Server hendle multiple connection .. i want advice

hi every body ,
i am working in a network project , my project to make server and connect it with multiple clients in the same time,the server send messages to the connected clients in the same time (multicast) ,and the clients can not
send to the server, i make a loop to accept connection and put them in linked list (handle connection in a linkedlist), when the server want to send a message for the clients , it loops on the linklist and sent the message
for each connection .
my qustion is: do u think that it is a good idea?
if you have better idea , could u please tell me?
thank u

If all you are doing is broadcasting to all the clients and one thread does the job, I would suggest you have just one thread.
Otherwise you could have a work queue for each thread, e.g. a BlockingQueue where each thread take()s from the queue then next thing to send. To get all threads to send a message just add the message to every queue.

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1) Let say that my server can handle multiple
connections. This is to cater for the different
requests from the client. For instance, the client may
make one connection for chatting and another
connection for sending file(something like we have in
Yahoo Messanger). So, at the server side, how can I
differentiate between the connection for CHAT and the
connection for SEND FILE so that I can handle the
requests separately. It means I can save the file sent
from client and display the chat message in the
JTextArea?Either your server listens on two different ports for two different protocolls, (then you would a server thread for each port) or you accept connections for both protocolls on both ports, and have the client state what protocoll it is using :
eg:
accept Connection - start new Thread - read first line - depending on protocoll pass protocoll object (CHAT, FTP) to run method
There is an example for a simple protocoll at : http://java.sun.com/docs/books/tutorial/networking/sockets/clientServer.html
2) How can I stop the server, clean up the thread and
start the server again for waiting new connection?
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          > Hi
          >
          > I'm using WL Server V8.1 sp4 and have successfully deployed my Connector
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Server hendle multiple connection .. i want advice

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