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// 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 "chrome/browser/metrics/structured/cros_events_processor.h"
#include "base/files/file_util.h"
#include "base/logging.h"
namespace metrics::structured::cros_event {
// The path to where the reset counter is stored by platform2.
// This path must remain the same as |kResetCounterPath| in
// platform2/metrics/structured/reset_counter_updater.cc
const char* kResetCounterPath = "/var/lib/metrics/structured/reset-counter";
CrOSEventsProcessor::CrOSEventsProcessor(const char* reset_counter_path) {
std::string content;
if (base::ReadFileToString(base::FilePath(reset_counter_path), &content)) {
std::stringstream ss(content);
ss >> current_reset_counter_;
} else {
LOG(ERROR) << "Failed to read reset_counter file: " << reset_counter_path;
}
}
CrOSEventsProcessor::~CrOSEventsProcessor() = default;
// static
void CrOSEventsProcessor::RegisterLocalStatePrefs(PrefRegistrySimple*) {}
bool CrOSEventsProcessor::ShouldProcessOnEventRecord(const Event& event) {
return event.IsEventSequenceType();
}
void CrOSEventsProcessor::OnEventsRecord(Event* event) {
event->SetEventSequenceMetadata(
Event::EventSequenceMetadata(current_reset_counter_));
}
void CrOSEventsProcessor::OnEventRecorded(StructuredEventProto* event) {}
void CrOSEventsProcessor::OnProvideIndependentMetrics(
ChromeUserMetricsExtension* uma_proto) {
// no-op.
}
} // namespace metrics::structured::cros_event
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