1 /*
2  * Copyright (C) 2024 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.ondevicepersonalization.services.inference;
18 
19 import static com.android.ondevicepersonalization.services.process.SharedIsolatedProcessRunner.TRUSTED_PARTNER_APPS_SIP;
20 
21 import android.adservices.ondevicepersonalization.aidl.IIsolatedModelService;
22 import android.content.Context;
23 
24 import com.android.federatedcompute.internal.util.AbstractServiceBinder;
25 import com.android.modules.utils.build.SdkLevel;
26 
27 /**
28  * Provides {@link IsolatedModelService}.
29  */
30 public class IsolatedModelServiceProvider {
31     public static final String ISOLATED_MODEL_SERVICE_NAME =
32             "com.android.ondevicepersonalization.services.inference.IsolatedModelService";
33     private AbstractServiceBinder<IIsolatedModelService> mModelService;
34 
35 
36     /**
37      * Returns {@link IIsolatedModelService}.
38      */
getModelService(Context context)39     public IIsolatedModelService getModelService(Context context) {
40         // Inference service should always run in the trusted SIP.
41         String instanceName = SdkLevel.isAtLeastU() ? TRUSTED_PARTNER_APPS_SIP : null;
42         int bindFlag = SdkLevel.isAtLeastU()
43                 ? Context.BIND_SHARED_ISOLATED_PROCESS
44                 : Context.BIND_AUTO_CREATE;
45         mModelService =
46                 AbstractServiceBinder.getIsolatedServiceBinderByServiceName(
47                         context,
48                         ISOLATED_MODEL_SERVICE_NAME,
49                         context.getPackageName(),
50                         instanceName, bindFlag, IIsolatedModelService.Stub::asInterface);
51         return mModelService.getService(Runnable::run);
52     }
53 
54     /**
55      * Unbind {@link IsolatedModelService}.
56      */
unBindFromModelService()57     public void unBindFromModelService() {
58         mModelService.unbindFromService();
59     }
60 }
61