1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settingslib.net; 18 19 import android.content.Context; 20 import android.net.NetworkTemplate; 21 import android.telephony.SubscriptionInfo; 22 import android.telephony.SubscriptionManager; 23 import android.telephony.TelephonyManager; 24 import android.util.Log; 25 26 import com.android.internal.util.ArrayUtils; 27 28 import java.util.List; 29 30 /** 31 * Utils class for data usage 32 */ 33 public class DataUsageUtils { 34 private static final String TAG = "DataUsageUtils"; 35 36 /** 37 * Return mobile NetworkTemplate based on {@code subId} 38 */ getMobileTemplate(Context context, int subId)39 public static NetworkTemplate getMobileTemplate(Context context, int subId) { 40 final TelephonyManager telephonyManager = context.getSystemService(TelephonyManager.class); 41 final int mobileDefaultSubId = telephonyManager.getSubscriptionId(); 42 43 final SubscriptionManager subscriptionManager = 44 context.getSystemService(SubscriptionManager.class); 45 final List<SubscriptionInfo> subInfoList = 46 subscriptionManager.getAvailableSubscriptionInfoList(); 47 if (subInfoList == null) { 48 Log.i(TAG, "Subscription is not inited: " + subId); 49 return getMobileTemplateForSubId(telephonyManager, mobileDefaultSubId); 50 } 51 52 for (SubscriptionInfo subInfo : subInfoList) { 53 if ((subInfo != null) && (subInfo.getSubscriptionId() == subId)) { 54 return getNormalizedMobileTemplate(telephonyManager, subId); 55 } 56 } 57 Log.i(TAG, "Subscription is not active: " + subId); 58 return getMobileTemplateForSubId(telephonyManager, mobileDefaultSubId); 59 } 60 getNormalizedMobileTemplate( TelephonyManager telephonyManager, int subId)61 private static NetworkTemplate getNormalizedMobileTemplate( 62 TelephonyManager telephonyManager, int subId) { 63 final NetworkTemplate mobileTemplate = getMobileTemplateForSubId(telephonyManager, subId); 64 final String[] mergedSubscriberIds = telephonyManager 65 .createForSubscriptionId(subId).getMergedImsisFromGroup(); 66 if (ArrayUtils.isEmpty(mergedSubscriberIds)) { 67 Log.i(TAG, "mergedSubscriberIds is null."); 68 return mobileTemplate; 69 } 70 71 return NetworkTemplate.normalize(mobileTemplate, mergedSubscriberIds); 72 } 73 getMobileTemplateForSubId( TelephonyManager telephonyManager, int subId)74 private static NetworkTemplate getMobileTemplateForSubId( 75 TelephonyManager telephonyManager, int subId) { 76 // The null subscriberId means that no any mobile/carrier network will be matched. 77 // Using old API: buildTemplateMobileAll for the null subscriberId to avoid NPE. 78 String subscriberId = telephonyManager.getSubscriberId(subId); 79 return subscriberId != null ? NetworkTemplate.buildTemplateCarrierMetered(subscriberId) 80 : NetworkTemplate.buildTemplateMobileAll(subscriberId); 81 } 82 } 83