1 /* 2 * Copyright (C) 2016 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 android.externalservice.service; 18 19 import android.app.Service; 20 import android.content.ComponentName; 21 import android.content.Context; 22 import android.content.Intent; 23 import android.content.ServiceConnection; 24 import android.os.Handler; 25 import android.os.IBinder; 26 import android.os.Message; 27 import android.os.Messenger; 28 import android.os.Process; 29 import android.os.RemoteException; 30 import android.util.Log; 31 32 import java.util.ArrayList; 33 34 import android.externalservice.common.ServiceMessages; 35 36 public class ServiceCreator extends Service { 37 private static final String TAG = "ExternalServiceTest.ServiceCreator"; 38 39 private final ArrayList<CreatorConnection> mConnections = new ArrayList<>(); 40 41 private final Handler mHandler = new BaseService.BaseHandler(this) { 42 @Override 43 public void handleMessage(Message msg) { 44 Log.d(TAG, "Received message: " + msg); 45 switch (msg.what) { 46 case ServiceMessages.MSG_CREATE_EXTERNAL_SERVICE: 47 final Context context = ServiceCreator.this; 48 final String pkgName = context.getPackageName(); 49 Intent intent = new Intent(); 50 51 String serviceName; 52 boolean useZygote = msg.arg1 == 1; 53 if (useZygote) { 54 serviceName = ".ExternalServiceWithZygote"; 55 } else { 56 serviceName = ".ExternalService"; 57 } 58 intent.setComponent(new ComponentName(pkgName, pkgName+serviceName)); 59 CreatorConnection conn = new CreatorConnection(msg.replyTo); 60 boolean result = context.bindService(intent, conn, 61 Context.BIND_AUTO_CREATE | Context.BIND_EXTERNAL_SERVICE); 62 if (result) { 63 mConnections.add(conn); 64 } else { 65 Message reply = Message.obtain(); 66 reply.what = ServiceMessages.MSG_CREATE_EXTERNAL_SERVICE_RESPONSE; 67 try { 68 msg.replyTo.send(reply); 69 } catch (RemoteException e) { 70 Log.e(TAG, "Failed to send MSG_CREATE_EXTERNAL_SERVICE_RESPONSE", e); 71 } 72 } 73 } 74 super.handleMessage(msg); 75 } 76 }; 77 78 private final Messenger mMessenger = new Messenger(mHandler); 79 80 @Override onBind(Intent intent)81 public IBinder onBind(Intent intent) { 82 Log.d(TAG, "onBind " + intent); 83 return mMessenger.getBinder(); 84 } 85 86 @Override onDestroy()87 public void onDestroy() { 88 for (final CreatorConnection conn : mConnections) { 89 unbindService(conn); 90 } 91 super.onDestroy(); 92 } 93 94 private class CreatorConnection implements ServiceConnection { 95 private IBinder mService = null; 96 private Messenger mReplyTo = null; 97 CreatorConnection(Messenger replyTo)98 public CreatorConnection(Messenger replyTo) { 99 mReplyTo = replyTo; 100 } 101 102 @Override onServiceConnected(ComponentName name, IBinder service)103 public void onServiceConnected(ComponentName name, IBinder service) { 104 Log.d(TAG, "onServiceConnected " + name); 105 Message msg = 106 Message.obtain(null, ServiceMessages.MSG_CREATE_EXTERNAL_SERVICE_RESPONSE); 107 msg.obj = new Messenger(service); 108 try { 109 mReplyTo.send(msg); 110 } catch (RemoteException e) { 111 Log.e(TAG, "Failed to send MSG_CREATE_EXTERNAL_SERVICE_RESPONSE", e); 112 } 113 mReplyTo = null; 114 } 115 116 @Override onServiceDisconnected(ComponentName name)117 public void onServiceDisconnected(ComponentName name) { 118 Log.d(TAG, "onServiceDisconnected " + name); 119 mService = null; 120 } 121 } 122 } 123