WifiP2pUpnpServiceRequest.java revision 21ba8153325e010224c6bc75a0acdc98b6ca82e8 
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
19/**
20 * The class for a request of upnp service discovery.
21 * @hide
22 */
23public class WifiP2pUpnpServiceRequest extends WifiP2pServiceRequest {
24
25    /**
26     * This constructor is only used in newInstance().
27     *
28     * @param query The part of service specific query.
29     * @hide
30     */
31    protected WifiP2pUpnpServiceRequest(String query) {
32        super(WifiP2pServiceInfo.SERVICE_TYPE_UPNP, query);
33    }
34
35    /**
36     * This constructor is only used in newInstance().
37     * @hide
38     */
39    protected WifiP2pUpnpServiceRequest() {
40        super(WifiP2pServiceInfo.SERVICE_TYPE_UPNP, null);
41    }
42
43    /**
44     * Create a service discovery request to search all UPnP services.
45     *
46     * @return service request for UPnP.
47     */
48    public static WifiP2pUpnpServiceRequest newInstance() {
49        return new WifiP2pUpnpServiceRequest();
50    }
51    /**
52     * Create a service discovery request to search specified UPnP services.
53     *
54     * @param st ssdp search target.  Cannot be null.<br>
55     * e.g ) <br>
56     * <ul>
57     * <li>"ssdp:all"
58     * <li>"upnp:rootdevice"
59     * <li>"urn:schemas-upnp-org:device:MediaServer:2"
60     * <li>"urn:schemas-upnp-org:service:ContentDirectory:2"
61     * <li>"uuid:6859dede-8574-59ab-9332-123456789012"
62     * </ul>
63     * @return service request for UPnP.
64     */
65    public static WifiP2pUpnpServiceRequest newInstance(String st) {
66        if (st == null) {
67            throw new IllegalArgumentException("search target cannot be null");
68        }
69        StringBuffer sb = new StringBuffer();
70        sb.append(String.format("%02x", WifiP2pUpnpServiceInfo.VERSION_1_0));
71        sb.append(WifiP2pServiceInfo.bin2HexStr(st.getBytes()));
72        return new WifiP2pUpnpServiceRequest(sb.toString());
73    }
74}
75