content: /*
   * Copyright (C) 2012 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package android.net.wifi.p2p.nsd;
  
  import android.net.wifi.p2p.WifiP2pManager;
  
  /**
   * A class for creating a Bonjour service discovery request for use with
   * {@link WifiP2pManager#addServiceRequest} and {@link WifiP2pManager#removeServiceRequest}
   *
   * {@see WifiP2pManager}
   * {@see WifiP2pServiceRequest}
   * {@see WifiP2pUpnpServiceRequest}
   */
  public class WifiP2pDnsSdServiceRequest extends WifiP2pServiceRequest {
  
      /**
       * This constructor is only used in newInstance().
       *
       * @param query The part of service specific query.
       * @hide
       */
      private WifiP2pDnsSdServiceRequest(String query) {
          super(WifiP2pServiceInfo.SERVICE_TYPE_BONJOUR, query);
      }
  
      /**
       * This constructor is only used in newInstance().
       * @hide
       */
      private WifiP2pDnsSdServiceRequest() {
          super(WifiP2pServiceInfo.SERVICE_TYPE_BONJOUR, null);
      }
  
      private WifiP2pDnsSdServiceRequest(String dnsQuery, int dnsType, int version) {
          super(WifiP2pServiceInfo.SERVICE_TYPE_BONJOUR, WifiP2pDnsSdServiceInfo.createRequest(
                  dnsQuery,
                  dnsType,
                  version));
      }
  
      /**
       * Create a service discovery request to search all Bonjour services.
       *
       * @return service request for Bonjour.
       */
      public static WifiP2pDnsSdServiceRequest newInstance() {
          return new WifiP2pDnsSdServiceRequest();
      }
  
      /**
       * Create a service discovery to search for Bonjour services with the specified
       * service type.
       *
       * @param serviceType service type. Cannot be null <br>
       *  "_afpovertcp._tcp."(Apple File Sharing over TCP)<br>
       *  "_ipp._tcp" (IP Printing over TCP)<br>
       *  "_http._tcp" (http service)
       * @return service request for DnsSd.
       */
      public static WifiP2pDnsSdServiceRequest newInstance(String serviceType) {
          if (serviceType == null) {
              throw new IllegalArgumentException("service type cannot be null");
          }
          return new WifiP2pDnsSdServiceRequest(serviceType + ".local.",
                  WifiP2pDnsSdServiceInfo.DNS_TYPE_PTR,
                  WifiP2pDnsSdServiceInfo.VERSION_1);
      }
  
      /**
       * Create a service discovery request to get the TXT data from the specified
       * Bonjour service.
       *
       * @param instanceName instance name. Cannot be null. <br>
       *  "MyPrinter"
       * @param serviceType service type. Cannot be null. <br>
       * e.g) <br>
       *  "_afpovertcp._tcp"(Apple File Sharing over TCP)<br>
       *  "_ipp._tcp" (IP Printing over TCP)<br>
       * @return service request for Bonjour.
       */
      public static WifiP2pDnsSdServiceRequest newInstance(String instanceName,
              String serviceType) {
          if (instanceName == null || serviceType == null) {
              throw new IllegalArgumentException(
                      "instance name or service type cannot be null");
          }
          String fullDomainName = instanceName + "." + serviceType + ".local.";
          return new WifiP2pDnsSdServiceRequest(fullDomainName,
                  WifiP2pDnsSdServiceInfo.DNS_TYPE_TXT,
                  WifiP2pDnsSdServiceInfo.VERSION_1);
      }
  }
  