abstract base class for uploading UMA logs on behalf
  17 // of MetricsService.
  18 class MetricsLogUploader {
  19  public:
  20   // Constructs the uploader that will upload logs to the specified |server_url|
  21   // with the given |mime_type|. The |on_upload_complete| callback will be
  22   // called with the HTTP response code of the upload or with -1 on an error.
  23   MetricsLogUploader(const std::string& server_url,
  24                      const std::string& mime_type,
  25                      const base::Callback<void(int)>& on_upload_complete);
  26   virtual ~MetricsLogUploader();
  27
  28   // Uploads a log with the specified |compressed_log_data| and |log_hash|.
  29   // |log_hash| is expected to be the hex-encoded SHA1 hash of the log data
  30   // before compression.
  31   virtual bool UploadLog(const std::string& compressed_log_data,
  32                          const std::string& log_hash) = 0;
  33
  34  protected:
  35   const std::string server_url_;
  36   const std::string mime_type_;
  37   const base::Callback<void(int)> on_upload_complete_;
  38
  39  private:
  40   DISALLOW_COPY_AND_ASSIGN(MetricsLogUploader);
  41 };
  42
  43 }  // namespace metrics
  44
  45 #endif  // COMPONENTS_METRICS_METRICS_LOG_UPLOADER_H_