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;
  
  import java.util.Locale;
  
  /**
   * A class for creating a Upnp service discovery request for use with
   * {@link WifiP2pManager#addServiceRequest} and {@link WifiP2pManager#removeServiceRequest}
   *
   * {@see WifiP2pManager}
   * {@see WifiP2pServiceRequest}
   * {@see WifiP2pDnsSdServiceRequest}
   */
  public class WifiP2pUpnpServiceRequest extends WifiP2pServiceRequest {
  
      /**
       * This constructor is only used in newInstance().
       *
       * @param query The part of service specific query.
       * @hide
       */
      protected WifiP2pUpnpServiceRequest(String query) {
          super(WifiP2pServiceInfo.SERVICE_TYPE_UPNP, query);
      }
  
      /**
       * This constructor is only used in newInstance().
       * @hide
       */
      protected WifiP2pUpnpServiceRequest() {
          super(WifiP2pServiceInfo.SERVICE_TYPE_UPNP, null);
      }
  
      /**
       * Create a service discovery request to search all UPnP services.
       *
       * @return service request for UPnP.
       */
      public static WifiP2pUpnpServiceRequest newInstance() {
          return new WifiP2pUpnpServiceRequest();
      }
      /**
       * Create a service discovery request to search specified UPnP services.
       *
       * @param st ssdp search target.  Cannot be null.<br>
       * e.g ) <br>
       * <ul>
       * <li>"ssdp:all"
       * <li>"upnp:rootdevice"
       * <li>"urn:schemas-upnp-org:device:MediaServer:2"
       * <li>"urn:schemas-upnp-org:service:ContentDirectory:2"
       * <li>"uuid:6859dede-8574-59ab-9332-123456789012"
       * </ul>
       * @return service request for UPnP.
       */
      public static WifiP2pUpnpServiceRequest newInstance(String st) {
          if (st == null) {
              throw new IllegalArgumentException("search target cannot be null");
          }
          StringBuffer sb = new StringBuffer();
          sb.append(String.format(Locale.US, "%02x", WifiP2pUpnpServiceInfo.VERSION_1_0));
          sb.append(WifiP2pServiceInfo.bin2HexStr(st.getBytes()));
          return new WifiP2pUpnpServiceRequest(sb.toString());
      }
  }
  