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
onBind(Intent intent)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 
deviceClosed(BluetoothDevice device)64     void deviceClosed(BluetoothDevice device) {
65         synchronized (mDeviceServerMap) {
66             mDeviceServerMap.remove(device);
67         }
68     }
69 }
70