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/*
* Copyright (C) 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings.datausage.lib;
import android.content.Context;
import android.net.NetworkTemplate;
import android.telephony.SubscriptionInfo;
import android.telephony.SubscriptionManager;
import android.telephony.TelephonyManager;
import android.util.Log;
import com.android.internal.util.ArrayUtils;
import java.util.List;
/**
* Lib class for data usage
*/
public class DataUsageLib {
private static final String TAG = "DataUsageLib";
/**
* Return mobile NetworkTemplate based on {@code subId}
*/
public static NetworkTemplate getMobileTemplate(Context context, int subId) {
final TelephonyManager telephonyManager = context.getSystemService(TelephonyManager.class);
final int mobileDefaultSubId = telephonyManager.getSubscriptionId();
final SubscriptionManager subscriptionManager =
context.getSystemService(SubscriptionManager.class);
final List<SubscriptionInfo> subInfoList =
subscriptionManager.getAvailableSubscriptionInfoList();
if (subInfoList == null) {
Log.i(TAG, "Subscription is not inited: " + subId);
return getMobileTemplateForSubId(telephonyManager, mobileDefaultSubId);
}
for (SubscriptionInfo subInfo : subInfoList) {
if ((subInfo != null) && (subInfo.getSubscriptionId() == subId)) {
return getNormalizedMobileTemplate(telephonyManager, subId);
}
}
Log.i(TAG, "Subscription is not active: " + subId);
return getMobileTemplateForSubId(telephonyManager, mobileDefaultSubId);
}
private static NetworkTemplate getNormalizedMobileTemplate(
TelephonyManager telephonyManager, int subId) {
final NetworkTemplate mobileTemplate = getMobileTemplateForSubId(telephonyManager, subId);
final String[] mergedSubscriberIds = telephonyManager
.createForSubscriptionId(subId).getMergedImsisFromGroup();
if (ArrayUtils.isEmpty(mergedSubscriberIds)) {
Log.i(TAG, "mergedSubscriberIds is null.");
return mobileTemplate;
}
return NetworkTemplate.normalize(mobileTemplate, mergedSubscriberIds);
}
private static NetworkTemplate getMobileTemplateForSubId(
TelephonyManager telephonyManager, int subId) {
// The null subscriberId means that no any mobile/carrier network will be matched.
// Using old API: buildTemplateMobileAll for the null subscriberId to avoid NPE.
String subscriberId = telephonyManager.getSubscriberId(subId);
return subscriberId != null ? NetworkTemplate.buildTemplateCarrierMetered(subscriberId)
: NetworkTemplate.buildTemplateMobileAll(subscriberId);
}
}
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