The side effect of a broadcast without authentication is flooding the
network with unwanted disovery packets
I guess this is OK if you're utilising a high datarate transmission i guess
In your case your SOAP Request should look like
<?xml version="1.0"?>
<SOAP-ENV:Envelope
xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"; >
<SOAP-ENV:Body>
<getTest>
<Test>Test</Test>
</getTest>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
If you want to discover a "SOAP based" web-service based on some
characteristic such as Business Service Category why not use UDDI4J?
Take a look at
http://sourceforge.net/projects/uddi4j
Martin-
----- Original Message -----
From: "Francesco Munari" <[EMAIL PROTECTED]>
To: "Martin Gainty" <[EMAIL PROTECTED]>
Cc: <[email protected]>
Sent: Monday, May 30, 2005 12:44 PM
Subject: Re: SOAP-over-UDP
Martins,
It is for this reason that I'd like to broadcast a SOAP request
instead of a simple XML-RPC message. The goal of my framework is to
keep the "context awareness" offered by XML language.
If you are sure that there is no way to send a broadcast SOAP request,
the last solution, I think, it could be XML-RPC.
So, two questions:
1) are you sure ther's no way to send a broadcast SOAP request?
2) In order to send a broadcast XML-RPC message I've to cerate a
StringWriter like this (for example)?
<?xml version="1.0" ?>
<methodCall>
<methodName>getTest</methodName>
<params>
<param>
<value>
<string>Test</string>
</value>
</param>
</params>
</methodCall>
Thank's Martin.
Francesco
2005/5/30, Martin Gainty <[EMAIL PROTECTED]>:
Francesco-
You can Broadcast XML-RPC assuming you dont mind flooding your network
The question is can you confine your application to using the more basic
datatypes supported by XML-RPC
vs implementing SOAP features (user-defined datatypes, namespace URI)?
Anyone else?
Martin-
----- Original Message -----
From: "Francesco Munari" <[EMAIL PROTECTED]>
To: "Martin Gainty" <[EMAIL PROTECTED]>
Cc: <[email protected]>
Sent: Monday, May 30, 2005 6:45 AM
Subject: Re: SOAP-over-UDP
Grazie! :)
Could someone tell me if a simple XML-RPC message may be sent to a
broadcast address? A simple message with the medthod to be invoked. In
this way I should be able to send a broadcast XML-RPC request with the
appropriate UDDI inquiry method; a server (containing a UDDI registry)
should receive it, invoke that method and send a reply in XML format
to the sender.
It could be a good idea?
thank you again!
Francesco
2005/5/29, Martin Gainty <[EMAIL PROTECTED]>:
> benvenuto!
> Martin-
>
> ----- Original Message -----
> From: "Francesco Munari" <[EMAIL PROTECTED]>
> To: <[email protected]>
> Sent: Saturday, May 28, 2005 5:41 PM
> Subject: Re: SOAP-over-UDP
>
> Thank you all for your very quick reply!
>
> I've heard about this SOAP-over-UDP spec
>
(http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnglobspec/html/soap-over-udp.asp).
> So, Martin, you say that it could not be a solution? Perhaps it should
> be an idea using Mark's solution (with DNS).
>
> I thought to resolve the problem putting a SOAP envelope into a UDP
> datagram, send the datagram to a broadcast ip and that's all
> folks...but I don't know how and, as you, Martins, wrote, I was not
> able to find anybody who has implemented this yet.
>
> Can you suggest me another solutions?
>
> Thank you very much again!!
>
> Cheers,
>
> Francesco
>
> 2005/5/28, Martin Gainty <[EMAIL PROTECTED]>:
> > Mark/Francesco
> > I would caution on use of UDP as the SOAP Portocols (e.g. HTTP) is/are
> > decidely not UDP but instead a connection-oriented TCP
> > To date I have not seen UDP Ports used for SOAP transmission although
> > since
> > there is no requirement for verifiable connection and or handshakes
> > I would venture to guess UDP is available as the transmission medium
> > but
> > I
> > have not seen any UDP Ports used for SOAP thus far
> > Anyone else ???
> > Ciao-
> > Martin-
> >
> > ----- Original Message -----
> > From: "mdonaghue" <[EMAIL PROTECTED]>
> > To: <[email protected]>; "'Francesco Munari'"
> > <[EMAIL PROTECTED]>
> > Sent: Saturday, May 28, 2005 3:14 PM
> > Subject: RE: SOAP-over-UDP
> >
> > > Hi Franceso,
> > >
> > > I've worked briefly with the apache soap api, not that familiar with
> > > it.
> > > Typically a soap message is sent to a single soap server address,
> > > which
> > > is
> > > specified by a url or an ip address, as well as a port. So your
> > > server
> > > address on the LAN might be something like 192.168.100.2:8080. (I'm
> > > not
> > > sure
> > > what the port is for UDDI, so just using standard TomCat Web Server
> > > port).
> > >
> > > IIRC, you there's a point at which you specify that address in the
> > > setup
> > > for
> > > your soap call. One thing you could try is to change the address to
> > > the
> > > subnet's broadcast address, 255.255.255.0:8080, assuming a class c
> > > network
> > > where the first 3 quads specify the network portion of the submask.
> > >
> > > However, this may not a scalable solution, since the broadcast
> > > wouldn't
> > > carry beyond the physical subnet on which you are located. Using
> > > UDDI
> > > to
> > > discover services is one thing, but dynamically discovering UDDI
> > > servers
> > > is
> > > obviously a different problem. It also doesn't address the issue of
> > > more
> > > than one UDDI server running on the same subnet.
> > >
> > > A more generalized solution might involve a distributed ip lookup
> > > service,
> > > namely DNS. For example when DNS looks up the ip address of
> > > Yahoo.com,
> > > at
> > > some point the actual ip address that serves the request is
> > > dynamically
> > > assigned to one of dozens (or hundreds) of servers based on a
> > > scheduling
> > > scheme. You could locally enable DNS lookup, and create an entry
> > > based
> > > on
> > > some url like "myuddpsever.com", and give it your local UDDI
> > > server's
> > > ip
> > > address, and the rest would be handled within the network. The
> > > advantage
> > > to
> > > this is your UDDP server could be anywhere and your message would
> > > still
> > > reach it.
> > >
> > > hth,
> > > Mark
> > >
> > >
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Francesco Munari [mailto:[EMAIL PROTECTED]
> > > Sent: Saturday, May 28, 2005 4:58 AM
> > > To: [email protected]
> > > Subject: SOAP-over-UDP
> > >
> > > Hi, I'm desperate!
> > > I'm trying to find out how to send a broadcast SOAP request to a
> > > UDDI
> > > registry in a LAN, but I'm not able to do this. I've looked for some
> > > example but I've not found anithing.
> > >
> > > Please...could anybody help me?
> > > I'm making a thesis for the University of Florence (Italy) and I
> > > have
> > > to discovery dinamically web service published in some UDDI registry
> > > somewhere in a LAN. I have to send a broadcast SOAP request to these
> > > UDDI registry (as I wrote few lines above).
> > > Of course I'm using Java language.
> > >
> > > Thank you very much for your help...I'm in a great hurry...thanks
> > > very
> > > very much to everyone could help me!
> > >
> > > Best reguards,
> > >
> > > Francesco
> > >
> > >
> >
>
