1/*
2 * Copyright (C) 2012 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.net.wifi.p2p.nsd;
18
19import android.net.wifi.p2p.WifiP2pManager;
20
21import java.util.Locale;
22
23/**
24 * A class for creating a Upnp service discovery request for use with
25 * {@link WifiP2pManager#addServiceRequest} and {@link WifiP2pManager#removeServiceRequest}
26 *
27 * {@see WifiP2pManager}
28 * {@see WifiP2pServiceRequest}
29 * {@see WifiP2pDnsSdServiceRequest}
30 */
31public class WifiP2pUpnpServiceRequest extends WifiP2pServiceRequest {
32
33    /**
34     * This constructor is only used in newInstance().
35     *
36     * @param query The part of service specific query.
37     * @hide
38     */
39    protected WifiP2pUpnpServiceRequest(String query) {
40        super(WifiP2pServiceInfo.SERVICE_TYPE_UPNP, query);
41    }
42
43    /**
44     * This constructor is only used in newInstance().
45     * @hide
46     */
47    protected WifiP2pUpnpServiceRequest() {
48        super(WifiP2pServiceInfo.SERVICE_TYPE_UPNP, null);
49    }
50
51    /**
52     * Create a service discovery request to search all UPnP services.
53     *
54     * @return service request for UPnP.
55     */
56    public static WifiP2pUpnpServiceRequest newInstance() {
57        return new WifiP2pUpnpServiceRequest();
58    }
59    /**
60     * Create a service discovery request to search specified UPnP services.
61     *
62     * @param st ssdp search target.  Cannot be null.<br>
63     * e.g ) <br>
64     * <ul>
65     * <li>"ssdp:all"
66     * <li>"upnp:rootdevice"
67     * <li>"urn:schemas-upnp-org:device:MediaServer:2"
68     * <li>"urn:schemas-upnp-org:service:ContentDirectory:2"
69     * <li>"uuid:6859dede-8574-59ab-9332-123456789012"
70     * </ul>
71     * @return service request for UPnP.
72     */
73    public static WifiP2pUpnpServiceRequest newInstance(String st) {
74        if (st == null) {
75            throw new IllegalArgumentException("search target cannot be null");
76        }
77        StringBuffer sb = new StringBuffer();
78        sb.append(String.format(Locale.US, "%02x", WifiP2pUpnpServiceInfo.VERSION_1_0));
79        sb.append(WifiP2pServiceInfo.bin2HexStr(st.getBytes()));
80        return new WifiP2pUpnpServiceRequest(sb.toString());
81    }
82}
83