users@grizzly.java.net

Re: multicast over Grizzly ?

From: Oleksiy Stashok <Oleksiy.Stashok_at_Sun.COM>
Date: Tue, 15 Sep 2009 10:30:23 +0200

Hi Sebastien,

unfortunately not, we were too busy with Glassfish related tasks :
( Once integrated, hope we will have more time for Grizzly 2.0

Thanks.

WBR,
Alexey.

On Sep 15, 2009, at 3:56 , Survivant 00 wrote:

> Alexey,
>
> did you had time to check to implement that in grizzly 2.x ?
>
>
>
> 2009/8/11 Oleksiy Stashok <Oleksiy.Stashok_at_sun.com>
> Hi Sebastien,
>
>> No body had an idea how to do that ?
> Sorry, it's quite tough with time now...
> Don't we try to workaround this using asynchronous write queue? I
> remember we were solving something with multicasting, don't we?
>
>> I checked in the unittest and we have UDPIOClient. But it's using
>> plain DatagramSocket.
> Right.
>
>>
>> I have 3 cases.
>>
>> #1 - Send a UDP message using MulticastSocket and close the socket.
>> #2 - Send a UDP message using DatagramSocket but wait for a
>> response (wait until TTL)
>> #3 - Listen for UDP message using MulticastSocket (while(true))
> Probably I can try to implement that for Grizzly 2.0, cause for
> Grizzly 1.9.x it could mean changing existing API, which I don't
> want to do :)
>
> WBR,
> Alexey.
>
>>
>>
>>
>>
>>
>> 2009/8/7 Survivant 00 <survivant00_at_gmail.com>
>> I didn't mean multicast like JDK7.. but a broadcast like this
>>
>> SERVER
>> MulticastSocket ssdpUniSock = null;
>> InetAddress group = null;
>>
>> try {
>> group = InetAddress.getByName(host);
>> ssdpUniSock = new MulticastSocket(port);
>> ssdpUniSock.joinGroup(group);
>>
>> byte ssdvRecvBuf[] = new byte[1024];
>> DatagramPacket dgmPacket2 = new
>> DatagramPacket(ssdvRecvBuf, 1024);
>>
>> ssdpUniSock.receive(dgmPacket2);
>>
>> .....
>>
>> CLIENT
>>
>> MulticastSocket ssdpUniSock = new MulticastSocket(null);
>> ssdpUniSock.setReuseAddress(true);
>>
>> String msg = "Grizzly is the best";
>>
>> logger.info("sending message \n" + msg);
>>
>> DatagramPacket dgmPacket = new
>> DatagramPacket(msg.getBytes(), msg.length(),
>> InetAddress.getByName(host), port);
>>
>> ssdpUniSock.send(dgmPacket);
>>
>> ssdpUniSock.close();
>>
>>
>>
>>
>> 2009/8/7 Survivant 00 <survivant00_at_gmail.com>
>>
>> I'm trying to do multicast over Grizzly. (client and server ..
>> send/receive)
>>
>> - first.. is it possible ?
>> - there is a sample somewhere ?
>>
>> Grizzly 1.x or Grizzly 2 is ok for me.
>>
>> maybe if we don't have multicast. There is a sample for UDP that
>> could give the same result ?
>>
>>
>
>
>
>
> --
>
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