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 17 package android.bluetooth; 18 19 import android.os.ParcelUuid; 20 21 import java.util.Arrays; 22 import java.util.HashSet; 23 24 /** 25 * Static helper methods and constants to decode the ParcelUuid of remote devices. 26 * @hide 27 */ 28 public 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 53 public static final ParcelUuid[] RESERVED_UUIDS = { 54 AudioSink, AudioSource, AdvAudioDist, HSP, Handsfree, AvrcpController, AvrcpTarget, 55 ObexObjectPush}; 56 isAudioSource(ParcelUuid uuid)57 public static boolean isAudioSource(ParcelUuid uuid) { 58 return uuid.equals(AudioSource); 59 } 60 isAudioSink(ParcelUuid uuid)61 public static boolean isAudioSink(ParcelUuid uuid) { 62 return uuid.equals(AudioSink); 63 } 64 isAdvAudioDist(ParcelUuid uuid)65 public static boolean isAdvAudioDist(ParcelUuid uuid) { 66 return uuid.equals(AdvAudioDist); 67 } 68 isHandsfree(ParcelUuid uuid)69 public static boolean isHandsfree(ParcelUuid uuid) { 70 return uuid.equals(Handsfree); 71 } 72 isHeadset(ParcelUuid uuid)73 public static boolean isHeadset(ParcelUuid uuid) { 74 return uuid.equals(HSP); 75 } 76 isAvrcpController(ParcelUuid uuid)77 public static boolean isAvrcpController(ParcelUuid uuid) { 78 return uuid.equals(AvrcpController); 79 } 80 isAvrcpTarget(ParcelUuid uuid)81 public static boolean isAvrcpTarget(ParcelUuid uuid) { 82 return uuid.equals(AvrcpTarget); 83 } 84 85 /** 86 * Returns true if ParcelUuid is present in uuidArray 87 * 88 * @param uuidArray - Array of ParcelUuids 89 * @param uuid 90 */ isUuidPresent(ParcelUuid[] uuidArray, ParcelUuid uuid)91 public static boolean isUuidPresent(ParcelUuid[] uuidArray, ParcelUuid uuid) { 92 if ((uuidArray == null || uuidArray.length == 0) && uuid == null) 93 return true; 94 95 if (uuidArray == null) 96 return false; 97 98 for (ParcelUuid element: uuidArray) { 99 if (element.equals(uuid)) return true; 100 } 101 return false; 102 } 103 104 /** 105 * Returns true if there any common ParcelUuids in uuidA and uuidB. 106 * 107 * @param uuidA - List of ParcelUuids 108 * @param uuidB - List of ParcelUuids 109 * 110 */ containsAnyUuid(ParcelUuid[] uuidA, ParcelUuid[] uuidB)111 public static boolean containsAnyUuid(ParcelUuid[] uuidA, ParcelUuid[] uuidB) { 112 if (uuidA == null && uuidB == null) return true; 113 114 if (uuidA == null) { 115 return uuidB.length == 0 ? true : false; 116 } 117 118 if (uuidB == null) { 119 return uuidA.length == 0 ? true : false; 120 } 121 122 HashSet<ParcelUuid> uuidSet = new HashSet<ParcelUuid> (Arrays.asList(uuidA)); 123 for (ParcelUuid uuid: uuidB) { 124 if (uuidSet.contains(uuid)) return true; 125 } 126 return false; 127 } 128 129 /** 130 * Returns true if all the ParcelUuids in ParcelUuidB are present in 131 * ParcelUuidA 132 * 133 * @param uuidA - Array of ParcelUuidsA 134 * @param uuidB - Array of ParcelUuidsB 135 * 136 */ containsAllUuids(ParcelUuid[] uuidA, ParcelUuid[] uuidB)137 public static boolean containsAllUuids(ParcelUuid[] uuidA, ParcelUuid[] uuidB) { 138 if (uuidA == null && uuidB == null) return true; 139 140 if (uuidA == null) { 141 return uuidB.length == 0 ? true : false; 142 } 143 144 if (uuidB == null) return true; 145 146 HashSet<ParcelUuid> uuidSet = new HashSet<ParcelUuid> (Arrays.asList(uuidA)); 147 for (ParcelUuid uuid: uuidB) { 148 if (!uuidSet.contains(uuid)) return false; 149 } 150 return true; 151 } 152 153 } 154