[jira] [Updated] (XMLSCHEMA-51) Problem with included schemas with attribute group references

["Colm O hEigeartaigh (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/XMLSCHEMA-51?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Colm O hEigeartaigh updated XMLSCHEMA-51:
-----------------------------------------
    Fix Version/s: 2.2.5

> Problem with included schemas with attribute group references
> -------------------------------------------------------------
>
>                 Key: XMLSCHEMA-51
>                 URL: https://issues.apache.org/jira/browse/XMLSCHEMA-51
>             Project: XmlSchema
>          Issue Type: Question
>            Reporter: Fady Moussallam
>            Assignee: Colm O hEigeartaigh
>            Priority: Major
>             Fix For: 2.2.5
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Hello,
> I am using version 2.2.3.
> I have a problem with a combination of included schemas and attribute group references.
> Say you have schemaA including schemaB. schemaB does not have a default namespace, nor a target namespace, since it is meant to be included. It therefore inherits the namespace of the including schema (in this case schemaA).
> The problem arises if schemaB contains markup like this:
> {code}
> <xs:attributeGroup ref="QuantityGroup"/>
>  ...
>  </xs:attributeGroup>
> {code}
> In org.apache.ws.commons.schema.SchemaBuilder#handleAttributeGroupRef the reference QName is obtained with the getRefQName(String pName, Node pNode) method.
> In this method, the namespace is derived using the NodeNamespaceContext.getNamespaceContext(pNode) method. This one in turn determines available namespaces directly from the DOM using PrefixCollector.searchAllPrefixDeclarations(pNode).
> Problem is that from a DOM standpoint schemaB does not contain any namespace declarations. So the reference QName end up having no namespace.
> This seems wrong and creates problems when later on you want to find the referenced group using XmlSchemaCollection#getAttributeGroupByName(QName name) which returns null.
> I can fix my issue in SchemaBuilder#getRefQName by doing this:
> {code}
> ...
> if (offset == -1) {
>  uri = pContext.getNamespaceURI(Constants.DEFAULT_NS_PREFIX);
>  if (Constants.NULL_NS_URI.equals(uri)) {
>  if (currentSchema.getLogicalTargetNamespace().isEmpty()) {
>  return new QName(Constants.NULL_NS_URI, pName);
>  } else {
>  return new QName(currentSchema.getLogicalTargetNamespace(), pName);
>  }
>  }
>  localName = pName;
>  prefix = Constants.DEFAULT_NS_PREFIX;
>  } else {
> ...
> {code}
> But I am not sure if there are any side effects.
> Any opinion or advice on this would be very appreciated.
> Thank you
>  
> Fady
>  
>  
>  
>  



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