[ http://issues.apache.org/jira/browse/TUSCANY-907?page=all ]
Pete Robbins reopened TUSCANY-907:
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Patch caused other cases (loading schema in the SCA runtime) to fail
> Schema Import is noisy when schemaLocation is an abolute URI
> ------------------------------------------------------------
>
> Key: TUSCANY-907
> URL: http://issues.apache.org/jira/browse/TUSCANY-907
> Project: Tuscany
> Issue Type: Bug
> Components: C++ SDO
> Affects Versions: Java-M1
> Reporter: Caroline Maynard
> Fix For: Cpp-current
>
> Attachments: Tuscany-907.patch
>
>
> See http://pecl.php.net/bugs/bug.php?id=9243.
> SDO for PHP user is importing a schema with import statements like
> <import namespace="http://ping.chip.org/xml/pid";
> schemaLocation="http://ping.chip.org/xml/pid.xsd"/>
> These are unconventional, since the schemaLocation is not usually an absolute
> URI, but they are valid.
> They see a lot (I mean a lot) of warning messages like:
> SDO_DAS_XML::create(http://ping.chip.org/phr/xml/http://ping.chip.org/phr/xml/types.xsd)
> [function.SDO-DAS-XML-create]: failed to open stream:HTTP request failed!
> HTTP/1.1 404 Not Found
> where, as you can see, an invalid URI is being created and used. However the
> schema is read successfully.
> There are potentially quite a few issues here around the handling of libxml
> error messages, but I'll restrict myself to the behaviour of
> SDOSchemaSAX2Parser::startSecondaryParse
> This tries to deal with four different ways to combine the path to the
> current schema with the schemaLocation attribute of the import element.
> Eventually the imported schema is found, but only after URIs like the one in
> the message above are created and used.
> I wasn't too happy with this particular method, so I perhaps went to the
> other extreme with the patch I shall attach, where I let libxml combine the
> two values according to RFC 2396. It works for me, but you may well have
> testcases where it fails, and want to approach the problem some other way.
> Whether or not you like the patch, I think something should be done to avoid
> the flurry of warnings about ill-formed URIs like the above.
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