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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 package com.android.tv.testing.testinput;
     17 
     18 import android.content.ComponentName;
     19 import android.content.ServiceConnection;
     20 import android.os.IBinder;
     21 import android.os.RemoteException;
     22 import android.os.SystemClock;
     23 import android.util.Log;
     24 import com.android.tv.testing.data.ChannelInfo;
     25 
     26 /**
     27  * Connection for controlling the Test TV Input Service.
     28  *
     29  * <p>Wrapped methods for calling {@link ITestInputControl} that waits for a binding and rethrows
     30  * {@link RemoteException} as {@link RuntimeException } are also included.
     31  */
     32 public class TestInputControlConnection implements ServiceConnection {
     33     private static final String TAG = "TestInputControlConn";
     34     private static final int BOUND_CHECK_INTERVAL_MS = 10;
     35 
     36     private ITestInputControl mControl;
     37 
     38     @Override
     39     public void onServiceConnected(ComponentName name, IBinder service) {
     40         mControl = ITestInputControl.Stub.asInterface(service);
     41     }
     42 
     43     @Override
     44     public void onServiceDisconnected(ComponentName name) {
     45         Log.w(TAG, "TestInputControl service disconnected unexpectedly.");
     46         mControl = null;
     47     }
     48 
     49     /** Is the service currently connected. */
     50     public boolean isBound() {
     51         return mControl != null;
     52     }
     53 
     54     /**
     55      * Update the state of the channel.
     56      *
     57      * @param channel the channel to update.
     58      * @param data the new state for the channel.
     59      */
     60     public void updateChannelState(ChannelInfo channel, ChannelStateData data) {
     61         waitUntilBound();
     62         try {
     63             mControl.updateChannelState(channel.originalNetworkId, data);
     64         } catch (RemoteException e) {
     65             throw new RuntimeException(e);
     66         }
     67     }
     68 
     69     /** Sleep until {@link #isBound()} is true; */
     70     public void waitUntilBound() {
     71         while (!isBound()) {
     72             SystemClock.sleep(BOUND_CHECK_INTERVAL_MS);
     73         }
     74     }
     75 }
     76