perfsonar development work

[Maciej Glowiak <>]

Hi Jason and Jeff,

Decided for using XML database and XQuery as query language for LS we 
also decided to have XML as a response, but we hadn't defined it in 
schema classes. So, there were a couple of solutions:

  - send XML response as text (converted < > to XML entities)
  or
  - modify schema classes to handle it (convert to DOM/text)

I chose the first option because it let us avoid modification of schema 
classes and I could do it on LS level of application. But of course we 
may re-think it and implement the second solution.

Maciej

Jason Zurawski wrote:
> Jeff;
>
>
> > In any case, the responses from the 'test' scripts have malformed XML. 
> > For some reason '>' and '<' are replaced with the escape codes. Has 
> > anyone seen this? Is this something I have misconfigured in tomcat?
>
> I had a direct e-mail exchange with Maciej on this back during the 
> release phase:
>
> Jason Zurawski napisa?(a):
> > Maciej;
> >
> > I am testing the LS right now, and I am getting a response with some 
> > funny markup (attached) do you know what could cause this?
> >
> > -jason
> Yes, it's XML inside XML. The result of XQuery expression may be 
> anything -- in our specific case any XML content.
>
> In some cases this XML content will be NMWG XML but it doesn't have to. 
> So I decided to convert XML into "string" with &lt; &gt; entities. We 
> had quite long discussion about it months ago (I needed some changes in 
> schema classes).
>
> So, in other words, our response is:
>
> =========================================================================
> <?xml version="1.0" encoding="UTF-8"?>
> <nmwg:message xmlns:nmwg="http://ggf.org/ns/nmwg/base/2.0/"; 
> id="localhost.-7f6d9204:10baf4475ff:-7ffe" type="LSQueryResponse">
> <nmwg:metadata id="LSQueryResponseMetadata_0" />
> <nmwg:data id="LSQueryResponseData_0" 
> metadataIdRef="LSQueryResponseMetadata_0">
> <psservice:datum 
> xmlns:psservice="http://ggf.org/ns/nmwg/tools/org/perfsonar/service/1.0/";>
>
> -------------------------------------------------------------------------
> then the XQuery result comes
> -------------------------------------------------------------------------
>
> </psservice:datum>
> </nmwg:data>
> </nmwg:message>
> =========================================================================
>
>
> -jason


--

 --------------------------------------------------------------------
| Maciej Glowiak        Network Research and Development            ||
| 

     Poznan Supercomputing and Networking Center ||
| (+48 61) 858 2024     http://monstera.man.poznan.pl/              ||
 ====================================================================