car-support-lib/src/android/support/car/CarServiceLoader.java

/*
 * Copyright (C) 2015 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 android.support.car;

import android.content.Context;
import android.os.Looper;

/**
 * CarServiceLoader is the abstraction for loading different types of car service.
 * @hide
 */
public abstract class CarServiceLoader {

    private final Context mContext;
    private final ServiceConnectionListener mListener;
    private final Looper mLooper;

    public CarServiceLoader(Context context, ServiceConnectionListener listener, Looper looper) {
        mContext = context;
        mListener = listener;
        mLooper = looper;
    }

    public abstract void connect() throws IllegalStateException;
    public abstract void disconnect();
    public abstract boolean isConnectedToCar();
    @Car.ConnectionType
    public abstract int getCarConnectionType() throws CarNotConnectedException;
    public abstract void registerCarConnectionListener(CarConnectionListener listener)
            throws CarNotConnectedException;
    public abstract void unregisterCarConnectionListener(CarConnectionListener listener);
    public abstract Object getCarManager(String serviceName)
            throws CarNotSupportedException, CarNotConnectedException;

    protected Context getContext() {
        return mContext;
    }

    protected ServiceConnectionListener getConnectionListener() {
        return mListener;
    }

    protected Looper getLooper() {
        return mLooper;
    }
}