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