From: Serge Savoie <seurdge.sawa@...>
Date: 2008-09-25T23:01:47+09:00
Subject: Re: Ruby Socket to Java Socket


Ok, I have experiment a lot and found that :

When the Java Server use :
    in = requestSocket.getInputStream();

It works... I can read what the Ruby socket is sending...

But the real Java server that I have to talk with use :

    in = new ObjectInputStream( new BufferedInputStream( 
requestSocket.getInputStream() ) );

And in this case I get :

java.io.StreamCorruptedException: invalid stream header
  at 
java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:753)
  at java.io.ObjectInputStream.<init>(ObjectInputStream.java:268)
  at project1.SergeServer1.main(SergeServer1.java:44)

The client can't change the server so...

Is there a mean to force a header in a way that the ObjectInputStream 
will be able to read what I send from Ruby ?

Here's my test Ruby code :

    addrinfo = Socket::getaddrinfo('localhost', 9501, nil, 
Socket::SOCK_STREAM)
    addrinfo.each do |af, port, name, addr|
    begin
      sock = TCPSocket.new(addr, port)
      sock.send("test", 0)
    rescue
    end
  end


Thx in advance !

Seurdge



Serge Savoie wrote:
> Hello !
> 
> I have some problem trying to establish dialog between a Ruby
> socket(client) and a Java server socket (java.net.ServerSocket).
> 
> Everytime I try to write on the server socket I get an "Invalid stream
> header" error from the server...
> 
> s = TCPSocket.open("host", 9061)
> s.write("test \n");
> 
> => Error
> 
> Can someone give a little hint on how to start inthe right way on this ?
> 
> Thx a lot !
> 
> Seurdge

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