components/metrics/net/net_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_NET_NET_METRICS_LOG_UPLOADER_H_
   6 #define COMPONENTS_METRICS_NET_NET_METRICS_LOG_UPLOADER_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "components/metrics/metrics_log_uploader.h"
  12 #include "net/url_request/url_fetcher_delegate.h"
  13
  14 namespace net {
  15 class URLFetcher;
  16 class URLRequestContextGetter;
  17 }
  18
  19 namespace metrics {
  20
  21 // Implementation of MetricsLogUploader using the Chrome network stack.
  22 class NetMetricsLogUploader : public MetricsLogUploader,
  23                               public net::URLFetcherDelegate {
  24  public:
  25   // Constructs a NetMetricsLogUploader with the specified request context and
  26   // other params (see comments on MetricsLogUploader for details). The caller
  27   // must ensure that |request_context_getter| remains valid for the lifetime
  28   // of this class.
  29   NetMetricsLogUploader(net::URLRequestContextGetter* request_context_getter,
  30                         const std::string& server_url,
  31                         const std::string& mime_type,
  32                         const base::Callback<void(int)>& on_upload_complete);
  33   ~NetMetricsLogUploader() override;
  34
  35   // MetricsLogUploader:
  36   bool UploadLog(const std::string& compressed_log_data,
  37                  const std::string& log_hash) override;
  38
  39  private:
  40   // net::URLFetcherDelegate:
  41   void OnURLFetchComplete(const net::URLFetcher* source) override;
  42
  43   // The request context for fetches done using the network stack.
  44   net::URLRequestContextGetter* const request_context_getter_;
  45
  46   // The outstanding transmission appears as a URL Fetch operation.
  47   scoped_ptr<net::URLFetcher> current_fetch_;
  48
  49   DISALLOW_COPY_AND_ASSIGN(NetMetricsLogUploader);
  50 };
  51
  52 }  // namespace metrics
  53
  54 #endif  // COMPONENTS_METRICS_NET_NET_METRICS_LOG_UPLOADER_H_