Importing xsd into wsdl

Question

This is my current configuration:

XSD

<?xml version="1.0" encoding="UTF-8"?> <xsd:schema xmlns="http://stock.com/schemas/services/stock"     xmlns:tns="http://stock.com/schemas/services/stock"  xmlns:xsd="http://www.w3.org/2001/XMLSchema"   elementFormDefault="qualified"  targetNamespace="http://stock.com/schemas/services/stock">  <xsd:element name="Stock">     <xsd:complexType>         <xsd:sequence>             <xsd:element name="ticker" nillable="true" type="xsd:string"/>             <xsd:element maxOccurs="unbounded" minOccurs="0" name="quotes" nillable="true" type="Quote"/>         </xsd:sequence>     </xsd:complexType> </xsd:element>  <xsd:complexType name="Quote">     ........ </xsd:complexType> ....... <xsd:element name="gethighBetaStockResponse">     <xsd:complexType>         <xsd:sequence>             <xsd:element name="stock" ref="Stock" minOccurs="1" maxOccurs="unbounded"/>         </xsd:sequence>     </xsd:complexType> </xsd:element> 

WSDL

<?xml version="1.0" encoding="UTF-8"?><definitions targetNamespace="http://stock.com/schemas/services/stock/wsdl"     .....xmlns:external="http://stock.com/schemas/services/stock" <import namespace="http://stock.com/schemas/services/stock" location="Stock.xsd" /> <message name="getStockQuoteResp">     <part name="parameters" element="external:getStockQuoteResponse" /> </message> 

However,the moment ref="Stock" is changed to type="Stock",the wsdl2java starts giving Type {http://stock.com/schemas/services/stock}Stock is referenced but not defined.

Somehow it seems a clash between wsdl and xsd imports - but I just cant resolve it.Help is appreciated.

Answer 1

You have a couple of problems here.

First, the XSD has an issue where an element is both named or referenced; in your case should be referenced.

Change:

<xsd:element name="stock" ref="Stock" minOccurs="1" maxOccurs="unbounded"/>  

To:

<xsd:element name="stock" type="Stock" minOccurs="1" maxOccurs="unbounded"/>  

And:

• Remove the declaration of the global element Stock
• Create a complex type declaration for a type named Stock

So:

<xsd:element name="Stock">     <xsd:complexType> 

To:

<xsd:complexType name="Stock"> 

Make sure you fix the xml closing tags.

The second problem is that the correct way to reference an external XSD is to use XSD schema with import/include within a wsdl:types element. wsdl:import is reserved to referencing other WSDL files. More information is available by going through the WS-I specification, section WSDL and Schema Import. Based on WS-I, your case would be:

INCORRECT: (the way you showed it)

<?xml version="1.0" encoding="UTF-8"?> <definitions targetNamespace="http://stock.com/schemas/services/stock/wsdl"     .....xmlns:external="http://stock.com/schemas/services/stock"     <import namespace="http://stock.com/schemas/services/stock" location="Stock.xsd" />     <message name="getStockQuoteResp">         <part name="parameters" element="external:getStockQuoteResponse" />     </message> </definitions> 

CORRECT:

<?xml version="1.0" encoding="UTF-8"?> <definitions targetNamespace="http://stock.com/schemas/services/stock/wsdl"     .....xmlns:external="http://stock.com/schemas/services/stock"     <types>         <schema xmlns="http://www.w3.org/2001/XMLSchema">             <import namespace="http://stock.com/schemas/services/stock" schemaLocation="Stock.xsd" />                      </schema>     </types>     <message name="getStockQuoteResp">         <part name="parameters" element="external:getStockQuoteResponse" />     </message> </definitions> 

SOME processors may support both syntaxes. The XSD you put out shows issues, make sure you first validate the XSD.

It would be better if you go the WS-I way when it comes to WSDL authoring.

Other issues may be related to the use of relative vs. absolute URIs in locating external content.