1/*
2 * Copyright (C) 2010 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
17package android.server;
18
19import android.content.Context;
20import android.util.Log;
21
22import java.util.HashMap;
23import java.util.Map;
24
25class BluetoothAdapterProperties {
26
27    private static final String TAG = "BluetoothAdapterProperties";
28
29    private final Map<String, String> mPropertiesMap;
30    private final Context mContext;
31    private final BluetoothService mService;
32
33    BluetoothAdapterProperties(Context context, BluetoothService service) {
34        mPropertiesMap = new HashMap<String, String>();
35        mContext = context;
36        mService = service;
37    }
38
39    synchronized String getProperty(String name) {
40        if (mPropertiesMap.isEmpty()) {
41            getAllProperties();
42        }
43        return mPropertiesMap.get(name);
44    }
45
46    String getObjectPath() {
47        return getProperty("ObjectPath");
48    }
49
50    synchronized void clear() {
51        mPropertiesMap.clear();
52    }
53
54    synchronized boolean isEmpty() {
55        return mPropertiesMap.isEmpty();
56    }
57
58    synchronized void setProperty(String name, String value) {
59        mPropertiesMap.put(name, value);
60    }
61
62    synchronized void getAllProperties() {
63        mContext.enforceCallingOrSelfPermission(
64                BluetoothService.BLUETOOTH_PERM,
65                "Need BLUETOOTH permission");
66        mPropertiesMap.clear();
67
68        String properties[] = (String[]) mService
69                .getAdapterPropertiesNative();
70        // The String Array consists of key-value pairs.
71        if (properties == null) {
72            Log.e(TAG, "*Error*: GetAdapterProperties returned NULL");
73            return;
74        }
75
76        for (int i = 0; i < properties.length; i++) {
77            String name = properties[i];
78            String newValue = null;
79            if (name == null) {
80                Log.e(TAG, "Error:Adapter Property at index " + i + " is null");
81                continue;
82            }
83            if (name.equals("Devices") || name.equals("UUIDs")) {
84                StringBuilder str = new StringBuilder();
85                int len = Integer.valueOf(properties[++i]);
86                for (int j = 0; j < len; j++) {
87                    str.append(properties[++i]);
88                    str.append(",");
89                }
90                if (len > 0) {
91                    newValue = str.toString();
92                }
93            } else {
94                newValue = properties[++i];
95            }
96            mPropertiesMap.put(name, newValue);
97        }
98
99        // Add adapter object path property.
100        String adapterPath = mService.getAdapterPathNative();
101        if (adapterPath != null) {
102            mPropertiesMap.put("ObjectPath", adapterPath + "/dev_");
103        }
104    }
105}
106