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/*
* Copyright (C) 2017 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;
import static android.net.ConnectivityManager.TYPE_MOBILE;
import static android.net.ConnectivityManager.TYPE_WIFI;
import static android.telephony.TelephonyManager.SIM_STATE_READY;
import android.app.usage.NetworkStats.Bucket;
import android.app.usage.NetworkStatsManager;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkTemplate;
import android.os.RemoteException;
import android.os.SystemProperties;
import android.telephony.SubscriptionInfo;
import android.telephony.SubscriptionManager;
import android.telephony.TelephonyManager;
import android.text.BidiFormatter;
import android.text.format.Formatter;
import android.text.format.Formatter.BytesResult;
import android.util.Log;
import com.android.settings.datausage.lib.DataUsageLib;
import com.android.settings.network.ProxySubscriptionManager;
import java.util.List;
/**
* Utility methods for data usage classes.
*/
public final class DataUsageUtils extends com.android.settingslib.net.DataUsageUtils {
static final boolean TEST_RADIOS = false;
static final String TEST_RADIOS_PROP = "test.radios";
private static final boolean LOGD = false;
private static final String ETHERNET = "ethernet";
private static final String TAG = "DataUsageUtils";
private DataUsageUtils() {
}
/**
* Format byte value to readable string using IEC units.
*/
public static CharSequence formatDataUsage(Context context, long byteValue) {
final BytesResult res = Formatter.formatBytes(context.getResources(), byteValue,
Formatter.FLAG_IEC_UNITS);
return BidiFormatter.getInstance().unicodeWrap(context.getString(
com.android.internal.R.string.fileSizeSuffix, res.value, res.units));
}
/**
* Test if device has an ethernet network connection.
*/
public static boolean hasEthernet(Context context) {
if (DataUsageUtils.TEST_RADIOS) {
return SystemProperties.get(DataUsageUtils.TEST_RADIOS_PROP).contains(ETHERNET);
}
final ConnectivityManager conn = context.getSystemService(ConnectivityManager.class);
if (!conn.isNetworkSupported(ConnectivityManager.TYPE_ETHERNET)) {
return false;
}
final TelephonyManager telephonyManager = context.getSystemService(TelephonyManager.class);
final NetworkStatsManager networkStatsManager =
context.getSystemService(NetworkStatsManager.class);
boolean hasEthernetUsage = false;
try {
final Bucket bucket = networkStatsManager.querySummaryForUser(
ConnectivityManager.TYPE_ETHERNET, telephonyManager.getSubscriberId(),
0L /* startTime */, System.currentTimeMillis() /* endTime */);
if (bucket != null) {
hasEthernetUsage = bucket.getRxBytes() > 0 || bucket.getTxBytes() > 0;
}
} catch (RemoteException e) {
Log.e(TAG, "Exception querying network detail.", e);
}
return hasEthernetUsage;
}
/**
* Returns whether device has mobile data.
* TODO: This is the opposite to Utils.isWifiOnly(), it should be refactored into 1 method.
*/
public static boolean hasMobileData(Context context) {
final ConnectivityManager connectivityManager =
context.getSystemService(ConnectivityManager.class);
return connectivityManager != null && connectivityManager
.isNetworkSupported(ConnectivityManager.TYPE_MOBILE);
}
/**
* Test if device has a mobile data radio with SIM in ready state.
*/
public static boolean hasReadyMobileRadio(Context context) {
if (DataUsageUtils.TEST_RADIOS) {
return SystemProperties.get(DataUsageUtils.TEST_RADIOS_PROP).contains("mobile");
}
final List<SubscriptionInfo> subInfoList =
ProxySubscriptionManager.getInstance(context)
.getActiveSubscriptionsInfo();
// No activated Subscriptions
if (subInfoList == null) {
if (LOGD) {
Log.d(TAG, "hasReadyMobileRadio: subInfoList=null");
}
return false;
}
final TelephonyManager tele = context.getSystemService(TelephonyManager.class);
// require both supported network and ready SIM
boolean isReady = true;
for (SubscriptionInfo subInfo : subInfoList) {
isReady = isReady & tele.getSimState(subInfo.getSimSlotIndex()) == SIM_STATE_READY;
if (LOGD) {
Log.d(TAG, "hasReadyMobileRadio: subInfo=" + subInfo);
}
}
final ConnectivityManager conn = context.getSystemService(ConnectivityManager.class);
final boolean retVal = conn.isNetworkSupported(TYPE_MOBILE) && isReady;
if (LOGD) {
Log.d(TAG, "hasReadyMobileRadio:"
+ " conn.isNetworkSupported(TYPE_MOBILE)="
+ conn.isNetworkSupported(TYPE_MOBILE)
+ " isReady=" + isReady);
}
return retVal;
}
/**
* Whether device has a Wi-Fi data radio.
*/
public static boolean hasWifiRadio(Context context) {
if (TEST_RADIOS) {
return SystemProperties.get(TEST_RADIOS_PROP).contains("wifi");
}
final ConnectivityManager connectivityManager =
context.getSystemService(ConnectivityManager.class);
return connectivityManager != null && connectivityManager.isNetworkSupported(TYPE_WIFI);
}
/**
* Returns the default subscription if available else returns
* SubscriptionManager#INVALID_SUBSCRIPTION_ID
*/
public static int getDefaultSubscriptionId(Context context) {
// default data subscription is first choice
final int dataSubId = SubscriptionManager.getDefaultDataSubscriptionId();
if (SubscriptionManager.isValidSubscriptionId(dataSubId)) {
return dataSubId;
}
final ProxySubscriptionManager proxySubscriptionMgr =
ProxySubscriptionManager.getInstance(context);
// any active subscription is second choice
List<SubscriptionInfo> subList = proxySubscriptionMgr.getActiveSubscriptionsInfo();
if ((subList == null) || (subList.size() <= 0)) {
// any subscription is third choice
subList = proxySubscriptionMgr.getAccessibleSubscriptionsInfo();
}
if ((subList == null) || (subList.size() <= 0)) {
return SubscriptionManager.INVALID_SUBSCRIPTION_ID;
}
return subList.get(0).getSubscriptionId();
}
/**
* Returns the default network template based on the availability of mobile data, Wifi. Returns
* ethernet template if both mobile data and Wifi are not available.
*/
public static NetworkTemplate getDefaultTemplate(Context context, int defaultSubId) {
if (SubscriptionManager.isValidSubscriptionId(defaultSubId) && hasMobileData(context)) {
return DataUsageLib.getMobileTemplate(context, defaultSubId);
} else if (hasWifiRadio(context)) {
return NetworkTemplate.buildTemplateWifiWildcard();
} else {
return NetworkTemplate.buildTemplateEthernet();
}
}
}
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