This isn't looking good for me. Tests which previously worked are now
failing with :

MSVCRTD! 00239060()
commonj::sdo::SAX2Parser::parse_twice(const char * 0x00000000) line 436 + 17
bytes
commonj::sdo::SDOSchemaSAX2Parser::parse(const char * 0x00000000) line 1316
+ 17 bytes
commonj::sdo::ParserErrorSetter::parseIfNot(const void * 0x01a8cad0,
unsigned char 0x00, const void * 0x00000000) line 554 + 17 bytes
commonj::sdo::XSDHelperImpl::defineFile(const char * 0x01a8cad0, unsigned
char 0x00) line 83 + 21 bytes

This is probably because the schema is specified as a Windows-style
filespec: C:\path\to\the.xsd. It would probably work with your changes if
the location was a valid URI, so that xmlBuildURI() returns a valid URI, but
I think the code should work in either case.

On 03/01/07, Geoff Winn (JIRA) <[email protected]> wrote:


     [
https://issues.apache.org/jira/browse/TUSCANY-990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel]

Geoff Winn resolved TUSCANY-990.
--------------------------------

       Resolution: Fixed
    Fix Version/s: Cpp-current

Patch applied.

The standard tests now produce just 5 I/O warnings about failing to load
an external entity.

> Avoid duplicated/infinite loading
> ---------------------------------
>
>                 Key: TUSCANY-990
>                 URL: https://issues.apache.org/jira/browse/TUSCANY-990
>             Project: Tuscany
>          Issue Type: Improvement
>          Components: C++ SDO
>    Affects Versions: Cpp-current
>            Reporter: Yang ZHONG
>             Fix For: Cpp-current
>
>         Attachments: AvoidInfiniteLoading.990, AvoidInfiniteLoading.990
>
>
> While working on http://issues.apache.org/jira/browse/TUSCANY-907
> I've observed duplicated XSD loading. It could be infinite loading. I
might have a way to avoid that.
> http://pecl.php.net/bugs/bug.php?id=9243
> has the Test Case:
>     1. http://ping.chip.org/phr/xml/insurance.xsd imports
http://ping.chip.org/phr/xml/types.xsd
>     2. http://ping.chip.org/phr/xml/insurance.xsd imports
http://ping.chip.org/phr/xml/contact.xsd which also imports
http://ping.chip.org/phr/xml/types.xsd
> I've observed http://ping.chip.org/phr/xml/types.xsd is loaded/parsed
multiple times during loading http://ping.chip.org/phr/xml/insurance.xsd
> That impacts performance, especially types.xsd is remote.
> More deadly, that may cause infinite loading or stack overflow.
> Imagine A imports B which imports A, or X imports Y which imports Z
which imports X.
> We can have a LoadingContext/ResourceSet to cache loaded/parsed
resources, and reuse parsing results if a location/URI has been
loaded/parsed already.
> 3-1. The LoadingContext/ResourceSet can be a Thread Local
> 3-2. The LoadingContext/ResourceSet can be explicitly passed into each
parser
> 3-3. Currently ParserErrorSetter is explicitly passed into each parser,
which can host the LoadingContext/ResourceSet
> Above has been discussed on thread
http://www.mail-archive.com/tuscany-dev%40ws.apache.org/msg11793.html
> and Caroline has also requested this improvement (
http://www.mail-archive.com/tuscany-dev%40ws.apache.org/msg11839.html)

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Caroline

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