1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/reporting/metrics/periodic_event_collector.h"
#include <memory>
#include <string>
#include <utility>
#include "base/check.h"
#include "base/time/time.h"
#include "components/reporting/metrics/collector_base.h"
#include "components/reporting/metrics/metric_event_observer.h"
#include "components/reporting/metrics/metric_rate_controller.h"
#include "components/reporting/metrics/sampler.h"
#include "components/reporting/proto/synced/metric_data.pb.h"
namespace reporting {
PeriodicEventCollector::PeriodicEventCollector(
Sampler* sampler,
std::unique_ptr<EventDetector> event_detector,
ReportingSettings* reporting_settings,
const std::string& rate_setting_path,
base::TimeDelta default_rate,
int rate_unit_to_ms)
: CollectorBase(sampler),
event_detector_(std::move(event_detector)),
rate_controller_(std::make_unique<MetricRateController>(
base::BindRepeating(&PeriodicEventCollector::Collect,
base::Unretained(this),
/*is_event_driven=*/false),
reporting_settings,
rate_setting_path,
default_rate,
rate_unit_to_ms)) {}
PeriodicEventCollector::~PeriodicEventCollector() = default;
void PeriodicEventCollector::SetOnEventObservedCallback(
MetricRepeatingCallback cb) {
CHECK(!on_event_observed_cb_);
on_event_observed_cb_ = std::move(cb);
}
void PeriodicEventCollector::SetReportingEnabled(bool is_enabled) {
if (is_enabled) {
// Do initial collection at startup.
Collect(/*is_event_driven=*/false);
rate_controller_->Start();
return;
}
rate_controller_->Stop();
}
void PeriodicEventCollector::OnMetricDataCollected(
bool is_event_driven,
std::optional<MetricData> metric_data) {
if (!metric_data.has_value()) {
return;
}
metric_data->set_timestamp_ms(
base::Time::Now().InMillisecondsSinceUnixEpoch());
std::optional<MetricEventType> event =
event_detector_->DetectEvent(last_collected_data_, metric_data.value());
last_collected_data_ = std::move(metric_data.value());
if (!on_event_observed_cb_ || !event.has_value()) {
return;
}
last_collected_data_->mutable_event_data()->set_type(event.value());
on_event_observed_cb_.Run(last_collected_data_.value());
}
bool PeriodicEventCollector::CanCollect() const {
return true;
}
} // namespace reporting
|
