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
14namespace net {
15class URLFetcher;
16class URLRequestContextGetter;
17}
18
19namespace metrics {
20
21// Implementation of MetricsLogUploader using the Chrome network stack.
22class 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  virtual ~NetMetricsLogUploader();
34
35  // MetricsLogUploader:
36  virtual bool UploadLog(const std::string& compressed_log_data,
37                         const std::string& log_hash) OVERRIDE;
38
39 private:
40  // net::URLFetcherDelegate:
41  virtual 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_
55