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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/download/internal/config.h"
#include <string>
#include "base/memory/ptr_util.h"
#include "base/metrics/field_trial_params.h"
#include "base/strings/string_number_conversions.h"
#include "components/download/public/features.h"
namespace download {
namespace {
// Default value for battery query interval.
const base::TimeDelta kDefaultBatteryQueryInterval =
base::TimeDelta::FromSeconds(120);
// Default minimum battery percentage to start download or background task when
// battery requirement is sensitive.
const uint32_t kDefaultDownloadBatteryPercentage = 50;
// Default value for max concurrent downloads configuration.
const uint32_t kDefaultMaxConcurrentDownloads = 4;
// Default value for maximum running downloads of the download service.
const uint32_t kDefaultMaxRunningDownloads = 2;
// Default value for maximum scheduled downloads.
const uint32_t kDefaultMaxScheduledDownloads = 15;
// Default value for maximum retry count.
const uint32_t kDefaultMaxRetryCount = 5;
// Default value for maximum resumption count.
const uint32_t kDefaultMaxResumptionCount = 15;
// Default value for file keep alive time, keep the file alive for 12 hours by
// default.
const base::TimeDelta kDefaultFileKeepAliveTime =
base::TimeDelta::FromHours(12);
// Default value for maximum duration that the file can be kept alive time,
// default is 7 days.
const base::TimeDelta kDefaultMaxFileKeepAliveTime =
base::TimeDelta::FromDays(7);
// Default value for file cleanup window, the system will schedule a cleanup
// task within this window.
const base::TimeDelta kDefaultFileCleanupWindow =
base::TimeDelta::FromHours(24);
// Default value for the start window time for OS to schedule background task.
const base::TimeDelta kDefaultWindowStartTime = base::TimeDelta::FromMinutes(5);
// Default value for the end window time for OS to schedule background task.
const base::TimeDelta kDefaultWindowEndTime = base::TimeDelta::FromHours(8);
// Default value for start up delay to wait for network stack ready.
const base::TimeDelta kDefaultNetworkStartupDelay =
base::TimeDelta::FromSeconds(5);
// The default delay to notify the observer when network changes from
// disconnected to connected.
const base::TimeDelta kDefaultNetworkChangeDelay =
base::TimeDelta::FromSeconds(5);
// The default delay to notify the observer after a navigation completes.
const base::TimeDelta kDefaultNavigationCompletionDelay =
base::TimeDelta::FromSeconds(30);
// The default timeout for a navigation.
const base::TimeDelta kDefaultNavigationTimeoutDelay =
base::TimeDelta::FromSeconds(300);
// The default value of download retry delay when the download is failed.
const base::TimeDelta kDefaultDownloadRetryDelay =
base::TimeDelta::FromSeconds(20);
// Helper routine to get Finch experiment parameter. If no Finch seed was found,
// use the |default_value|. The |name| should match an experiment
// parameter in Finch server configuration.
uint32_t GetFinchConfigUInt(const std::string& name, uint32_t default_value) {
std::string finch_value =
base::GetFieldTrialParamValueByFeature(kDownloadServiceFeature, name);
uint32_t result;
return base::StringToUint(finch_value, &result) ? result : default_value;
}
} // namespace
// static
std::unique_ptr<Configuration> Configuration::CreateFromFinch() {
std::unique_ptr<Configuration> config(new Configuration());
config->battery_query_interval =
base::TimeDelta::FromSeconds(base::saturated_cast<int>(
GetFinchConfigUInt(kBatteryQueryIntervalConfig,
kDefaultBatteryQueryInterval.InSeconds())));
config->download_battery_percentage =
base::saturated_cast<int>(GetFinchConfigUInt(
kDownloadBatteryPercentageConfig, kDefaultDownloadBatteryPercentage));
config->max_concurrent_downloads = GetFinchConfigUInt(
kMaxConcurrentDownloadsConfig, kDefaultMaxConcurrentDownloads);
config->max_running_downloads = GetFinchConfigUInt(
kMaxRunningDownloadsConfig, kDefaultMaxRunningDownloads);
config->max_scheduled_downloads = GetFinchConfigUInt(
kMaxScheduledDownloadsConfig, kDefaultMaxScheduledDownloads);
config->max_retry_count =
GetFinchConfigUInt(kMaxRetryCountConfig, kDefaultMaxRetryCount);
config->max_resumption_count =
GetFinchConfigUInt(kMaxResumptionCountConfig, kDefaultMaxResumptionCount);
config->file_keep_alive_time =
base::TimeDelta::FromMinutes(base::saturated_cast<int>(
GetFinchConfigUInt(kFileKeepAliveTimeMinutesConfig,
kDefaultFileKeepAliveTime.InMinutes())));
config->max_file_keep_alive_time =
base::TimeDelta::FromMinutes(base::saturated_cast<int>(
GetFinchConfigUInt(kMaxFileKeepAliveTimeMinutesConfig,
kDefaultMaxFileKeepAliveTime.InMinutes())));
config->file_cleanup_window =
base::TimeDelta::FromMinutes(base::saturated_cast<int>(
GetFinchConfigUInt(kFileCleanupWindowMinutesConfig,
kDefaultFileCleanupWindow.InMinutes())));
config->window_start_time =
base::TimeDelta::FromSeconds(base::saturated_cast<int>(GetFinchConfigUInt(
kWindowStartTimeSecondsConfig, kDefaultWindowStartTime.InSeconds())));
config->window_end_time =
base::TimeDelta::FromSeconds(base::saturated_cast<int>(GetFinchConfigUInt(
kWindowEndTimeSecondsConfig, kDefaultWindowEndTime.InSeconds())));
config->network_startup_delay =
base::TimeDelta::FromMilliseconds(base::saturated_cast<int>(
GetFinchConfigUInt(kNetworkStartupDelayMsConfig,
kDefaultNetworkStartupDelay.InMilliseconds())));
config->network_change_delay =
base::TimeDelta::FromMilliseconds(base::saturated_cast<int>(
GetFinchConfigUInt(kNetworkChangeDelayMsConfig,
kDefaultNetworkChangeDelay.InMilliseconds())));
config->navigation_completion_delay =
base::TimeDelta::FromSeconds(base::saturated_cast<int>(
GetFinchConfigUInt(kNavigationCompletionDelaySecondsConfig,
kDefaultNavigationCompletionDelay.InSeconds())));
config->navigation_timeout_delay =
base::TimeDelta::FromSeconds(base::saturated_cast<int>(
GetFinchConfigUInt(kNavigationTimeoutDelaySecondsConfig,
kDefaultNavigationTimeoutDelay.InSeconds())));
config->download_retry_delay =
base::TimeDelta::FromMilliseconds(base::saturated_cast<int>(
GetFinchConfigUInt(kDownloadRetryDelayMsConfig,
kDefaultDownloadRetryDelay.InMilliseconds())));
return config;
}
Configuration::Configuration()
: battery_query_interval(kDefaultBatteryQueryInterval),
download_battery_percentage(kDefaultDownloadBatteryPercentage),
max_concurrent_downloads(kDefaultMaxConcurrentDownloads),
max_running_downloads(kDefaultMaxRunningDownloads),
max_scheduled_downloads(kDefaultMaxScheduledDownloads),
max_retry_count(kDefaultMaxRetryCount),
max_resumption_count(kDefaultMaxResumptionCount),
file_keep_alive_time(kDefaultFileKeepAliveTime),
max_file_keep_alive_time(kDefaultMaxFileKeepAliveTime),
file_cleanup_window(kDefaultFileCleanupWindow),
window_start_time(kDefaultWindowStartTime),
window_end_time(kDefaultWindowEndTime),
network_startup_delay(kDefaultNetworkStartupDelay),
network_change_delay(kDefaultNetworkChangeDelay),
navigation_completion_delay(kDefaultNavigationCompletionDelay),
navigation_timeout_delay(kDefaultNavigationTimeoutDelay),
download_retry_delay(kDefaultDownloadRetryDelay) {}
} // namespace download