Please let me know if my
workaround suggestion helped. I am looking into your issue regarding
our default resolver now, and will update the bug shortly.
--dave
David Goodenough wrote:
That is to say how do I do this using the command sdo-compiler.sh?
Also why does the else below (and that in the default one) use new URL
when surely it should use new URI?
David
On Wednesday 09 July 2008, David Goodenough wrote:
How do I use this in the sdo-compiler?
David
On Wednesday 09 July 2008, David McCann wrote:
Hey David,
To handle this scenario you will need to implement a SchemaResolver
(org.eclipse.persistence.sdo.helper package) that can load the doc based
on the relative path. To do this, you can simply extend the default
resolver we provide
(org.eclipse.persistence.sdo.helper.DefaultSchemaResolver) and override
the resolveSchema(Source, String, String) method to handle this case.
Note that the schema resolver is passed in as a parameter in the define
method on the delegator.
Here's an example of a custom resolver:
public class CyclicSchemaResolver extends DefaultSchemaResolver {
public Source resolveSchema(Source sourceXSD, String namespace,
String schemaLocation) {
if (schemaLocation != null && !schemaLocation.equals("")) {
return super.resolveSchema(sourceXSD, namespace,
schemaLocation);
}
schemaLocation = namespace.equals("uri") ? "Cyclic1.xsd" :
"Cyclic2.xsd";
URL schemaUrl = null;
try {
if (getBaseSchemaLocation() != null) {
// Attempt to resolve the schema location against
the base location
URI baseUri = new URI(getBaseSchemaLocation());
URI resolvedUri = baseUri.resolve(schemaLocation);
schemaUrl = resolvedUri.toURL();
} else {
schemaUrl = new URL(schemaLocation);
}
} catch (Exception e) {
return null;
}
return new StreamSource(schemaUrl.toExternalForm());
}
}
Please let me know if you have any questions.
--Dave
------------------------------------------------------------------------
David Goodenough wrote:
I am trying to run the sdo-compiler against some of the OASIS xsd files
but when I try I get a MalformedURLException when resolving schemas.
This is using 1.0M11.
The first exception I get is:-
[EL Warning]: 2008.07.09 11:41:48.932--Thread(Thread[main,5,main])--An
java.net.MalformedURLException occurred processing referenced schema
with uri
urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-
2 with schemaLocation ../common/UBL-CommonAggregateComponents-2.0.xsd.
[EL Finest]: 2008.07.09
11:41:48.947--Thread(Thread[main,5,main])--java.net.MalformedURLExcepti
on
: no protocol: ../common/UBL-CommonAggregateComponents-2.0.xsd
at java.net.URL.<init>(URL.java:567)
at java.net.URL.<init>(URL.java:464)
at java.net.URL.<init>(URL.java:413)
at
org.eclipse.persistence.sdo.helper.DefaultSchemaResolver.resolveSchema(
De faultSchemaResolver.java:55) at
org.eclipse.persistence.sdo.helper.SchemaResolverWrapper.resolveSchema(
Sc hemaResolverWrapper.java:61) at
org.eclipse.persistence.sdo.helper.SDOTypesGenerator.getReferencedSchem
a( SDOTypesGenerator.java:2056) at
org.eclipse.persistence.sdo.helper.SDOTypesGenerator.getSchema(SDOTypes
Ge nerator.java:2025) at
org.eclipse.persistence.sdo.helper.SDOTypesGenerator.getSchema(SDOTypes
Ge nerator.java:1999) at
org.eclipse.persistence.sdo.helper.SDOTypesGenerator.define(SDOTypesGen
er ator.java:108) at
org.eclipse.persistence.sdo.helper.SDOClassGenerator.generate(SDOClassG
en erator.java:209) at
org.eclipse.persistence.sdo.helper.SDOClassGenerator.generate(SDOClassG
en erator.java:175) at
org.eclipse.persistence.sdo.helper.SDOClassGenerator.main(SDOClassGener
at or.java:111)
Looking at the relevant line in the xsd file, it starts:-
<?xml version="1.0" encoding="UTF-8"?>
<!--
Document Type: Invoice
Generated On: Tue Oct 03 2:26:38 P3 2006
-->
<!-- ===== xsd:schema Element With Namespaces Declarations ===== -->
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
targetNamespace="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2
" xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2"
xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregate
Co mponents-2"
xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComp
on ents-2"
xmlns:udt="urn:un:unece:uncefact:data:specification:UnqualifiedDataType
sS chemaModule:2" xmlns:ccts="urn:un:unece:uncefact:documentation:2"
xmlns:ext="urn:oasis:names:specification:ubl:schema:xsd:CommonExtension
Co mponents-2"
xmlns:qdt="urn:oasis:names:specification:ubl:schema:xsd:QualifiedDataty
pe s-2" elementFormDefault="qualified"
attributeFormDefault="unqualified"
version="2.0">
<!-- ===== Imports ===== -->
<xsd:import
namespace="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregate
Co mponents-2"
schemaLocation="../common/UBL-CommonAggregateComponents-2.0.xsd"/>
and I think it is complaining about schemaLocation.
I guess this is because of the lack of a protocol.
I am using Sun Java 6 on linux, using its default XML code.
Perhaps the code in DefaultSchemaResolver needs to trap this exception
and try adding file:/// to the front of the URL. I do not know whether
this is really a fault with the OASIS xsd file but they have been in
the field for a while and I am sure of XML parsers generally objected
to this it would have been picked up as a problem.
In fact looking at the code, should DefaultSchemaResolver.java line 55
which currently reads:-
schemaUrl = new URL(schemaLocation);
read instead:-
schemaUrl = new URI(schemaLocation).toUrl();
as the javadoc for URI says that it can handle this kind of
specification without a protocol.
David
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--
David
McCann |
Principal Software Engineer | TopLink Product
Oracle
Corporation Canada
45 O'Connor Street, Suite 400
Ottawa, Ontario K1P 1A4
Canada
613.288.4636
613.238.2818 (fax)
|
