1/* 2 * Copyright (C) 2015 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 17package android.app; 18 19import android.accounts.AccountManager; 20import android.accounts.IAccountManager; 21import android.app.ContextImpl.ServiceInitializationState; 22import android.app.admin.DevicePolicyManager; 23import android.app.admin.IDevicePolicyManager; 24import android.app.job.IJobScheduler; 25import android.app.job.JobScheduler; 26import android.app.slice.SliceManager; 27import android.app.timezone.RulesManager; 28import android.app.trust.TrustManager; 29import android.app.usage.IStorageStatsManager; 30import android.app.usage.IUsageStatsManager; 31import android.app.usage.NetworkStatsManager; 32import android.app.usage.StorageStatsManager; 33import android.app.usage.UsageStatsManager; 34import android.appwidget.AppWidgetManager; 35import android.bluetooth.BluetoothManager; 36import android.companion.CompanionDeviceManager; 37import android.companion.ICompanionDeviceManager; 38import android.content.ClipboardManager; 39import android.content.Context; 40import android.content.IRestrictionsManager; 41import android.content.RestrictionsManager; 42import android.content.pm.CrossProfileApps; 43import android.content.pm.ICrossProfileApps; 44import android.content.pm.IShortcutService; 45import android.content.pm.LauncherApps; 46import android.content.pm.PackageManager; 47import android.content.pm.ShortcutManager; 48import android.content.res.Resources; 49import android.hardware.ConsumerIrManager; 50import android.hardware.ISerialManager; 51import android.hardware.SensorManager; 52import android.hardware.SerialManager; 53import android.hardware.SystemSensorManager; 54import android.hardware.camera2.CameraManager; 55import android.hardware.display.DisplayManager; 56import android.hardware.fingerprint.FingerprintManager; 57import android.hardware.fingerprint.IFingerprintService; 58import android.hardware.hdmi.HdmiControlManager; 59import android.hardware.hdmi.IHdmiControlService; 60import android.hardware.input.InputManager; 61import android.hardware.location.ContextHubManager; 62import android.hardware.radio.RadioManager; 63import android.hardware.usb.IUsbManager; 64import android.hardware.usb.UsbManager; 65import android.location.CountryDetector; 66import android.location.ICountryDetector; 67import android.location.ILocationManager; 68import android.location.LocationManager; 69import android.media.AudioManager; 70import android.media.MediaRouter; 71import android.media.midi.IMidiManager; 72import android.media.midi.MidiManager; 73import android.media.projection.MediaProjectionManager; 74import android.media.session.MediaSessionManager; 75import android.media.soundtrigger.SoundTriggerManager; 76import android.media.tv.ITvInputManager; 77import android.media.tv.TvInputManager; 78import android.net.ConnectivityManager; 79import android.net.ConnectivityThread; 80import android.net.EthernetManager; 81import android.net.IConnectivityManager; 82import android.net.IEthernetManager; 83import android.net.IIpSecService; 84import android.net.INetworkPolicyManager; 85import android.net.IpSecManager; 86import android.net.NetworkPolicyManager; 87import android.net.NetworkScoreManager; 88import android.net.NetworkWatchlistManager; 89import android.net.lowpan.ILowpanManager; 90import android.net.lowpan.LowpanManager; 91import android.net.nsd.INsdManager; 92import android.net.nsd.NsdManager; 93import android.net.wifi.IWifiManager; 94import android.net.wifi.IWifiScanner; 95import android.net.wifi.RttManager; 96import android.net.wifi.WifiManager; 97import android.net.wifi.WifiScanner; 98import android.net.wifi.aware.IWifiAwareManager; 99import android.net.wifi.aware.WifiAwareManager; 100import android.net.wifi.p2p.IWifiP2pManager; 101import android.net.wifi.p2p.WifiP2pManager; 102import android.net.wifi.rtt.IWifiRttManager; 103import android.net.wifi.rtt.WifiRttManager; 104import android.nfc.NfcManager; 105import android.os.BatteryManager; 106import android.os.BatteryStats; 107import android.os.Build; 108import android.os.DeviceIdleManager; 109import android.os.DropBoxManager; 110import android.os.HardwarePropertiesManager; 111import android.os.IBatteryPropertiesRegistrar; 112import android.os.IBinder; 113import android.os.IDeviceIdleController; 114import android.os.IHardwarePropertiesManager; 115import android.os.IPowerManager; 116import android.os.IRecoverySystem; 117import android.os.ISystemUpdateManager; 118import android.os.IUserManager; 119import android.os.IncidentManager; 120import android.os.PowerManager; 121import android.os.RecoverySystem; 122import android.os.ServiceManager; 123import android.os.ServiceManager.ServiceNotFoundException; 124import android.os.SystemUpdateManager; 125import android.os.SystemVibrator; 126import android.os.UserHandle; 127import android.os.UserManager; 128import android.os.Vibrator; 129import android.os.health.SystemHealthManager; 130import android.os.storage.StorageManager; 131import android.print.IPrintManager; 132import android.print.PrintManager; 133import android.service.oemlock.IOemLockService; 134import android.service.oemlock.OemLockManager; 135import android.service.persistentdata.IPersistentDataBlockService; 136import android.service.persistentdata.PersistentDataBlockManager; 137import android.service.vr.IVrManager; 138import android.telecom.TelecomManager; 139import android.telephony.CarrierConfigManager; 140import android.telephony.SubscriptionManager; 141import android.telephony.TelephonyManager; 142import android.telephony.euicc.EuiccCardManager; 143import android.telephony.euicc.EuiccManager; 144import android.util.Log; 145import android.view.ContextThemeWrapper; 146import android.view.LayoutInflater; 147import android.view.WindowManager; 148import android.view.WindowManagerImpl; 149import android.view.accessibility.AccessibilityManager; 150import android.view.accessibility.CaptioningManager; 151import android.view.autofill.AutofillManager; 152import android.view.autofill.IAutoFillManager; 153import android.view.inputmethod.InputMethodManager; 154import android.view.textclassifier.TextClassificationManager; 155import android.view.textservice.TextServicesManager; 156 157import com.android.internal.app.IAppOpsService; 158import com.android.internal.app.IBatteryStats; 159import com.android.internal.app.ISoundTriggerService; 160import com.android.internal.appwidget.IAppWidgetService; 161import com.android.internal.net.INetworkWatchlistManager; 162import com.android.internal.os.IDropBoxManagerService; 163import com.android.internal.policy.PhoneLayoutInflater; 164 165import java.util.HashMap; 166 167/** 168 * Manages all of the system services that can be returned by {@link Context#getSystemService}. 169 * Used by {@link ContextImpl}. 170 */ 171final class SystemServiceRegistry { 172 private static final String TAG = "SystemServiceRegistry"; 173 174 // Service registry information. 175 // This information is never changed once static initialization has completed. 176 private static final HashMap<Class<?>, String> SYSTEM_SERVICE_NAMES = 177 new HashMap<Class<?>, String>(); 178 private static final HashMap<String, ServiceFetcher<?>> SYSTEM_SERVICE_FETCHERS = 179 new HashMap<String, ServiceFetcher<?>>(); 180 private static int sServiceCacheSize; 181 182 // Not instantiable. 183 private SystemServiceRegistry() { } 184 185 static { 186 registerService(Context.ACCESSIBILITY_SERVICE, AccessibilityManager.class, 187 new CachedServiceFetcher<AccessibilityManager>() { 188 @Override 189 public AccessibilityManager createService(ContextImpl ctx) { 190 return AccessibilityManager.getInstance(ctx); 191 }}); 192 193 registerService(Context.CAPTIONING_SERVICE, CaptioningManager.class, 194 new CachedServiceFetcher<CaptioningManager>() { 195 @Override 196 public CaptioningManager createService(ContextImpl ctx) { 197 return new CaptioningManager(ctx); 198 }}); 199 200 registerService(Context.ACCOUNT_SERVICE, AccountManager.class, 201 new CachedServiceFetcher<AccountManager>() { 202 @Override 203 public AccountManager createService(ContextImpl ctx) throws ServiceNotFoundException { 204 IBinder b = ServiceManager.getServiceOrThrow(Context.ACCOUNT_SERVICE); 205 IAccountManager service = IAccountManager.Stub.asInterface(b); 206 return new AccountManager(ctx, service); 207 }}); 208 209 registerService(Context.ACTIVITY_SERVICE, ActivityManager.class, 210 new CachedServiceFetcher<ActivityManager>() { 211 @Override 212 public ActivityManager createService(ContextImpl ctx) { 213 return new ActivityManager(ctx.getOuterContext(), ctx.mMainThread.getHandler()); 214 }}); 215 216 registerService(Context.ALARM_SERVICE, AlarmManager.class, 217 new CachedServiceFetcher<AlarmManager>() { 218 @Override 219 public AlarmManager createService(ContextImpl ctx) throws ServiceNotFoundException { 220 IBinder b = ServiceManager.getServiceOrThrow(Context.ALARM_SERVICE); 221 IAlarmManager service = IAlarmManager.Stub.asInterface(b); 222 return new AlarmManager(service, ctx); 223 }}); 224 225 registerService(Context.AUDIO_SERVICE, AudioManager.class, 226 new CachedServiceFetcher<AudioManager>() { 227 @Override 228 public AudioManager createService(ContextImpl ctx) { 229 return new AudioManager(ctx); 230 }}); 231 232 registerService(Context.MEDIA_ROUTER_SERVICE, MediaRouter.class, 233 new CachedServiceFetcher<MediaRouter>() { 234 @Override 235 public MediaRouter createService(ContextImpl ctx) { 236 return new MediaRouter(ctx); 237 }}); 238 239 registerService(Context.BLUETOOTH_SERVICE, BluetoothManager.class, 240 new CachedServiceFetcher<BluetoothManager>() { 241 @Override 242 public BluetoothManager createService(ContextImpl ctx) { 243 return new BluetoothManager(ctx); 244 }}); 245 246 registerService(Context.HDMI_CONTROL_SERVICE, HdmiControlManager.class, 247 new StaticServiceFetcher<HdmiControlManager>() { 248 @Override 249 public HdmiControlManager createService() throws ServiceNotFoundException { 250 IBinder b = ServiceManager.getServiceOrThrow(Context.HDMI_CONTROL_SERVICE); 251 return new HdmiControlManager(IHdmiControlService.Stub.asInterface(b)); 252 }}); 253 254 registerService(Context.TEXT_CLASSIFICATION_SERVICE, TextClassificationManager.class, 255 new CachedServiceFetcher<TextClassificationManager>() { 256 @Override 257 public TextClassificationManager createService(ContextImpl ctx) { 258 return new TextClassificationManager(ctx); 259 }}); 260 261 registerService(Context.CLIPBOARD_SERVICE, ClipboardManager.class, 262 new CachedServiceFetcher<ClipboardManager>() { 263 @Override 264 public ClipboardManager createService(ContextImpl ctx) throws ServiceNotFoundException { 265 return new ClipboardManager(ctx.getOuterContext(), 266 ctx.mMainThread.getHandler()); 267 }}); 268 269 // The clipboard service moved to a new package. If someone asks for the old 270 // interface by class then we want to redirect over to the new interface instead 271 // (which extends it). 272 SYSTEM_SERVICE_NAMES.put(android.text.ClipboardManager.class, Context.CLIPBOARD_SERVICE); 273 274 registerService(Context.CONNECTIVITY_SERVICE, ConnectivityManager.class, 275 new StaticApplicationContextServiceFetcher<ConnectivityManager>() { 276 @Override 277 public ConnectivityManager createService(Context context) throws ServiceNotFoundException { 278 IBinder b = ServiceManager.getServiceOrThrow(Context.CONNECTIVITY_SERVICE); 279 IConnectivityManager service = IConnectivityManager.Stub.asInterface(b); 280 return new ConnectivityManager(context, service); 281 }}); 282 283 registerService(Context.IPSEC_SERVICE, IpSecManager.class, 284 new CachedServiceFetcher<IpSecManager>() { 285 @Override 286 public IpSecManager createService(ContextImpl ctx) throws ServiceNotFoundException { 287 IBinder b = ServiceManager.getService(Context.IPSEC_SERVICE); 288 IIpSecService service = IIpSecService.Stub.asInterface(b); 289 return new IpSecManager(ctx, service); 290 }}); 291 292 registerService(Context.COUNTRY_DETECTOR, CountryDetector.class, 293 new StaticServiceFetcher<CountryDetector>() { 294 @Override 295 public CountryDetector createService() throws ServiceNotFoundException { 296 IBinder b = ServiceManager.getServiceOrThrow(Context.COUNTRY_DETECTOR); 297 return new CountryDetector(ICountryDetector.Stub.asInterface(b)); 298 }}); 299 300 registerService(Context.DEVICE_POLICY_SERVICE, DevicePolicyManager.class, 301 new CachedServiceFetcher<DevicePolicyManager>() { 302 @Override 303 public DevicePolicyManager createService(ContextImpl ctx) throws ServiceNotFoundException { 304 IBinder b = ServiceManager.getServiceOrThrow(Context.DEVICE_POLICY_SERVICE); 305 return new DevicePolicyManager(ctx, IDevicePolicyManager.Stub.asInterface(b)); 306 }}); 307 308 registerService(Context.DOWNLOAD_SERVICE, DownloadManager.class, 309 new CachedServiceFetcher<DownloadManager>() { 310 @Override 311 public DownloadManager createService(ContextImpl ctx) { 312 return new DownloadManager(ctx); 313 }}); 314 315 registerService(Context.BATTERY_SERVICE, BatteryManager.class, 316 new CachedServiceFetcher<BatteryManager>() { 317 @Override 318 public BatteryManager createService(ContextImpl ctx) throws ServiceNotFoundException { 319 IBatteryStats stats = IBatteryStats.Stub.asInterface( 320 ServiceManager.getServiceOrThrow(BatteryStats.SERVICE_NAME)); 321 IBatteryPropertiesRegistrar registrar = IBatteryPropertiesRegistrar.Stub 322 .asInterface(ServiceManager.getServiceOrThrow("batteryproperties")); 323 return new BatteryManager(ctx, stats, registrar); 324 }}); 325 326 registerService(Context.NFC_SERVICE, NfcManager.class, 327 new CachedServiceFetcher<NfcManager>() { 328 @Override 329 public NfcManager createService(ContextImpl ctx) { 330 return new NfcManager(ctx); 331 }}); 332 333 registerService(Context.DROPBOX_SERVICE, DropBoxManager.class, 334 new CachedServiceFetcher<DropBoxManager>() { 335 @Override 336 public DropBoxManager createService(ContextImpl ctx) throws ServiceNotFoundException { 337 IBinder b = ServiceManager.getServiceOrThrow(Context.DROPBOX_SERVICE); 338 IDropBoxManagerService service = IDropBoxManagerService.Stub.asInterface(b); 339 return new DropBoxManager(ctx, service); 340 }}); 341 342 registerService(Context.INPUT_SERVICE, InputManager.class, 343 new StaticServiceFetcher<InputManager>() { 344 @Override 345 public InputManager createService() { 346 return InputManager.getInstance(); 347 }}); 348 349 registerService(Context.DISPLAY_SERVICE, DisplayManager.class, 350 new CachedServiceFetcher<DisplayManager>() { 351 @Override 352 public DisplayManager createService(ContextImpl ctx) { 353 return new DisplayManager(ctx.getOuterContext()); 354 }}); 355 356 registerService(Context.INPUT_METHOD_SERVICE, InputMethodManager.class, 357 new StaticServiceFetcher<InputMethodManager>() { 358 @Override 359 public InputMethodManager createService() { 360 return InputMethodManager.getInstance(); 361 }}); 362 363 registerService(Context.TEXT_SERVICES_MANAGER_SERVICE, TextServicesManager.class, 364 new StaticServiceFetcher<TextServicesManager>() { 365 @Override 366 public TextServicesManager createService() { 367 return TextServicesManager.getInstance(); 368 }}); 369 370 registerService(Context.KEYGUARD_SERVICE, KeyguardManager.class, 371 new CachedServiceFetcher<KeyguardManager>() { 372 @Override 373 public KeyguardManager createService(ContextImpl ctx) throws ServiceNotFoundException { 374 return new KeyguardManager(ctx); 375 }}); 376 377 registerService(Context.LAYOUT_INFLATER_SERVICE, LayoutInflater.class, 378 new CachedServiceFetcher<LayoutInflater>() { 379 @Override 380 public LayoutInflater createService(ContextImpl ctx) { 381 return new PhoneLayoutInflater(ctx.getOuterContext()); 382 }}); 383 384 registerService(Context.LOCATION_SERVICE, LocationManager.class, 385 new CachedServiceFetcher<LocationManager>() { 386 @Override 387 public LocationManager createService(ContextImpl ctx) throws ServiceNotFoundException { 388 IBinder b = ServiceManager.getServiceOrThrow(Context.LOCATION_SERVICE); 389 return new LocationManager(ctx, ILocationManager.Stub.asInterface(b)); 390 }}); 391 392 registerService(Context.NETWORK_POLICY_SERVICE, NetworkPolicyManager.class, 393 new CachedServiceFetcher<NetworkPolicyManager>() { 394 @Override 395 public NetworkPolicyManager createService(ContextImpl ctx) throws ServiceNotFoundException { 396 return new NetworkPolicyManager(ctx, INetworkPolicyManager.Stub.asInterface( 397 ServiceManager.getServiceOrThrow(Context.NETWORK_POLICY_SERVICE))); 398 }}); 399 400 registerService(Context.NOTIFICATION_SERVICE, NotificationManager.class, 401 new CachedServiceFetcher<NotificationManager>() { 402 @Override 403 public NotificationManager createService(ContextImpl ctx) { 404 final Context outerContext = ctx.getOuterContext(); 405 return new NotificationManager( 406 new ContextThemeWrapper(outerContext, 407 Resources.selectSystemTheme(0, 408 outerContext.getApplicationInfo().targetSdkVersion, 409 com.android.internal.R.style.Theme_Dialog, 410 com.android.internal.R.style.Theme_Holo_Dialog, 411 com.android.internal.R.style.Theme_DeviceDefault_Dialog, 412 com.android.internal.R.style.Theme_DeviceDefault_Light_Dialog)), 413 ctx.mMainThread.getHandler()); 414 }}); 415 416 registerService(Context.NSD_SERVICE, NsdManager.class, 417 new CachedServiceFetcher<NsdManager>() { 418 @Override 419 public NsdManager createService(ContextImpl ctx) throws ServiceNotFoundException { 420 IBinder b = ServiceManager.getServiceOrThrow(Context.NSD_SERVICE); 421 INsdManager service = INsdManager.Stub.asInterface(b); 422 return new NsdManager(ctx.getOuterContext(), service); 423 }}); 424 425 registerService(Context.POWER_SERVICE, PowerManager.class, 426 new CachedServiceFetcher<PowerManager>() { 427 @Override 428 public PowerManager createService(ContextImpl ctx) throws ServiceNotFoundException { 429 IBinder b = ServiceManager.getServiceOrThrow(Context.POWER_SERVICE); 430 IPowerManager service = IPowerManager.Stub.asInterface(b); 431 return new PowerManager(ctx.getOuterContext(), 432 service, ctx.mMainThread.getHandler()); 433 }}); 434 435 registerService(Context.RECOVERY_SERVICE, RecoverySystem.class, 436 new CachedServiceFetcher<RecoverySystem>() { 437 @Override 438 public RecoverySystem createService(ContextImpl ctx) throws ServiceNotFoundException { 439 IBinder b = ServiceManager.getServiceOrThrow(Context.RECOVERY_SERVICE); 440 IRecoverySystem service = IRecoverySystem.Stub.asInterface(b); 441 return new RecoverySystem(service); 442 }}); 443 444 registerService(Context.SEARCH_SERVICE, SearchManager.class, 445 new CachedServiceFetcher<SearchManager>() { 446 @Override 447 public SearchManager createService(ContextImpl ctx) throws ServiceNotFoundException { 448 return new SearchManager(ctx.getOuterContext(), 449 ctx.mMainThread.getHandler()); 450 }}); 451 452 registerService(Context.SENSOR_SERVICE, SensorManager.class, 453 new CachedServiceFetcher<SensorManager>() { 454 @Override 455 public SensorManager createService(ContextImpl ctx) { 456 return new SystemSensorManager(ctx.getOuterContext(), 457 ctx.mMainThread.getHandler().getLooper()); 458 }}); 459 460 registerService(Context.STATS_MANAGER, StatsManager.class, 461 new CachedServiceFetcher<StatsManager>() { 462 @Override 463 public StatsManager createService(ContextImpl ctx) { 464 return new StatsManager(ctx.getOuterContext()); 465 }}); 466 467 registerService(Context.STATUS_BAR_SERVICE, StatusBarManager.class, 468 new CachedServiceFetcher<StatusBarManager>() { 469 @Override 470 public StatusBarManager createService(ContextImpl ctx) { 471 return new StatusBarManager(ctx.getOuterContext()); 472 }}); 473 474 registerService(Context.STORAGE_SERVICE, StorageManager.class, 475 new CachedServiceFetcher<StorageManager>() { 476 @Override 477 public StorageManager createService(ContextImpl ctx) throws ServiceNotFoundException { 478 return new StorageManager(ctx, ctx.mMainThread.getHandler().getLooper()); 479 }}); 480 481 registerService(Context.STORAGE_STATS_SERVICE, StorageStatsManager.class, 482 new CachedServiceFetcher<StorageStatsManager>() { 483 @Override 484 public StorageStatsManager createService(ContextImpl ctx) throws ServiceNotFoundException { 485 IStorageStatsManager service = IStorageStatsManager.Stub.asInterface( 486 ServiceManager.getServiceOrThrow(Context.STORAGE_STATS_SERVICE)); 487 return new StorageStatsManager(ctx, service); 488 }}); 489 490 registerService(Context.SYSTEM_UPDATE_SERVICE, SystemUpdateManager.class, 491 new CachedServiceFetcher<SystemUpdateManager>() { 492 @Override 493 public SystemUpdateManager createService(ContextImpl ctx) 494 throws ServiceNotFoundException { 495 IBinder b = ServiceManager.getServiceOrThrow( 496 Context.SYSTEM_UPDATE_SERVICE); 497 ISystemUpdateManager service = ISystemUpdateManager.Stub.asInterface(b); 498 return new SystemUpdateManager(service); 499 }}); 500 501 registerService(Context.TELEPHONY_SERVICE, TelephonyManager.class, 502 new CachedServiceFetcher<TelephonyManager>() { 503 @Override 504 public TelephonyManager createService(ContextImpl ctx) { 505 return new TelephonyManager(ctx.getOuterContext()); 506 }}); 507 508 registerService(Context.TELEPHONY_SUBSCRIPTION_SERVICE, SubscriptionManager.class, 509 new CachedServiceFetcher<SubscriptionManager>() { 510 @Override 511 public SubscriptionManager createService(ContextImpl ctx) throws ServiceNotFoundException { 512 return new SubscriptionManager(ctx.getOuterContext()); 513 }}); 514 515 registerService(Context.CARRIER_CONFIG_SERVICE, CarrierConfigManager.class, 516 new CachedServiceFetcher<CarrierConfigManager>() { 517 @Override 518 public CarrierConfigManager createService(ContextImpl ctx) { 519 return new CarrierConfigManager(); 520 }}); 521 522 registerService(Context.TELECOM_SERVICE, TelecomManager.class, 523 new CachedServiceFetcher<TelecomManager>() { 524 @Override 525 public TelecomManager createService(ContextImpl ctx) { 526 return new TelecomManager(ctx.getOuterContext()); 527 }}); 528 529 registerService(Context.EUICC_SERVICE, EuiccManager.class, 530 new CachedServiceFetcher<EuiccManager>() { 531 @Override 532 public EuiccManager createService(ContextImpl ctx) { 533 return new EuiccManager(ctx.getOuterContext()); 534 }}); 535 536 registerService(Context.EUICC_CARD_SERVICE, EuiccCardManager.class, 537 new CachedServiceFetcher<EuiccCardManager>() { 538 @Override 539 public EuiccCardManager createService(ContextImpl ctx) { 540 return new EuiccCardManager(ctx.getOuterContext()); 541 }}); 542 543 registerService(Context.UI_MODE_SERVICE, UiModeManager.class, 544 new CachedServiceFetcher<UiModeManager>() { 545 @Override 546 public UiModeManager createService(ContextImpl ctx) throws ServiceNotFoundException { 547 return new UiModeManager(); 548 }}); 549 550 registerService(Context.USB_SERVICE, UsbManager.class, 551 new CachedServiceFetcher<UsbManager>() { 552 @Override 553 public UsbManager createService(ContextImpl ctx) throws ServiceNotFoundException { 554 IBinder b = ServiceManager.getServiceOrThrow(Context.USB_SERVICE); 555 return new UsbManager(ctx, IUsbManager.Stub.asInterface(b)); 556 }}); 557 558 registerService(Context.SERIAL_SERVICE, SerialManager.class, 559 new CachedServiceFetcher<SerialManager>() { 560 @Override 561 public SerialManager createService(ContextImpl ctx) throws ServiceNotFoundException { 562 IBinder b = ServiceManager.getServiceOrThrow(Context.SERIAL_SERVICE); 563 return new SerialManager(ctx, ISerialManager.Stub.asInterface(b)); 564 }}); 565 566 registerService(Context.VIBRATOR_SERVICE, Vibrator.class, 567 new CachedServiceFetcher<Vibrator>() { 568 @Override 569 public Vibrator createService(ContextImpl ctx) { 570 return new SystemVibrator(ctx); 571 }}); 572 573 registerService(Context.WALLPAPER_SERVICE, WallpaperManager.class, 574 new CachedServiceFetcher<WallpaperManager>() { 575 @Override 576 public WallpaperManager createService(ContextImpl ctx) 577 throws ServiceNotFoundException { 578 final IBinder b; 579 if (ctx.getApplicationInfo().targetSdkVersion >= Build.VERSION_CODES.P) { 580 b = ServiceManager.getServiceOrThrow(Context.WALLPAPER_SERVICE); 581 } else { 582 b = ServiceManager.getService(Context.WALLPAPER_SERVICE); 583 } 584 IWallpaperManager service = IWallpaperManager.Stub.asInterface(b); 585 return new WallpaperManager(service, ctx.getOuterContext(), 586 ctx.mMainThread.getHandler()); 587 }}); 588 589 registerService(Context.LOWPAN_SERVICE, LowpanManager.class, 590 new CachedServiceFetcher<LowpanManager>() { 591 @Override 592 public LowpanManager createService(ContextImpl ctx) throws ServiceNotFoundException { 593 IBinder b = ServiceManager.getServiceOrThrow(Context.LOWPAN_SERVICE); 594 ILowpanManager service = ILowpanManager.Stub.asInterface(b); 595 return new LowpanManager(ctx.getOuterContext(), service, 596 ConnectivityThread.getInstanceLooper()); 597 }}); 598 599 registerService(Context.WIFI_SERVICE, WifiManager.class, 600 new CachedServiceFetcher<WifiManager>() { 601 @Override 602 public WifiManager createService(ContextImpl ctx) throws ServiceNotFoundException { 603 IBinder b = ServiceManager.getServiceOrThrow(Context.WIFI_SERVICE); 604 IWifiManager service = IWifiManager.Stub.asInterface(b); 605 return new WifiManager(ctx.getOuterContext(), service, 606 ConnectivityThread.getInstanceLooper()); 607 }}); 608 609 registerService(Context.WIFI_P2P_SERVICE, WifiP2pManager.class, 610 new StaticServiceFetcher<WifiP2pManager>() { 611 @Override 612 public WifiP2pManager createService() throws ServiceNotFoundException { 613 IBinder b = ServiceManager.getServiceOrThrow(Context.WIFI_P2P_SERVICE); 614 IWifiP2pManager service = IWifiP2pManager.Stub.asInterface(b); 615 return new WifiP2pManager(service); 616 }}); 617 618 registerService(Context.WIFI_AWARE_SERVICE, WifiAwareManager.class, 619 new CachedServiceFetcher<WifiAwareManager>() { 620 @Override 621 public WifiAwareManager createService(ContextImpl ctx) throws ServiceNotFoundException { 622 IBinder b = ServiceManager.getServiceOrThrow(Context.WIFI_AWARE_SERVICE); 623 IWifiAwareManager service = IWifiAwareManager.Stub.asInterface(b); 624 if (service == null) { 625 return null; 626 } 627 return new WifiAwareManager(ctx.getOuterContext(), service); 628 }}); 629 630 registerService(Context.WIFI_SCANNING_SERVICE, WifiScanner.class, 631 new CachedServiceFetcher<WifiScanner>() { 632 @Override 633 public WifiScanner createService(ContextImpl ctx) throws ServiceNotFoundException { 634 IBinder b = ServiceManager.getServiceOrThrow(Context.WIFI_SCANNING_SERVICE); 635 IWifiScanner service = IWifiScanner.Stub.asInterface(b); 636 return new WifiScanner(ctx.getOuterContext(), service, 637 ConnectivityThread.getInstanceLooper()); 638 }}); 639 640 registerService(Context.WIFI_RTT_SERVICE, RttManager.class, 641 new CachedServiceFetcher<RttManager>() { 642 @Override 643 public RttManager createService(ContextImpl ctx) throws ServiceNotFoundException { 644 IBinder b = ServiceManager.getServiceOrThrow(Context.WIFI_RTT_RANGING_SERVICE); 645 IWifiRttManager service = IWifiRttManager.Stub.asInterface(b); 646 return new RttManager(ctx.getOuterContext(), 647 new WifiRttManager(ctx.getOuterContext(), service)); 648 }}); 649 650 registerService(Context.WIFI_RTT_RANGING_SERVICE, WifiRttManager.class, 651 new CachedServiceFetcher<WifiRttManager>() { 652 @Override 653 public WifiRttManager createService(ContextImpl ctx) 654 throws ServiceNotFoundException { 655 IBinder b = ServiceManager.getServiceOrThrow( 656 Context.WIFI_RTT_RANGING_SERVICE); 657 IWifiRttManager service = IWifiRttManager.Stub.asInterface(b); 658 return new WifiRttManager(ctx.getOuterContext(), service); 659 }}); 660 661 registerService(Context.ETHERNET_SERVICE, EthernetManager.class, 662 new CachedServiceFetcher<EthernetManager>() { 663 @Override 664 public EthernetManager createService(ContextImpl ctx) throws ServiceNotFoundException { 665 IBinder b = ServiceManager.getServiceOrThrow(Context.ETHERNET_SERVICE); 666 IEthernetManager service = IEthernetManager.Stub.asInterface(b); 667 return new EthernetManager(ctx.getOuterContext(), service); 668 }}); 669 670 registerService(Context.WINDOW_SERVICE, WindowManager.class, 671 new CachedServiceFetcher<WindowManager>() { 672 @Override 673 public WindowManager createService(ContextImpl ctx) { 674 return new WindowManagerImpl(ctx); 675 }}); 676 677 registerService(Context.USER_SERVICE, UserManager.class, 678 new CachedServiceFetcher<UserManager>() { 679 @Override 680 public UserManager createService(ContextImpl ctx) throws ServiceNotFoundException { 681 IBinder b = ServiceManager.getServiceOrThrow(Context.USER_SERVICE); 682 IUserManager service = IUserManager.Stub.asInterface(b); 683 return new UserManager(ctx, service); 684 }}); 685 686 registerService(Context.APP_OPS_SERVICE, AppOpsManager.class, 687 new CachedServiceFetcher<AppOpsManager>() { 688 @Override 689 public AppOpsManager createService(ContextImpl ctx) throws ServiceNotFoundException { 690 IBinder b = ServiceManager.getServiceOrThrow(Context.APP_OPS_SERVICE); 691 IAppOpsService service = IAppOpsService.Stub.asInterface(b); 692 return new AppOpsManager(ctx, service); 693 }}); 694 695 registerService(Context.CAMERA_SERVICE, CameraManager.class, 696 new CachedServiceFetcher<CameraManager>() { 697 @Override 698 public CameraManager createService(ContextImpl ctx) { 699 return new CameraManager(ctx); 700 }}); 701 702 registerService(Context.LAUNCHER_APPS_SERVICE, LauncherApps.class, 703 new CachedServiceFetcher<LauncherApps>() { 704 @Override 705 public LauncherApps createService(ContextImpl ctx) { 706 return new LauncherApps(ctx); 707 }}); 708 709 registerService(Context.RESTRICTIONS_SERVICE, RestrictionsManager.class, 710 new CachedServiceFetcher<RestrictionsManager>() { 711 @Override 712 public RestrictionsManager createService(ContextImpl ctx) throws ServiceNotFoundException { 713 IBinder b = ServiceManager.getServiceOrThrow(Context.RESTRICTIONS_SERVICE); 714 IRestrictionsManager service = IRestrictionsManager.Stub.asInterface(b); 715 return new RestrictionsManager(ctx, service); 716 }}); 717 718 registerService(Context.PRINT_SERVICE, PrintManager.class, 719 new CachedServiceFetcher<PrintManager>() { 720 @Override 721 public PrintManager createService(ContextImpl ctx) throws ServiceNotFoundException { 722 IPrintManager service = null; 723 // If the feature not present, don't try to look up every time 724 if (ctx.getPackageManager().hasSystemFeature(PackageManager.FEATURE_PRINTING)) { 725 service = IPrintManager.Stub.asInterface(ServiceManager 726 .getServiceOrThrow(Context.PRINT_SERVICE)); 727 } 728 final int userId = ctx.getUserId(); 729 final int appId = UserHandle.getAppId(ctx.getApplicationInfo().uid); 730 return new PrintManager(ctx.getOuterContext(), service, userId, appId); 731 }}); 732 733 registerService(Context.COMPANION_DEVICE_SERVICE, CompanionDeviceManager.class, 734 new CachedServiceFetcher<CompanionDeviceManager>() { 735 @Override 736 public CompanionDeviceManager createService(ContextImpl ctx) 737 throws ServiceNotFoundException { 738 ICompanionDeviceManager service = null; 739 // If the feature not present, don't try to look up every time 740 if (ctx.getPackageManager().hasSystemFeature( 741 PackageManager.FEATURE_COMPANION_DEVICE_SETUP)) { 742 service = ICompanionDeviceManager.Stub.asInterface( 743 ServiceManager.getServiceOrThrow(Context.COMPANION_DEVICE_SERVICE)); 744 } 745 return new CompanionDeviceManager(service, ctx.getOuterContext()); 746 }}); 747 748 registerService(Context.CONSUMER_IR_SERVICE, ConsumerIrManager.class, 749 new CachedServiceFetcher<ConsumerIrManager>() { 750 @Override 751 public ConsumerIrManager createService(ContextImpl ctx) throws ServiceNotFoundException { 752 return new ConsumerIrManager(ctx); 753 }}); 754 755 registerService(Context.MEDIA_SESSION_SERVICE, MediaSessionManager.class, 756 new CachedServiceFetcher<MediaSessionManager>() { 757 @Override 758 public MediaSessionManager createService(ContextImpl ctx) { 759 return new MediaSessionManager(ctx); 760 }}); 761 762 registerService(Context.TRUST_SERVICE, TrustManager.class, 763 new StaticServiceFetcher<TrustManager>() { 764 @Override 765 public TrustManager createService() throws ServiceNotFoundException { 766 IBinder b = ServiceManager.getServiceOrThrow(Context.TRUST_SERVICE); 767 return new TrustManager(b); 768 }}); 769 770 registerService(Context.FINGERPRINT_SERVICE, FingerprintManager.class, 771 new CachedServiceFetcher<FingerprintManager>() { 772 @Override 773 public FingerprintManager createService(ContextImpl ctx) throws ServiceNotFoundException { 774 final IBinder binder; 775 if (ctx.getApplicationInfo().targetSdkVersion >= Build.VERSION_CODES.O) { 776 binder = ServiceManager.getServiceOrThrow(Context.FINGERPRINT_SERVICE); 777 } else { 778 binder = ServiceManager.getService(Context.FINGERPRINT_SERVICE); 779 } 780 IFingerprintService service = IFingerprintService.Stub.asInterface(binder); 781 return new FingerprintManager(ctx.getOuterContext(), service); 782 }}); 783 784 registerService(Context.TV_INPUT_SERVICE, TvInputManager.class, 785 new CachedServiceFetcher<TvInputManager>() { 786 @Override 787 public TvInputManager createService(ContextImpl ctx) throws ServiceNotFoundException { 788 IBinder iBinder = ServiceManager.getServiceOrThrow(Context.TV_INPUT_SERVICE); 789 ITvInputManager service = ITvInputManager.Stub.asInterface(iBinder); 790 return new TvInputManager(service, ctx.getUserId()); 791 }}); 792 793 registerService(Context.NETWORK_SCORE_SERVICE, NetworkScoreManager.class, 794 new CachedServiceFetcher<NetworkScoreManager>() { 795 @Override 796 public NetworkScoreManager createService(ContextImpl ctx) throws ServiceNotFoundException { 797 return new NetworkScoreManager(ctx); 798 }}); 799 800 registerService(Context.USAGE_STATS_SERVICE, UsageStatsManager.class, 801 new CachedServiceFetcher<UsageStatsManager>() { 802 @Override 803 public UsageStatsManager createService(ContextImpl ctx) throws ServiceNotFoundException { 804 IBinder iBinder = ServiceManager.getServiceOrThrow(Context.USAGE_STATS_SERVICE); 805 IUsageStatsManager service = IUsageStatsManager.Stub.asInterface(iBinder); 806 return new UsageStatsManager(ctx.getOuterContext(), service); 807 }}); 808 809 registerService(Context.NETWORK_STATS_SERVICE, NetworkStatsManager.class, 810 new CachedServiceFetcher<NetworkStatsManager>() { 811 @Override 812 public NetworkStatsManager createService(ContextImpl ctx) throws ServiceNotFoundException { 813 return new NetworkStatsManager(ctx.getOuterContext()); 814 }}); 815 816 registerService(Context.JOB_SCHEDULER_SERVICE, JobScheduler.class, 817 new StaticServiceFetcher<JobScheduler>() { 818 @Override 819 public JobScheduler createService() throws ServiceNotFoundException { 820 IBinder b = ServiceManager.getServiceOrThrow(Context.JOB_SCHEDULER_SERVICE); 821 return new JobSchedulerImpl(IJobScheduler.Stub.asInterface(b)); 822 }}); 823 824 registerService(Context.PERSISTENT_DATA_BLOCK_SERVICE, PersistentDataBlockManager.class, 825 new StaticServiceFetcher<PersistentDataBlockManager>() { 826 @Override 827 public PersistentDataBlockManager createService() throws ServiceNotFoundException { 828 IBinder b = ServiceManager.getServiceOrThrow(Context.PERSISTENT_DATA_BLOCK_SERVICE); 829 IPersistentDataBlockService persistentDataBlockService = 830 IPersistentDataBlockService.Stub.asInterface(b); 831 if (persistentDataBlockService != null) { 832 return new PersistentDataBlockManager(persistentDataBlockService); 833 } else { 834 // not supported 835 return null; 836 } 837 }}); 838 839 registerService(Context.OEM_LOCK_SERVICE, OemLockManager.class, 840 new StaticServiceFetcher<OemLockManager>() { 841 @Override 842 public OemLockManager createService() throws ServiceNotFoundException { 843 IBinder b = ServiceManager.getServiceOrThrow(Context.OEM_LOCK_SERVICE); 844 IOemLockService oemLockService = IOemLockService.Stub.asInterface(b); 845 if (oemLockService != null) { 846 return new OemLockManager(oemLockService); 847 } else { 848 // not supported 849 return null; 850 } 851 }}); 852 853 registerService(Context.MEDIA_PROJECTION_SERVICE, MediaProjectionManager.class, 854 new CachedServiceFetcher<MediaProjectionManager>() { 855 @Override 856 public MediaProjectionManager createService(ContextImpl ctx) { 857 return new MediaProjectionManager(ctx); 858 }}); 859 860 registerService(Context.APPWIDGET_SERVICE, AppWidgetManager.class, 861 new CachedServiceFetcher<AppWidgetManager>() { 862 @Override 863 public AppWidgetManager createService(ContextImpl ctx) throws ServiceNotFoundException { 864 IBinder b = ServiceManager.getServiceOrThrow(Context.APPWIDGET_SERVICE); 865 return new AppWidgetManager(ctx, IAppWidgetService.Stub.asInterface(b)); 866 }}); 867 868 registerService(Context.MIDI_SERVICE, MidiManager.class, 869 new CachedServiceFetcher<MidiManager>() { 870 @Override 871 public MidiManager createService(ContextImpl ctx) throws ServiceNotFoundException { 872 IBinder b = ServiceManager.getServiceOrThrow(Context.MIDI_SERVICE); 873 return new MidiManager(IMidiManager.Stub.asInterface(b)); 874 }}); 875 876 registerService(Context.RADIO_SERVICE, RadioManager.class, 877 new CachedServiceFetcher<RadioManager>() { 878 @Override 879 public RadioManager createService(ContextImpl ctx) throws ServiceNotFoundException { 880 return new RadioManager(ctx); 881 }}); 882 883 registerService(Context.HARDWARE_PROPERTIES_SERVICE, HardwarePropertiesManager.class, 884 new CachedServiceFetcher<HardwarePropertiesManager>() { 885 @Override 886 public HardwarePropertiesManager createService(ContextImpl ctx) throws ServiceNotFoundException { 887 IBinder b = ServiceManager.getServiceOrThrow(Context.HARDWARE_PROPERTIES_SERVICE); 888 IHardwarePropertiesManager service = 889 IHardwarePropertiesManager.Stub.asInterface(b); 890 return new HardwarePropertiesManager(ctx, service); 891 }}); 892 893 registerService(Context.SOUND_TRIGGER_SERVICE, SoundTriggerManager.class, 894 new CachedServiceFetcher<SoundTriggerManager>() { 895 @Override 896 public SoundTriggerManager createService(ContextImpl ctx) throws ServiceNotFoundException { 897 IBinder b = ServiceManager.getServiceOrThrow(Context.SOUND_TRIGGER_SERVICE); 898 return new SoundTriggerManager(ctx, ISoundTriggerService.Stub.asInterface(b)); 899 }}); 900 901 registerService(Context.SHORTCUT_SERVICE, ShortcutManager.class, 902 new CachedServiceFetcher<ShortcutManager>() { 903 @Override 904 public ShortcutManager createService(ContextImpl ctx) throws ServiceNotFoundException { 905 IBinder b = ServiceManager.getServiceOrThrow(Context.SHORTCUT_SERVICE); 906 return new ShortcutManager(ctx, IShortcutService.Stub.asInterface(b)); 907 }}); 908 909 registerService(Context.NETWORK_WATCHLIST_SERVICE, NetworkWatchlistManager.class, 910 new CachedServiceFetcher<NetworkWatchlistManager>() { 911 @Override 912 public NetworkWatchlistManager createService(ContextImpl ctx) 913 throws ServiceNotFoundException { 914 IBinder b = 915 ServiceManager.getServiceOrThrow(Context.NETWORK_WATCHLIST_SERVICE); 916 return new NetworkWatchlistManager(ctx, 917 INetworkWatchlistManager.Stub.asInterface(b)); 918 }}); 919 920 registerService(Context.SYSTEM_HEALTH_SERVICE, SystemHealthManager.class, 921 new CachedServiceFetcher<SystemHealthManager>() { 922 @Override 923 public SystemHealthManager createService(ContextImpl ctx) throws ServiceNotFoundException { 924 IBinder b = ServiceManager.getServiceOrThrow(BatteryStats.SERVICE_NAME); 925 return new SystemHealthManager(IBatteryStats.Stub.asInterface(b)); 926 }}); 927 928 registerService(Context.CONTEXTHUB_SERVICE, ContextHubManager.class, 929 new CachedServiceFetcher<ContextHubManager>() { 930 @Override 931 public ContextHubManager createService(ContextImpl ctx) throws ServiceNotFoundException { 932 return new ContextHubManager(ctx.getOuterContext(), 933 ctx.mMainThread.getHandler().getLooper()); 934 }}); 935 936 registerService(Context.INCIDENT_SERVICE, IncidentManager.class, 937 new CachedServiceFetcher<IncidentManager>() { 938 @Override 939 public IncidentManager createService(ContextImpl ctx) throws ServiceNotFoundException { 940 return new IncidentManager(ctx); 941 }}); 942 943 registerService(Context.AUTOFILL_MANAGER_SERVICE, AutofillManager.class, 944 new CachedServiceFetcher<AutofillManager>() { 945 @Override 946 public AutofillManager createService(ContextImpl ctx) throws ServiceNotFoundException { 947 // Get the services without throwing as this is an optional feature 948 IBinder b = ServiceManager.getService(Context.AUTOFILL_MANAGER_SERVICE); 949 IAutoFillManager service = IAutoFillManager.Stub.asInterface(b); 950 return new AutofillManager(ctx.getOuterContext(), service); 951 }}); 952 953 registerService(Context.VR_SERVICE, VrManager.class, new CachedServiceFetcher<VrManager>() { 954 @Override 955 public VrManager createService(ContextImpl ctx) throws ServiceNotFoundException { 956 IBinder b = ServiceManager.getServiceOrThrow(Context.VR_SERVICE); 957 return new VrManager(IVrManager.Stub.asInterface(b)); 958 } 959 }); 960 961 registerService(Context.TIME_ZONE_RULES_MANAGER_SERVICE, RulesManager.class, 962 new CachedServiceFetcher<RulesManager>() { 963 @Override 964 public RulesManager createService(ContextImpl ctx) { 965 return new RulesManager(ctx.getOuterContext()); 966 }}); 967 968 registerService(Context.CROSS_PROFILE_APPS_SERVICE, CrossProfileApps.class, 969 new CachedServiceFetcher<CrossProfileApps>() { 970 @Override 971 public CrossProfileApps createService(ContextImpl ctx) 972 throws ServiceNotFoundException { 973 IBinder b = ServiceManager.getServiceOrThrow( 974 Context.CROSS_PROFILE_APPS_SERVICE); 975 return new CrossProfileApps(ctx.getOuterContext(), 976 ICrossProfileApps.Stub.asInterface(b)); 977 } 978 }); 979 980 registerService(Context.SLICE_SERVICE, SliceManager.class, 981 new CachedServiceFetcher<SliceManager>() { 982 @Override 983 public SliceManager createService(ContextImpl ctx) 984 throws ServiceNotFoundException { 985 return new SliceManager(ctx.getOuterContext(), 986 ctx.mMainThread.getHandler()); 987 } 988 }); 989 990 registerService(Context.DEVICE_IDLE_CONTROLLER, DeviceIdleManager.class, 991 new CachedServiceFetcher<DeviceIdleManager>() { 992 @Override 993 public DeviceIdleManager createService(ContextImpl ctx) 994 throws ServiceNotFoundException { 995 IDeviceIdleController service = IDeviceIdleController.Stub.asInterface( 996 ServiceManager.getServiceOrThrow( 997 Context.DEVICE_IDLE_CONTROLLER)); 998 return new DeviceIdleManager(ctx.getOuterContext(), service); 999 }}); 1000 } 1001 1002 /** 1003 * Creates an array which is used to cache per-Context service instances. 1004 */ 1005 public static Object[] createServiceCache() { 1006 return new Object[sServiceCacheSize]; 1007 } 1008 1009 /** 1010 * Gets a system service from a given context. 1011 */ 1012 public static Object getSystemService(ContextImpl ctx, String name) { 1013 ServiceFetcher<?> fetcher = SYSTEM_SERVICE_FETCHERS.get(name); 1014 return fetcher != null ? fetcher.getService(ctx) : null; 1015 } 1016 1017 /** 1018 * Gets the name of the system-level service that is represented by the specified class. 1019 */ 1020 public static String getSystemServiceName(Class<?> serviceClass) { 1021 return SYSTEM_SERVICE_NAMES.get(serviceClass); 1022 } 1023 1024 /** 1025 * Statically registers a system service with the context. 1026 * This method must be called during static initialization only. 1027 */ 1028 private static <T> void registerService(String serviceName, Class<T> serviceClass, 1029 ServiceFetcher<T> serviceFetcher) { 1030 SYSTEM_SERVICE_NAMES.put(serviceClass, serviceName); 1031 SYSTEM_SERVICE_FETCHERS.put(serviceName, serviceFetcher); 1032 } 1033 1034 /** 1035 * Base interface for classes that fetch services. 1036 * These objects must only be created during static initialization. 1037 */ 1038 static abstract interface ServiceFetcher<T> { 1039 T getService(ContextImpl ctx); 1040 } 1041 1042 /** 1043 * Override this class when the system service constructor needs a 1044 * ContextImpl and should be cached and retained by that context. 1045 */ 1046 static abstract class CachedServiceFetcher<T> implements ServiceFetcher<T> { 1047 private final int mCacheIndex; 1048 1049 CachedServiceFetcher() { 1050 // Note this class must be instantiated only by the static initializer of the 1051 // outer class (SystemServiceRegistry), which already does the synchronization, 1052 // so bare access to sServiceCacheSize is okay here. 1053 mCacheIndex = sServiceCacheSize++; 1054 } 1055 1056 @Override 1057 @SuppressWarnings("unchecked") 1058 public final T getService(ContextImpl ctx) { 1059 final Object[] cache = ctx.mServiceCache; 1060 final int[] gates = ctx.mServiceInitializationStateArray; 1061 1062 for (;;) { 1063 boolean doInitialize = false; 1064 synchronized (cache) { 1065 // Return it if we already have a cached instance. 1066 T service = (T) cache[mCacheIndex]; 1067 if (service != null || gates[mCacheIndex] == ContextImpl.STATE_NOT_FOUND) { 1068 return service; 1069 } 1070 1071 // If we get here, there's no cached instance. 1072 1073 // Grr... if gate is STATE_READY, then this means we initialized the service 1074 // once but someone cleared it. 1075 // We start over from STATE_UNINITIALIZED. 1076 if (gates[mCacheIndex] == ContextImpl.STATE_READY) { 1077 gates[mCacheIndex] = ContextImpl.STATE_UNINITIALIZED; 1078 } 1079 1080 // It's possible for multiple threads to get here at the same time, so 1081 // use the "gate" to make sure only the first thread will call createService(). 1082 1083 // At this point, the gate must be either UNINITIALIZED or INITIALIZING. 1084 if (gates[mCacheIndex] == ContextImpl.STATE_UNINITIALIZED) { 1085 doInitialize = true; 1086 gates[mCacheIndex] = ContextImpl.STATE_INITIALIZING; 1087 } 1088 } 1089 1090 if (doInitialize) { 1091 // Only the first thread gets here. 1092 1093 T service = null; 1094 @ServiceInitializationState int newState = ContextImpl.STATE_NOT_FOUND; 1095 try { 1096 // This thread is the first one to get here. Instantiate the service 1097 // *without* the cache lock held. 1098 service = createService(ctx); 1099 newState = ContextImpl.STATE_READY; 1100 1101 } catch (ServiceNotFoundException e) { 1102 onServiceNotFound(e); 1103 1104 } finally { 1105 synchronized (cache) { 1106 cache[mCacheIndex] = service; 1107 gates[mCacheIndex] = newState; 1108 cache.notifyAll(); 1109 } 1110 } 1111 return service; 1112 } 1113 // The other threads will wait for the first thread to call notifyAll(), 1114 // and go back to the top and retry. 1115 synchronized (cache) { 1116 while (gates[mCacheIndex] < ContextImpl.STATE_READY) { 1117 try { 1118 cache.wait(); 1119 } catch (InterruptedException e) { 1120 Log.w(TAG, "getService() interrupted"); 1121 Thread.currentThread().interrupt(); 1122 return null; 1123 } 1124 } 1125 } 1126 } 1127 } 1128 1129 public abstract T createService(ContextImpl ctx) throws ServiceNotFoundException; 1130 } 1131 1132 /** 1133 * Override this class when the system service does not need a ContextImpl 1134 * and should be cached and retained process-wide. 1135 */ 1136 static abstract class StaticServiceFetcher<T> implements ServiceFetcher<T> { 1137 private T mCachedInstance; 1138 1139 @Override 1140 public final T getService(ContextImpl ctx) { 1141 synchronized (StaticServiceFetcher.this) { 1142 if (mCachedInstance == null) { 1143 try { 1144 mCachedInstance = createService(); 1145 } catch (ServiceNotFoundException e) { 1146 onServiceNotFound(e); 1147 } 1148 } 1149 return mCachedInstance; 1150 } 1151 } 1152 1153 public abstract T createService() throws ServiceNotFoundException; 1154 } 1155 1156 /** 1157 * Like StaticServiceFetcher, creates only one instance of the service per application, but when 1158 * creating the service for the first time, passes it the application context of the creating 1159 * application. 1160 * 1161 * TODO: Delete this once its only user (ConnectivityManager) is known to work well in the 1162 * case where multiple application components each have their own ConnectivityManager object. 1163 */ 1164 static abstract class StaticApplicationContextServiceFetcher<T> implements ServiceFetcher<T> { 1165 private T mCachedInstance; 1166 1167 @Override 1168 public final T getService(ContextImpl ctx) { 1169 synchronized (StaticApplicationContextServiceFetcher.this) { 1170 if (mCachedInstance == null) { 1171 Context appContext = ctx.getApplicationContext(); 1172 // If the application context is null, we're either in the system process or 1173 // it's the application context very early in app initialization. In both these 1174 // cases, the passed-in ContextImpl will not be freed, so it's safe to pass it 1175 // to the service. http://b/27532714 . 1176 try { 1177 mCachedInstance = createService(appContext != null ? appContext : ctx); 1178 } catch (ServiceNotFoundException e) { 1179 onServiceNotFound(e); 1180 } 1181 } 1182 return mCachedInstance; 1183 } 1184 } 1185 1186 public abstract T createService(Context applicationContext) throws ServiceNotFoundException; 1187 } 1188 1189 public static void onServiceNotFound(ServiceNotFoundException e) { 1190 // We're mostly interested in tracking down long-lived core system 1191 // components that might stumble if they obtain bad references; just 1192 // emit a tidy log message for normal apps 1193 if (android.os.Process.myUid() < android.os.Process.FIRST_APPLICATION_UID) { 1194 Log.wtf(TAG, e.getMessage(), e); 1195 } else { 1196 Log.w(TAG, e.getMessage()); 1197 } 1198 } 1199} 1200