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1 // Copyright (c) 2012 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 "chrome/browser/extensions/api/metrics/metrics.h" | |
6 | |
7 #include <algorithm> | |
8 | |
9 #include "base/metrics/histogram.h" | |
10 #include "chrome/common/extensions/extension.h" | |
11 #include "content/public/browser/user_metrics.h" | |
12 | |
13 namespace extensions { | |
14 | |
15 namespace { | |
16 | |
17 const size_t kMaxBuckets = 10000; // We don't ever want more than these many | |
18 // buckets; there is no real need for them | |
19 // and would cause crazy memory usage | |
20 } // namespace | |
21 | |
22 bool MetricsRecordUserActionFunction::RunImpl() { | |
23 std::string name; | |
24 EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &name)); | |
25 | |
26 content::RecordComputedAction(name); | |
27 return true; | |
28 } | |
29 | |
30 bool MetricsHistogramHelperFunction::GetNameAndSample(std::string* name, | |
31 int* sample) { | |
32 EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, name)); | |
33 EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(1, sample)); | |
34 return true; | |
35 } | |
36 | |
37 bool MetricsHistogramHelperFunction::RecordValue( | |
38 const std::string& name, | |
39 base::HistogramType type, | |
40 int min, int max, size_t buckets, | |
41 int sample) { | |
42 // Make sure toxic values don't get to internal code. | |
43 // Fix for maximums | |
44 min = std::min(min, INT_MAX - 3); | |
45 max = std::min(max, INT_MAX - 3); | |
46 buckets = std::min(buckets, kMaxBuckets); | |
47 // Fix for minimums. | |
48 min = std::max(min, 1); | |
49 max = std::max(max, min + 1); | |
50 buckets = std::max(buckets, static_cast<size_t>(3)); | |
51 // Trim buckets down to a maximum of the given range + over/underflow buckets | |
52 if (buckets > static_cast<size_t>(max - min + 2)) | |
53 buckets = max - min + 2; | |
54 | |
55 base::HistogramBase* counter; | |
56 if (type == base::LINEAR_HISTOGRAM) { | |
57 counter = base::LinearHistogram::FactoryGet( | |
58 name, min, max, buckets, | |
59 base::HistogramBase::kUmaTargetedHistogramFlag); | |
60 } else { | |
61 counter = base::Histogram::FactoryGet( | |
62 name, min, max, buckets, | |
63 base::HistogramBase::kUmaTargetedHistogramFlag); | |
64 } | |
65 | |
66 counter->Add(sample); | |
67 return true; | |
68 } | |
69 | |
70 bool MetricsRecordValueFunction::RunImpl() { | |
71 int sample; | |
72 EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(1, &sample)); | |
73 | |
74 // Get the histogram parameters from the metric type object. | |
75 DictionaryValue* metric_type; | |
76 EXTENSION_FUNCTION_VALIDATE(args_->GetDictionary(0, &metric_type)); | |
77 | |
78 std::string name; | |
79 std::string type; | |
80 int min; | |
81 int max; | |
82 int buckets; | |
83 EXTENSION_FUNCTION_VALIDATE(metric_type->GetString("metricName", &name)); | |
84 EXTENSION_FUNCTION_VALIDATE(metric_type->GetString("type", &type)); | |
85 EXTENSION_FUNCTION_VALIDATE(metric_type->GetInteger("min", &min)); | |
86 EXTENSION_FUNCTION_VALIDATE(metric_type->GetInteger("max", &max)); | |
87 EXTENSION_FUNCTION_VALIDATE(metric_type->GetInteger("buckets", &buckets)); | |
88 | |
89 base::HistogramType histogram_type(type == "histogram-linear" ? | |
90 base::LINEAR_HISTOGRAM : base::HISTOGRAM); | |
91 return RecordValue(name, histogram_type, min, max, buckets, sample); | |
92 } | |
93 | |
94 bool MetricsRecordPercentageFunction::RunImpl() { | |
95 std::string name; | |
96 int sample; | |
97 EXTENSION_FUNCTION_VALIDATE(GetNameAndSample(&name, &sample)); | |
98 return RecordValue(name, base::LINEAR_HISTOGRAM, 1, 101, 102, sample); | |
99 } | |
100 | |
101 bool MetricsRecordCountFunction::RunImpl() { | |
102 std::string name; | |
103 int sample; | |
104 EXTENSION_FUNCTION_VALIDATE(GetNameAndSample(&name, &sample)); | |
105 return RecordValue(name, base::HISTOGRAM, 1, 1000000, 50, sample); | |
106 } | |
107 | |
108 bool MetricsRecordSmallCountFunction::RunImpl() { | |
109 std::string name; | |
110 int sample; | |
111 EXTENSION_FUNCTION_VALIDATE(GetNameAndSample(&name, &sample)); | |
112 return RecordValue(name, base::HISTOGRAM, 1, 100, 50, sample); | |
113 } | |
114 | |
115 bool MetricsRecordMediumCountFunction::RunImpl() { | |
116 std::string name; | |
117 int sample; | |
118 EXTENSION_FUNCTION_VALIDATE(GetNameAndSample(&name, &sample)); | |
119 return RecordValue(name, base::HISTOGRAM, 1, 10000, 50, sample); | |
120 } | |
121 | |
122 bool MetricsRecordTimeFunction::RunImpl() { | |
123 std::string name; | |
124 int sample; | |
125 EXTENSION_FUNCTION_VALIDATE(GetNameAndSample(&name, &sample)); | |
126 static const int kTenSecMs = 10 * 1000; | |
127 return RecordValue(name, base::HISTOGRAM, 1, kTenSecMs, 50, sample); | |
128 } | |
129 | |
130 bool MetricsRecordMediumTimeFunction::RunImpl() { | |
131 std::string name; | |
132 int sample; | |
133 EXTENSION_FUNCTION_VALIDATE(GetNameAndSample(&name, &sample)); | |
134 static const int kThreeMinMs = 3 * 60 * 1000; | |
135 return RecordValue(name, base::HISTOGRAM, 1, kThreeMinMs, 50, sample); | |
136 } | |
137 | |
138 bool MetricsRecordLongTimeFunction::RunImpl() { | |
139 std::string name; | |
140 int sample; | |
141 EXTENSION_FUNCTION_VALIDATE(GetNameAndSample(&name, &sample)); | |
142 static const int kOneHourMs = 60 * 60 * 1000; | |
143 return RecordValue(name, base::HISTOGRAM, 1, kOneHourMs, 50, sample); | |
144 } | |
145 | |
146 } // namespace extensions | |
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