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// Copyright 2023 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/nearby_sharing/metrics/nearby_share_metric_logger.h"
#include <utility>
#include "base/time/time.h"
#include "chrome/browser/nearby_sharing/metrics/metric_common.h"
#include "chromeos/ash/services/nearby/public/mojom/nearby_connections_types.mojom-shared.h"
#include "components/metrics/structured/structured_events.h"
#include "components/metrics/structured/structured_metrics_client.h"
namespace nearby::share::metrics {
NearbyShareMetricLogger::NearbyShareMetricLogger() = default;
NearbyShareMetricLogger::~NearbyShareMetricLogger() = default;
void NearbyShareMetricLogger::OnShareTargetDiscoveryStarted() {
discovery_start_time_ = base::TimeTicks::Now();
}
void NearbyShareMetricLogger::OnShareTargetDiscoveryStopped() {
discovery_start_time_ = std::nullopt;
}
void NearbyShareMetricLogger::OnShareTargetAdded(
const ShareTarget& share_target) {
base::TimeTicks discover_time = base::TimeTicks::Now();
// Discovery time only applies to senders.
if (!share_target.is_incoming) {
CHECK(discovery_start_time_.has_value());
share_target_scan_to_discover_delta_[share_target.id] =
discover_time - discovery_start_time_.value();
}
share_target_discover_time_[share_target.id] = discover_time;
// Bluetooth is currently the default medium. Initial medium is
// set in OnInitialMedium, not here. Note that we only expect
// OnInitialMedium to be called when sending; luckily this
// aligns with the only case where the initial medium can be
// Wifi LAN instead of Bluetooth (thanks to mDNS Discovery).
share_target_initial_medium_[share_target.id] =
nearby::connections::mojom::Medium::kBluetooth;
share_target_medium_[share_target.id] =
nearby::connections::mojom::Medium::kBluetooth;
}
void NearbyShareMetricLogger::OnShareTargetRemoved(
const ShareTarget& share_target) {
share_target_discover_time_.erase(share_target.id);
share_target_select_time_.erase(share_target.id);
share_target_connect_time_.erase(share_target.id);
share_target_accept_time_.erase(share_target.id);
share_target_upgrade_time_.erase(share_target.id);
share_target_medium_.erase(share_target.id);
share_target_initial_medium_.erase(share_target.id);
transfer_size_.erase(share_target.id);
transfer_progress_.erase(share_target.id);
}
void NearbyShareMetricLogger::OnShareTargetSelected(
const ShareTarget& share_target) {
share_target_select_time_[share_target.id] = base::TimeTicks::Now();
}
void NearbyShareMetricLogger::OnShareTargetConnected(
const ShareTarget& share_target) {
share_target_connect_time_[share_target.id] = base::TimeTicks::Now();
}
void NearbyShareMetricLogger::OnTransferAccepted(
const ShareTarget& share_target) {
share_target_accept_time_[share_target.id] = base::TimeTicks::Now();
}
void NearbyShareMetricLogger::OnTransferStarted(const ShareTarget& share_target,
long total_bytes) {
transfer_size_[share_target.id] = total_bytes;
}
void NearbyShareMetricLogger::OnTransferUpdated(const ShareTarget& share_target,
float progress_complete) {
transfer_progress_[share_target.id] = progress_complete;
}
// TODO(b/266739400): Test this once there is Structured Metrics unittesting
// infrastructure available.
void NearbyShareMetricLogger::OnTransferCompleted(
const ShareTarget& share_target,
TransferMetadata::Status status) {
TransferResult result = GetTransferResult(status);
if (result == TransferResult::kComplete) {
transfer_progress_[share_target.id] = 100.0;
}
Platform platform = GetPlatform(share_target);
DeviceRelationship relationship = GetDeviceRelationship(share_target);
int64_t total_transfer_bytes = transfer_size_[share_target.id];
float percentage_complete = transfer_progress_[share_target.id];
int64_t bytes_transferred =
(percentage_complete / 100) * total_transfer_bytes;
connections::mojom::Medium initial_medium =
share_target_initial_medium_[share_target.id];
connections::mojom::Medium final_medium =
share_target_medium_[share_target.id];
auto metric = ::metrics::structured::events::v2::nearby_share::ShareSession();
metric.SetIsReceiving(share_target.is_incoming);
metric.SetPlatform(static_cast<int>(platform));
metric.SetDeviceRelationship(static_cast<int>(relationship));
metric.SetInitialMedium(static_cast<int>(initial_medium));
metric.SetFinalMedium(static_cast<int>(final_medium));
metric.SetNumberOfFiles(share_target.file_attachments.size());
metric.SetNumberOfTexts(share_target.text_attachments.size());
metric.SetNumberOfWiFiCredentials(
share_target.wifi_credentials_attachments.size());
metric.SetTotalTransferBytes(total_transfer_bytes);
metric.SetBytesTransferred(bytes_transferred);
metric.SetResult(static_cast<int>(result));
// Calculate selection time. This is not set for a receiver.
if (!share_target.is_incoming &&
share_target_scan_to_discover_delta_.contains(share_target.id)) {
base::TimeDelta time =
share_target_scan_to_discover_delta_[share_target.id];
metric.SetTimeToDiscovery(time.InMilliseconds());
}
// Calculate selection time. This is not set for a receiver.
if (!share_target.is_incoming &&
share_target_select_time_.contains(share_target.id)) {
base::TimeDelta diff = (share_target_select_time_[share_target.id] -
share_target_discover_time_[share_target.id]);
metric.SetTimeToSelect(diff.InMilliseconds());
}
// Calculate connect time. This is not set for a receiver.
if (!share_target.is_incoming &&
share_target_connect_time_.contains(share_target.id)) {
base::TimeDelta diff = (share_target_connect_time_[share_target.id] -
share_target_discover_time_[share_target.id]);
metric.SetTimeToConnect(diff.InMilliseconds());
}
// Calculate accept time. This is not set for rejected transfers.
if (share_target_accept_time_.contains(share_target.id)) {
base::TimeDelta diff = (share_target_accept_time_[share_target.id] -
share_target_discover_time_[share_target.id]);
metric.SetTimeToAccept(diff.InMilliseconds());
}
// Calculate upgrade time, if one occurred.
if (share_target_upgrade_time_.contains(share_target.id)) {
base::TimeDelta diff = (share_target_upgrade_time_[share_target.id] -
share_target_discover_time_[share_target.id]);
metric.SetTimeToUpgrade(diff.InMilliseconds());
}
// Calculate transfer time
base::TimeDelta complete_time =
(base::TimeTicks::Now() - share_target_discover_time_[share_target.id]);
metric.SetTimeToTransferComplete(complete_time.InMilliseconds());
// Emit the metric.
::metrics::structured::StructuredMetricsClient::Record(std::move(metric));
}
void NearbyShareMetricLogger::OnInitialMedium(
const ShareTarget& share_target,
nearby::connections::mojom::Medium medium) {
share_target_initial_medium_[share_target.id] = medium;
share_target_medium_[share_target.id] = medium;
}
void NearbyShareMetricLogger::OnBandwidthUpgrade(
const ShareTarget& share_target,
nearby::connections::mojom::Medium medium) {
share_target_upgrade_time_[share_target.id] = base::TimeTicks::Now();
share_target_medium_[share_target.id] = medium;
}
} // namespace nearby::share::metrics
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