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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_RAPPOR_RAPPOR_H_ | |
6 #define COMPONENTS_RAPPOR_RAPPOR_H_ | |
7 | |
8 #include <string> | |
9 | |
10 #include "components/rappor/bloom_filter.h" | |
11 #include "components/rappor/byte_vector_utils.h" | |
12 #include "components/rappor/rappor_parameters.h" | |
13 | |
14 namespace rappor { | |
15 | |
16 // A RapporMetric is an object that collects string samples into a Bloom filter, | |
17 // and generates randomized reports about the collected data. | |
18 // | |
19 // For a full description of the rappor metrics, see | |
20 // http://www.chromium.org/developers/design-documents/rappor | |
21 class RapporMetric { | |
22 public: | |
23 explicit RapporMetric(const std::string& metric_name, | |
24 const RapporParameters& parameters, | |
25 int32_t cohort); | |
Ilya Sherman
2014/02/13 01:39:03
nit: Please document the parameters, or at least d
Steven Holte
2014/02/13 05:11:12
Done.
| |
26 ~RapporMetric(); | |
27 | |
28 // Record additional samples in the Bloom filter. | |
Ilya Sherman
2014/02/13 01:39:03
nit: "Record additional samples" -> "Records an ad
Steven Holte
2014/02/13 05:11:12
Done.
| |
29 void AddSample(const std::string& str); | |
30 | |
31 // Retrieves the current Bloom filter bits. | |
Ilya Sherman
2014/02/13 01:39:03
nit: It's a little confusing throughout this CL th
Steven Holte
2014/02/13 05:11:12
Bits are the content, bytes are the format.
| |
32 const ByteVector& bytes() const { return bloom_.bytes(); } | |
33 | |
34 // Gets the parameter values this metric was constructed with. | |
35 const RapporParameters& parameters() const { return parameters_; } | |
36 | |
37 // Generates the bits to report for this metric. Using the secret as a seed, | |
38 // randomly selects bits for redaction. Then flips coins to generate the | |
39 // final report bits. | |
40 ByteVector GetReport(const std::string& secret) const; | |
41 | |
42 private: | |
43 const std::string metric_name_; | |
44 const RapporParameters parameters_; | |
45 BloomFilter bloom_; | |
Ilya Sherman
2014/02/13 01:39:03
nit: IMO "bloom_filter_" is a clearer, more descri
Steven Holte
2014/02/13 05:11:12
Done.
| |
46 | |
47 DISALLOW_COPY_AND_ASSIGN(RapporMetric); | |
48 }; | |
49 | |
50 } // namespace rappor | |
51 | |
52 #endif // COMPONENTS_RAPPOR_RAPPOR_H_ | |
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