Android Open Source - mha-android M D N S Discovery

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Back to project page mha-android.

License

The source code is released under:

Copyright (c) 2011-2012 Cameron Porter, Ryan Brown http://github.com/camporter/mha-android Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated...

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Java Source Code

package com.teamacra.myhomeaudio.discovery;
/* w  w  w  . ja v  a 2 s.c om*/
import java.io.IOException;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.Collections;
import java.util.Enumeration;
import java.util.Random;

import javax.jmdns.JmDNS;
import javax.jmdns.JmmDNS;
import javax.jmdns.ServiceInfo;

import android.net.wifi.WifiManager.MulticastLock;
import android.util.Log;


public class MDNSDiscovery {
  public static final String DISCOVERY_TYPE = "_myhomeaudio._tcp.local.";
  
  public MDNSDiscovery() {
    
  }
  
  public String run(MulticastLock lock) {
    lock.acquire();
    try {
      // Discovery must be set on all possible network interfaces, so go
      // through them all
      Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
      for (NetworkInterface netint : Collections.list(nets)) {
        // Each interface can have multiple addresses
        Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
        for (InetAddress inetAddress : Collections.list(inetAddresses)) {
          // Ignore loopback or link-local
          //if (!inetAddress.isLoopbackAddress() && !inetAddress.isLinkLocalAddress()) {
            JmDNS jmdns = JmDNS.create(inetAddress, null);
            
            ServiceInfo[] serviceInfos = jmdns.list(DISCOVERY_TYPE);
            
            jmdns.close();
          //}
        }
      }
      
    } catch (IOException e) {
      e.printStackTrace();
    }
    lock.release();
    return null;
  }
}

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