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
21/**
22 * A class for creating a Bonjour service discovery request for use with
23 * {@link WifiP2pManager#addServiceRequest} and {@link WifiP2pManager#removeServiceRequest}
24 *
25 * {@see WifiP2pManager}
26 * {@see WifiP2pServiceRequest}
27 * {@see WifiP2pUpnpServiceRequest}
28 */
29public class WifiP2pDnsSdServiceRequest extends WifiP2pServiceRequest {
30
31    /**
32     * This constructor is only used in newInstance().
33     *
34     * @param query The part of service specific query.
35     * @hide
36     */
37    private WifiP2pDnsSdServiceRequest(String query) {
38        super(WifiP2pServiceInfo.SERVICE_TYPE_BONJOUR, query);
39    }
40
41    /**
42     * This constructor is only used in newInstance().
43     * @hide
44     */
45    private WifiP2pDnsSdServiceRequest() {
46        super(WifiP2pServiceInfo.SERVICE_TYPE_BONJOUR, null);
47    }
48
49    private WifiP2pDnsSdServiceRequest(String dnsQuery, int dnsType, int version) {
50        super(WifiP2pServiceInfo.SERVICE_TYPE_BONJOUR, WifiP2pDnsSdServiceInfo.createRequest(
51                dnsQuery,
52                dnsType,
53                version));
54    }
55
56    /**
57     * Create a service discovery request to search all Bonjour services.
58     *
59     * @return service request for Bonjour.
60     */
61    public static WifiP2pDnsSdServiceRequest newInstance() {
62        return new WifiP2pDnsSdServiceRequest();
63    }
64
65    /**
66     * Create a service discovery to search for Bonjour services with the specified
67     * service type.
68     *
69     * @param serviceType service type. Cannot be null <br>
70     *  "_afpovertcp._tcp."(Apple File Sharing over TCP)<br>
71     *  "_ipp._tcp" (IP Printing over TCP)<br>
72     *  "_http._tcp" (http service)
73     * @return service request for DnsSd.
74     */
75    public static WifiP2pDnsSdServiceRequest newInstance(String serviceType) {
76        if (serviceType == null) {
77            throw new IllegalArgumentException("service type cannot be null");
78        }
79        return new WifiP2pDnsSdServiceRequest(serviceType + ".local.",
80                WifiP2pDnsSdServiceInfo.DNS_TYPE_PTR,
81                WifiP2pDnsSdServiceInfo.VERSION_1);
82    }
83
84    /**
85     * Create a service discovery request to get the TXT data from the specified
86     * Bonjour service.
87     *
88     * @param instanceName instance name. Cannot be null. <br>
89     *  "MyPrinter"
90     * @param serviceType service type. Cannot be null. <br>
91     * e.g) <br>
92     *  "_afpovertcp._tcp"(Apple File Sharing over TCP)<br>
93     *  "_ipp._tcp" (IP Printing over TCP)<br>
94     * @return service request for Bonjour.
95     */
96    public static WifiP2pDnsSdServiceRequest newInstance(String instanceName,
97            String serviceType) {
98        if (instanceName == null || serviceType == null) {
99            throw new IllegalArgumentException(
100                    "instance name or service type cannot be null");
101        }
102        String fullDomainName = instanceName + "." + serviceType + ".local.";
103        return new WifiP2pDnsSdServiceRequest(fullDomainName,
104                WifiP2pDnsSdServiceInfo.DNS_TYPE_TXT,
105                WifiP2pDnsSdServiceInfo.VERSION_1);
106    }
107}
108