| /* |
| * Copyright (C) 2015 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.settingslib.net; |
| |
| import static android.net.ConnectivityManager.TYPE_MOBILE; |
| import static android.net.NetworkStatsHistory.FIELD_RX_BYTES; |
| import static android.net.NetworkStatsHistory.FIELD_TX_BYTES; |
| import static android.net.TrafficStats.MB_IN_BYTES; |
| import static android.telephony.TelephonyManager.SIM_STATE_READY; |
| import static android.text.format.DateUtils.FORMAT_ABBREV_MONTH; |
| import static android.text.format.DateUtils.FORMAT_SHOW_DATE; |
| |
| import android.content.Context; |
| import android.net.ConnectivityManager; |
| import android.net.INetworkStatsService; |
| import android.net.INetworkStatsSession; |
| import android.net.NetworkPolicy; |
| import android.net.NetworkPolicyManager; |
| import android.net.NetworkStatsHistory; |
| import android.net.NetworkTemplate; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.telephony.SubscriptionManager; |
| import android.telephony.TelephonyManager; |
| import android.text.format.DateUtils; |
| import android.util.Log; |
| import android.util.Pair; |
| |
| import com.android.internal.R; |
| |
| import java.time.ZonedDateTime; |
| import java.util.Date; |
| import java.util.Locale; |
| |
| public class DataUsageController { |
| |
| private static final String TAG = "DataUsageController"; |
| private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); |
| private static final int FIELDS = FIELD_RX_BYTES | FIELD_TX_BYTES; |
| private static final StringBuilder PERIOD_BUILDER = new StringBuilder(50); |
| private static final java.util.Formatter PERIOD_FORMATTER = new java.util.Formatter( |
| PERIOD_BUILDER, Locale.getDefault()); |
| |
| private final Context mContext; |
| private final TelephonyManager mTelephonyManager; |
| private final ConnectivityManager mConnectivityManager; |
| private final INetworkStatsService mStatsService; |
| private final NetworkPolicyManager mPolicyManager; |
| |
| private INetworkStatsSession mSession; |
| private Callback mCallback; |
| private NetworkNameProvider mNetworkController; |
| |
| public DataUsageController(Context context) { |
| mContext = context; |
| mTelephonyManager = TelephonyManager.from(context); |
| mConnectivityManager = ConnectivityManager.from(context); |
| mStatsService = INetworkStatsService.Stub.asInterface( |
| ServiceManager.getService(Context.NETWORK_STATS_SERVICE)); |
| mPolicyManager = NetworkPolicyManager.from(mContext); |
| } |
| |
| public void setNetworkController(NetworkNameProvider networkController) { |
| mNetworkController = networkController; |
| } |
| |
| /** |
| * Returns the default warning level in bytes. |
| */ |
| public long getDefaultWarningLevel() { |
| return MB_IN_BYTES |
| * mContext.getResources().getInteger(R.integer.default_data_warning_level_mb); |
| } |
| |
| private INetworkStatsSession getSession() { |
| if (mSession == null) { |
| try { |
| mSession = mStatsService.openSession(); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Failed to open stats session", e); |
| } catch (RuntimeException e) { |
| Log.w(TAG, "Failed to open stats session", e); |
| } |
| } |
| return mSession; |
| } |
| |
| public void setCallback(Callback callback) { |
| mCallback = callback; |
| } |
| |
| private DataUsageInfo warn(String msg) { |
| Log.w(TAG, "Failed to get data usage, " + msg); |
| return null; |
| } |
| |
| public DataUsageInfo getDataUsageInfo() { |
| final String subscriberId = getActiveSubscriberId(mContext); |
| if (subscriberId == null) { |
| return warn("no subscriber id"); |
| } |
| NetworkTemplate template = NetworkTemplate.buildTemplateMobileAll(subscriberId); |
| template = NetworkTemplate.normalize(template, mTelephonyManager.getMergedSubscriberIds()); |
| |
| return getDataUsageInfo(template); |
| } |
| |
| public DataUsageInfo getWifiDataUsageInfo() { |
| NetworkTemplate template = NetworkTemplate.buildTemplateWifiWildcard(); |
| return getDataUsageInfo(template); |
| } |
| |
| public DataUsageInfo getDataUsageInfo(NetworkTemplate template) { |
| final INetworkStatsSession session = getSession(); |
| if (session == null) { |
| return warn("no stats session"); |
| } |
| final NetworkPolicy policy = findNetworkPolicy(template); |
| try { |
| final NetworkStatsHistory history = session.getHistoryForNetwork(template, FIELDS); |
| final long now = System.currentTimeMillis(); |
| final long start, end; |
| if (policy != null && policy.hasCycle()) { |
| final Pair<ZonedDateTime, ZonedDateTime> cycle = NetworkPolicyManager |
| .cycleIterator(policy).next(); |
| start = cycle.first.toInstant().toEpochMilli(); |
| end = cycle.second.toInstant().toEpochMilli(); |
| } else { |
| // period = last 4 wks |
| end = now; |
| start = now - DateUtils.WEEK_IN_MILLIS * 4; |
| } |
| final long callStart = System.currentTimeMillis(); |
| final NetworkStatsHistory.Entry entry = history.getValues(start, end, now, null); |
| final long callEnd = System.currentTimeMillis(); |
| if (DEBUG) Log.d(TAG, String.format("history call from %s to %s now=%s took %sms: %s", |
| new Date(start), new Date(end), new Date(now), callEnd - callStart, |
| historyEntryToString(entry))); |
| if (entry == null) { |
| return warn("no entry data"); |
| } |
| final long totalBytes = entry.rxBytes + entry.txBytes; |
| final DataUsageInfo usage = new DataUsageInfo(); |
| usage.startDate = start; |
| usage.usageLevel = totalBytes; |
| usage.period = formatDateRange(start, end); |
| usage.cycleStart = start; |
| usage.cycleEnd = end; |
| |
| if (policy != null) { |
| usage.limitLevel = policy.limitBytes > 0 ? policy.limitBytes : 0; |
| usage.warningLevel = policy.warningBytes > 0 ? policy.warningBytes : 0; |
| } else { |
| usage.warningLevel = getDefaultWarningLevel(); |
| } |
| if (usage != null && mNetworkController != null) { |
| usage.carrier = mNetworkController.getMobileDataNetworkName(); |
| } |
| return usage; |
| } catch (RemoteException e) { |
| return warn("remote call failed"); |
| } |
| } |
| |
| private NetworkPolicy findNetworkPolicy(NetworkTemplate template) { |
| if (mPolicyManager == null || template == null) return null; |
| final NetworkPolicy[] policies = mPolicyManager.getNetworkPolicies(); |
| if (policies == null) return null; |
| final int N = policies.length; |
| for (int i = 0; i < N; i++) { |
| final NetworkPolicy policy = policies[i]; |
| if (policy != null && template.equals(policy.template)) { |
| return policy; |
| } |
| } |
| return null; |
| } |
| |
| private static String historyEntryToString(NetworkStatsHistory.Entry entry) { |
| return entry == null ? null : new StringBuilder("Entry[") |
| .append("bucketDuration=").append(entry.bucketDuration) |
| .append(",bucketStart=").append(entry.bucketStart) |
| .append(",activeTime=").append(entry.activeTime) |
| .append(",rxBytes=").append(entry.rxBytes) |
| .append(",rxPackets=").append(entry.rxPackets) |
| .append(",txBytes=").append(entry.txBytes) |
| .append(",txPackets=").append(entry.txPackets) |
| .append(",operations=").append(entry.operations) |
| .append(']').toString(); |
| } |
| |
| public void setMobileDataEnabled(boolean enabled) { |
| Log.d(TAG, "setMobileDataEnabled: enabled=" + enabled); |
| mTelephonyManager.setDataEnabled(enabled); |
| if (mCallback != null) { |
| mCallback.onMobileDataEnabled(enabled); |
| } |
| } |
| |
| public boolean isMobileDataSupported() { |
| // require both supported network and ready SIM |
| return mConnectivityManager.isNetworkSupported(TYPE_MOBILE) |
| && mTelephonyManager.getSimState() == SIM_STATE_READY; |
| } |
| |
| public boolean isMobileDataEnabled() { |
| return mTelephonyManager.getDataEnabled(); |
| } |
| |
| private static String getActiveSubscriberId(Context context) { |
| final TelephonyManager tele = TelephonyManager.from(context); |
| final String actualSubscriberId = tele.getSubscriberId( |
| SubscriptionManager.getDefaultDataSubscriptionId()); |
| return actualSubscriberId; |
| } |
| |
| private String formatDateRange(long start, long end) { |
| final int flags = FORMAT_SHOW_DATE | FORMAT_ABBREV_MONTH; |
| synchronized (PERIOD_BUILDER) { |
| PERIOD_BUILDER.setLength(0); |
| return DateUtils.formatDateRange(mContext, PERIOD_FORMATTER, start, end, flags, null) |
| .toString(); |
| } |
| } |
| |
| public interface NetworkNameProvider { |
| String getMobileDataNetworkName(); |
| } |
| |
| public static class DataUsageInfo { |
| public String carrier; |
| public String period; |
| public long startDate; |
| public long limitLevel; |
| public long warningLevel; |
| public long usageLevel; |
| public long cycleStart; |
| public long cycleEnd; |
| } |
| |
| public interface Callback { |
| void onMobileDataEnabled(boolean enabled); |
| } |
| } |