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
|
/*
* Copyright (C) 2010 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.server;
import android.os.ParcelUuid;
import android.util.Log;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
class BluetoothDeviceProperties {
private static final String TAG = "BluetoothDeviceProperties";
private final HashMap<String, Map<String, String>> mPropertiesMap;
private final BluetoothService mService;
BluetoothDeviceProperties(BluetoothService service) {
mPropertiesMap = new HashMap<String, Map<String, String>>();
mService = service;
}
Map<String, String> addProperties(String address, String[] properties) {
/*
* We get a DeviceFound signal every time RSSI changes or name changes.
* Don't create a new Map object every time.
*/
Map<String, String> propertyValues;
synchronized(mPropertiesMap) {
propertyValues = mPropertiesMap.get(address);
if (propertyValues == null) {
propertyValues = new HashMap<String, String>();
}
for (int i = 0; i < properties.length; i++) {
String name = properties[i];
String newValue = null;
int len;
if (name == null) {
Log.e(TAG, "Error: Remote Device Property at index "
+ i + " is null");
continue;
}
if (name.equals("UUIDs") || name.equals("Nodes")) {
StringBuilder str = new StringBuilder();
len = Integer.valueOf(properties[++i]);
for (int j = 0; j < len; j++) {
str.append(properties[++i]);
str.append(",");
}
if (len > 0) {
newValue = str.toString();
}
} else {
newValue = properties[++i];
}
propertyValues.put(name, newValue);
}
mPropertiesMap.put(address, propertyValues);
}
// We have added a new remote device or updated its properties.
// Also update the serviceChannel cache.
mService.updateDeviceServiceChannelCache(address);
return propertyValues;
}
void setProperty(String address, String name, String value) {
synchronized(mPropertiesMap) {
Map <String, String> propVal = mPropertiesMap.get(address);
if (propVal != null) {
propVal.put(name, value);
mPropertiesMap.put(address, propVal);
} else {
Log.e(TAG, "setRemoteDeviceProperty for a device not in cache:" + address);
}
}
}
boolean isInCache(String address) {
synchronized (mPropertiesMap) {
return (mPropertiesMap.get(address) != null);
}
}
boolean isEmpty() {
synchronized (mPropertiesMap) {
return mPropertiesMap.isEmpty();
}
}
Set<String> keySet() {
synchronized (mPropertiesMap) {
return mPropertiesMap.keySet();
}
}
String getProperty(String address, String property) {
synchronized(mPropertiesMap) {
Map<String, String> properties = mPropertiesMap.get(address);
if (properties != null) {
return properties.get(property);
} else {
// Query for remote device properties, again.
// We will need to reload the cache when we switch Bluetooth on / off
// or if we crash.
properties = updateCache(address);
if (properties != null) {
return properties.get(property);
}
}
}
Log.e(TAG, "getRemoteDeviceProperty: " + property + " not present: " + address);
return null;
}
Map<String, String> updateCache(String address) {
String[] propValues = mService.getRemoteDeviceProperties(address);
if (propValues != null) {
return addProperties(address, propValues);
}
return null;
}
}
|
