Re: Generating code from WSDL using WSDL2Java

Mon, 30 Mar 2009 11:55:19 -0700 

Hi,
I believe that we have a tricky bug to fix in Tuscany to deal with plain POJOs following the JAX-WS/JAXB mapping rules. 

For example, there are two classes:

1. j2w.MyData which defines a java bean.
2. j2w.impl.MyInterfaceImpl which is a JAX-WS SEI.

   @WebService
   public class MyInterfaceImpl implements MyInterface {
       @WebMethod
       public MyData update(MyData data) {
           return null;
       }
   }


Running "wsgen" tool will produce the XSD for MyData as follows. Please note 
the targetNamespace is derived from the package name of MyInterfaceImpl 
where the MyData is referenced. This is defined in the JAXB spec 2.1 section 
8.7.1.2.



if @XmlType.namespace() is "##default" && @XmlType.name() is "" and class is 
not annotated with @XmlRootElement, then the {target namespace} of the 
attribute or element to which the property or field, from where this class 
is referenced, is mapped.


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

<xs:schema version="1.0" targetNamespace="http://impl.j2w/"; 
xmlns:tns="http://impl.j2w/"; xmlns:xs="http://www.w3.org/2001/XMLSchema";>


 <xs:element name="update" type="tns:update"/>

 <xs:element name="updateResponse" type="tns:updateResponse"/>

 <xs:complexType name="update">
   <xs:sequence>
     <xs:element name="arg0" type="tns:myData" minOccurs="0"/>
   </xs:sequence>
 </xs:complexType>

 <xs:complexType name="myData">
   <xs:sequence/>
 </xs:complexType>

 <xs:complexType name="updateResponse">
   <xs:sequence>
     <xs:element name="return" type="tns:myData" minOccurs="0"/>
   </xs:sequence>
 </xs:complexType>
</xs:schema>


To implement this rule, Tuscany probably has to find a way to reconcile the 
XSDs with empty namespace into WSDL. There are two possible solutions:



1) Tweak the XSD for MyData to be under the target namespace from the SEI 
and use "xsd:import" to reference it
2) Have "xsd:include" to directly include the MyData XSD. Since the 
MyData.xsd doesn't have a target namespace, it will be added to the document 
where the xsd:include element is declared.


Thanks,
Raymond

From: Vincent Zurczak
Sent: Monday, March 30, 2009 9:21 AM
To: [email protected]
Subject: Re: Generating code from WSDL using WSDL2Java


Hi.


The tutorial shows, among other things, how you can reference a web service 
in an SCA application, starting from the WSDL only.

I thought that was what you wanted to do. Sorry if I made a mistake. :)

Regarding the WSDL you attached below, it is invalid.

I got the same error with Tuscany 1.4. You can try to validate it with 
Eclipse tools, you will see. And this is why you can't use any WSDL2Java 
libraries.

There is an empty import and an XML schema with no target namespace.
I think the version 2.0 M1 fix that (but I'm not sure).

The correct WSDL for your service is :


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

<wsdl:definitions name="CalculatorServiceService" 
targetNamespace="http://server.tuscany.telvent.com/"; 
xmlns:tns="http://server.tuscany.telvent.com/"; 
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"; 
xmlns:xs="http://www.w3.org/2001/XMLSchema"; 
xmlns:SOAP="http://schemas.xmlsoap.org/wsdl/soap/"; 
xmlns:SOAP11="http://schemas.xmlsoap.org/wsdl/soap/";>

 <wsdl:types>

   <xs:schema attributeFormDefault="qualified" 
elementFormDefault="unqualified" 
targetNamespace="http://server.tuscany.telvent.com/"; 
xmlns:xs="http://www.w3.org/2001/XMLSchema";><xs:element 
name="multiply"><xs:complexType><xs:sequence><xs:element minOccurs="0" 
name="arg0" type="xs:double"/><xs:element minOccurs="0" name="arg1" 
type="xs:double"/></xs:sequence></xs:complexType></xs:element><xs:element 
name="divide"><xs:complexType><xs:sequence><xs:element minOccurs="0" 
name="arg0" type="xs:double"/><xs:element minOccurs="0" name="arg1" 
type="xs:double"/></xs:sequence></xs:complexType></xs:element><xs:element 
name="add"><xs:complexType><xs:sequence><xs:element minOccurs="0" 
name="arg0" type="xs:double"/><xs:element minOccurs="0" name="arg1" 
type="xs:double"/></xs:sequence></xs:complexType></xs:element><xs:element 
name="divideResponse"><xs:complexType><xs:sequence><xs:element minOccurs="0" 
name="return" 
type="xs:double"/></xs:sequence></xs:complexType></xs:element><xs:element 
name="subtractResponse"><xs:complexType><xs:sequence><xs:element 
minOccurs="0" name="return" 
type="xs:double"/></xs:sequence></xs:complexType></xs:element><xs:element 
name="subtract"><xs:complexType><xs:sequence><xs:element minOccurs="0" 
name="arg0" type="xs:double"/><xs:element minOccurs="0" name="arg1" 
type="xs:double"/></xs:sequence></xs:complexType></xs:element><xs:element 
name="addResponse"><xs:complexType><xs:sequence><xs:element minOccurs="0" 
name="return" 
type="xs:double"/></xs:sequence></xs:complexType></xs:element><xs:element 
name="getPersona"><xs:complexType/></xs:element><xs:element 
name="multiplyResponse"><xs:complexType><xs:sequence><xs:element 
minOccurs="0" name="return" 
type="xs:double"/></xs:sequence></xs:complexType></xs:element><xs:element 
name="getPersonaResponse"><xs:complexType><xs:sequence><xs:element 
minOccurs="0" name="return" nillable="true" 
type="persona"/></xs:sequence></xs:complexType></xs:element>
<xs:complexType name="persona"><xs:sequence><xs:element minOccurs="0" 
name="altura" type="xs:int"/><xs:element name="edad" 
type="xs:int"/><xs:element minOccurs="0" name="name" 
type="xs:string"/></xs:sequence></xs:complexType>

</xs:schema>
 </wsdl:types>
 <wsdl:message name="multiply">
   <wsdl:part name="multiply" element="tns:multiply">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="divide">
   <wsdl:part name="divide" element="tns:divide">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="add">
   <wsdl:part name="add" element="tns:add">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="divideResponse">
   <wsdl:part name="divideResponse" element="tns:divideResponse">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="subtractResponse">
   <wsdl:part name="subtractResponse" element="tns:subtractResponse">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="subtract">
   <wsdl:part name="subtract" element="tns:subtract">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="addResponse">
   <wsdl:part name="addResponse" element="tns:addResponse">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="getPersona">
   <wsdl:part name="getPersona" element="tns:getPersona">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="multiplyResponse">
   <wsdl:part name="multiplyResponse" element="tns:multiplyResponse">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="getPersonaResponse">
   <wsdl:part name="getPersonaResponse" element="tns:getPersonaResponse">
   </wsdl:part>
 </wsdl:message>
 <wsdl:portType name="CalculatorService">
   <wsdl:operation name="getPersona">
     <wsdl:input message="tns:getPersona">
   </wsdl:input>
     <wsdl:output message="tns:getPersonaResponse">
   </wsdl:output>
   </wsdl:operation>
   <wsdl:operation name="add">
     <wsdl:input message="tns:add">
   </wsdl:input>
     <wsdl:output message="tns:addResponse">
   </wsdl:output>
   </wsdl:operation>
   <wsdl:operation name="subtract">
     <wsdl:input message="tns:subtract">
   </wsdl:input>
     <wsdl:output message="tns:subtractResponse">
   </wsdl:output>
   </wsdl:operation>
   <wsdl:operation name="divide">
     <wsdl:input message="tns:divide">
   </wsdl:input>
     <wsdl:output message="tns:divideResponse">
   </wsdl:output>
   </wsdl:operation>
   <wsdl:operation name="multiply">
     <wsdl:input message="tns:multiply">
   </wsdl:input>
     <wsdl:output message="tns:multiplyResponse">
   </wsdl:output>
   </wsdl:operation>
 </wsdl:portType>

 <wsdl:binding name="CalculatorServiceBinding" 
type="tns:CalculatorService">
   <SOAP:binding style="document" 
transport="http://schemas.xmlsoap.org/soap/http"/>

   <wsdl:operation name="getPersona">
     <SOAP:operation/>
     <wsdl:input>
       <SOAP:body use="literal"/>
     </wsdl:input>
     <wsdl:output>
       <SOAP:body use="literal"/>
     </wsdl:output>
   </wsdl:operation>
   <wsdl:operation name="add">
     <SOAP:operation/>
     <wsdl:input>
       <SOAP:body use="literal"/>
     </wsdl:input>
     <wsdl:output>
       <SOAP:body use="literal"/>
     </wsdl:output>
   </wsdl:operation>
   <wsdl:operation name="subtract">
     <SOAP:operation/>
     <wsdl:input>
       <SOAP:body use="literal"/>
     </wsdl:input>
     <wsdl:output>
       <SOAP:body use="literal"/>
     </wsdl:output>
   </wsdl:operation>
   <wsdl:operation name="divide">
     <SOAP:operation/>
     <wsdl:input>
       <SOAP:body use="literal"/>
     </wsdl:input>
     <wsdl:output>
       <SOAP:body use="literal"/>
     </wsdl:output>
   </wsdl:operation>
   <wsdl:operation name="multiply">
     <SOAP:operation/>
     <wsdl:input>
       <SOAP:body use="literal"/>
     </wsdl:input>
     <wsdl:output>
       <SOAP:body use="literal"/>
     </wsdl:output>
   </wsdl:operation>
 </wsdl:binding>
 <wsdl:service name="CalculatorServiceService">

   <wsdl:port name="CalculatorServicePort" 
binding="tns:CalculatorServiceBinding">
     <SOAP:address 
location="http://192.168.3.15:8085/CalculatorServiceComponent"/>

   </wsdl:port>
 </wsdl:service>
</wsdl:definitions>

And it then should work.

Regards,

               Vincent.




[email protected] a écrit :

Hi.

Tutorial is very interesting but I can not find the specific example for my 
problem. I want to develop a client that connects with the SCA Calculator. 
The example from 
http://wiki.eclipse.org/images/7/72/EclipseCON_2009_SOA_Tutorial_Toward---SCA.pdf 
connects using a RMI binding. This client needs to know the interface from 
the service that it will  be consumed (GlobalWeatherService). It needs the 
same java code in the client side.



I want an independent client that didn't know java code from SCA Calculator. 
You can imagine that I haven't developed the SCA Calculator but  WSDL 
contract is published in internet.
I only knew the WSDL contract generated by Tuscany. But the problem is that 
I have an error when I am using WSDL2Java. Person class can not be found.



Thank you very much

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

<wsdl:definitions name="CalculatorServiceService" 
targetNamespace="http://server.tuscany.telvent.com/"; 
xmlns:tns="http://server.tuscany.telvent.com/"; 
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"; 
xmlns:xs="http://www.w3.org/2001/XMLSchema"; 
xmlns:SOAP="http://schemas.xmlsoap.org/wsdl/soap/"; 
xmlns:SOAP11="http://schemas.xmlsoap.org/wsdl/soap/";>

 <wsdl:types>
   <xs:schema version="1.0" xmlns:xs="http://www.w3.org/2001/XMLSchema";>

<xs:complexType name="persona"><xs:sequence><xs:element minOccurs="0" 
name="altura" type="xs:int"/><xs:element name="edad" 
type="xs:int"/><xs:element minOccurs="0" name="name" 
type="xs:string"/></xs:sequence></xs:complexType>

</xs:schema>

   <xs:schema attributeFormDefault="qualified" 
elementFormDefault="unqualified" 
targetNamespace="http://server.tuscany.telvent.com/"; 
xmlns:xs="http://www.w3.org/2001/XMLSchema";><xs:import/><xs:element 
name="multiply"><xs:complexType><xs:sequence><xs:element minOccurs="0" 
name="arg0" type="xs:double"/><xs:element minOccurs="0" name="arg1" 
type="xs:double"/></xs:sequence></xs:complexType></xs:element><xs:element 
name="divide"><xs:complexType><xs:sequence><xs:element minOccurs="0" 
name="arg0" type="xs:double"/><xs:element minOccurs="0" name="arg1" 
type="xs:double"/></xs:sequence></xs:complexType></xs:element><xs:element 
name="add"><xs:complexType><xs:sequence><xs:element minOccurs="0" 
name="arg0" type="xs:double"/><xs:element minOccurs="0" name="arg1" 
type="xs:double"/></xs:sequence></xs:complexType></xs:element><xs:element 
name="divideResponse"><xs:complexType><xs:sequence><xs:element minOccurs="0" 
name="return" 
type="xs:double"/></xs:sequence></xs:complexType></xs:element><xs:element 
name="subtractResponse"><xs:complexType><xs:sequence><xs:element 
minOccurs="0" name="return" 
type="xs:double"/></xs:sequence></xs:complexType></xs:element><xs:element 
name="subtract"><xs:complexType><xs:sequence><xs:element minOccurs="0" 
name="arg0" type="xs:double"/><xs:element minOccurs="0" name="arg1" 
type="xs:double"/></xs:sequence></xs:complexType></xs:element><xs:element 
name="addResponse"><xs:complexType><xs:sequence><xs:element minOccurs="0" 
name="return" 
type="xs:double"/></xs:sequence></xs:complexType></xs:element><xs:element 
name="getPersona"><xs:complexType/></xs:element><xs:element 
name="multiplyResponse"><xs:complexType><xs:sequence><xs:element 
minOccurs="0" name="return" 
type="xs:double"/></xs:sequence></xs:complexType></xs:element><xs:element 
name="getPersonaResponse"><xs:complexType><xs:sequence><xs:element 
minOccurs="0" name="return" nillable="true" 
type="persona"/></xs:sequence></xs:complexType></xs:element></xs:schema>

 </wsdl:types>
 <wsdl:message name="multiply">
   <wsdl:part name="multiply" element="tns:multiply">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="divide">
   <wsdl:part name="divide" element="tns:divide">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="add">
   <wsdl:part name="add" element="tns:add">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="divideResponse">
   <wsdl:part name="divideResponse" element="tns:divideResponse">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="subtractResponse">
   <wsdl:part name="subtractResponse" element="tns:subtractResponse">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="subtract">
   <wsdl:part name="subtract" element="tns:subtract">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="addResponse">
   <wsdl:part name="addResponse" element="tns:addResponse">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="getPersona">
   <wsdl:part name="getPersona" element="tns:getPersona">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="multiplyResponse">
   <wsdl:part name="multiplyResponse" element="tns:multiplyResponse">
   </wsdl:part>
 </wsdl:message>
 <wsdl:message name="getPersonaResponse">
   <wsdl:part name="getPersonaResponse" element="tns:getPersonaResponse">
   </wsdl:part>
 </wsdl:message>
 <wsdl:portType name="CalculatorService">
   <wsdl:operation name="getPersona">
     <wsdl:input message="tns:getPersona">
   </wsdl:input>
     <wsdl:output message="tns:getPersonaResponse">
   </wsdl:output>
   </wsdl:operation>
   <wsdl:operation name="add">
     <wsdl:input message="tns:add">
   </wsdl:input>
     <wsdl:output message="tns:addResponse">
   </wsdl:output>
   </wsdl:operation>
   <wsdl:operation name="subtract">
     <wsdl:input message="tns:subtract">
   </wsdl:input>
     <wsdl:output message="tns:subtractResponse">
   </wsdl:output>
   </wsdl:operation>
   <wsdl:operation name="divide">
     <wsdl:input message="tns:divide">
   </wsdl:input>
     <wsdl:output message="tns:divideResponse">
   </wsdl:output>
   </wsdl:operation>
   <wsdl:operation name="multiply">
     <wsdl:input message="tns:multiply">
   </wsdl:input>
     <wsdl:output message="tns:multiplyResponse">
   </wsdl:output>
   </wsdl:operation>
 </wsdl:portType>

 <wsdl:binding name="CalculatorServiceBinding" 
type="tns:CalculatorService">
   <SOAP:binding style="document" 
transport="http://schemas.xmlsoap.org/soap/http"/>

   <wsdl:operation name="getPersona">
     <SOAP:operation/>
     <wsdl:input>
       <SOAP:body use="literal"/>
     </wsdl:input>
     <wsdl:output>
       <SOAP:body use="literal"/>
     </wsdl:output>
   </wsdl:operation>
   <wsdl:operation name="add">
     <SOAP:operation/>
     <wsdl:input>
       <SOAP:body use="literal"/>
     </wsdl:input>
     <wsdl:output>
       <SOAP:body use="literal"/>
     </wsdl:output>
   </wsdl:operation>
   <wsdl:operation name="subtract">
     <SOAP:operation/>
     <wsdl:input>
       <SOAP:body use="literal"/>
     </wsdl:input>
     <wsdl:output>
       <SOAP:body use="literal"/>
     </wsdl:output>
   </wsdl:operation>
   <wsdl:operation name="divide">
     <SOAP:operation/>
     <wsdl:input>
       <SOAP:body use="literal"/>
     </wsdl:input>
     <wsdl:output>
       <SOAP:body use="literal"/>
     </wsdl:output>
   </wsdl:operation>
   <wsdl:operation name="multiply">
     <SOAP:operation/>
     <wsdl:input>
       <SOAP:body use="literal"/>
     </wsdl:input>
     <wsdl:output>
       <SOAP:body use="literal"/>
     </wsdl:output>
   </wsdl:operation>
 </wsdl:binding>
 <wsdl:service name="CalculatorServiceService">

   <wsdl:port name="CalculatorServicePort" 
binding="tns:CalculatorServiceBinding">
     <SOAP:address 
location="http://192.168.3.15:8085/CalculatorServiceComponent"/>

   </wsdl:port>
 </wsdl:service>
</wsdl:definitions>


Un saludo.
Santiago Miguel Aranda Rojas
Telvent Interactiva
Extension: 35999


Vincent Zurczak <[email protected]>
Vincent Zurczak
30/03/2009 15:44
Por favor, responda a user
Para: [email protected]
cc:

Asunto: Re: Generating code from WSDL using WSDL2Java




Hi.


The Eclipse SCA Tools provide some features to allow you to simply call a 
web service in an SCA application.
It does not work with specific message structures, but your case seems 
pretty simple and it should work without any problem.



Basically, it generates you a WS client and then cleans up the code to 
remove all the unrequired elements.
This approach has already been tested with Tuscany 1.4 and it was even part 
of the SOA tutorial that was presented last week at EclipseCON.


You can find an example on the SCA Tools wiki [0].

The tutorial itself is available here [1]. Check the pages 9 and 10 in 
particular.



It shows in details how you can call a web service from an SCA application 
in few clicks (no need to create another SCA application).
There will be another tutorial soon on the STP wiki, to show how you can use 
JAX-B for more complex referenced web services.


Regards,

                  Vincent Zurczak.



[0] : http://wiki.eclipse.org/STP/SCA_Component

[1] : 
http://wiki.eclipse.org/images/7/72/EclipseCON_2009_SOA_Tutorial_Toward---SCA.pdf





[email protected] a écrit :


I have running Calculator sample included in apache-tuscany-sca-all-2.0-M1. 
I have added a new component to this composite service. This is called 
GetPersonaService. It only has a method "getPersona" that returns an object 
"Person". It is a complex type with three attributes , age, name, height.  I 
am publishing this component with my CalculatorService like Web Service.




  <component name="CalculatorServiceComponent">

              <implementation.java 
class="com.telvent.tuscany.server.CalculatorServiceImpl"/>


      <service name="CalculatorService">

          <binding.ws 
uri="http://localhost:8085/CalculatorServiceComponent"/>

      </service>

       <reference name="getPersonaService" 
target="GetPersonaServiceComponent"/>

   </component>


  <component name="GetPersonaServiceComponent">

      <implementation.java 
class="com.telvent.tuscany.server.GetPersonaServiceImpl"/>

  </component>
...


I have done another little SCA application that is connecting to Web Service 
and using its funcionality. It works. I mean I can access to "getPersona" 
method through its WebService. Problem is client application need to know 
Persona class. It is necessary to have a copy of "Person.java" in the new 
bundle.


  <component name="CalculatorClient">

              <implementation.java 
class="com.telvent.tuscany.server.CalculatorClient"/>

      <reference name="calculatorService">

              <binding.ws 
uri="http://localhost:8085/CalculatorServiceComponent"/>

      </reference>
  </component>



But I want to connect to the Web service using a little client application 
that is not SCA. I mean it  haven´t developed using Tuscany. I followed this 
Steps.


* I ran SCA CalculatorService.
* I stored generated WSDL .

* I am trying generate client code using WSDL2Java but I obtain this 
error --> org.apache.axis2.SchemaCompiler findClassName.  Type persona 
missing!



When I run this client (with this autogenerated code) I can acess to methods 
that return primitive types values (int, double... add method for example). 
But the getPersona method that return a complex type Person is not working. 
I have seen that autogenerated code does not contain code for recovering of 
age, name, height attributes.


What can I do?

Thanks in advance

Un saludo.
Santiago Miguel Aranda Rojas
Telvent Interactiva
Extension: 35999



--
Vincent Zurczak
EBM WebSourcing

+33 (0) 4 38 12 16 77 






















					Reply via email to