Re: transforming bytes to SOAP Message

hi Scott,

thanks for that. it was pretty much the conclusion I was coming too - I 
just didn't know if there might be a way to re-use the SOAP envelope 
rather than parse the message and create a new one?

Duncan



"Scott Nichol" <[email protected]> 
15/04/2005 16:59
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Re: transforming bytes to SOAP Message






If the fields you add will depend on the contents of the SOAP envelope 
being passed through the proxy, you pretty definitely will want to parse 
the envelope into something, then create a new envelope to pass through. 
You could do this with a standard XML parser.  Creating and traversing the 
DOM to see what you have received is not too onerous; likewise for 
subsequently adding elements and serializing the modified DOM to a stream.

If you are always going to add the same fields, you might try to cheat and 
not do full parsing, but I would guess that in the long run, you would be 
better off using a parser and manipulating a DOM.

Scott Nichol

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----- Original Message ----- 
From: <[email protected]>
To: <[email protected]>
Sent: Friday, April 15, 2005 9:52 AM
Subject: transforming bytes to SOAP Message


> Hello, I hope someone can help.
> 
> We're sending SOAP messages to our web service via a simple proxy. the 
> proxy sets up input and output streams and passes with SOAP message on 
to 
> the web service with no problems. Now what we want to do is add fields 
to 
> the body of the SOAP message when it passes through the proxy.
> 
> I suppose an ideal way to do this would be to transform the bytes stream 

> back to a SOAP message and manipulate the body, before passing it on. 
does 
> anyone know how to do this? The main problem is that the proxy is not in 
a 
> J2EE container so we can't use HTTPRequest.
> 
> Ideally I don't want to have to do string manipulation on the input and 
> repopulate a new envelope, if I can help it.
> 
> I'd be grateful of any help.
> 
> cheers
> Duncan
> 
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