Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 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.server; |
| 18 | |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 19 | import static android.net.NetworkRecommendationProvider.EXTRA_RECOMMENDATION_RESULT; |
| 20 | import static android.net.NetworkRecommendationProvider.EXTRA_SEQUENCE; |
| 21 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 22 | import android.Manifest.permission; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 23 | import android.annotation.Nullable; |
Jeremy Joslin | 967b581 | 2016-06-02 07:58:14 -0700 | [diff] [blame] | 24 | import android.content.BroadcastReceiver; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 25 | import android.content.ComponentName; |
Jeff Davidson | 56f9f73 | 2014-08-14 16:47:23 -0700 | [diff] [blame] | 26 | import android.content.ContentResolver; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 27 | import android.content.Context; |
Jeff Davidson | b096bdc | 2014-07-01 12:29:11 -0700 | [diff] [blame] | 28 | import android.content.Intent; |
Jeremy Joslin | 967b581 | 2016-06-02 07:58:14 -0700 | [diff] [blame] | 29 | import android.content.IntentFilter; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 30 | import android.content.ServiceConnection; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 31 | import android.content.pm.PackageManager; |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 32 | import android.database.ContentObserver; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 33 | import android.net.INetworkRecommendationProvider; |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 34 | import android.net.INetworkScoreCache; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 35 | import android.net.INetworkScoreService; |
Jeremy Joslin | b2087a1 | 2016-12-13 16:11:51 -0800 | [diff] [blame] | 36 | import android.net.NetworkKey; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 37 | import android.net.NetworkScorerAppManager; |
Jeff Davidson | c741553 | 2014-06-23 18:15:34 -0700 | [diff] [blame] | 38 | import android.net.NetworkScorerAppManager.NetworkScorerAppData; |
Jeremy Joslin | d1daf6d | 2016-11-28 17:47:35 -0800 | [diff] [blame] | 39 | import android.net.RecommendationRequest; |
| 40 | import android.net.RecommendationResult; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 41 | import android.net.ScoredNetwork; |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 42 | import android.net.Uri; |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 43 | import android.os.Binder; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 44 | import android.os.Bundle; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 45 | import android.os.IBinder; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 46 | import android.os.IRemoteCallback; |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 47 | import android.os.RemoteCallbackList; |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 48 | import android.os.RemoteException; |
Jeff Davidson | ac7285d | 2014-08-08 15:12:47 -0700 | [diff] [blame] | 49 | import android.os.UserHandle; |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 50 | import android.provider.Settings.Global; |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 51 | import android.util.ArrayMap; |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 52 | import android.util.Log; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 53 | import android.util.TimedRemoteCaller; |
| 54 | |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 55 | import com.android.internal.annotations.GuardedBy; |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 56 | import com.android.internal.annotations.VisibleForTesting; |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 57 | import com.android.internal.content.PackageMonitor; |
Jeff Sharkey | ba6f8c8 | 2016-11-09 12:25:44 -0700 | [diff] [blame] | 58 | import com.android.internal.os.TransferPipe; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 59 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 60 | import java.io.FileDescriptor; |
Jeff Sharkey | ba6f8c8 | 2016-11-09 12:25:44 -0700 | [diff] [blame] | 61 | import java.io.IOException; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 62 | import java.io.PrintWriter; |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 63 | import java.util.ArrayList; |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 64 | import java.util.Collection; |
| 65 | import java.util.Collections; |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 66 | import java.util.List; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 67 | import java.util.Map; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 68 | import java.util.concurrent.TimeoutException; |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 69 | import java.util.function.Consumer; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 70 | |
| 71 | /** |
| 72 | * Backing service for {@link android.net.NetworkScoreManager}. |
| 73 | * @hide |
| 74 | */ |
| 75 | public class NetworkScoreService extends INetworkScoreService.Stub { |
| 76 | private static final String TAG = "NetworkScoreService"; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 77 | private static final boolean DBG = Log.isLoggable(TAG, Log.DEBUG); |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 78 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 79 | private final Context mContext; |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 80 | private final NetworkScorerAppManager mNetworkScorerAppManager; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 81 | private final RequestRecommendationCaller mRequestRecommendationCaller; |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 82 | @GuardedBy("mScoreCaches") |
| 83 | private final Map<Integer, RemoteCallbackList<INetworkScoreCache>> mScoreCaches; |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 84 | /** Lock used to update mPackageMonitor when scorer package changes occur. */ |
| 85 | private final Object mPackageMonitorLock = new Object[0]; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 86 | private final Object mServiceConnectionLock = new Object[0]; |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 87 | |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 88 | @GuardedBy("mPackageMonitorLock") |
| 89 | private NetworkScorerPackageMonitor mPackageMonitor; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 90 | @GuardedBy("mServiceConnectionLock") |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 91 | private ScoringServiceConnection mServiceConnection; |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 92 | |
Jeremy Joslin | 967b581 | 2016-06-02 07:58:14 -0700 | [diff] [blame] | 93 | private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { |
| 94 | @Override |
| 95 | public void onReceive(Context context, Intent intent) { |
| 96 | final String action = intent.getAction(); |
| 97 | final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); |
| 98 | if (DBG) Log.d(TAG, "Received " + action + " for userId " + userId); |
| 99 | if (userId == UserHandle.USER_NULL) return; |
| 100 | |
| 101 | if (Intent.ACTION_USER_UNLOCKED.equals(action)) { |
| 102 | onUserUnlocked(userId); |
| 103 | } |
| 104 | } |
| 105 | }; |
| 106 | |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 107 | /** |
| 108 | * Clears scores when the active scorer package is no longer valid and |
| 109 | * manages the service connection. |
| 110 | */ |
| 111 | private class NetworkScorerPackageMonitor extends PackageMonitor { |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 112 | final List<String> mPackagesToWatch; |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 113 | |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 114 | private NetworkScorerPackageMonitor(List<String> packagesToWatch) { |
| 115 | mPackagesToWatch = packagesToWatch; |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | @Override |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 119 | public void onPackageAdded(String packageName, int uid) { |
| 120 | evaluateBinding(packageName, true /* forceUnbind */); |
| 121 | } |
| 122 | |
| 123 | @Override |
| 124 | public void onPackageRemoved(String packageName, int uid) { |
| 125 | evaluateBinding(packageName, true /* forceUnbind */); |
| 126 | } |
| 127 | |
| 128 | @Override |
| 129 | public void onPackageModified(String packageName) { |
| 130 | evaluateBinding(packageName, false /* forceUnbind */); |
| 131 | } |
| 132 | |
| 133 | @Override |
| 134 | public boolean onHandleForceStop(Intent intent, String[] packages, int uid, boolean doit) { |
| 135 | if (doit) { // "doit" means the force stop happened instead of just being queried for. |
| 136 | for (String packageName : packages) { |
| 137 | evaluateBinding(packageName, true /* forceUnbind */); |
| 138 | } |
| 139 | } |
| 140 | return super.onHandleForceStop(intent, packages, uid, doit); |
| 141 | } |
| 142 | |
| 143 | @Override |
| 144 | public void onPackageUpdateFinished(String packageName, int uid) { |
| 145 | evaluateBinding(packageName, true /* forceUnbind */); |
| 146 | } |
| 147 | |
| 148 | private void evaluateBinding(String scorerPackageName, boolean forceUnbind) { |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 149 | if (mPackagesToWatch.contains(scorerPackageName)) { |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 150 | if (DBG) { |
| 151 | Log.d(TAG, "Evaluating binding for: " + scorerPackageName |
| 152 | + ", forceUnbind=" + forceUnbind); |
| 153 | } |
| 154 | final NetworkScorerAppData activeScorer = |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 155 | mNetworkScorerAppManager.getActiveScorer(); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 156 | if (activeScorer == null) { |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 157 | // Package change has invalidated a scorer, this will also unbind any service |
| 158 | // connection. |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 159 | if (DBG) Log.d(TAG, "No active scorers available."); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 160 | unbindFromScoringServiceIfNeeded(); |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 161 | } else if (activeScorer.packageName.equals(scorerPackageName)) { |
| 162 | if (DBG) { |
| 163 | Log.d(TAG, "Possible change to the active scorer: " |
| 164 | + activeScorer.packageName); |
| 165 | } |
| 166 | // The scoring service changed in some way. |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 167 | if (forceUnbind) { |
| 168 | unbindFromScoringServiceIfNeeded(); |
| 169 | } |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 170 | bindToScoringServiceIfNeeded(activeScorer); |
| 171 | } |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 172 | } |
| 173 | } |
| 174 | } |
| 175 | |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 176 | /** |
| 177 | * Reevaluates the service binding when the Settings toggle is changed. |
| 178 | */ |
| 179 | private class SettingsObserver extends ContentObserver { |
| 180 | |
| 181 | public SettingsObserver() { |
| 182 | super(null /*handler*/); |
| 183 | } |
| 184 | |
| 185 | @Override |
| 186 | public void onChange(boolean selfChange) { |
| 187 | onChange(selfChange, null); |
| 188 | } |
| 189 | |
| 190 | @Override |
| 191 | public void onChange(boolean selfChange, Uri uri) { |
| 192 | if (DBG) Log.d(TAG, String.format("onChange(%s, %s)", selfChange, uri)); |
| 193 | bindToScoringServiceIfNeeded(); |
| 194 | } |
| 195 | } |
| 196 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 197 | public NetworkScoreService(Context context) { |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 198 | this(context, new NetworkScorerAppManager(context)); |
| 199 | } |
| 200 | |
| 201 | @VisibleForTesting |
| 202 | NetworkScoreService(Context context, NetworkScorerAppManager networkScoreAppManager) { |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 203 | mContext = context; |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 204 | mNetworkScorerAppManager = networkScoreAppManager; |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 205 | mScoreCaches = new ArrayMap<>(); |
Jeremy Joslin | 967b581 | 2016-06-02 07:58:14 -0700 | [diff] [blame] | 206 | IntentFilter filter = new IntentFilter(Intent.ACTION_USER_UNLOCKED); |
| 207 | // TODO: Need to update when we support per-user scorers. http://b/23422763 |
| 208 | mContext.registerReceiverAsUser( |
| 209 | mUserIntentReceiver, UserHandle.SYSTEM, filter, null /* broadcastPermission*/, |
| 210 | null /* scheduler */); |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 211 | // TODO(jjoslin): 12/15/16 - Make timeout configurable. |
| 212 | mRequestRecommendationCaller = |
| 213 | new RequestRecommendationCaller(TimedRemoteCaller.DEFAULT_CALL_TIMEOUT_MILLIS); |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 214 | } |
| 215 | |
| 216 | /** Called when the system is ready to run third-party code but before it actually does so. */ |
| 217 | void systemReady() { |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 218 | if (DBG) Log.d(TAG, "systemReady"); |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 219 | registerPackageMonitorIfNeeded(); |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 220 | registerRecommendationSettingObserverIfNeeded(); |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 221 | } |
| 222 | |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 223 | /** Called when the system is ready for us to start third-party code. */ |
| 224 | void systemRunning() { |
| 225 | if (DBG) Log.d(TAG, "systemRunning"); |
| 226 | bindToScoringServiceIfNeeded(); |
| 227 | } |
| 228 | |
Jeremy Joslin | 967b581 | 2016-06-02 07:58:14 -0700 | [diff] [blame] | 229 | private void onUserUnlocked(int userId) { |
| 230 | registerPackageMonitorIfNeeded(); |
| 231 | bindToScoringServiceIfNeeded(); |
| 232 | } |
| 233 | |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 234 | private void registerRecommendationSettingObserverIfNeeded() { |
| 235 | final List<String> providerPackages = |
| 236 | mNetworkScorerAppManager.getPotentialRecommendationProviderPackages(); |
| 237 | if (!providerPackages.isEmpty()) { |
| 238 | final ContentResolver resolver = mContext.getContentResolver(); |
| 239 | final Uri uri = Global.getUriFor(Global.NETWORK_RECOMMENDATIONS_ENABLED); |
| 240 | resolver.registerContentObserver(uri, false, new SettingsObserver()); |
| 241 | } |
| 242 | } |
| 243 | |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 244 | private void registerPackageMonitorIfNeeded() { |
| 245 | if (DBG) Log.d(TAG, "registerPackageMonitorIfNeeded"); |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 246 | final List<String> providerPackages = |
| 247 | mNetworkScorerAppManager.getPotentialRecommendationProviderPackages(); |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 248 | synchronized (mPackageMonitorLock) { |
| 249 | // Unregister the current monitor if needed. |
| 250 | if (mPackageMonitor != null) { |
| 251 | if (DBG) { |
| 252 | Log.d(TAG, "Unregistering package monitor for " |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 253 | + mPackageMonitor.mPackagesToWatch); |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 254 | } |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 255 | mPackageMonitor.unregister(); |
| 256 | mPackageMonitor = null; |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 257 | } |
| 258 | |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 259 | // Create and register the monitor if there are packages that could be providers. |
| 260 | if (!providerPackages.isEmpty()) { |
| 261 | mPackageMonitor = new NetworkScorerPackageMonitor(providerPackages); |
Xiaohui Chen | e4de5a0 | 2015-09-22 15:33:31 -0700 | [diff] [blame] | 262 | // TODO: Need to update when we support per-user scorers. http://b/23422763 |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 263 | mPackageMonitor.register(mContext, null /* thread */, UserHandle.SYSTEM, |
| 264 | false /* externalStorage */); |
| 265 | if (DBG) { |
| 266 | Log.d(TAG, "Registered package monitor for " |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 267 | + mPackageMonitor.mPackagesToWatch); |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 268 | } |
| 269 | } |
| 270 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 271 | } |
| 272 | |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 273 | private void bindToScoringServiceIfNeeded() { |
| 274 | if (DBG) Log.d(TAG, "bindToScoringServiceIfNeeded"); |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 275 | NetworkScorerAppData scorerData = mNetworkScorerAppManager.getActiveScorer(); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 276 | bindToScoringServiceIfNeeded(scorerData); |
| 277 | } |
| 278 | |
| 279 | private void bindToScoringServiceIfNeeded(NetworkScorerAppData scorerData) { |
| 280 | if (DBG) Log.d(TAG, "bindToScoringServiceIfNeeded(" + scorerData + ")"); |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 281 | if (scorerData != null && scorerData.recommendationServiceClassName != null) { |
| 282 | ComponentName componentName = new ComponentName(scorerData.packageName, |
| 283 | scorerData.recommendationServiceClassName); |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 284 | synchronized (mServiceConnectionLock) { |
| 285 | // If we're connected to a different component then drop it. |
| 286 | if (mServiceConnection != null |
| 287 | && !mServiceConnection.mComponentName.equals(componentName)) { |
| 288 | unbindFromScoringServiceIfNeeded(); |
| 289 | } |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 290 | |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 291 | // If we're not connected at all then create a new connection. |
| 292 | if (mServiceConnection == null) { |
| 293 | mServiceConnection = new ScoringServiceConnection(componentName); |
| 294 | } |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 295 | |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 296 | // Make sure the connection is connected (idempotent) |
| 297 | mServiceConnection.connect(mContext); |
| 298 | } |
Jeremy Joslin | 967b581 | 2016-06-02 07:58:14 -0700 | [diff] [blame] | 299 | } else { // otherwise make sure it isn't bound. |
| 300 | unbindFromScoringServiceIfNeeded(); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 301 | } |
| 302 | } |
| 303 | |
| 304 | private void unbindFromScoringServiceIfNeeded() { |
| 305 | if (DBG) Log.d(TAG, "unbindFromScoringServiceIfNeeded"); |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 306 | synchronized (mServiceConnectionLock) { |
| 307 | if (mServiceConnection != null) { |
| 308 | mServiceConnection.disconnect(mContext); |
| 309 | } |
| 310 | mServiceConnection = null; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 311 | } |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 312 | clearInternal(); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 313 | } |
| 314 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 315 | @Override |
| 316 | public boolean updateScores(ScoredNetwork[] networks) { |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 317 | if (!mNetworkScorerAppManager.isCallerActiveScorer(getCallingUid())) { |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 318 | throw new SecurityException("Caller with UID " + getCallingUid() + |
| 319 | " is not the active scorer."); |
| 320 | } |
| 321 | |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 322 | final long token = Binder.clearCallingIdentity(); |
| 323 | try { |
| 324 | // Separate networks by type. |
| 325 | Map<Integer, List<ScoredNetwork>> networksByType = new ArrayMap<>(); |
| 326 | for (ScoredNetwork network : networks) { |
| 327 | List<ScoredNetwork> networkList = networksByType.get(network.networkKey.type); |
| 328 | if (networkList == null) { |
| 329 | networkList = new ArrayList<>(); |
| 330 | networksByType.put(network.networkKey.type, networkList); |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 331 | } |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 332 | networkList.add(network); |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 333 | } |
| 334 | |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 335 | // Pass the scores of each type down to the appropriate network scorer. |
| 336 | for (final Map.Entry<Integer, List<ScoredNetwork>> entry : networksByType.entrySet()) { |
| 337 | final RemoteCallbackList<INetworkScoreCache> callbackList; |
| 338 | final boolean isEmpty; |
| 339 | synchronized (mScoreCaches) { |
| 340 | callbackList = mScoreCaches.get(entry.getKey()); |
| 341 | isEmpty = callbackList == null |
| 342 | || callbackList.getRegisteredCallbackCount() == 0; |
| 343 | } |
| 344 | if (isEmpty) { |
| 345 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 346 | Log.v(TAG, "No scorer registered for type " + entry.getKey() |
| 347 | + ", discarding"); |
| 348 | } |
| 349 | continue; |
| 350 | } |
| 351 | |
| 352 | sendCallback(new Consumer<INetworkScoreCache>() { |
| 353 | @Override |
| 354 | public void accept(INetworkScoreCache networkScoreCache) { |
| 355 | try { |
| 356 | networkScoreCache.updateScores(entry.getValue()); |
| 357 | } catch (RemoteException e) { |
| 358 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 359 | Log.v(TAG, "Unable to update scores of type " + entry.getKey(), e); |
| 360 | } |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 361 | } |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 362 | } |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 363 | }, Collections.singleton(callbackList)); |
| 364 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 365 | |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 366 | return true; |
| 367 | } finally { |
| 368 | Binder.restoreCallingIdentity(token); |
| 369 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 370 | } |
| 371 | |
| 372 | @Override |
| 373 | public boolean clearScores() { |
Jeff Davidson | 1619779 | 2014-11-03 17:39:54 -0800 | [diff] [blame] | 374 | // Only the active scorer or the system (who can broadcast BROADCAST_NETWORK_PRIVILEGED) |
| 375 | // should be allowed to flush all scores. |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 376 | if (mNetworkScorerAppManager.isCallerActiveScorer(getCallingUid()) || |
Jeff Davidson | 1619779 | 2014-11-03 17:39:54 -0800 | [diff] [blame] | 377 | mContext.checkCallingOrSelfPermission(permission.BROADCAST_NETWORK_PRIVILEGED) == |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 378 | PackageManager.PERMISSION_GRANTED) { |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 379 | final long token = Binder.clearCallingIdentity(); |
| 380 | try { |
| 381 | clearInternal(); |
| 382 | return true; |
| 383 | } finally { |
| 384 | Binder.restoreCallingIdentity(token); |
| 385 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 386 | } else { |
| 387 | throw new SecurityException( |
| 388 | "Caller is neither the active scorer nor the scorer manager."); |
| 389 | } |
| 390 | } |
| 391 | |
| 392 | @Override |
| 393 | public boolean setActiveScorer(String packageName) { |
Jeff Davidson | e56f2bb | 2014-11-05 11:14:19 -0800 | [diff] [blame] | 394 | // TODO: For now, since SCORE_NETWORKS requires an app to be privileged, we allow such apps |
| 395 | // to directly set the scorer app rather than having to use the consent dialog. The |
| 396 | // assumption is that anyone bundling a scorer app with the system is trusted by the OEM to |
| 397 | // do the right thing and not enable this feature without explaining it to the user. |
| 398 | // In the future, should this API be opened to 3p apps, we will need to lock this down and |
| 399 | // figure out another way to streamline the UX. |
| 400 | |
| 401 | // mContext.enforceCallingOrSelfPermission(permission.BROADCAST_NETWORK_PRIVILEGED, TAG); |
| 402 | mContext.enforceCallingOrSelfPermission(permission.SCORE_NETWORKS, TAG); |
| 403 | |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 404 | // Scorers (recommendation providers) are selected and no longer set. |
| 405 | return false; |
Jeff Davidson | 26fd143 | 2014-07-29 09:39:52 -0700 | [diff] [blame] | 406 | } |
| 407 | |
| 408 | @Override |
| 409 | public void disableScoring() { |
Jeff Davidson | 1619779 | 2014-11-03 17:39:54 -0800 | [diff] [blame] | 410 | // Only the active scorer or the system (who can broadcast BROADCAST_NETWORK_PRIVILEGED) |
| 411 | // should be allowed to disable scoring. |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 412 | if (mNetworkScorerAppManager.isCallerActiveScorer(getCallingUid()) || |
Jeff Davidson | 1619779 | 2014-11-03 17:39:54 -0800 | [diff] [blame] | 413 | mContext.checkCallingOrSelfPermission(permission.BROADCAST_NETWORK_PRIVILEGED) == |
Jeff Davidson | 26fd143 | 2014-07-29 09:39:52 -0700 | [diff] [blame] | 414 | PackageManager.PERMISSION_GRANTED) { |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 415 | // no-op for now but we could write to the setting if needed. |
Jeff Davidson | 26fd143 | 2014-07-29 09:39:52 -0700 | [diff] [blame] | 416 | } else { |
| 417 | throw new SecurityException( |
| 418 | "Caller is neither the active scorer nor the scorer manager."); |
Jeff Davidson | b096bdc | 2014-07-01 12:29:11 -0700 | [diff] [blame] | 419 | } |
Jeff Davidson | 26fd143 | 2014-07-29 09:39:52 -0700 | [diff] [blame] | 420 | } |
| 421 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 422 | /** Clear scores. Callers are responsible for checking permissions as appropriate. */ |
| 423 | private void clearInternal() { |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 424 | sendCallback(new Consumer<INetworkScoreCache>() { |
| 425 | @Override |
| 426 | public void accept(INetworkScoreCache networkScoreCache) { |
| 427 | try { |
| 428 | networkScoreCache.clearScores(); |
| 429 | } catch (RemoteException e) { |
| 430 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 431 | Log.v(TAG, "Unable to clear scores", e); |
| 432 | } |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 433 | } |
| 434 | } |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 435 | }, getScoreCacheLists()); |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 436 | } |
| 437 | |
| 438 | @Override |
Jeremy Joslin | c5ac587 | 2016-11-30 15:05:40 -0800 | [diff] [blame] | 439 | public void registerNetworkScoreCache(int networkType, |
| 440 | INetworkScoreCache scoreCache, |
| 441 | int filterType) { |
Jeff Davidson | 1619779 | 2014-11-03 17:39:54 -0800 | [diff] [blame] | 442 | mContext.enforceCallingOrSelfPermission(permission.BROADCAST_NETWORK_PRIVILEGED, TAG); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 443 | final long token = Binder.clearCallingIdentity(); |
| 444 | try { |
| 445 | synchronized (mScoreCaches) { |
| 446 | RemoteCallbackList<INetworkScoreCache> callbackList = mScoreCaches.get(networkType); |
| 447 | if (callbackList == null) { |
| 448 | callbackList = new RemoteCallbackList<>(); |
| 449 | mScoreCaches.put(networkType, callbackList); |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 450 | } |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 451 | if (!callbackList.register(scoreCache, filterType)) { |
| 452 | if (callbackList.getRegisteredCallbackCount() == 0) { |
| 453 | mScoreCaches.remove(networkType); |
| 454 | } |
| 455 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 456 | Log.v(TAG, "Unable to register NetworkScoreCache for type " + networkType); |
| 457 | } |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 458 | } |
| 459 | } |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 460 | } finally { |
| 461 | Binder.restoreCallingIdentity(token); |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 462 | } |
| 463 | } |
| 464 | |
| 465 | @Override |
| 466 | public void unregisterNetworkScoreCache(int networkType, INetworkScoreCache scoreCache) { |
| 467 | mContext.enforceCallingOrSelfPermission(permission.BROADCAST_NETWORK_PRIVILEGED, TAG); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 468 | final long token = Binder.clearCallingIdentity(); |
| 469 | try { |
| 470 | synchronized (mScoreCaches) { |
| 471 | RemoteCallbackList<INetworkScoreCache> callbackList = mScoreCaches.get(networkType); |
| 472 | if (callbackList == null || !callbackList.unregister(scoreCache)) { |
| 473 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 474 | Log.v(TAG, "Unable to unregister NetworkScoreCache for type " |
| 475 | + networkType); |
| 476 | } |
| 477 | } else if (callbackList.getRegisteredCallbackCount() == 0) { |
| 478 | mScoreCaches.remove(networkType); |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 479 | } |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 480 | } |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 481 | } finally { |
| 482 | Binder.restoreCallingIdentity(token); |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 483 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 484 | } |
| 485 | |
| 486 | @Override |
Jeremy Joslin | d1daf6d | 2016-11-28 17:47:35 -0800 | [diff] [blame] | 487 | public RecommendationResult requestRecommendation(RecommendationRequest request) { |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 488 | mContext.enforceCallingOrSelfPermission(permission.BROADCAST_NETWORK_PRIVILEGED, TAG); |
| 489 | throwIfCalledOnMainThread(); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 490 | final long token = Binder.clearCallingIdentity(); |
| 491 | try { |
| 492 | final INetworkRecommendationProvider provider = getRecommendationProvider(); |
| 493 | if (provider != null) { |
| 494 | try { |
| 495 | return mRequestRecommendationCaller.getRecommendationResult(provider, request); |
| 496 | } catch (RemoteException | TimeoutException e) { |
| 497 | Log.w(TAG, "Failed to request a recommendation.", e); |
| 498 | // TODO(jjoslin): 12/15/16 - Keep track of failures. |
| 499 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 500 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 501 | |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 502 | if (DBG) { |
| 503 | Log.d(TAG, "Returning the default network recommendation."); |
| 504 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 505 | |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 506 | if (request != null && request.getCurrentSelectedConfig() != null) { |
| 507 | return RecommendationResult.createConnectRecommendation( |
| 508 | request.getCurrentSelectedConfig()); |
| 509 | } |
| 510 | return RecommendationResult.createDoNotConnectRecommendation(); |
| 511 | } finally { |
| 512 | Binder.restoreCallingIdentity(token); |
Jeremy Joslin | d1daf6d | 2016-11-28 17:47:35 -0800 | [diff] [blame] | 513 | } |
Jeremy Joslin | d1daf6d | 2016-11-28 17:47:35 -0800 | [diff] [blame] | 514 | } |
| 515 | |
| 516 | @Override |
Jeremy Joslin | b2087a1 | 2016-12-13 16:11:51 -0800 | [diff] [blame] | 517 | public boolean requestScores(NetworkKey[] networks) { |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 518 | mContext.enforceCallingOrSelfPermission(permission.BROADCAST_NETWORK_PRIVILEGED, TAG); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 519 | final long token = Binder.clearCallingIdentity(); |
| 520 | try { |
| 521 | final INetworkRecommendationProvider provider = getRecommendationProvider(); |
| 522 | if (provider != null) { |
| 523 | try { |
| 524 | provider.requestScores(networks); |
| 525 | // TODO(jjoslin): 12/15/16 - Consider pushing null scores into the cache to |
| 526 | // prevent repeated requests for the same scores. |
| 527 | return true; |
| 528 | } catch (RemoteException e) { |
| 529 | Log.w(TAG, "Failed to request scores.", e); |
| 530 | // TODO(jjoslin): 12/15/16 - Keep track of failures. |
| 531 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 532 | } |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame^] | 533 | return false; |
| 534 | } finally { |
| 535 | Binder.restoreCallingIdentity(token); |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 536 | } |
Jeremy Joslin | b2087a1 | 2016-12-13 16:11:51 -0800 | [diff] [blame] | 537 | } |
| 538 | |
| 539 | @Override |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 540 | protected void dump(final FileDescriptor fd, final PrintWriter writer, final String[] args) { |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 541 | mContext.enforceCallingOrSelfPermission(permission.DUMP, TAG); |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 542 | NetworkScorerAppData currentScorer = mNetworkScorerAppManager.getActiveScorer(); |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 543 | if (currentScorer == null) { |
| 544 | writer.println("Scoring is disabled."); |
| 545 | return; |
| 546 | } |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 547 | writer.println("Current scorer: " + currentScorer.packageName); |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 548 | |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 549 | sendCallback(new Consumer<INetworkScoreCache>() { |
| 550 | @Override |
| 551 | public void accept(INetworkScoreCache networkScoreCache) { |
| 552 | try { |
| 553 | TransferPipe.dumpAsync(networkScoreCache.asBinder(), fd, args); |
| 554 | } catch (IOException | RemoteException e) { |
| 555 | writer.println("Failed to dump score cache: " + e); |
| 556 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 557 | } |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 558 | }, getScoreCacheLists()); |
| 559 | |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 560 | synchronized (mServiceConnectionLock) { |
| 561 | if (mServiceConnection != null) { |
| 562 | mServiceConnection.dump(fd, writer, args); |
| 563 | } else { |
| 564 | writer.println("ScoringServiceConnection: null"); |
| 565 | } |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 566 | } |
| 567 | writer.flush(); |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 568 | } |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 569 | |
| 570 | /** |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 571 | * Returns a {@link Collection} of all {@link RemoteCallbackList}s that are currently active. |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 572 | * |
| 573 | * <p>May be used to perform an action on all score caches without potentially strange behavior |
| 574 | * if a new scorer is registered during that action's execution. |
| 575 | */ |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 576 | private Collection<RemoteCallbackList<INetworkScoreCache>> getScoreCacheLists() { |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 577 | synchronized (mScoreCaches) { |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 578 | return new ArrayList<>(mScoreCaches.values()); |
| 579 | } |
| 580 | } |
| 581 | |
| 582 | private void sendCallback(Consumer<INetworkScoreCache> consumer, |
| 583 | Collection<RemoteCallbackList<INetworkScoreCache>> remoteCallbackLists) { |
| 584 | for (RemoteCallbackList<INetworkScoreCache> callbackList : remoteCallbackLists) { |
| 585 | synchronized (callbackList) { // Ensure only one active broadcast per RemoteCallbackList |
| 586 | final int count = callbackList.beginBroadcast(); |
| 587 | try { |
| 588 | for (int i = 0; i < count; i++) { |
| 589 | consumer.accept(callbackList.getBroadcastItem(i)); |
| 590 | } |
| 591 | } finally { |
| 592 | callbackList.finishBroadcast(); |
| 593 | } |
| 594 | } |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 595 | } |
| 596 | } |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 597 | |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 598 | private void throwIfCalledOnMainThread() { |
| 599 | if (Thread.currentThread() == mContext.getMainLooper().getThread()) { |
| 600 | throw new RuntimeException("Cannot invoke on the main thread"); |
| 601 | } |
| 602 | } |
| 603 | |
| 604 | @Nullable |
| 605 | private INetworkRecommendationProvider getRecommendationProvider() { |
| 606 | synchronized (mServiceConnectionLock) { |
| 607 | if (mServiceConnection != null) { |
| 608 | return mServiceConnection.getRecommendationProvider(); |
| 609 | } |
| 610 | } |
| 611 | return null; |
| 612 | } |
| 613 | |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 614 | private static class ScoringServiceConnection implements ServiceConnection { |
| 615 | private final ComponentName mComponentName; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 616 | private volatile boolean mBound = false; |
| 617 | private volatile boolean mConnected = false; |
| 618 | private volatile INetworkRecommendationProvider mRecommendationProvider; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 619 | |
| 620 | ScoringServiceConnection(ComponentName componentName) { |
| 621 | mComponentName = componentName; |
| 622 | } |
| 623 | |
| 624 | void connect(Context context) { |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 625 | if (!mBound) { |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 626 | Intent service = new Intent(); |
| 627 | service.setComponent(mComponentName); |
| 628 | mBound = context.bindServiceAsUser(service, this, |
| 629 | Context.BIND_AUTO_CREATE | Context.BIND_FOREGROUND_SERVICE, |
| 630 | UserHandle.SYSTEM); |
| 631 | if (!mBound) { |
| 632 | Log.w(TAG, "Bind call failed for " + service); |
| 633 | } else { |
| 634 | if (DBG) Log.d(TAG, "ScoringServiceConnection bound."); |
| 635 | } |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 636 | } |
| 637 | } |
| 638 | |
| 639 | void disconnect(Context context) { |
| 640 | try { |
| 641 | if (mBound) { |
| 642 | mBound = false; |
| 643 | context.unbindService(this); |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 644 | if (DBG) Log.d(TAG, "ScoringServiceConnection unbound."); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 645 | } |
| 646 | } catch (RuntimeException e) { |
| 647 | Log.e(TAG, "Unbind failed.", e); |
| 648 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 649 | |
| 650 | mRecommendationProvider = null; |
| 651 | } |
| 652 | |
| 653 | INetworkRecommendationProvider getRecommendationProvider() { |
| 654 | return mRecommendationProvider; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 655 | } |
| 656 | |
| 657 | @Override |
| 658 | public void onServiceConnected(ComponentName name, IBinder service) { |
| 659 | if (DBG) Log.d(TAG, "ScoringServiceConnection: " + name.flattenToString()); |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 660 | mConnected = true; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 661 | mRecommendationProvider = INetworkRecommendationProvider.Stub.asInterface(service); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 662 | } |
| 663 | |
| 664 | @Override |
| 665 | public void onServiceDisconnected(ComponentName name) { |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 666 | if (DBG) { |
| 667 | Log.d(TAG, "ScoringServiceConnection, disconnected: " + name.flattenToString()); |
| 668 | } |
| 669 | mConnected = false; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 670 | mRecommendationProvider = null; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 671 | } |
| 672 | |
| 673 | public void dump(FileDescriptor fd, PrintWriter writer, String[] args) { |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 674 | writer.println("ScoringServiceConnection: " + mComponentName + ", bound: " + mBound |
| 675 | + ", connected: " + mConnected); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 676 | } |
| 677 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 678 | |
| 679 | /** |
| 680 | * Executes the async requestRecommendation() call with a timeout. |
| 681 | */ |
| 682 | private static final class RequestRecommendationCaller |
| 683 | extends TimedRemoteCaller<RecommendationResult> { |
| 684 | private final IRemoteCallback mCallback; |
| 685 | |
| 686 | RequestRecommendationCaller(long callTimeoutMillis) { |
| 687 | super(callTimeoutMillis); |
| 688 | mCallback = new IRemoteCallback.Stub() { |
| 689 | @Override |
| 690 | public void sendResult(Bundle data) throws RemoteException { |
| 691 | final RecommendationResult result = |
| 692 | data.getParcelable(EXTRA_RECOMMENDATION_RESULT); |
| 693 | final int sequence = data.getInt(EXTRA_SEQUENCE, -1); |
| 694 | onRemoteMethodResult(result, sequence); |
| 695 | } |
| 696 | }; |
| 697 | } |
| 698 | |
| 699 | /** |
| 700 | * Runs the requestRecommendation() call on the given {@link INetworkRecommendationProvider} |
| 701 | * instance. |
| 702 | * |
| 703 | * @param target the {@link INetworkRecommendationProvider} to request a recommendation |
| 704 | * from |
| 705 | * @param request the {@link RecommendationRequest} from the calling client |
| 706 | * @return a {@link RecommendationResult} from the provider |
| 707 | * @throws RemoteException if the call failed |
| 708 | * @throws TimeoutException if the call took longer than the set timeout |
| 709 | */ |
| 710 | RecommendationResult getRecommendationResult(INetworkRecommendationProvider target, |
| 711 | RecommendationRequest request) throws RemoteException, TimeoutException { |
| 712 | final int sequence = onBeforeRemoteCall(); |
| 713 | target.requestRecommendation(request, mCallback, sequence); |
| 714 | return getResultTimed(sequence); |
| 715 | } |
| 716 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 717 | } |