How to extract include and import from schema

[Krishna Gopal Binyala <kg...@gmail.com>]

Hello,
 I am using xerces, framework for Schema parsing, i need to extract
<xsd:include> and <xsd:import>  from the schema and manipulate the
schemaLocation from.

I am XSModel for this, but not able to retrieve include and import from schema

How it can be achieved. ???

Thanks,

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Re: How to extract include and import from schema

[Stanimir Stamenkov <s7...@netscape.net>]

Wed, 7 Jan 2009 11:00:05 +0530, /Krishna Gopal Binyala/:

>  I am using xerces, framework for Schema parsing, i need to extract 
> <xsd:include> and <xsd:import>  from the schema and manipulate the 
> schemaLocation from.
> 
> I am XSModel for this, but not able to retrieve include and import from schema
> 
> How it can be achieved. ???

May be not exactly what you want but you may iterate over the 
XSModel.namespaceItems [1], then for each observe its 
XSNamespaceItem.documentLocations [2].

Alternatively you may parse the documents in a straightforward 
fashion.  Using SAX you could memory and speed effectively break 
parsing for each location right after encountering the first 
non-(include | import | redefine | annotation) [3] element, throwing 
a custom SAXException from withing your ContentHandler code and 
handling it explicitly where you invoke the parser.

Using the later doesn't exclude your possible need of the XSModel 
already built.  I've used both approaches - separately and in 
conjunction to build an augmented XML Schema model with info 
specific to my processing.

[1] 
<http://xerces.apache.org/xerces2-j/javadocs/xs/org/apache/xerces/xs/XSModel.html#getNamespaceItems()>
[2] 
<http://xerces.apache.org/xerces2-j/javadocs/xs/org/apache/xerces/xs/XSNamespaceItem.html#getDocumentLocations()>
[3] <http://www.w3.org/TR/xmlschema-1/#declare-schema>

-- 
Stanimir

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Re: How to extract include and import from schema

[Michael Glavassevich <mr...@ca.ibm.com>]

"Krishna Gopal Binyala" <kg...@gmail.com> wrote on 01/07/2009 12:30:05
AM:

> Hello,
>  I am using xerces, framework for Schema parsing, i need to extract
> <xsd:include> and <xsd:import>  from the schema and manipulate the
> schemaLocation from.
>
> I am XSModel for this, but not able to retrieve include and import from
schema
>
> How it can be achieved. ???

You can't. XSModel was not designed for this purpose. See recent discussion
in the mailing list archives [1] for more info.

> Thanks,
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: j-users-unsubscribe@xerces.apache.org
> For additional commands, e-mail: j-users-help@xerces.apache.org

Thanks.

[1] http://markmail.org/message/x3fwoet6l7co4zbj

Michael Glavassevich
XML Parser Development
IBM Toronto Lab
E-mail: mrglavas@ca.ibm.com
E-mail: mrglavas@apache.org