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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/metrics/delegating_provider.h"
#include "base/barrier_closure.h"
#include "base/notreached.h"
namespace metrics {
DelegatingProvider::DelegatingProvider() = default;
DelegatingProvider::~DelegatingProvider() = default;
void DelegatingProvider::RegisterMetricsProvider(
std::unique_ptr<MetricsProvider> provider) {
metrics_providers_.push_back(std::move(provider));
}
const std::vector<std::unique_ptr<MetricsProvider>>&
DelegatingProvider::GetProviders() {
return metrics_providers_;
}
void DelegatingProvider::Init() {
for (auto& provider : metrics_providers_)
provider->Init();
}
void DelegatingProvider::AsyncInit(base::OnceClosure done_callback) {
base::RepeatingClosure barrier =
base::BarrierClosure(metrics_providers_.size(), std::move(done_callback));
for (auto& provider : metrics_providers_) {
provider->AsyncInit(barrier);
}
}
void DelegatingProvider::OnDidCreateMetricsLog() {
for (auto& provider : metrics_providers_)
provider->OnDidCreateMetricsLog();
}
void DelegatingProvider::OnRecordingEnabled() {
for (auto& provider : metrics_providers_)
provider->OnRecordingEnabled();
}
void DelegatingProvider::OnRecordingDisabled() {
for (auto& provider : metrics_providers_)
provider->OnRecordingDisabled();
}
void DelegatingProvider::OnAppEnterBackground() {
for (auto& provider : metrics_providers_)
provider->OnAppEnterBackground();
}
bool DelegatingProvider::HasIndependentMetrics() {
// These are collected seperately for each provider.
NOTREACHED();
return false;
}
void DelegatingProvider::ProvideSystemProfileMetrics(
SystemProfileProto* system_profile_proto) {
// ProvideSystemProfileMetricsWithLogCreationTime() should be called instead.
NOTREACHED();
}
void DelegatingProvider::ProvideSystemProfileMetricsWithLogCreationTime(
base::TimeTicks log_creation_time,
SystemProfileProto* system_profile_proto) {
for (auto& provider : metrics_providers_) {
provider->ProvideSystemProfileMetricsWithLogCreationTime(
log_creation_time, system_profile_proto);
}
}
bool DelegatingProvider::HasPreviousSessionData() {
// All providers are queried (rather than stopping after the first "true"
// response) in case they do any kind of setup work in preparation for
// the later call to RecordInitialHistogramSnapshots().
bool has_stability_metrics = false;
for (auto& provider : metrics_providers_)
has_stability_metrics |= provider->HasPreviousSessionData();
return has_stability_metrics;
}
void DelegatingProvider::ProvidePreviousSessionData(
ChromeUserMetricsExtension* uma_proto) {
for (const auto& provider : metrics_providers_)
provider->ProvidePreviousSessionData(uma_proto);
}
void DelegatingProvider::ProvideCurrentSessionData(
ChromeUserMetricsExtension* uma_proto) {
for (const auto& provider : metrics_providers_)
provider->ProvideCurrentSessionData(uma_proto);
}
void DelegatingProvider::ClearSavedStabilityMetrics() {
for (auto& provider : metrics_providers_)
provider->ClearSavedStabilityMetrics();
}
void DelegatingProvider::RecordHistogramSnapshots(
base::HistogramSnapshotManager* snapshot_manager) {
for (auto& provider : metrics_providers_)
provider->RecordHistogramSnapshots(snapshot_manager);
}
void DelegatingProvider::RecordInitialHistogramSnapshots(
base::HistogramSnapshotManager* snapshot_manager) {
for (auto& provider : metrics_providers_)
provider->RecordInitialHistogramSnapshots(snapshot_manager);
}
} // namespace metrics
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