1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
/*
* Copyright (C) 2012 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 com.android.bluetooth.btservice;
import java.util.HashMap;
import com.android.bluetooth.Utils;
import android.app.Service;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothProfile;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.IBinder;
import android.util.Log;
public abstract class ProfileService extends Service {
private static final boolean DBG = false;
//For Debugging only
private static HashMap<String, Integer> sReferenceCount = new HashMap<String,Integer>();
public static final String BLUETOOTH_ADMIN_PERM =
android.Manifest.permission.BLUETOOTH_ADMIN;
public static final String BLUETOOTH_PERM = android.Manifest.permission.BLUETOOTH;
public static final String BLUETOOTH_PRIVILEGED =
android.Manifest.permission.BLUETOOTH_PRIVILEGED;
public static interface IProfileServiceBinder extends IBinder {
public boolean cleanup();
}
//Profile services will not be automatically restarted.
//They must be explicitly restarted by AdapterService
private static final int PROFILE_SERVICE_MODE=Service.START_NOT_STICKY;
protected String mName;
protected BluetoothAdapter mAdapter;
protected IProfileServiceBinder mBinder;
protected boolean mStartError=false;
private boolean mCleaningUp = false;
protected String getName() {
return getClass().getSimpleName();
}
protected boolean isAvailable() {
return !mStartError && !mCleaningUp;
}
protected abstract IProfileServiceBinder initBinder();
protected abstract boolean start();
protected abstract boolean stop();
protected boolean cleanup() {
return true;
}
protected ProfileService() {
mName = getName();
if (DBG) {
synchronized (sReferenceCount) {
Integer refCount = sReferenceCount.get(mName);
if (refCount==null) {
refCount = 1;
} else {
refCount = refCount+1;
}
sReferenceCount.put(mName, refCount);
if (DBG) log("REFCOUNT: CREATED. INSTANCE_COUNT=" +refCount);
}
}
}
protected void finalize() {
if (DBG) {
synchronized (sReferenceCount) {
Integer refCount = sReferenceCount.get(mName);
if (refCount!=null) {
refCount = refCount-1;
} else {
refCount = 0;
}
sReferenceCount.put(mName, refCount);
log("REFCOUNT: FINALIZED. INSTANCE_COUNT=" +refCount);
}
}
}
@Override
public void onCreate() {
if (DBG) log("onCreate");
super.onCreate();
mAdapter = BluetoothAdapter.getDefaultAdapter();
mBinder = initBinder();
}
public int onStartCommand(Intent intent, int flags, int startId) {
if (DBG) log("onStartCommand()");
if (mStartError || mAdapter == null) {
Log.w(mName, "Stopping profile service: device does not have BT");
doStop(intent);
return PROFILE_SERVICE_MODE;
}
if (checkCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM)!=PackageManager.PERMISSION_GRANTED) {
Log.e(mName, "Permission denied!");
return PROFILE_SERVICE_MODE;
}
if (intent == null) {
Log.d(mName, "Restarting profile service...");
return PROFILE_SERVICE_MODE;
} else {
String action = intent.getStringExtra(AdapterService.EXTRA_ACTION);
if (AdapterService.ACTION_SERVICE_STATE_CHANGED.equals(action)) {
int state= intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.ERROR);
if(state==BluetoothAdapter.STATE_OFF) {
Log.d(mName, "Received stop request...Stopping profile...");
doStop(intent);
} else if (state == BluetoothAdapter.STATE_ON) {
Log.d(mName, "Received start request. Starting profile...");
doStart(intent);
}
}
}
return PROFILE_SERVICE_MODE;
}
public IBinder onBind(Intent intent) {
if (DBG) log("onBind");
return mBinder;
}
public boolean onUnbind(Intent intent) {
if (DBG) log("onUnbind");
return super.onUnbind(intent);
}
@Override
public void onDestroy() {
if (DBG) log("Destroying service.");
if (mCleaningUp) {
if (DBG) log("Cleanup already started... Skipping cleanup()...");
} else {
if (DBG) log("cleanup()");
mCleaningUp = true;
cleanup();
if (mBinder != null) {
mBinder.cleanup();
mBinder= null;
}
}
super.onDestroy();
mAdapter = null;
}
private void doStart(Intent intent) {
//Start service
if (mAdapter == null) {
Log.e(mName, "Error starting profile. BluetoothAdapter is null");
} else {
if (DBG) log("start()");
mStartError = !start();
if (!mStartError) {
notifyProfileServiceStateChanged(BluetoothAdapter.STATE_ON);
} else {
Log.e(mName, "Error starting profile. BluetoothAdapter is null");
}
}
}
private void doStop(Intent intent) {
if (stop()) {
if (DBG) log("stop()");
notifyProfileServiceStateChanged(BluetoothAdapter.STATE_OFF);
stopSelf();
} else {
Log.e(mName, "Unable to stop profile");
}
}
protected void notifyProfileServiceStateChanged(int state) {
//Notify adapter service
AdapterService sAdapter = AdapterService.getAdapterService();
if (sAdapter!= null) {
sAdapter.onProfileServiceStateChanged(getClass().getName(), state);
}
}
public void notifyProfileConnectionStateChanged(BluetoothDevice device,
int profileId, int newState, int prevState) {
AdapterService svc = AdapterService.getAdapterService();
if (svc != null) {
svc.onProfileConnectionStateChanged(device, profileId, newState, prevState);
}
}
protected BluetoothDevice getDevice(byte[] address) {
return mAdapter.getRemoteDevice(Utils.getAddressStringFromByte(address));
}
protected void log(String msg) {
Log.d(mName, msg);
}
}
|
