Calling web service - using xsl within a delegation processor

I am trying to call a web service using data from my instance as a
parameter. I have used the documentation at
http://www.orbeon.com/ops/doc/processors-delegation#d51e411 as a reference.

The documentation example includes the fragment (note the xsl:value-of...):

   <p:input name="call">
      <delegation:execute service="stock-quote" operation="get-quote"
xsl:version="2.0">
         <m:GetQuote>
            <m:StockSymbol>
               <xsl:value-of select="/symbol"/>
            </m:StockSymbol>
            <m:LicenseKey>0</m:LicenseKey></m:GetQuote>
     </delegation:execute>
   </p:input>

My delegation step is (note the xsl:value-of...):

    <p:processor name="oxf:delegation">
        <p:input name="interface">
            <config>
                <service id="simple-ws" type="webservice" style="document"
                   
endpoint="http://localhost:7001/msd_formsWeb/processes/simple_ws.jpd">
                    <operation name="clientRequestwithReturn"
                       
soap-action="http://www.openuri.org/clientRequestwithReturn"/>
                </service>
            </config>
        </p:input>
        <p:input name="call">
            <delegation:execute service="simple-ws"
                operation="clientRequestwithReturn"          
                xmlns:delegation="http://orbeon.org/oxf/xml/delegation">
                <m:clientRequestwithReturn
xmlns:m="http://www.openuri.org/">
                    <m:requestMessage>
                        <xsl:value-of select="/model/user/name"/>
                    </m:requestMessage>
                </m:clientRequestwithReturn>
            </delegation:execute>
        </p:input>
        <p:output name="data" id="simple-ws" />
    </p:processor>

The problem is that the <xsl:value-of select="/model/user/name"/> is not
being transformed; it is passed straight through to the web service
(only to be rejected because it is not plain text).

I have managed to make the delegation work in a couple of ways:

1. hard code the value passed to the web service (not a real answer, but
proves the web service is responding)
2. pre-formatting the entire <delegation:execute> ...
</delegation:execute> in a separate oxf:xslt step and then referring to
it with an href as follows:

        <p:input name="call" href="#web-service-call" />

Is it possible to use <xsl:value-of ... /> within a <p:processor
name="oxf:delegation">?

If so, what can I do do get my xsl evaluated?

Thanks in anticipation,
John



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Suggest you build your <p:input name="call"> in a separate oxf:xslt
processor.

Steve

-----Original Message-----
From: John Unwin [mailto:[hidden email]]
Sent: 27 April 2007 06:27
To: [hidden email]
Subject: [ops-users] Calling web service - using xsl within a delegation
processor

I am trying to call a web service using data from my instance as a
parameter. I have used the documentation at
http://www.orbeon.com/ops/doc/processors-delegation#d51e411 as a
reference.

The documentation example includes the fragment (note the
xsl:value-of...):

   <p:input name="call">
      <delegation:execute service="stock-quote" operation="get-quote"
xsl:version="2.0">
         <m:GetQuote>
            <m:StockSymbol>
               <xsl:value-of select="/symbol"/>
            </m:StockSymbol>
            <m:LicenseKey>0</m:LicenseKey></m:GetQuote>
     </delegation:execute>
   </p:input>

My delegation step is (note the xsl:value-of...):

    <p:processor name="oxf:delegation">
        <p:input name="interface">
            <config>
                <service id="simple-ws" type="webservice"
style="document"
                   
endpoint="http://localhost:7001/msd_formsWeb/processes/simple_ws.jpd">
                    <operation name="clientRequestwithReturn"
                       
soap-action="http://www.openuri.org/clientRequestwithReturn"/>
                </service>
            </config>
        </p:input>
        <p:input name="call">
            <delegation:execute service="simple-ws"
                operation="clientRequestwithReturn"          
                xmlns:delegation="http://orbeon.org/oxf/xml/delegation">
                <m:clientRequestwithReturn
xmlns:m="http://www.openuri.org/">
                    <m:requestMessage>
                        <xsl:value-of select="/model/user/name"/>
                    </m:requestMessage>
                </m:clientRequestwithReturn>
            </delegation:execute>
        </p:input>
        <p:output name="data" id="simple-ws" />
    </p:processor>

The problem is that the <xsl:value-of select="/model/user/name"/> is not

being transformed; it is passed straight through to the web service
(only to be rejected because it is not plain text).

I have managed to make the delegation work in a couple of ways:

1. hard code the value passed to the web service (not a real answer, but

proves the web service is responding)
2. pre-formatting the entire <delegation:execute> ...
</delegation:execute> in a separate oxf:xslt step and then referring to
it with an href as follows:

        <p:input name="call" href="#web-service-call" />

Is it possible to use <xsl:value-of ... /> within a <p:processor
name="oxf:delegation">?

If so, what can I do do get my xsl evaluated?

Thanks in anticipation,
John






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Hi John,

Like Steve said, you need to build the document you feed to the "call"
input of the Delegation processor with XSLT for the <xsl:value-of> to
work. This is a bug in the documentation :). I changed this
<xsl:value-of> in the documentation with a static value.

http://forge.objectweb.org/tracker/index.php?func=detail&aid=306971&group_id=168&atid=350207

Alex

On 4/26/07, John Unwin <[hidden email]> wrote:
--
Orbeon Forms - Web 2.0 Forms for the Enterprise
http://www.orbeon.com/



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Thanks guys,

John





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