MQSeries.net :: View topic - Error passing parameters to webservices' method, SOAP nodes

gilberthg · Posted: Thu May 03, 2012 9:08 am Post subject:

Hi Gurus

I have a problem passing parameters to webservices' method, using SOAP nodes , any idea?

The situation is this:

1- WMBroker 8 . I created an aplication starting with a WSDL

The wsdl is from a site that offers webservices to do client testing for example. The service I'll use is for getting whois information about websites.

The WSDL is :

<?xml version="1.0" encoding="utf-8"?>
<definitions name="whois" targetNamespace="http://www.webservicex.net" xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:http="http://www.w3.org/TR/html4/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:s="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://www.webservicex.net" xmlns:wsam="http://www.w3.org/2007/05/addressing/metadata" xmlns:wsp="http://www.w3.org/ns/ws-policy" xmlns:wsp1_2="http://schemas.xmlsoap.org/ws/2004/09/policy" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<documentation>
<appinfo source="WMQI_APPINFO">
<MRWSDLAppInfo imported="true">
<binding hasEncoding="false" imported="true" name="whoisSoap" originalBindingStyle="document"/>
</MRWSDLAppInfo>
</appinfo>
</documentation>

<types>
<s:schema>
<s:import namespace="http://www.webservicex.net" schemaLocation="RemoteFiles/net/webservicex/www/whois.xsd"/>
</s:schema>
</types>
<message name="GetWhoISSoapIn">
<part element="tns:GetWhoIS" name="parameters"/>
</message>
<message name="GetWhoISSoapOut">
<part element="tns:GetWhoISResponse" name="parameters"/>
</message>

<portType name="whoisSoap">
<operation name="GetWhoIS">
<input message="tns:GetWhoISSoapIn"/>
<output message="tns:GetWhoISSoapOut"/>
</operation>
</portType>

<binding name="whoisSoap" type="tns:whoisSoap">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http"/>
<operation name="GetWhoIS">
<soap:operation soapAction="http://www.webservicex.net/GetWhoIS" style="document"/>
<input>
<soap:body use="literal"/>
</input>
<output>
<soap:body use="literal"/>
</output>
</operation>
</binding>

<service name="whois">
<port binding="tns:whoisSoap" name="whoisSoap">
<soap:address location="http://www.webservicex.net/whois.asmx"/>
</port>

</service>

</definitions>

1.5 - The additional XSD is :

<?xml version="1.0" encoding="UTF-8"?>

<s:schema elementFormDefault="qualified" targetNamespace="http://www.webservicex.net" version="1.0" xmlns:tns="http://www.webservicex.net" xmlns:s="http://www.w3.org/2001/XMLSchema" xmlns:ibmSchExtn="http://www.ibm.com/schema/extensions" >

<s:element name="GetWhoIS">
<s:complexType>
<s:sequence>
<s:element minOccurs="0" maxOccurs="1" name="HostName" type="s:string"/>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="GetWhoISResponse">
<s:complexType>
<s:sequence>
<s:element minOccurs="0" maxOccurs="1" name="GetWhoISResult" type="s:string"/>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="string" nillable="true" type="s:string"/>

</s:schema>

2- After I created an MQ Input NODE, the output of this is going to a compute node, previous to the subflow just generated in 1.

So we have, an MQ Input node, a Compute Node , and then the subflow generated from the WSDL.

3- The example message I'm sending to the MQ Queque is ( very simple ):

<?xml version="1.0" encoding="utf-8"?>
<whois>
<localElement>
<HostName>
www.google.com
</HostName>
</localElement>
</whois>

4- The Compute node logic is ( again, very simple ):

DECLARE ns NAMESPACE 'http://www.webservicex.net/';

CREATE COMPUTE MODULE MyFlow_Compute
CREATE FUNCTION Main() RETURNS BOOLEAN
BEGIN

SET OutputRoot.XMLNSC.ns:GetWhoIs.HostName = InputRoot.XMLNSC.whois.localElement.HostName;

RETURN TRUE;
END;

END MODULE;

4- The error I'm getting is :

HTTP/1.1 500 Internal Server Error
Cache-Control: private
Content-Length: 576
Content-Type: text/xml; charset=utf-8
Server: Microsoft-IIS/7.0
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Thu, 03 May 2012 16:28:45 GMT

<SOAP_Domain_Msg xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><Context operation="GetWhoIS" operationType="UNKNOWN" portType="whoisSoap" portTypeNamespace="http://www.webservicex.net" port="whoisSoap" service="whois" fileName="whois.wsdl"><SOAP_Version>1.1</SOAP_Version><Namespace xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"/><_XmlDeclaration Version="1.0" Encoding="utf-8"/></Context><Header/><Body><soap:Fault><faultcode>soap:Server</faultcode><faultstring>System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.ArgumentNullException: Value cannot be null.
at whois.whois.GetWhoIS(String HostName)
--- End of inner exception stack trace ---</faultstring><detail/></soap:Fault></Body></SOAP_Domain_Msg>

5- Please give me any advice, because I don't know where to search for the problem.

I developed another similar webservice, for a simple calculator java webservice, in glassfish local to my box, and it worked smooth ....

I look for the 2 wsdl and they are very similar in structure ...

thanks!

Gilberth