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 17 package android.net.wifi.p2p.nsd; 18 19 import 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 */ 29 public 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