How could I use XPath at this situation?

[normandesjr]

Hi,

   Follow a part of my wsdl:

<types>
    <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.coreo.com.br/CoreoControlInterceptor" version="1.0">
      <xs:element name="interceptor" type="tns:interceptor" />
      <xs:element name="interceptorResponse" type="tns:interceptorResponse" />
      <xs:complexType name="interceptor">
        <xs:sequence>
          <xs:element minOccurs="0" name="userName" type="xs:string" />
          <xs:element minOccurs="0" name="componentName" type="xs:string" />
          <xs:element maxOccurs="unbounded" minOccurs="0" name="params" type="xs:string" />
        </xs:sequence>
      </xs:complexType>
      <xs:complexType name="interceptorResponse">
        <xs:sequence>
          <xs:element minOccurs="0" name="return" type="xs:anyType" />
        </xs:sequence>
      </xs:complexType>
    </xs:schema>
  </types>
  <message name="CoreoControlInterceptor_interceptorResponse">
    <part element="tns:interceptorResponse" name="interceptorResponse" />
  </message>
  <message name="CoreoControlInterceptor_interceptor">
    <part element="tns:interceptor" name="interceptor" />
  </message>
  <portType name="CoreoControlInterceptor">
    <operation name="interceptor" parameterOrder="interceptor">
      <input message="tns:CoreoControlInterceptor_interceptor" />
      <output message="tns:CoreoControlInterceptor_interceptorResponse" />
    </operation>
  </portType>

Then at my bpel, I am trying to copy a simple literal value to "componentName" at interceptor complexType. Follow my bpel:

...

<variable name="CoreoComponentSMSRequest2" messageType="CoreoControlInterceptor:CoreoControlInterceptor_interceptor" />

...

<assign>
   <copy>
     <from>'CoreoComponentSMS'</from>
      <to variable="CoreoComponentSMSRequest2" part="interceptor">
         <query>???????</query>
      </to>
    </copy>

</assign>

..

I tried a lot of things, all unsuccessfully. Could you please help me?

Regards,

Normandes Junior

[objectiser]

Hi

I think the problem is that you need to initialise the structure of the 'CoreoComponentSMSRequest2' variable. This can be done by assigning a literal with a simple template of the XML to the variable, and then follow it with your current assignment using the query /interceptor/componentName.

So something like:

<assign>
   <copy>
     <from>

          <interceptor xmlns="...." ><username/><componentName/></interceptor>

     </from>
      <to variable="CoreoComponentSMSRequest2" part="interceptor"/>
    </copy>

</assign>

<assign>
   <copy>
     <from>'CoreoComponentSMS'</from>
      <to variable="CoreoComponentSMSRequest2" part="interceptor">
         <query>/interceptor/componentName</query>
      </to>
    </copy>

</assign>

Regards

Gary

[normandesjr]

Not work yet. I tried to do this way:

   <assign>
      <copy>
        <from>
           <interceptor xmlns="http://www.coreo.com.br/CoreoControlInterceptor"><userName/><componentName/></interceptor>
        </from>
        <to variable="CoreoComponentSMSRequest2" part="interceptor"/>
      </copy>
      <copy>
        <from>'ComponentSMS'</from>
        <to variable="CoreoComponentSMSRequest2" part="interceptor">
          <query>/interceptor/componentName</query>
        </to>
      </copy>
    </assign>

A fault occurs:

08:47:18,514 INFO  [ASSIGN] Assignment Fault: {http://docs.oasis-open.org/wsbpel/2.0/process/executable}selectionFailure,lineNo=24,faultExplanation=No results for expression: {OXPath10Expression /interceptor/componentName}

Do you have an idea? I will try other expressions, but I am not sure if I will be able to solve.

Thanks for you help.

Normandes Junior

[normandesjr]

It works but not how I expected. I have to change the partner link to RPC, so the WSDL change to this:

<types>
  <xs:schema targetNamespace="http://jaxb.dev.java.net/array" version="1.0" xmlns:xs="http://www.w3.org/2001/XMLSchema">
   <xs:complexType final="#all" name="stringArray">
    <xs:sequence>
     <xs:element maxOccurs="unbounded" minOccurs="0" name="item" nillable="true" type="xs:string"/>
    </xs:sequence>
   </xs:complexType>
  </xs:schema>
</types>
<message name="CoreoControlInterceptor_interceptorResponse">
  <part name="return" type="xsd:anyType"/>
</message>
<message name="CoreoControlInterceptor_interceptor">
  <part name="userName" type="xsd:string"/>
  <part name="componentName" type="xsd:string"/>
  <part name="params" type="ns1:stringArray"/>
</message>
<portType name="CoreoControlInterceptor">
  <operation name="interceptor" parameterOrder="userName componentName params">
   <input message="tns:CoreoControlInterceptor_interceptor"/>
   <output message="tns:CoreoControlInterceptor_interceptorResponse"/>
  </operation>
</portType>
<binding name="CoreoControlInterceptorBinding" type="tns:CoreoControlInterceptor">
  <soap:binding style="rpc" transport="http://schemas.xmlsoap.org/soap/http"/>
  <operation name="interceptor">
   <soap:operation soapAction="" style="rpc"/>
   <input>
    <soap:body namespace="http://www.coreo.com.br/CoreoControlInterceptor" use="literal"/>
   </input>
   <output>
    <soap:body namespace="http://www.coreo.com.br/CoreoControlInterceptor" use="literal"/>
   </output>
  </operation>
</binding>

Then at the BPEL, I use this way:

   <assign>
      <copy>
        <from><literal>
           <userName>user</userName>
        </literal></from>
        <to variable="CoreoComponentSMSRequest2" part="userName"/>
      </copy>
      <copy>
        <from><literal>
           <compnentName>component</componentName>
        </literal></from>
        <to variable="CoreoComponentSMSRequest2" part="componentName"/>
      </copy>
      <copy>
        <from><literal>
           <params/>
        </literal></from>
        <to variable="CoreoComponentSMSRequest2" part="params"/>
      </copy>
    </assign>

There is some limitation using "document" as binding type?

But this didn't work for all tags. As, params is array, it didn't work.

Normandes Junior

[normandesjr]

Now works parts. I did:

   <assign>
      <copy>
        <from><literal><CoreoControlInterceptor:interceptor><componentName xmlns=""/><userName xmlns=""/><params xmlns=""/></CoreoControlInterceptor:interceptor></literal></from>
        <to variable="CoreoComponentSMSRequest2" part="interceptor"/>
      </copy>
      <copy>
        <from>'ComponentSMS'</from>
        <to>$CoreoComponentSMSRequest2.interceptor/componentName</to>
      </copy>
      <copy>
        <from>'normandes'</from>
        <to>$CoreoComponentSMSRequest2.interceptor/userName</to>
      </copy>
      <copy>
        <from>'from=1234'</from>
        <to>$CoreoComponentSMSRequest2.interceptor/params</to>
      </copy>
    </assign>

for the wsdl:

<types>
  <xs:schema targetNamespace="http://www.coreo.com.br/CoreoControlInterceptor" version="1.0" xmlns:tns="http://www.coreo.com.br/CoreoControlInterceptor" xmlns:xs="http://www.w3.org/2001/XMLSchema">
   <xs:element name="interceptor" type="tns:interceptor"/>
   <xs:element name="interceptorResponse" type="tns:interceptorResponse"/>
   <xs:complexType name="interceptor">
    <xs:sequence>
     <xs:element minOccurs="0" name="userName" type="xs:string"/>
     <xs:element minOccurs="0" name="componentName" type="xs:string"/>
     <xs:element maxOccurs="unbounded" minOccurs="0" name="params" type="xs:string"/>
    </xs:sequence>
   </xs:complexType>
   <xs:complexType name="interceptorResponse">
    <xs:sequence>
     <xs:element minOccurs="0" name="return" type="xs:anyType"/>
    </xs:sequence>
   </xs:complexType>
  </xs:schema>
</types>
<message name="CoreoControlInterceptor_interceptorResponse">
  <part element="tns:interceptorResponse" name="interceptorResponse"/>
</message>
<message name="CoreoControlInterceptor_interceptor">
  <part element="tns:interceptor" name="interceptor"/>
</message>

But what I am trying to do is pass more than one 'params'. Do you have an idea for this?

Thanks,

Normandes Junior.

[normandesjr]

Now works with document. I have to initialized as you said.

   <assign>
      <copy>
        <from><literal><CoreoControlInterceptor:interceptor><componentName xmlns=""/><userName xmlns=""/><params xmlns=""/><params xmlns=""/><params xmlns=""/></CoreoControlInterceptor:interceptor></literal></from>
        <to variable="CoreoComponentSMSRequest2" part="interceptor"/>
      </copy>
      <copy>
        <from>'ComponentSMS'</from>
        <to>$CoreoComponentSMSRequest2.interceptor/componentName</to>
      </copy>
      <copy>
        <from>'normandes'</from>
        <to>$CoreoComponentSMSRequest2.interceptor/userName</to>
      </copy>
      <copy>
        <from>'from=1111'</from>
        <to>$CoreoComponentSMSRequest2.interceptor/params[1]</to>
      </copy>
      <copy>
        <from>'from=2222'</from>
        <to>$CoreoComponentSMSRequest2.interceptor/params[2]</to>
      </copy>
    </assign>

Then to use more than on variable "params", I should initialize one by one.

Normandes Junior.

[objectiser]

Glad its working.

Unfortunately I don't think there is a way to do list (or multiple element) manipulating in BPEL/xpath. If you find a way to do it, I would also be interested.

Regards

Gary

[jcunanan]

Hello I seem to be having the XPATH problem:

15:25:57,930 INFO  [ASSIGN] Assignment Fault: {http://docs.oasis-open.org/wsbpel/2.0/process/executable}selectionFailure,lineNo=75,faultExplanation=No results for expression: {OXPath10Expression $zipcodePLRequest.getCityNameByZip/arg0}

I tried doing exactly as you have done.  Been stuck on this problem for a while now.

Here is the wsdl of the service i'm trying to hit and the copy segment out of my BPEL that is failing.

WSDL:

<?xml version="1.0" encoding="utf-8" ?>
<definitions name='ZipCodeWSService' targetNamespace='http://ws.zipcode.prototype.soa.next.nites.gdit.com/' xmlns='http://schemas.xmlsoap.org/wsdl/' xmlns:soap='http://schemas.xmlsoap.org/wsdl/soap/' xmlns:tns='http://ws.zipcode.prototype.soa.next.nites.gdit.com/' xmlns:xsd='http://www.w3.org/2001/XMLSchema'>
<types>
  <xs:schema targetNamespace='http://ws.zipcode.prototype.soa.next.nites.gdit.com/' version='1.0' xmlns:tns='http://ws.zipcode.prototype.soa.next.nites.gdit.com/' xmlns:xs='http://www.w3.org/2001/XMLSchema'>
   <xs:element name='getCityNameByZip' type='tns:getCityNameByZip'/>
   <xs:element name='getCityNameByZipResponse' type='tns:getCityNameByZipResponse'/>
   <xs:complexType name='getCityNameByZip'>
    <xs:sequence>
     <xs:element name='arg0' type='xs:string'/>
    </xs:sequence>
   </xs:complexType>
   <xs:complexType name='getCityNameByZipResponse'>
    <xs:sequence>
     <xs:element name='return' type='xs:string'/>
    </xs:sequence>
   </xs:complexType>
  </xs:schema>
</types>
<message name='ZipCodeWS_getCityNameByZip'>
  <part element='tns:getCityNameByZip' name='getCityNameByZip'></part>
</message>
<message name='ZipCodeWS_getCityNameByZipResponse'>
  <part element='tns:getCityNameByZipResponse' name='getCityNameByZipResponse'></part>
</message>
<portType name='ZipCodeWS'>
  <operation name='getCityNameByZip' parameterOrder='getCityNameByZip'>
   <input message='tns:ZipCodeWS_getCityNameByZip'></input>
   <output message='tns:ZipCodeWS_getCityNameByZipResponse'></output>
  </operation>
</portType>
<binding name='ZipCodeWSBinding' type='tns:ZipCodeWS'>
  <soap:binding style='document' transport='http://schemas.xmlsoap.org/soap/http'/>
  <operation name='getCityNameByZip'>
   <soap:operation soapAction=''/>
   <input>
    <soap:body use='literal'/>
   </input>
   <output>
    <soap:body use='literal'/>
   </output>
  </operation>
</binding>
<service name='ZipCodeWSService'>
  <port binding='tns:ZipCodeWSBinding' name='ZipCodeWSPort'>
   <soap:address location='http://localhost:8080/ZipCodeWS/'/>
  </port>
</service>
</definitions>

BPEL:  (the commentted out section not working either)

<bpel:copy>
                <bpel:from>
                    <bpel:literal>
                        <tns:getCityNameByZip xmlns:tns="http://ws.zipcode.prototype.soa.next.nites.gdit.com/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
                              <arg0></arg0>
                        </tns:getCityNameByZip>
                    </bpel:literal>
                </bpel:from>
                <bpel:to variable="zipcodePLRequest" part="getCityNameByZip"></bpel:to>
            </bpel:copy>
            <bpel:copy>
                <bpel:from part="TestPart" variable="myVar"></bpel:from>
                <bpel:to>$zipcodePLRequest.getCityNameByZip/arg0</bpel:to>
                <!--  bpel:to part="getCityNameByZip" variable="zipcodePLRequest">
                    <bpel:query queryLanguage="urn:oasis:names:tc:wsbpel:2.0:sublang:xpath1.0"><![CDATA[arg0]]></bpel:query>
                </bpel:to-->
            </bpel:copy>

[normandesjr]

Try to do this way:

<bpel:from>
    <bpel:literal>
        <tns:getCityNameByZip xmlns:tns="http://ws.zipcode.prototype.soa.next.nites.gdit.com/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
           <arg0 xmlns=""></arg0>
         </tns:getCityNameByZip>
    </bpel:literal>
</bpel:from>

Realize that I add xmlns="" at arg0 parameter. If didn't work, let me know.

Normandes Junior

[jcunanan]

Normandes Junior!!  This worked. Very strange to me why excluding that attribute would not work.  Explanation?

I was using jboss tools with eclipse and not seeing any red so this was driving me a little crazy you know.  I knew it was only like a one line fix!

Thanks again Normandes Junior!

[normandesjr]

Glad for solve.

I don't have sure why this attribute is necessary. I think that could be some limitation of Apache ODE.