BluetoothDeviceCriteria.java revision 65a5a7d84ad9b5324ae53eda526e39e513473af7 
1/*
2 * Copyright (C) 2014 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 com.android.tv.settings.util.bluetooth;
18
19import android.bluetooth.BluetoothClass;
20import android.bluetooth.BluetoothDevice;
21
22import java.util.regex.Pattern;
23
24/**
25 * Class that decides whether a BluetoothDevice matches the parameters of the
26 * type of device that is being looked for.
27 *
28 * For example, does the device MAC address match the expected pattern and
29 * does the device provide the types of services (audio, video, input, etc) that
30 * are needed.
31 */
32public class BluetoothDeviceCriteria {
33
34    // TODO add ability to determine matching device based on name
35
36    public static final String GOOGLE_MAC_PATTERN = "^(00:1A:11|F8:8F:CA).*";
37
38    private final Pattern mAddressPattern;
39
40    public BluetoothDeviceCriteria() {
41        this(".*");
42    }
43
44    public BluetoothDeviceCriteria(String macAddressPattern) {
45        mAddressPattern = Pattern.compile(macAddressPattern, Pattern.CASE_INSENSITIVE);
46    }
47
48    public final boolean isMatchingDevice(BluetoothDevice device) {
49        if (device == null) {
50            return false;
51        }
52
53        if (device.getAddress() == null || !isMatchingMacAddress(device.getAddress())) {
54            return false;
55        }
56
57        if (!isMatchingMajorDeviceClass(device.getBluetoothClass().getMajorDeviceClass())) {
58            return false;
59        }
60
61        if (!isMatchingDevieClass(device.getBluetoothClass().getDeviceClass())) {
62            return false;
63        }
64
65        return true;
66    }
67
68    public boolean isMatchingMacAddress(String mac) {
69        return mAddressPattern.matcher(mac).matches();
70    }
71
72    /**
73     * Override this method to restrict the major device classes that match.
74     * @param majorDeviceClass constant from {@link BluetoothClass.Device.Major}.
75     */
76    public boolean isMatchingMajorDeviceClass(int majorDeviceClass) {
77        return true;
78    }
79
80    /**
81     * Override this method to restrict specific device classes that match.
82     * @param majorMinorClass constant from {@link BluetoothClass.Device}
83     */
84    public boolean isMatchingDevieClass(int majorMinorClass) {
85        return true;
86    }
87}
88