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// Copyright 2015 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/data_usage/core/data_use_aggregator.h"
#include <utility>
#include "base/bind.h"
#include "base/callback.h"
#include "build/build_config.h"
#include "components/data_usage/core/data_use.h"
#include "net/base/load_timing_info.h"
#include "net/base/network_change_notifier.h"
#include "net/url_request/url_request.h"
#if defined(OS_ANDROID)
#include "net/android/network_library.h"
#endif // OS_ANDROID
namespace data_usage {
DataUseAggregator::DataUseAggregator(
std::unique_ptr<DataUseAnnotator> annotator,
std::unique_ptr<DataUseAmortizer> amortizer)
: annotator_(std::move(annotator)),
amortizer_(std::move(amortizer)),
connection_type_(net::NetworkChangeNotifier::GetConnectionType()),
weak_ptr_factory_(this) {
#if defined(OS_ANDROID)
mcc_mnc_ = net::android::GetTelephonySimOperator();
#endif // OS_ANDROID
net::NetworkChangeNotifier::AddConnectionTypeObserver(this);
}
DataUseAggregator::~DataUseAggregator() {
net::NetworkChangeNotifier::RemoveConnectionTypeObserver(this);
}
void DataUseAggregator::AddObserver(Observer* observer) {
DCHECK(thread_checker_.CalledOnValidThread());
observer_list_.AddObserver(observer);
}
void DataUseAggregator::RemoveObserver(Observer* observer) {
DCHECK(thread_checker_.CalledOnValidThread());
observer_list_.RemoveObserver(observer);
}
void DataUseAggregator::ReportDataUse(net::URLRequest* request,
int64_t tx_bytes,
int64_t rx_bytes) {
DCHECK(thread_checker_.CalledOnValidThread());
net::LoadTimingInfo load_timing_info;
request->GetLoadTimingInfo(&load_timing_info);
std::unique_ptr<DataUse> data_use(
new DataUse(request->url(), load_timing_info.request_start,
request->first_party_for_cookies(), -1 /* tab_id */,
connection_type_, mcc_mnc_, tx_bytes, rx_bytes));
if (!annotator_) {
PassDataUseToAmortizer(std::move(data_use));
return;
}
// As an optimization, re-use a lazily initialized callback object for every
// call into |annotator_|, so that a new callback object doesn't have to be
// allocated and held onto every time.
if (annotation_callback_.is_null()) {
annotation_callback_ =
base::Bind(&DataUseAggregator::PassDataUseToAmortizer, GetWeakPtr());
}
annotator_->Annotate(request, std::move(data_use), annotation_callback_);
}
void DataUseAggregator::ReportOffTheRecordDataUse(int64_t tx_bytes,
int64_t rx_bytes) {
DCHECK(thread_checker_.CalledOnValidThread());
if (!amortizer_)
return;
amortizer_->OnExtraBytes(tx_bytes, rx_bytes);
}
base::WeakPtr<DataUseAggregator> DataUseAggregator::GetWeakPtr() {
DCHECK(thread_checker_.CalledOnValidThread());
return weak_ptr_factory_.GetWeakPtr();
}
void DataUseAggregator::OnConnectionTypeChanged(
net::NetworkChangeNotifier::ConnectionType type) {
DCHECK(thread_checker_.CalledOnValidThread());
connection_type_ = type;
#if defined(OS_ANDROID)
mcc_mnc_ = net::android::GetTelephonySimOperator();
#endif // OS_ANDROID
}
void DataUseAggregator::SetMccMncForTests(const std::string& mcc_mnc) {
DCHECK(thread_checker_.CalledOnValidThread());
mcc_mnc_ = mcc_mnc;
}
void DataUseAggregator::PassDataUseToAmortizer(
std::unique_ptr<DataUse> data_use) {
DCHECK(thread_checker_.CalledOnValidThread());
DCHECK(data_use);
if (!amortizer_) {
OnAmortizationComplete(std::move(data_use));
return;
}
// As an optimization, re-use a lazily initialized callback object for every
// call into |amortizer_|, so that a new callback object doesn't have to be
// allocated and held onto every time. This also allows the |amortizer_| to
// combine together similar DataUse objects in its buffer if applicable.
if (amortization_callback_.is_null()) {
amortization_callback_ =
base::Bind(&DataUseAggregator::OnAmortizationComplete, GetWeakPtr());
}
amortizer_->AmortizeDataUse(std::move(data_use), amortization_callback_);
}
void DataUseAggregator::OnAmortizationComplete(
std::unique_ptr<DataUse> amortized_data_use) {
DCHECK(thread_checker_.CalledOnValidThread());
for (Observer& observer : observer_list_)
observer.OnDataUse(*amortized_data_use);
}
} // namespace data_usage
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