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      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 import java.util.Locale;
     22 
     23 /**
     24  * A class for creating a Upnp service discovery request for use with
     25  * {@link WifiP2pManager#addServiceRequest} and {@link WifiP2pManager#removeServiceRequest}
     26  *
     27  * {@see WifiP2pManager}
     28  * {@see WifiP2pServiceRequest}
     29  * {@see WifiP2pDnsSdServiceRequest}
     30  */
     31 public class WifiP2pUpnpServiceRequest extends WifiP2pServiceRequest {
     32 
     33     /**
     34      * This constructor is only used in newInstance().
     35      *
     36      * @param query The part of service specific query.
     37      * @hide
     38      */
     39     protected WifiP2pUpnpServiceRequest(String query) {
     40         super(WifiP2pServiceInfo.SERVICE_TYPE_UPNP, query);
     41     }
     42 
     43     /**
     44      * This constructor is only used in newInstance().
     45      * @hide
     46      */
     47     protected WifiP2pUpnpServiceRequest() {
     48         super(WifiP2pServiceInfo.SERVICE_TYPE_UPNP, null);
     49     }
     50 
     51     /**
     52      * Create a service discovery request to search all UPnP services.
     53      *
     54      * @return service request for UPnP.
     55      */
     56     public static WifiP2pUpnpServiceRequest newInstance() {
     57         return new WifiP2pUpnpServiceRequest();
     58     }
     59     /**
     60      * Create a service discovery request to search specified UPnP services.
     61      *
     62      * @param st ssdp search target.  Cannot be null.<br>
     63      * e.g ) <br>
     64      * <ul>
     65      * <li>"ssdp:all"
     66      * <li>"upnp:rootdevice"
     67      * <li>"urn:schemas-upnp-org:device:MediaServer:2"
     68      * <li>"urn:schemas-upnp-org:service:ContentDirectory:2"
     69      * <li>"uuid:6859dede-8574-59ab-9332-123456789012"
     70      * </ul>
     71      * @return service request for UPnP.
     72      */
     73     public static WifiP2pUpnpServiceRequest newInstance(String st) {
     74         if (st == null) {
     75             throw new IllegalArgumentException("search target cannot be null");
     76         }
     77         StringBuffer sb = new StringBuffer();
     78         sb.append(String.format(Locale.US, "%02x", WifiP2pUpnpServiceInfo.VERSION_1_0));
     79         sb.append(WifiP2pServiceInfo.bin2HexStr(st.getBytes()));
     80         return new WifiP2pUpnpServiceRequest(sb.toString());
     81     }
     82 }
     83