Add Context.getSystemService(Class<?>).

Added an overload of getSystemService() that takes a class instead of a
service name to eliminate the extra cast and provide more type safety.

Cleaned up docs.

Removed the default constructor of BatteryManager which should not have
existed.

Change-Id: I9da46b20641fc83ecd3342560e5b94cb721f289c

1 files changed, 776 insertions, 0 deletions

diff --git a/core/java/android/app/SystemServiceRegistry.java b/core/java/android/app/SystemServiceRegistry.java
new file mode 100644
index 0000000..993f416
--- /dev/null
+++ b/core/java/android/app/SystemServiceRegistry.java
@@ -0,0 +1,776 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.app;
+
+import com.android.internal.app.IAppOpsService;
+import com.android.internal.appwidget.IAppWidgetService;
+import com.android.internal.os.IDropBoxManagerService;
+
+import android.accounts.AccountManager;
+import android.accounts.IAccountManager;
+import android.app.admin.DevicePolicyManager;
+import android.app.job.IJobScheduler;
+import android.app.job.JobScheduler;
+import android.app.trust.TrustManager;
+import android.app.usage.IUsageStatsManager;
+import android.app.usage.UsageStatsManager;
+import android.appwidget.AppWidgetManager;
+import android.bluetooth.BluetoothManager;
+import android.content.ClipboardManager;
+import android.content.Context;
+import android.content.IRestrictionsManager;
+import android.content.RestrictionsManager;
+import android.content.pm.ILauncherApps;
+import android.content.pm.LauncherApps;
+import android.content.res.Resources;
+import android.hardware.ConsumerIrManager;
+import android.hardware.ISerialManager;
+import android.hardware.SensorManager;
+import android.hardware.SerialManager;
+import android.hardware.SystemSensorManager;
+import android.hardware.camera2.CameraManager;
+import android.hardware.display.DisplayManager;
+import android.hardware.hdmi.HdmiControlManager;
+import android.hardware.hdmi.IHdmiControlService;
+import android.hardware.input.InputManager;
+import android.hardware.usb.IUsbManager;
+import android.hardware.usb.UsbManager;
+import android.location.CountryDetector;
+import android.location.ICountryDetector;
+import android.location.ILocationManager;
+import android.location.LocationManager;
+import android.media.AudioManager;
+import android.media.MediaRouter;
+import android.media.midi.IMidiManager;
+import android.media.midi.MidiManager;
+import android.media.projection.MediaProjectionManager;
+import android.media.session.MediaSessionManager;
+import android.media.tv.ITvInputManager;
+import android.media.tv.TvInputManager;
+import android.net.ConnectivityManager;
+import android.net.EthernetManager;
+import android.net.IConnectivityManager;
+import android.net.IEthernetManager;
+import android.net.INetworkPolicyManager;
+import android.net.NetworkPolicyManager;
+import android.net.NetworkScoreManager;
+import android.net.nsd.INsdManager;
+import android.net.nsd.NsdManager;
+import android.net.wifi.IRttManager;
+import android.net.wifi.IWifiManager;
+import android.net.wifi.IWifiScanner;
+import android.net.wifi.RttManager;
+import android.net.wifi.WifiManager;
+import android.net.wifi.WifiScanner;
+import android.net.wifi.p2p.IWifiP2pManager;
+import android.net.wifi.p2p.WifiP2pManager;
+import android.net.wifi.passpoint.IWifiPasspointManager;
+import android.net.wifi.passpoint.WifiPasspointManager;
+import android.nfc.NfcManager;
+import android.os.BatteryManager;
+import android.os.DropBoxManager;
+import android.os.IBinder;
+import android.os.IPowerManager;
+import android.os.IUserManager;
+import android.os.PowerManager;
+import android.os.Process;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import android.os.SystemVibrator;
+import android.os.UserHandle;
+import android.os.UserManager;
+import android.os.Vibrator;
+import android.os.storage.StorageManager;
+import android.print.IPrintManager;
+import android.print.PrintManager;
+import android.service.fingerprint.FingerprintManager;
+import android.service.fingerprint.IFingerprintService;
+import android.service.persistentdata.IPersistentDataBlockService;
+import android.service.persistentdata.PersistentDataBlockManager;
+import android.telecom.TelecomManager;
+import android.telephony.SubscriptionManager;
+import android.telephony.TelephonyManager;
+import android.util.Log;
+import android.view.ContextThemeWrapper;
+import android.view.LayoutInflater;
+import android.view.PhoneLayoutInflater;
+import android.view.WindowManager;
+import android.view.WindowManagerImpl;
+import android.view.accessibility.AccessibilityManager;
+import android.view.accessibility.CaptioningManager;
+import android.view.inputmethod.InputMethodManager;
+import android.view.textservice.TextServicesManager;
+
+import java.util.HashMap;
+
+/**
+ * Manages all of the system services that can be returned by {@link Context#getSystemService}.
+ * Used by {@link ContextImpl}.
+ */
+final class SystemServiceRegistry {
+    private final static String TAG = "SystemServiceRegistry";
+
+    // Service registry information.
+    // This information is never changed once static initialization has completed.
+    private static final HashMap<Class<?>, String> SYSTEM_SERVICE_NAMES =
+            new HashMap<Class<?>, String>();
+    private static final HashMap<String, ServiceFetcher<?>> SYSTEM_SERVICE_FETCHERS =
+            new HashMap<String, ServiceFetcher<?>>();
+    private static int sServiceCacheSize;
+
+    // Not instantiable.
+    private SystemServiceRegistry() { }
+
+    static {
+        registerService(Context.ACCESSIBILITY_SERVICE, AccessibilityManager.class,
+                new CachedServiceFetcher<AccessibilityManager>() {
+            @Override
+            public AccessibilityManager createService(ContextImpl ctx) {
+                return AccessibilityManager.getInstance(ctx);
+            }});
+
+        registerService(Context.CAPTIONING_SERVICE, CaptioningManager.class,
+                new CachedServiceFetcher<CaptioningManager>() {
+            @Override
+            public CaptioningManager createService(ContextImpl ctx) {
+                return new CaptioningManager(ctx);
+            }});
+
+        registerService(Context.ACCOUNT_SERVICE, AccountManager.class,
+                new CachedServiceFetcher<AccountManager>() {
+            @Override
+            public AccountManager createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.ACCOUNT_SERVICE);
+                IAccountManager service = IAccountManager.Stub.asInterface(b);
+                return new AccountManager(ctx, service);
+            }});
+
+        registerService(Context.ACTIVITY_SERVICE, ActivityManager.class,
+                new CachedServiceFetcher<ActivityManager>() {
+            @Override
+            public ActivityManager createService(ContextImpl ctx) {
+                return new ActivityManager(ctx.getOuterContext(), ctx.mMainThread.getHandler());
+            }});
+
+        registerService(Context.ALARM_SERVICE, AlarmManager.class,
+                new CachedServiceFetcher<AlarmManager>() {
+            @Override
+            public AlarmManager createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.ALARM_SERVICE);
+                IAlarmManager service = IAlarmManager.Stub.asInterface(b);
+                return new AlarmManager(service, ctx);
+            }});
+
+        registerService(Context.AUDIO_SERVICE, AudioManager.class,
+                new CachedServiceFetcher<AudioManager>() {
+            @Override
+            public AudioManager createService(ContextImpl ctx) {
+                return new AudioManager(ctx);
+            }});
+
+        registerService(Context.MEDIA_ROUTER_SERVICE, MediaRouter.class,
+                new CachedServiceFetcher<MediaRouter>() {
+            @Override
+            public MediaRouter createService(ContextImpl ctx) {
+                return new MediaRouter(ctx);
+            }});
+
+        registerService(Context.BLUETOOTH_SERVICE, BluetoothManager.class,
+                new CachedServiceFetcher<BluetoothManager>() {
+            @Override
+            public BluetoothManager createService(ContextImpl ctx) {
+                return new BluetoothManager(ctx);
+            }});
+
+        registerService(Context.HDMI_CONTROL_SERVICE, HdmiControlManager.class,
+                new StaticServiceFetcher<HdmiControlManager>() {
+            @Override
+            public HdmiControlManager createService() {
+                IBinder b = ServiceManager.getService(Context.HDMI_CONTROL_SERVICE);
+                return new HdmiControlManager(IHdmiControlService.Stub.asInterface(b));
+            }});
+
+        registerService(Context.CLIPBOARD_SERVICE, ClipboardManager.class,
+                new CachedServiceFetcher<ClipboardManager>() {
+            @Override
+            public ClipboardManager createService(ContextImpl ctx) {
+                return new ClipboardManager(ctx.getOuterContext(),
+                        ctx.mMainThread.getHandler());
+            }});
+
+        // The clipboard service moved to a new package.  If someone asks for the old
+        // interface by class then we want to redirect over to the new interface instead
+        // (which extends it).
+        SYSTEM_SERVICE_NAMES.put(android.text.ClipboardManager.class, Context.CLIPBOARD_SERVICE);
+
+        registerService(Context.CONNECTIVITY_SERVICE, ConnectivityManager.class,
+                new StaticServiceFetcher<ConnectivityManager>() {
+            @Override
+            public ConnectivityManager createService() {
+                IBinder b = ServiceManager.getService(Context.CONNECTIVITY_SERVICE);
+                return new ConnectivityManager(IConnectivityManager.Stub.asInterface(b));
+            }});
+
+        registerService(Context.COUNTRY_DETECTOR, CountryDetector.class,
+                new StaticServiceFetcher<CountryDetector>() {
+            @Override
+            public CountryDetector createService() {
+                IBinder b = ServiceManager.getService(Context.COUNTRY_DETECTOR);
+                return new CountryDetector(ICountryDetector.Stub.asInterface(b));
+            }});
+
+        registerService(Context.DEVICE_POLICY_SERVICE, DevicePolicyManager.class,
+                new CachedServiceFetcher<DevicePolicyManager>() {
+            @Override
+            public DevicePolicyManager createService(ContextImpl ctx) {
+                return DevicePolicyManager.create(ctx, ctx.mMainThread.getHandler());
+            }});
+
+        registerService(Context.DOWNLOAD_SERVICE, DownloadManager.class,
+                new CachedServiceFetcher<DownloadManager>() {
+            @Override
+            public DownloadManager createService(ContextImpl ctx) {
+                return new DownloadManager(ctx.getContentResolver(), ctx.getPackageName());
+            }});
+
+        registerService(Context.BATTERY_SERVICE, BatteryManager.class,
+                new StaticServiceFetcher<BatteryManager>() {
+            @Override
+            public BatteryManager createService() {
+                return new BatteryManager();
+            }});
+
+        registerService(Context.NFC_SERVICE, NfcManager.class,
+                new CachedServiceFetcher<NfcManager>() {
+            @Override
+            public NfcManager createService(ContextImpl ctx) {
+                return new NfcManager(ctx);
+            }});
+
+        registerService(Context.DROPBOX_SERVICE, DropBoxManager.class,
+                new StaticServiceFetcher<DropBoxManager>() {
+            @Override
+            public DropBoxManager createService() {
+                IBinder b = ServiceManager.getService(Context.DROPBOX_SERVICE);
+                IDropBoxManagerService service = IDropBoxManagerService.Stub.asInterface(b);
+                if (service == null) {
+                    // Don't return a DropBoxManager that will NPE upon use.
+                    // This also avoids caching a broken DropBoxManager in
+                    // getDropBoxManager during early boot, before the
+                    // DROPBOX_SERVICE is registered.
+                    return null;
+                }
+                return new DropBoxManager(service);
+            }});
+
+        registerService(Context.INPUT_SERVICE, InputManager.class,
+                new StaticServiceFetcher<InputManager>() {
+            @Override
+            public InputManager createService() {
+                return InputManager.getInstance();
+            }});
+
+        registerService(Context.DISPLAY_SERVICE, DisplayManager.class,
+                new CachedServiceFetcher<DisplayManager>() {
+            @Override
+            public DisplayManager createService(ContextImpl ctx) {
+                return new DisplayManager(ctx.getOuterContext());
+            }});
+
+        registerService(Context.INPUT_METHOD_SERVICE, InputMethodManager.class,
+                new StaticServiceFetcher<InputMethodManager>() {
+            @Override
+            public InputMethodManager createService() {
+                return InputMethodManager.getInstance();
+            }});
+
+        registerService(Context.TEXT_SERVICES_MANAGER_SERVICE, TextServicesManager.class,
+                new StaticServiceFetcher<TextServicesManager>() {
+            @Override
+            public TextServicesManager createService() {
+                return TextServicesManager.getInstance();
+            }});
+
+        registerService(Context.KEYGUARD_SERVICE, KeyguardManager.class,
+                new StaticServiceFetcher<KeyguardManager>() {
+            @Override
+            public KeyguardManager createService() {
+                return new KeyguardManager();
+            }});
+
+        registerService(Context.LAYOUT_INFLATER_SERVICE, LayoutInflater.class,
+                new CachedServiceFetcher<LayoutInflater>() {
+            @Override
+            public LayoutInflater createService(ContextImpl ctx) {
+                return new PhoneLayoutInflater(ctx.getOuterContext());
+            }});
+
+        registerService(Context.LOCATION_SERVICE, LocationManager.class,
+                new CachedServiceFetcher<LocationManager>() {
+            @Override
+            public LocationManager createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.LOCATION_SERVICE);
+                return new LocationManager(ctx, ILocationManager.Stub.asInterface(b));
+            }});
+
+        registerService(Context.NETWORK_POLICY_SERVICE, NetworkPolicyManager.class,
+                new StaticServiceFetcher<NetworkPolicyManager>() {
+            @Override
+            public NetworkPolicyManager createService() {
+                return new NetworkPolicyManager(INetworkPolicyManager.Stub.asInterface(
+                        ServiceManager.getService(Context.NETWORK_POLICY_SERVICE)));
+            }});
+
+        registerService(Context.NOTIFICATION_SERVICE, NotificationManager.class,
+                new CachedServiceFetcher<NotificationManager>() {
+            @Override
+            public NotificationManager createService(ContextImpl ctx) {
+                final Context outerContext = ctx.getOuterContext();
+                return new NotificationManager(
+                    new ContextThemeWrapper(outerContext,
+                            Resources.selectSystemTheme(0,
+                                    outerContext.getApplicationInfo().targetSdkVersion,
+                                    com.android.internal.R.style.Theme_Dialog,
+                                    com.android.internal.R.style.Theme_Holo_Dialog,
+                                    com.android.internal.R.style.Theme_DeviceDefault_Dialog,
+                                    com.android.internal.R.style.Theme_DeviceDefault_Light_Dialog)),
+                    ctx.mMainThread.getHandler());
+            }});
+
+        registerService(Context.NSD_SERVICE, NsdManager.class,
+                new CachedServiceFetcher<NsdManager>() {
+            @Override
+            public NsdManager createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.NSD_SERVICE);
+                INsdManager service = INsdManager.Stub.asInterface(b);
+                return new NsdManager(ctx.getOuterContext(), service);
+            }});
+
+        registerService(Context.POWER_SERVICE, PowerManager.class,
+                new CachedServiceFetcher<PowerManager>() {
+            @Override
+            public PowerManager createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.POWER_SERVICE);
+                IPowerManager service = IPowerManager.Stub.asInterface(b);
+                if (service == null) {
+                    Log.wtf(TAG, "Failed to get power manager service.");
+                }
+                return new PowerManager(ctx.getOuterContext(),
+                        service, ctx.mMainThread.getHandler());
+            }});
+
+        registerService(Context.SEARCH_SERVICE, SearchManager.class,
+                new CachedServiceFetcher<SearchManager>() {
+            @Override
+            public SearchManager createService(ContextImpl ctx) {
+                return new SearchManager(ctx.getOuterContext(),
+                        ctx.mMainThread.getHandler());
+            }});
+
+        registerService(Context.SENSOR_SERVICE, SensorManager.class,
+                new CachedServiceFetcher<SensorManager>() {
+            @Override
+            public SensorManager createService(ContextImpl ctx) {
+                return new SystemSensorManager(ctx.getOuterContext(),
+                  ctx.mMainThread.getHandler().getLooper());
+            }});
+
+        registerService(Context.STATUS_BAR_SERVICE, StatusBarManager.class,
+                new CachedServiceFetcher<StatusBarManager>() {
+            @Override
+            public StatusBarManager createService(ContextImpl ctx) {
+                return new StatusBarManager(ctx.getOuterContext());
+            }});
+
+        registerService(Context.STORAGE_SERVICE, StorageManager.class,
+                new CachedServiceFetcher<StorageManager>() {
+            @Override
+            public StorageManager createService(ContextImpl ctx) {
+                try {
+                    return new StorageManager(
+                            ctx.getContentResolver(), ctx.mMainThread.getHandler().getLooper());
+                } catch (RemoteException rex) {
+                    Log.e(TAG, "Failed to create StorageManager", rex);
+                    return null;
+                }
+            }});
+
+        registerService(Context.TELEPHONY_SERVICE, TelephonyManager.class,
+                new CachedServiceFetcher<TelephonyManager>() {
+            @Override
+            public TelephonyManager createService(ContextImpl ctx) {
+                return new TelephonyManager(ctx.getOuterContext());
+            }});
+
+        registerService(Context.TELEPHONY_SUBSCRIPTION_SERVICE, SubscriptionManager.class,
+                new CachedServiceFetcher<SubscriptionManager>() {
+            @Override
+            public SubscriptionManager createService(ContextImpl ctx) {
+                return new SubscriptionManager(ctx.getOuterContext());
+            }});
+
+        registerService(Context.TELECOM_SERVICE, TelecomManager.class,
+                new CachedServiceFetcher<TelecomManager>() {
+            @Override
+            public TelecomManager createService(ContextImpl ctx) {
+                return new TelecomManager(ctx.getOuterContext());
+            }});
+
+        registerService(Context.UI_MODE_SERVICE, UiModeManager.class,
+                new CachedServiceFetcher<UiModeManager>() {
+            @Override
+            public UiModeManager createService(ContextImpl ctx) {
+                return new UiModeManager();
+            }});
+
+        registerService(Context.USB_SERVICE, UsbManager.class,
+                new CachedServiceFetcher<UsbManager>() {
+            @Override
+            public UsbManager createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.USB_SERVICE);
+                return new UsbManager(ctx, IUsbManager.Stub.asInterface(b));
+            }});
+
+        registerService(Context.SERIAL_SERVICE, SerialManager.class,
+                new CachedServiceFetcher<SerialManager>() {
+            @Override
+            public SerialManager createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.SERIAL_SERVICE);
+                return new SerialManager(ctx, ISerialManager.Stub.asInterface(b));
+            }});
+
+        registerService(Context.VIBRATOR_SERVICE, Vibrator.class,
+                new CachedServiceFetcher<Vibrator>() {
+            @Override
+            public Vibrator createService(ContextImpl ctx) {
+                return new SystemVibrator(ctx);
+            }});
+
+        registerService(Context.WALLPAPER_SERVICE, WallpaperManager.class,
+                new CachedServiceFetcher<WallpaperManager>() {
+            @Override
+            public WallpaperManager createService(ContextImpl ctx) {
+                return new WallpaperManager(ctx.getOuterContext(),
+                        ctx.mMainThread.getHandler());
+            }});
+
+        registerService(Context.WIFI_SERVICE, WifiManager.class,
+                new CachedServiceFetcher<WifiManager>() {
+            @Override
+            public WifiManager createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.WIFI_SERVICE);
+                IWifiManager service = IWifiManager.Stub.asInterface(b);
+                return new WifiManager(ctx.getOuterContext(), service);
+            }});
+
+        registerService(Context.WIFI_PASSPOINT_SERVICE, WifiPasspointManager.class,
+                new CachedServiceFetcher<WifiPasspointManager>() {
+            @Override
+            public WifiPasspointManager createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.WIFI_PASSPOINT_SERVICE);
+                IWifiPasspointManager service = IWifiPasspointManager.Stub.asInterface(b);
+                return new WifiPasspointManager(ctx.getOuterContext(), service);
+            }});
+
+        registerService(Context.WIFI_P2P_SERVICE, WifiP2pManager.class,
+                new StaticServiceFetcher<WifiP2pManager>() {
+            @Override
+            public WifiP2pManager createService() {
+                IBinder b = ServiceManager.getService(Context.WIFI_P2P_SERVICE);
+                IWifiP2pManager service = IWifiP2pManager.Stub.asInterface(b);
+                return new WifiP2pManager(service);
+            }});
+
+        registerService(Context.WIFI_SCANNING_SERVICE, WifiScanner.class,
+                new CachedServiceFetcher<WifiScanner>() {
+            @Override
+            public WifiScanner createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.WIFI_SCANNING_SERVICE);
+                IWifiScanner service = IWifiScanner.Stub.asInterface(b);
+                return new WifiScanner(ctx.getOuterContext(), service);
+            }});
+
+        registerService(Context.WIFI_RTT_SERVICE, RttManager.class,
+                new CachedServiceFetcher<RttManager>() {
+            @Override
+            public RttManager createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.WIFI_RTT_SERVICE);
+                IRttManager service = IRttManager.Stub.asInterface(b);
+                return new RttManager(ctx.getOuterContext(), service);
+            }});
+
+        registerService(Context.ETHERNET_SERVICE, EthernetManager.class,
+                new CachedServiceFetcher<EthernetManager>() {
+            @Override
+            public EthernetManager createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.ETHERNET_SERVICE);
+                IEthernetManager service = IEthernetManager.Stub.asInterface(b);
+                return new EthernetManager(ctx.getOuterContext(), service);
+            }});
+
+        registerService(Context.WINDOW_SERVICE, WindowManager.class,
+                new CachedServiceFetcher<WindowManager>() {
+            @Override
+            public WindowManager createService(ContextImpl ctx) {
+                return new WindowManagerImpl(ctx.getDisplay());
+            }});
+
+        registerService(Context.USER_SERVICE, UserManager.class,
+                new CachedServiceFetcher<UserManager>() {
+            @Override
+            public UserManager createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.USER_SERVICE);
+                IUserManager service = IUserManager.Stub.asInterface(b);
+                return new UserManager(ctx, service);
+            }});
+
+        registerService(Context.APP_OPS_SERVICE, AppOpsManager.class,
+                new CachedServiceFetcher<AppOpsManager>() {
+            @Override
+            public AppOpsManager createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.APP_OPS_SERVICE);
+                IAppOpsService service = IAppOpsService.Stub.asInterface(b);
+                return new AppOpsManager(ctx, service);
+            }});
+
+        registerService(Context.CAMERA_SERVICE, CameraManager.class,
+                new CachedServiceFetcher<CameraManager>() {
+            @Override
+            public CameraManager createService(ContextImpl ctx) {
+                return new CameraManager(ctx);
+            }});
+
+        registerService(Context.LAUNCHER_APPS_SERVICE, LauncherApps.class,
+                new CachedServiceFetcher<LauncherApps>() {
+            @Override
+            public LauncherApps createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.LAUNCHER_APPS_SERVICE);
+                ILauncherApps service = ILauncherApps.Stub.asInterface(b);
+                return new LauncherApps(ctx, service);
+            }});
+
+        registerService(Context.RESTRICTIONS_SERVICE, RestrictionsManager.class,
+                new CachedServiceFetcher<RestrictionsManager>() {
+            @Override
+            public RestrictionsManager createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.RESTRICTIONS_SERVICE);
+                IRestrictionsManager service = IRestrictionsManager.Stub.asInterface(b);
+                return new RestrictionsManager(ctx, service);
+            }});
+
+        registerService(Context.PRINT_SERVICE, PrintManager.class,
+                new CachedServiceFetcher<PrintManager>() {
+            @Override
+            public PrintManager createService(ContextImpl ctx) {
+                IBinder iBinder = ServiceManager.getService(Context.PRINT_SERVICE);
+                IPrintManager service = IPrintManager.Stub.asInterface(iBinder);
+                return new PrintManager(ctx.getOuterContext(), service, UserHandle.myUserId(),
+                        UserHandle.getAppId(Process.myUid()));
+            }});
+
+        registerService(Context.CONSUMER_IR_SERVICE, ConsumerIrManager.class,
+                new CachedServiceFetcher<ConsumerIrManager>() {
+            @Override
+            public ConsumerIrManager createService(ContextImpl ctx) {
+                return new ConsumerIrManager(ctx);
+            }});
+
+        registerService(Context.MEDIA_SESSION_SERVICE, MediaSessionManager.class,
+                new CachedServiceFetcher<MediaSessionManager>() {
+            @Override
+            public MediaSessionManager createService(ContextImpl ctx) {
+                return new MediaSessionManager(ctx);
+            }});
+
+        registerService(Context.TRUST_SERVICE, TrustManager.class,
+                new StaticServiceFetcher<TrustManager>() {
+            @Override
+            public TrustManager createService() {
+                IBinder b = ServiceManager.getService(Context.TRUST_SERVICE);
+                return new TrustManager(b);
+            }});
+
+        registerService(Context.FINGERPRINT_SERVICE, FingerprintManager.class,
+                new CachedServiceFetcher<FingerprintManager>() {
+            @Override
+            public FingerprintManager createService(ContextImpl ctx) {
+                IBinder binder = ServiceManager.getService(Context.FINGERPRINT_SERVICE);
+                IFingerprintService service = IFingerprintService.Stub.asInterface(binder);
+                return new FingerprintManager(ctx.getOuterContext(), service);
+            }});
+
+        registerService(Context.TV_INPUT_SERVICE, TvInputManager.class,
+                new StaticServiceFetcher<TvInputManager>() {
+            @Override
+            public TvInputManager createService() {
+                IBinder iBinder = ServiceManager.getService(Context.TV_INPUT_SERVICE);
+                ITvInputManager service = ITvInputManager.Stub.asInterface(iBinder);
+                return new TvInputManager(service, UserHandle.myUserId());
+            }});
+
+        registerService(Context.NETWORK_SCORE_SERVICE, NetworkScoreManager.class,
+                new CachedServiceFetcher<NetworkScoreManager>() {
+            @Override
+            public NetworkScoreManager createService(ContextImpl ctx) {
+                return new NetworkScoreManager(ctx);
+            }});
+
+        registerService(Context.USAGE_STATS_SERVICE, UsageStatsManager.class,
+                new CachedServiceFetcher<UsageStatsManager>() {
+            @Override
+            public UsageStatsManager createService(ContextImpl ctx) {
+                IBinder iBinder = ServiceManager.getService(Context.USAGE_STATS_SERVICE);
+                IUsageStatsManager service = IUsageStatsManager.Stub.asInterface(iBinder);
+                return new UsageStatsManager(ctx.getOuterContext(), service);
+            }});
+
+        registerService(Context.JOB_SCHEDULER_SERVICE, JobScheduler.class,
+                new StaticServiceFetcher<JobScheduler>() {
+            @Override
+            public JobScheduler createService() {
+                IBinder b = ServiceManager.getService(Context.JOB_SCHEDULER_SERVICE);
+                return new JobSchedulerImpl(IJobScheduler.Stub.asInterface(b));
+            }});
+
+        registerService(Context.PERSISTENT_DATA_BLOCK_SERVICE, PersistentDataBlockManager.class,
+                new StaticServiceFetcher<PersistentDataBlockManager>() {
+            @Override
+            public PersistentDataBlockManager createService() {
+                IBinder b = ServiceManager.getService(Context.PERSISTENT_DATA_BLOCK_SERVICE);
+                IPersistentDataBlockService persistentDataBlockService =
+                        IPersistentDataBlockService.Stub.asInterface(b);
+                if (persistentDataBlockService != null) {
+                    return new PersistentDataBlockManager(persistentDataBlockService);
+                } else {
+                    // not supported
+                    return null;
+                }
+            }});
+
+        registerService(Context.MEDIA_PROJECTION_SERVICE, MediaProjectionManager.class,
+                new CachedServiceFetcher<MediaProjectionManager>() {
+            @Override
+            public MediaProjectionManager createService(ContextImpl ctx) {
+                return new MediaProjectionManager(ctx);
+            }});
+
+        registerService(Context.APPWIDGET_SERVICE, AppWidgetManager.class,
+                new CachedServiceFetcher<AppWidgetManager>() {
+            @Override
+            public AppWidgetManager createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.APPWIDGET_SERVICE);
+                return new AppWidgetManager(ctx, IAppWidgetService.Stub.asInterface(b));
+            }});
+
+        registerService(Context.MIDI_SERVICE, MidiManager.class,
+                new CachedServiceFetcher<MidiManager>() {
+            @Override
+            public MidiManager createService(ContextImpl ctx) {
+                IBinder b = ServiceManager.getService(Context.MIDI_SERVICE);
+                return new MidiManager(ctx, IMidiManager.Stub.asInterface(b));
+            }});
+    }
+
+    /**
+     * Creates an array which is used to cache per-Context service instances.
+     */
+    public static Object[] createServiceCache() {
+        return new Object[sServiceCacheSize];
+    }
+
+    /**
+     * Gets a system service from a given context.
+     */
+    public static Object getSystemService(ContextImpl ctx, String name) {
+        ServiceFetcher<?> fetcher = SYSTEM_SERVICE_FETCHERS.get(name);
+        return fetcher != null ? fetcher.getService(ctx) : null;
+    }
+
+    /**
+     * Gets the name of the system-level service that is represented by the specified class. 
+     */
+    public static String getSystemServiceName(Class<?> serviceClass) {
+        return SYSTEM_SERVICE_NAMES.get(serviceClass);
+    }
+
+    /**
+     * Statically registers a system service with the context.
+     * This method must be called during static initialization only.
+     */
+    private static <T> void registerService(String serviceName, Class<T> serviceClass,
+            ServiceFetcher<T> serviceFetcher) {
+        SYSTEM_SERVICE_NAMES.put(serviceClass, serviceName);
+        SYSTEM_SERVICE_FETCHERS.put(serviceName, serviceFetcher);
+    }
+
+    /**
+     * Base interface for classes that fetch services.
+     * These objects must only be created during static initialization.
+     */
+    static abstract interface ServiceFetcher<T> {
+        T getService(ContextImpl ctx);
+    }
+
+    /**
+     * Override this class when the system service constructor needs a
+     * ContextImpl and should be cached and retained by that context.
+     */
+    static abstract class CachedServiceFetcher<T> implements ServiceFetcher<T> {
+        private final int mCacheIndex;
+
+        public CachedServiceFetcher() {
+            mCacheIndex = sServiceCacheSize++;
+        }
+
+        @Override
+        @SuppressWarnings("unchecked")
+        public final T getService(ContextImpl ctx) {
+            final Object[] cache = ctx.mServiceCache;
+            synchronized (cache) {
+                // Fetch or create the service.
+                Object service = cache[mCacheIndex];
+                if (service == null) {
+                    service = createService(ctx);
+                    cache[mCacheIndex] = service;
+                }
+                return (T)service;
+            }
+        }
+
+        public abstract T createService(ContextImpl ctx);
+    }
+
+    /**
+     * Override this class when the system service does not need a ContextImpl
+     * and should be cached and retained process-wide.
+     */
+    static abstract class StaticServiceFetcher<T> implements ServiceFetcher<T> {
+        private T mCachedInstance;
+
+        @Override
+        public final T getService(ContextImpl unused) {
+            synchronized (StaticServiceFetcher.this) {
+                if (mCachedInstance == null) {
+                    mCachedInstance = createService();
+                }
+                return mCachedInstance;
+            }
+        }
+
+        public abstract T createService();
+    }
+}