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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 com.android.bluetoothmidiservice;
     18 
     19 import android.app.Service;
     20 import android.bluetooth.BluetoothDevice;
     21 import android.content.Intent;
     22 import android.media.midi.IBluetoothMidiService;
     23 import android.media.midi.MidiManager;
     24 import android.os.IBinder;
     25 import android.util.Log;
     26 
     27 import java.util.HashMap;
     28 
     29 public class BluetoothMidiService extends Service {
     30     private static final String TAG = "BluetoothMidiService";
     31 
     32     // BluetoothMidiDevices keyed by BluetoothDevice
     33     private final HashMap<BluetoothDevice,BluetoothMidiDevice> mDeviceServerMap
     34             = new HashMap<BluetoothDevice,BluetoothMidiDevice>();
     35 
     36     @Override
     37     public IBinder onBind(Intent intent) {
     38         // Return the interface
     39         return mBinder;
     40     }
     41 
     42 
     43     private final IBluetoothMidiService.Stub mBinder = new IBluetoothMidiService.Stub() {
     44 
     45         public IBinder addBluetoothDevice(BluetoothDevice bluetoothDevice) {
     46             BluetoothMidiDevice device;
     47             if (bluetoothDevice == null) {
     48                 Log.e(TAG, "no BluetoothDevice in addBluetoothDevice()");
     49                 return null;
     50             }
     51             synchronized (mDeviceServerMap) {
     52                 device = mDeviceServerMap.get(bluetoothDevice);
     53                 if (device == null) {
     54                     device = new BluetoothMidiDevice(BluetoothMidiService.this,
     55                             bluetoothDevice, BluetoothMidiService.this);
     56                     mDeviceServerMap.put(bluetoothDevice, device);
     57                 }
     58             }
     59             return device.getBinder();
     60         }
     61 
     62     };
     63 
     64     void deviceClosed(BluetoothDevice device) {
     65         synchronized (mDeviceServerMap) {
     66             mDeviceServerMap.remove(device);
     67         }
     68     }
     69 }
     70