BluetoothUuid.java revision df7627db715a7a2e7f646f02a07caf2347bb90b8 
1/*
2 * Copyright (C) 2009 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.bluetooth;
18
19import android.os.ParcelUuid;
20
21import java.util.Arrays;
22import java.util.HashSet;
23
24/**
25* Static helper methods and constants to decode the ParcelUuid of remote devices.
26*  @hide
27*/
28public final class BluetoothUuid {
29
30    /* See Bluetooth Assigned Numbers document - SDP section, to get the values of UUIDs
31     * for the various services.
32     *
33     * The following 128 bit values are calculated as:
34     *  uuid * 2^96 + BASE_UUID
35     */
36    public static final ParcelUuid AudioSink =
37            ParcelUuid.fromString("0000110B-0000-1000-8000-00805F9B34FB");
38    public static final ParcelUuid AudioSource =
39            ParcelUuid.fromString("0000110A-0000-1000-8000-00805F9B34FB");
40    public static final ParcelUuid AdvAudioDist =
41            ParcelUuid.fromString("0000110D-0000-1000-8000-00805F9B34FB");
42    public static final ParcelUuid HSP =
43            ParcelUuid.fromString("00001108-0000-1000-8000-00805F9B34FB");
44    public static final ParcelUuid Handsfree =
45            ParcelUuid.fromString("0000111E-0000-1000-8000-00805F9B34FB");
46    public static final ParcelUuid AvrcpController =
47            ParcelUuid.fromString("0000110E-0000-1000-8000-00805F9B34FB");
48    public static final ParcelUuid AvrcpTarget =
49            ParcelUuid.fromString("0000110C-0000-1000-8000-00805F9B34FB");
50    public static final ParcelUuid ObexObjectPush =
51            ParcelUuid.fromString("00001105-0000-1000-8000-00805f9b34fb");
52    public static final ParcelUuid Hid =
53            ParcelUuid.fromString("00001124-0000-1000-8000-00805f9b34fb");
54
55    public static final ParcelUuid[] RESERVED_UUIDS = {
56        AudioSink, AudioSource, AdvAudioDist, HSP, Handsfree, AvrcpController, AvrcpTarget,
57        ObexObjectPush};
58
59    public static boolean isAudioSource(ParcelUuid uuid) {
60        return uuid.equals(AudioSource);
61    }
62
63    public static boolean isAudioSink(ParcelUuid uuid) {
64        return uuid.equals(AudioSink);
65    }
66
67    public static boolean isAdvAudioDist(ParcelUuid uuid) {
68        return uuid.equals(AdvAudioDist);
69    }
70
71    public static boolean isHandsfree(ParcelUuid uuid) {
72        return uuid.equals(Handsfree);
73    }
74
75    public static boolean isHeadset(ParcelUuid uuid) {
76        return uuid.equals(HSP);
77    }
78
79    public static boolean isAvrcpController(ParcelUuid uuid) {
80        return uuid.equals(AvrcpController);
81    }
82
83    public static boolean isAvrcpTarget(ParcelUuid uuid) {
84        return uuid.equals(AvrcpTarget);
85    }
86
87    public static boolean isInputDevice(ParcelUuid uuid) {
88        return uuid.equals(Hid);
89    }
90
91    /**
92     * Returns true if ParcelUuid is present in uuidArray
93     *
94     * @param uuidArray - Array of ParcelUuids
95     * @param uuid
96     */
97    public static boolean isUuidPresent(ParcelUuid[] uuidArray, ParcelUuid uuid) {
98        if ((uuidArray == null || uuidArray.length == 0) && uuid == null)
99            return true;
100
101        if (uuidArray == null)
102            return false;
103
104        for (ParcelUuid element: uuidArray) {
105            if (element.equals(uuid)) return true;
106        }
107        return false;
108    }
109
110    /**
111     * Returns true if there any common ParcelUuids in uuidA and uuidB.
112     *
113     * @param uuidA - List of ParcelUuids
114     * @param uuidB - List of ParcelUuids
115     *
116     */
117    public static boolean containsAnyUuid(ParcelUuid[] uuidA, ParcelUuid[] uuidB) {
118        if (uuidA == null && uuidB == null) return true;
119
120        if (uuidA == null) {
121            return uuidB.length == 0 ? true : false;
122        }
123
124        if (uuidB == null) {
125            return uuidA.length == 0 ? true : false;
126        }
127
128        HashSet<ParcelUuid> uuidSet = new HashSet<ParcelUuid> (Arrays.asList(uuidA));
129        for (ParcelUuid uuid: uuidB) {
130            if (uuidSet.contains(uuid)) return true;
131        }
132        return false;
133    }
134
135    /**
136     * Returns true if all the ParcelUuids in ParcelUuidB are present in
137     * ParcelUuidA
138     *
139     * @param uuidA - Array of ParcelUuidsA
140     * @param uuidB - Array of ParcelUuidsB
141     *
142     */
143    public static boolean containsAllUuids(ParcelUuid[] uuidA, ParcelUuid[] uuidB) {
144        if (uuidA == null && uuidB == null) return true;
145
146        if (uuidA == null) {
147            return uuidB.length == 0 ? true : false;
148        }
149
150        if (uuidB == null) return true;
151
152        HashSet<ParcelUuid> uuidSet = new HashSet<ParcelUuid> (Arrays.asList(uuidA));
153        for (ParcelUuid uuid: uuidB) {
154            if (!uuidSet.contains(uuid)) return false;
155        }
156        return true;
157    }
158
159}
160