perfsonar development work

[Maciej Glowiak <>]

Nina Jeliazkova wrote:
> Hello all,
>
> Are there restrictions on XQuery statements, that are being submitted to 
> LS ?  I've just found out that submitting the following XQuery to 
> PIONIER LS returns an error. This is a valid XQuery, successfully tested 
> locally with saxon9.
>
>
>    <?xml version='1.0' encoding='UTF-8'?>
>
>    <nmwg:message
>      type="LSQueryRequest"
>      id="msg1"
>      xmlns:nmwg="http://ggf.org/ns/nmwg/base/2.0/";
>        
> xmlns:xquery="http://ggf.org/ns/nmwg/tools/org/perfsonar/service/lookup/xquery/1.0/";> 
>
>                                                                                                                           
>
>      <nmwg:metadata id="meta1">
>
>        <xquery:subject id="sub1">
>          declare namespace nmwg="http://ggf.org/ns/nmwg/base/2.0/";;
>          declare namespace
>    perfsonar="http://ggf.org/ns/nmwg/tools/org/perfsonar/1.0/";;
>          declare namespace
>    psservice="http://ggf.org/ns/nmwg/tools/org/perfsonar/service/1.0/";;
>          declare namespace
>    
> xquery="http://ggf.org/ns/nmwg/tools/org/perfsonar/service/lookup/xquery/1.0/";; 
>
>                  for $y in /nmwg:store/nmwg:metadata return
>    <tag>
>    {
>    $y/perfsonar:subject/psservice:service
>    }
>    </tag>
>
>
>
>        </xquery:subject>
>        <nmwg:eventType>service.lookup.xquery</nmwg:eventType>
>
>      </nmwg:metadata>
>
>      <nmwg:data metadataIdRef="meta1"/>
>
>    </nmwg:message>
>
>
>
> The error message is as follows:
>
>    <?xml version="1.0" encoding="UTF-8"?>
>    <nmwg:message id="msg1_resp" messageIdRef="msg1"
>    type="LSQueryResponse" xmlns:nmwg="http://ggf.org/ns/nmwg/base/2.0/";>
>      <nmwg:metadata id="resultCodeMetadata">
>        <nmwg:eventType>warning.common.no_metadata</nmwg:eventType>
>      </nmwg:metadata>
>      <nmwg:data id="resultDescriptionData_for_resultCodeMetadata"
>    metadataIdRef="resultCodeMetadata">
>        <nmwgr:datum xmlns:nmwgr="http://ggf.org/ns/nmwg/result/2.0/";>No
>    output metadata was returned by MessageHandler. Maybe there was no
>    data trigger, or data trigger  didn't have valid metadataIdRef?
>    </nmwgr:datum>
>      </nmwg:data>
>    </nmwg:message>
>
> It seems the tags within the query mess the things up. However, it is a 
> valid XQuery by itself ... and I was hoping to apply few relatively 
> complex queries to extract all the necessary info in one go.
>
> Best regards,
> Nina

=============================================
<tag>
   {
   $y/perfsonar:subject/psservice:service
   }
   </tag>
=============================================

should be:

=============================================
&lt;tag&gt;
   {
   $y/perfsonar:subject/psservice:service
   }
&lt;/tag&gt;
=============================================


--

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

     Poznan Supercomputing and Networking Center ||
| (+48 61) 858 2024          -- skype_id: maciej_psnc   GG: 4526858 ||
 ====================================================================