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      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 
     17 package android.support.car;
     18 
     19 import android.content.Context;
     20 import android.os.Looper;
     21 
     22 /**
     23  * CarServiceLoader is the abstraction for loading different types of car service.
     24  * @hide
     25  */
     26 public abstract class CarServiceLoader {
     27 
     28     private final Context mContext;
     29     private final ServiceConnectionListener mListener;
     30     private final Looper mLooper;
     31 
     32     public CarServiceLoader(Context context, ServiceConnectionListener listener, Looper looper) {
     33         mContext = context;
     34         mListener = listener;
     35         mLooper = looper;
     36     }
     37 
     38     public abstract void connect() throws IllegalStateException;
     39     public abstract void disconnect();
     40     public abstract boolean isConnectedToCar();
     41     @Car.ConnectionType
     42     public abstract int getCarConnectionType() throws CarNotConnectedException;
     43     public abstract void registerCarConnectionListener(CarConnectionListener listener)
     44             throws CarNotConnectedException;
     45     public abstract void unregisterCarConnectionListener(CarConnectionListener listener);
     46     public abstract Object getCarManager(String serviceName)
     47             throws CarNotSupportedException, CarNotConnectedException;
     48 
     49     protected Context getContext() {
     50         return mContext;
     51     }
     52 
     53     protected ServiceConnectionListener getConnectionListener() {
     54         return mListener;
     55     }
     56 
     57     protected Looper getLooper() {
     58         return mLooper;
     59     }
     60 }
     61