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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
ncarter (slow)
2016/12/05 19:50:50
2016
Navid Zolghadr
2016/12/06 19:10:33
Done.
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2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef COMPONENTS_RAPPOR_SAMPLE_H_ | 5 #ifndef COMPONENTS_RAPPOR_PUBLIC_SAMPLE_H_ |
6 #define COMPONENTS_RAPPOR_SAMPLE_H_ | 6 #define COMPONENTS_RAPPOR_PUBLIC_SAMPLE_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 #include <stdint.h> | 9 #include <stdint.h> |
10 | 10 |
11 #include <map> | 11 #include <map> |
12 #include <string> | 12 #include <string> |
13 | 13 |
14 #include "base/macros.h" | 14 #include "base/macros.h" |
15 #include "components/rappor/rappor_parameters.h" | 15 #include "components/rappor/public/rappor_parameters.h" |
16 | 16 |
17 namespace rappor { | 17 namespace rappor { |
18 | 18 |
19 class RapporReports; | 19 class RapporReports; |
20 class RapporService; | 20 class RapporServiceImpl; |
21 class TestSamplerFactory; | 21 class TestSamplerFactory; |
22 | 22 |
23 // Sample is a container for information about a single instance of some event | 23 // Sample is a container for information about a single instance of some event |
24 // we are sending Rappor data about. It may contain multiple different fields, | 24 // we are sending Rappor data about. It may contain multiple different fields, |
25 // which describe different details of the event, and they will be sent in the | 25 // which describe different details of the event, and they will be sent in the |
26 // same Rappor report, enabling analysis of correlations between those fields. | 26 // same Rappor report, enabling analysis of correlations between those fields. |
27 class Sample { | 27 class Sample { |
28 public: | 28 public: |
29 virtual ~Sample(); | 29 virtual ~Sample(); |
30 | 30 |
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53 | 53 |
54 // Generate randomized reports and store them in |reports|. | 54 // Generate randomized reports and store them in |reports|. |
55 virtual void ExportMetrics(const std::string& secret, | 55 virtual void ExportMetrics(const std::string& secret, |
56 const std::string& metric_name, | 56 const std::string& metric_name, |
57 RapporReports* reports) const; | 57 RapporReports* reports) const; |
58 | 58 |
59 const RapporParameters& parameters() { return parameters_; } | 59 const RapporParameters& parameters() { return parameters_; } |
60 | 60 |
61 private: | 61 private: |
62 friend class TestSamplerFactory; | 62 friend class TestSamplerFactory; |
63 friend class RapporService; | 63 friend class RapporServiceImpl; |
64 friend class TestSample; | 64 friend class TestSample; |
65 | 65 |
66 // Constructs a sample. Instead of calling this directly, call | 66 // Constructs a sample. Instead of calling this directly, call |
67 // RapporService::MakeSampleObj to create a sample. | 67 // RapporService::MakeSampleObj to create a sample. |
68 Sample(int32_t cohort_seed, const RapporParameters& parameters); | 68 Sample(int32_t cohort_seed, const RapporParameters& parameters); |
69 | 69 |
70 const RapporParameters parameters_; | 70 const RapporParameters parameters_; |
71 | 71 |
72 // Offset used for bloom filter hash functions. | 72 // Offset used for bloom filter hash functions. |
73 uint32_t bloom_offset_; | 73 uint32_t bloom_offset_; |
74 | 74 |
75 struct FieldInfo { | 75 struct FieldInfo { |
76 // Size of the field, in bytes. | 76 // Size of the field, in bytes. |
77 size_t size; | 77 size_t size; |
78 // The non-randomized report value for the field. | 78 // The non-randomized report value for the field. |
79 uint64_t value; | 79 uint64_t value; |
80 // The noise level to use when creating a report for the field. | 80 // The noise level to use when creating a report for the field. |
81 NoiseLevel noise_level; | 81 NoiseLevel noise_level; |
82 }; | 82 }; |
83 | 83 |
84 // Information about all recorded fields. | 84 // Information about all recorded fields. |
85 std::map<std::string, FieldInfo> field_info_; | 85 std::map<std::string, FieldInfo> field_info_; |
86 | 86 |
87 DISALLOW_COPY_AND_ASSIGN(Sample); | 87 DISALLOW_COPY_AND_ASSIGN(Sample); |
88 }; | 88 }; |
89 | 89 |
90 } // namespace rappor | 90 } // namespace rappor |
91 | 91 |
92 #endif // COMPONENTS_RAPPOR_SAMPLE_H_ | 92 #endif // COMPONENTS_RAPPOR_PUBLIC_SAMPLE_H_ |
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