Hi Liam,

Thanks for the helpful suggestions. After trying everything you suggested and then also trying a few of Saxon’s configuration options, unfortunately I’m still having the same problem. Trying a shell script that contains the following:

MAIN="$( cd -P "$(dirname "$FILE")/../basex" && pwd )"

CP=$MAIN/BaseX.jar:$MAIN/lib/custom/*:$MAIN/lib/*:$CLASSPATH

echo 1 Saxon

java -cp "$CP" net.sf.saxon.Transform -s:input1.xml -xsl:transform.xsl -catalog:schemas/catalog.xml

echo 2 BaseX transform

java -cp "$CP" org.basex.BaseX -q"(# db:catfile schemas/catalog.xml #) (# db:intparse false #) (# db:dtd true #) (# db:chop false #) { xslt:transform('input1.xml', 'transform.xsl') }"

echo 3 BaseX transform with Saxon features configured

java -Dhttp://saxon.sf.net/feature/entityResolverClass=org.apache.xml.resolver.tools.CatalogResolver -Dhttp://saxon.sf.net/feature/uriResolverClass=org.apache.xml.resolver.tools.CatalogResolver -cp "$CP" org.basex.BaseX -q"(# db:catfile schemas/catalog.xml #) (# db:intparse false #) (# db:dtd true #) (# db:chop false #) { xslt:transform('input1.xml', 'transform.xsl') }"

echo 4 BaseX doc to show XML Catalog is configured correctly to parse XML

java -cp "$CP" org.basex.BaseX -q"(# db:catfile schemas/catalog.xml #) (# db:intparse false #) (# db:dtd true #) (# db:chop false #) { doc('input1.xml') }"

The classpath includes BaseX 9.3.3, Saxon HE 9.9, xml-resolver-1.2.jar, and CatalogManager.properties

1. The transformation works in Saxon and uses the catalog file to locate the DTD when parsing the XML input1.xml.
2. The BaseX xslt:transform should work the same as #1, but fails because the DTD cannot be read
3. Adding Saxon configuration for Entity Resolver Class and URI Resolve Class did not help
4. Simply parsing the XML using doc() in BaseX with the same configuration shows that the XML catalog is configured correctly within BaseX

Using strace -f, the log shows that BaseX xslt:transform is reading the catalog.xml file from disk, and then is trying (and failing) to read the DTD from the non-working URIL.

This might be a bug in xslt:transform, so the workaround of using a regular expression replace on the DOCTYPE system URI is probably the practical solution.

Many thanks,

Vincent

_____________________________________________

Vincent M. Lizzi

Head of Information Standards | Taylor & Francis Group

vincent.lizzi@taylorandfrancis.com

Information Classification: General

From: Liam R. E. Quin <liam@fromoldbooks.org>
Sent: Thursday, July 9, 2020 12:55 PM
To: Lizzi, Vincent <Vincent.Lizzi@taylorandfrancis.com>; BaseX <basex-talk@mailman.uni-konstanz.de>
Subject: Re: [basex-talk] xslt:transform function not working with XML Catalog

On Thu, 2020-07-09 at 04:32 +0000, Lizzi, Vincent wrote:
> Hi Liam,
>
> Thanks for the reply and suggestions. Based on your suggestion I
> tried pragmas and strace, and had another go at
> CatalogManager.properties, but they've not had any effect.

use, strace -f java.... >& hugelogfile.txt
and after, grep -i catalogmanager.properties hugelogfile.txt
and you should see where it's looking. If it doesn't look for that
file, check to see if it opened the jar file containing the resolver.

If you're running BaseX from Oxygen, Oxygen needs to have it in its
classpath too i think.

Also, of course, see if the catalog file is actually being opened!

I actually wrote some of the code in BaseX that makes XML catalogs work
with transform(), or provided a rough draft that Christian improved :),
and debugging it was... interesting.

I'd also try an absolute path for the catalog file - if you are using
the BaseX server, relative paths will be relative to the directory
(folder) where the server itself is running. (and of course the server
needs the resolver in its classpath).

Messages from the catalog manager seem to go (oddly) to standard
output interleaved with any XML output.

The command-line i used for testing this (well, one of the tests) was,

R=$HOME/lib/xmlcatalog/xml-commons-resolver-1.2/resolver.jar
MAIN=$HOME/packages/basex/basex

java -Dxml.catalog.files=saxlog.xml -D'
http://saxon.sf.net/feature/uriResolverClass=org.apache.xml.resolver.tools.CatalogResolver'
-cp
$R/resolver.jar:/home/lee/packages/basex/basex/BaseX.jar:$MAIN/lib/cust
om/*:$MAIN/lib/*: org.basex.BaseX try.xq

(Saxon was in $MAIN)

>
--
Liam Quin, https://www.delightfulcomputing.com/
Available for XML/Document/Information Architecture/XSLT/
XSL/XQuery/Web/Text Processing/A11Y training, work & consulting.
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