If you are using DOMBuilder, you can use DOMBuilder::setEntityResolver,
specifying an instance of a class derived from DOMEntityResolver.
In that class, override
virtual DOMInputSource* resolveEntity
(
const XMLCh* const publicId
, const XMLCh* const systemId
, const XMLCh* const baseURI
) = 0;
returning a new Wrapper4InputSource(new LocalFileInputSource("location
of visor.xsd")) when sysntemId==visor.xsd
Alberto
Roberto Rigamonti wrote:
Good afternoon, I'm always working on the same visor project and I
have some troubles using the entity resolver mechanism. I've tried to
understand its usage searching some examples with Google, but most of
them concern a SAX parser, whereas I'm using a DOM parser. Looking in
the mailing-list archives I've seen some posts on this argument, but
they require the derivation of the XMLEntityResolver class and things
like that, so they're far too complicated for my needs.
What I have to do is the following: I have a schema file in the
executable's directory (e.g. /home/roby/3DVisor/sandbox/bin), let's
call it "visor.xsd". Then I have some temporary XML files placed in
the /tmp directory and created with the following header:
<visor xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:noNamespaceSchemaLocation="visor.xsd">
I have to "dynamically replace" the "visor.xsd" attribute in the XML
file to the correct path of the schema file.
Is there a _simple_ way to do that? I've seen an example on
http://www.onlamp.com/pub/a/onlamp/2005/11/10/xerces_sax.html?page=3
that looks promising (the one using a SimpleEntityResolver), but
regards a SAX parser. Is there a trick to force it to work also for a
DOM parser?
Thanks in advance to anyone willing to help me.
Roberto Rigamonti
