RE: XmlSchema error in simple content extension

[Glen Daniels]

Hi John:

I haven't read this in detail yet, but I've got a plane ride from
Seattle to San Francisco this afternoon during which I'll try to take a
look at the problem....

--G 

> -----Original Message-----
> From: John Kaputin [mailto:[EMAIL PROTECTED] 
> Sent: Thursday, September 22, 2005 7:45 AM
> To: general@ws.apache.org
> Subject: XmlSchema error in simple content extension
> 
> Could someone familiar with ws-commons XmlSchema look at this?
> 
> org.apache.ws.commons.schema.XmlSchemaException: No namespace found in
> given base simple content type
>       at
> org.apache.ws.commons.schema.SchemaBuilder.handleSimpleContent
> Extension(SchemaBuilder.java:769)
>       at
> org.apache.ws.commons.schema.SchemaBuilder.handleSimpleContent
> (SchemaBuilder.java:644)
>       at
> org.apache.ws.commons.schema.SchemaBuilder.handleComplexType(S
> chemaBuilder.java:577)
>       at
> org.apache.ws.commons.schema.SchemaBuilder.handleXmlSchemaElem
> ent(SchemaBuilder.java:96)
>       at
> org.apache.ws.commons.schema.XmlSchemaCollection.read(XmlSchem
> aCollection.java:132)
> 
> The test case wsdl is http://www.uddi.org/schema/uddi_v2.xsd
> 
> The problem fragment is:
> ....
> <xsd:complexType name="accessPoint">
>     <xsd:simpleContent>
>         <xsd:extension base="string">
> 
> The problem seems to be in the 
> SchemaBuilder.handleSimpleContentExtension
> method. It throws an exception because it expects the value 
> of attribute
> 'base' to be explicitly prefixed (e.g. base="xsd:string") so 
> it can look up
> the namespace for the prefix.
> 
> if (extEl.hasAttribute("base")) {
>    String name = extEl.getAttribute("base");  <<name = "string"
>    String nsFromEl = Tokenizer.tokenize(name, ":")[0];  <<nsFromEl =
> "string"
>    Object result = schema.namespaces.get(nsFromEl);   <<result = null
> 
> 
> Perhaps it should be similar to the handleSimpleType method's 
> treatment of
> the 'base' attribute ... let 'namespace' default to the empty 
> string "" for
> unprefixed values, which can then be used to look up the 
> default namespace
> for the schema (e.g. xmlns="http://www.w3.org/2001/XMLSchema";)
> 
> if (restrictionEl.hasAttribute("base")) {
>    String name = restrictionEl.getAttribute("base");
>    String[] temp = Tokenizer.tokenize(name, ":");
>    String namespace = "";
> 
>                 if (temp.length != 1) {
>                     namespace = temp[0];  <<use prefix if present,
> otherwise use empty string
>                 }
> 
> 
> regards,
> John Kaputin
> 
> 
>