components/translate/core/common/translate_metrics.cc

   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 #include "components/translate/core/common/translate_metrics.h"
   6
   7 #include "base/basictypes.h"
   8 #include "base/metrics/histogram.h"
   9 #include "url/url_constants.h"
  10
  11 namespace translate {
  12
  13 namespace {
  14
  15 // Constant string values to indicate UMA names. All entries should have
  16 // a corresponding index in MetricsNameIndex and an entry in |kMetricsEntries|.
  17 const char kRenderer4LanguageDetection[] = "Renderer4.LanguageDetection";
  18 const char kTranslateContentLanguage[] = "Translate.ContentLanguage";
  19 const char kTranslateHtmlLang[] = "Translate.HtmlLang";
  20 const char kTranslateLanguageVerification[] = "Translate.LanguageVerification";
  21 const char kTranslateTimeToBeReady[] = "Translate.TimeToBeReady";
  22 const char kTranslateTimeToLoad[] = "Translate.TimeToLoad";
  23 const char kTranslateTimeToTranslate[] = "Translate.TimeToTranslate";
  24 const char kTranslateUserActionDuration[] = "Translate.UserActionDuration";
  25 const char kTranslatePageScheme[] = "Translate.PageScheme";
  26 const char kTranslateSimilarLanguageMatch[] = "Translate.SimilarLanguageMatch";
  27
  28 struct MetricsEntry {
  29   MetricsNameIndex index;
  30   const char* const name;
  31 };
  32
  33 // This entry table should be updated when new UMA items are added.
  34 const MetricsEntry kMetricsEntries[] = {
  35     {UMA_LANGUAGE_DETECTION, kRenderer4LanguageDetection},
  36     {UMA_CONTENT_LANGUAGE, kTranslateContentLanguage},
  37     {UMA_HTML_LANG, kTranslateHtmlLang},
  38     {UMA_LANGUAGE_VERIFICATION, kTranslateLanguageVerification},
  39     {UMA_TIME_TO_BE_READY, kTranslateTimeToBeReady},
  40     {UMA_TIME_TO_LOAD, kTranslateTimeToLoad},
  41     {UMA_TIME_TO_TRANSLATE, kTranslateTimeToTranslate},
  42     {UMA_USER_ACTION_DURATION, kTranslateUserActionDuration},
  43     {UMA_PAGE_SCHEME, kTranslatePageScheme},
  44     {UMA_SIMILAR_LANGUAGE_MATCH, kTranslateSimilarLanguageMatch}, };
  45
  46 static_assert(arraysize(kMetricsEntries) == UMA_MAX,
  47               "kMetricsEntries should have UMA_MAX elements");
  48
  49 LanguageCheckType GetLanguageCheckMetric(const std::string& provided_code,
  50                                          const std::string& revised_code) {
  51   if (provided_code.empty())
  52     return LANGUAGE_NOT_PROVIDED;
  53   else if (provided_code == revised_code)
  54     return LANGUAGE_VALID;
  55   return LANGUAGE_INVALID;
  56 }
  57
  58 }  // namespace
  59
  60 void ReportContentLanguage(const std::string& provided_code,
  61                            const std::string& revised_code) {
  62   UMA_HISTOGRAM_ENUMERATION(kTranslateContentLanguage,
  63                             GetLanguageCheckMetric(provided_code, revised_code),
  64                             LANGUAGE_MAX);
  65 }
  66
  67 void ReportHtmlLang(const std::string& provided_code,
  68                     const std::string& revised_code) {
  69   UMA_HISTOGRAM_ENUMERATION(kTranslateHtmlLang,
  70                             GetLanguageCheckMetric(provided_code, revised_code),
  71                             LANGUAGE_MAX);
  72 }
  73
  74 void ReportLanguageVerification(LanguageVerificationType type) {
  75   UMA_HISTOGRAM_ENUMERATION(kTranslateLanguageVerification,
  76                             type,
  77                             LANGUAGE_VERIFICATION_MAX);
  78 }
  79
  80 void ReportTimeToBeReady(double time_in_msec) {
  81   UMA_HISTOGRAM_MEDIUM_TIMES(
  82       kTranslateTimeToBeReady,
  83       base::TimeDelta::FromMicroseconds(
  84           static_cast<int64>(time_in_msec * 1000.0)));
  85 }
  86
  87 void ReportTimeToLoad(double time_in_msec) {
  88   UMA_HISTOGRAM_MEDIUM_TIMES(
  89       kTranslateTimeToLoad,
  90       base::TimeDelta::FromMicroseconds(
  91           static_cast<int64>(time_in_msec * 1000.0)));
  92 }
  93
  94 void ReportTimeToTranslate(double time_in_msec) {
  95   UMA_HISTOGRAM_MEDIUM_TIMES(
  96       kTranslateTimeToTranslate,
  97       base::TimeDelta::FromMicroseconds(
  98           static_cast<int64>(time_in_msec * 1000.0)));
  99 }
 100
 101 void ReportUserActionDuration(base::TimeTicks begin, base::TimeTicks end) {
 102   UMA_HISTOGRAM_LONG_TIMES(kTranslateUserActionDuration, end - begin);
 103 }
 104
 105 void ReportPageScheme(const std::string& scheme) {
 106   SchemeType type = SCHEME_OTHERS;
 107   if (scheme == url::kHttpScheme)
 108     type = SCHEME_HTTP;
 109   else if (scheme == url::kHttpsScheme)
 110     type = SCHEME_HTTPS;
 111   UMA_HISTOGRAM_ENUMERATION(kTranslatePageScheme, type, SCHEME_MAX);
 112 }
 113
 114 void ReportLanguageDetectionTime(base::TimeTicks begin, base::TimeTicks end) {
 115   UMA_HISTOGRAM_MEDIUM_TIMES(kRenderer4LanguageDetection, end - begin);
 116 }
 117
 118 void ReportSimilarLanguageMatch(bool match) {
 119   UMA_HISTOGRAM_BOOLEAN(kTranslateSimilarLanguageMatch, match);
 120 }
 121
 122 const char* GetMetricsName(MetricsNameIndex index) {
 123   for (size_t i = 0; i < arraysize(kMetricsEntries); ++i) {
 124     if (kMetricsEntries[i].index == index)
 125       return kMetricsEntries[i].name;
 126   }
 127   NOTREACHED();
 128   return NULL;
 129 }
 130
 131 }  // namespace translate