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Posted to j-dev@xerces.apache.org by "Michael Glavassevich (Jira)" <xe...@xml.apache.org> on 2022/02/12 01:44:00 UTC
[jira] [Resolved] (XERCESJ-1739) EntityResolver is not invoked for xsi:schemaLocation attribute
[ https://issues.apache.org/jira/browse/XERCESJ-1739?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Glavassevich resolved XERCESJ-1739.
-------------------------------------------
Resolution: Invalid
This is working as designed. The JAXP spec requires this behaviour. If you want XML schema documents to be loaded from xsi:schemaLocation attributes in the instance document, you need to use this method: https://xerces.apache.org/xerces2-j/javadocs/api/javax/xml/validation/SchemaFactory.html#newSchema() instead for creating the Schema object.
> EntityResolver is not invoked for xsi:schemaLocation attribute
> --------------------------------------------------------------
>
> Key: XERCESJ-1739
> URL: https://issues.apache.org/jira/browse/XERCESJ-1739
> Project: Xerces2-J
> Issue Type: Bug
> Components: JAXP (javax.xml.validation)
> Affects Versions: 2.12.1
> Reporter: Yasir Bajwa
> Priority: Minor
>
> setEntityResolver on SAXParser is not being called to resolve xsi:schemaLocation.
> Example:
> class DummyResolver implements EntityResolver {
> @Override
> public InputSource resolveEntity(String publicId, String systemId) throws SAXException
> { throw new SAXException("Access denied."); }
> }
> // main()
> // Path schemaPath ...
> // Path dataPath ...
> SchemaFactory schemaFactory = SchemaFactory.newInstance(
> "[http://www.w3.org/XML/XMLSchema/v1.1]");
> StreamSource schemaSource = new StreamSource(schemaPath.toFile());
> Schema schema = schemaFactory.newSchema(schemaSource);
> SAXParserFactory spf = SAXParserFactory.newInstance();
> spf.setSchema(schema);
> spf.setNamespaceAware(true);
> SAXParser sp = spf.newSAXParser();
>
> XMLReader parser = sp.getXMLReader();
> //parser.setErrorHandler(new SAXErrorHandler());
> //parser.setContentHandler(new TestHandler());
> parser.setEntityResolver( new DummyResolver());
> InputSource is = new InputSource(new FileInputStream(dataPath.toFile()));
> parser.parse(is);
>
> Schema (i.e. the file 'schemaPath' variable references in the code above)
> <?xml version="1.0" encoding="UTF-8" ?>
> <xs:schema
> xmlns:xs="[http://www.w3.org/2001/XMLSchema]"
> >
> <!-- ROOT ELEMENT -->
> <xs:element name="SiebelMessage">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="CaseNum" maxOccurs="7" type="xs:string" />
> <xs:any minOccurs="0" />
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> </xs:schema>
>
> fod.xsd:
> <?xml version="1.0" encoding="UTF-8" ?>
> <xs:schema
> xmlns:xs="[http://www.w3.org/2001/XMLSchema]"
> xmlns="[http://intra.tpon.gov.on.ca/fod]"
> targetNamespace="[http://intra.tpon.gov.on.ca/fod]"
> >
> <xs:element name="testElement" type="xs:integer" />
> </xs:schema>
>
> Instance:
> <?xml version="1.0" encoding="UTF-8" ?>
> <SiebelMessage
> xmlns:xsi="[http://www.w3.org/2001/XMLSchema-instance]"
> xmlns:fod="[http://intra.fod.gov.on.ca|http://intra.fod.gov.on.ca/]"
> xsi:schemaLocation="[http://intra.fod.gov.on.ca|http://intra.fod.gov.on.ca/] fod.xsd"
> >
> <CaseNum>1234</CaseNum>
> <CaseNum>1234</CaseNum>
> <CaseNum>1234</CaseNum>
> <fod:testElement>123</fod:testElement>
> </SiebelMessage>
>
> Result:
> Exception in thread "main" org.xml.sax.SAXException: Error: URI=[[file:///C:/tpon/fod/schema/xerces_tests/test1/input.xml]] Line=12: cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'fod:testElement'.
>
> Expected result was for xsi:schemaLocation to try resolve the fod namespace and call entity resolver to get the fod.xsd schema docment.
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