| /* |
| * Copyright (C) 2018 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 com.android.internal.telephony.ims; |
| |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.ServiceConnection; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.util.Log; |
| |
| import com.android.ims.internal.IImsFeatureStatusCallback; |
| import com.android.ims.internal.IImsService; |
| |
| /** |
| * A compat layer for communicating with older devices that still used the ServiceManager to get |
| * the ImsService. |
| */ |
| |
| public class ImsServiceControllerStaticCompat extends ImsServiceControllerCompat { |
| |
| private static final String TAG = "ImsSCStaticCompat"; |
| |
| private static final String IMS_SERVICE_NAME = "ims"; |
| |
| private class ImsDeathRecipient implements IBinder.DeathRecipient { |
| |
| private ComponentName mComponentName; |
| private ServiceConnection mServiceConnection; |
| |
| ImsDeathRecipient(ComponentName name, ServiceConnection conn) { |
| mComponentName = name; |
| mServiceConnection = conn; |
| } |
| |
| @Override |
| public void binderDied() { |
| Log.e(TAG, "ImsService(" + mComponentName + ") died. Restarting..."); |
| // This is hacky... ImsServiceController uses the traditional service binding procedure, |
| // so we have to emulate it when using a persistent service. |
| mServiceConnection.onBindingDied(mComponentName); |
| } |
| } |
| |
| private IImsService mImsServiceCompat = null; |
| private ImsDeathRecipient mImsDeathRecipient = null; |
| |
| public ImsServiceControllerStaticCompat(Context context, ComponentName componentName, |
| ImsServiceController.ImsServiceControllerCallbacks callbacks) { |
| super(context, componentName, callbacks); |
| } |
| |
| @Override |
| public boolean startBindToService(Intent intent, ImsServiceConnection connection, int flags) { |
| IBinder binder = ServiceManager.checkService(IMS_SERVICE_NAME); |
| |
| if (binder == null) { |
| return false; |
| } |
| // This is a little hacky, but we are going to call the onServiceConnected to "pretend" like |
| // bindService has completed here, which will pass the binder to setServiceController and |
| // set up all supporting structures. |
| ComponentName name = new ComponentName(mContext, ImsServiceControllerStaticCompat.class); |
| connection.onServiceConnected(name, binder); |
| try { |
| mImsDeathRecipient = new ImsDeathRecipient(name, connection); |
| binder.linkToDeath(mImsDeathRecipient, 0); |
| } catch (RemoteException e) { |
| // The binder connection is already dead.. signal to the ImsServiceController to retry. |
| mImsDeathRecipient.binderDied(); |
| mImsDeathRecipient = null; |
| } |
| return true; |
| } |
| |
| @Override |
| protected void setServiceController(IBinder serviceController) { |
| if (serviceController == null) { |
| // The service controller has been set to null, meaning it has been unbound or died. |
| // Unlink if needed. |
| if (mImsServiceCompat != null) { |
| mImsServiceCompat.asBinder().unlinkToDeath(mImsDeathRecipient, 0); |
| } |
| mImsDeathRecipient = null; |
| } |
| mImsServiceCompat = IImsService.Stub.asInterface(serviceController); |
| } |
| |
| @Override |
| // used for add/remove features and cleanup in ImsServiceController. |
| protected boolean isServiceControllerAvailable() { |
| return mImsServiceCompat != null; |
| } |
| |
| @Override |
| protected MmTelInterfaceAdapter getInterface(int slotId, IImsFeatureStatusCallback c) { |
| if (mImsServiceCompat == null) { |
| Log.w(TAG, "getInterface: IImsService returned null."); |
| return null; |
| } |
| return new ImsServiceInterfaceAdapter(slotId, mImsServiceCompat.asBinder()); |
| } |
| } |