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 package android.car.content.pm; 17 18 import android.annotation.SystemApi; 19 import android.app.Service; 20 import android.car.Car; 21 import android.content.Intent; 22 import android.os.Handler; 23 import android.os.IBinder; 24 import android.os.RemoteException; 25 import android.util.Log; 26 27 /** 28 * Service to be implemented by Service which wants to control app blocking policy. 29 * App should require android.car.permission.CONTROL_APP_BLOCKING to launch Service 30 * implementation. Additionally the APK should have the permission to be launched by Car Service. 31 * The implementing service should declare {@link #SERVICE_INTERFACE} in its intent filter as 32 * action. 33 * @hide 34 */ 35 @SystemApi 36 public abstract class CarAppBlockingPolicyService extends Service { 37 38 private static final String TAG = CarAppBlockingPolicyService.class.getSimpleName(); 39 40 public static final String SERVICE_INTERFACE = 41 "android.car.content.pm.CarAppBlockingPolicyService"; 42 43 private final ICarAppBlockingPolicyImpl mBinder = new ICarAppBlockingPolicyImpl(); 44 private Handler mHandler; 45 46 /** 47 * Return the app blocking policy. This is called from binder thread. 48 * @return 49 */ getAppBlockingPolicy()50 protected abstract CarAppBlockingPolicy getAppBlockingPolicy(); 51 52 @Override onStartCommand(Intent intent, int flags, int startId)53 public int onStartCommand(Intent intent, int flags, int startId) { 54 return START_STICKY; 55 } 56 57 @Override onBind(Intent intent)58 public IBinder onBind(Intent intent) { 59 Log.i(TAG, "onBind"); 60 return mBinder; 61 } 62 63 @Override onUnbind(Intent intent)64 public boolean onUnbind(Intent intent) { 65 Log.i(TAG, "onUnbind"); 66 stopSelf(); 67 return false; 68 } 69 70 71 private class ICarAppBlockingPolicyImpl extends ICarAppBlockingPolicy.Stub { 72 73 @Override setAppBlockingPolicySetter(ICarAppBlockingPolicySetter setter)74 public void setAppBlockingPolicySetter(ICarAppBlockingPolicySetter setter) { 75 Log.i(TAG, "setAppBlockingPolicySetter will set policy"); 76 CarAppBlockingPolicy policy = CarAppBlockingPolicyService.this.getAppBlockingPolicy(); 77 try { 78 setter.setAppBlockingPolicy(policy); 79 } catch (RemoteException e) { 80 Car.handleRemoteExceptionFromCarService(CarAppBlockingPolicyService.this, e); 81 } 82 } 83 } 84 } 85