JAXB and EntityResolver

https://stackoverflow.com/questions/12196646

29-06-2021
|

Question

Ok so here is the deal. I have an xml file starting like this:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ns3:rosApplicationDocument xmlns:ns2="http://ereg.egov.bg/segment/0009-000013" xmlns:ns3="http://ereg.egov.bg/segment/0009-900001" xmlns:ns4="http://ereg.egov.bg/segment/0009-000022">

And the xsd starting like that:

<?xml version="1.0" encoding="utf-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    targetNamespace="http://ereg.egov.bg/segment/0009-900001" xmlns="http://ereg.egov.bg/segment/0009-900001"

xmlns:dtn="http://ereg.egov.bg/value/0008-000007" xmlns:emad="http://ereg.egov.bg/value/0008-000036"
xmlns:aisuri="http://ereg.egov.bg/value/0008-000039" xmlns:ssu="http://ereg.egov.bg/value/0008-000077"


xmlns:dtu="http://ereg.egov.bg/segment/0009-000003" xmlns:ebd="http://ereg.egov.bg/segment/0009-000013"
xmlns:rou="http://ereg.egov.bg/segment/0009-000022" xmlns:idu="http://ereg.egov.bg/segment/0009-000046"
xmlns:eovau="http://ereg.egov.bg/segment/0009-000051" xmlns:easu="http://ereg.egov.bg/segment/0009-000091"
xmlns:ss="http://www.bulsi.bg/egov/ServiceSupplier" elementFormDefault="qualified">

<xsd:import namespace="http://www.bulsi.bg/egov/ServiceSupplier"
    schemaLocation="ServiceSupplierType.xsd" />

<xsd:import namespace="http://ereg.egov.bg/value/0008-000007"
    schemaLocation="DocumentTypeName-0008-000007.xsd" />
<xsd:import namespace="http://ereg.egov.bg/value/0008-000036"
    schemaLocation="EmailAddress-0008-000036.xsd" />
<xsd:import namespace="http://ereg.egov.bg/value/0008-000039"
    schemaLocation="AISURI-0008-000039.xsd" />
<xsd:import namespace="http://ereg.egov.bg/value/0008-000077"
    schemaLocation="SUNAUServiceURI-0008-000077.xsd" />

<xsd:import namespace="http://ereg.egov.bg/segment/0009-000003"
    schemaLocation="DocumentTypeURI-0009-000003.xsd" />
<xsd:import namespace="http://ereg.egov.bg/segment/0009-000013"
    schemaLocation="EntityBasicData-0009-000013.xsd" />
<xsd:import namespace="http://ereg.egov.bg/segment/0009-000022"
    schemaLocation="RegisterObjectURI-0009-000022.xsd" />
<xsd:import namespace="http://ereg.egov.bg/segment/0009-000046"
    schemaLocation="InitiatingDocumentURI-0009-000046.xsd" />
<xsd:import namespace="http://ereg.egov.bg/segment/0009-000051"
    schemaLocation="EditorOrVisualizerApplicationURI-0009-000022.xsd" />
<xsd:import namespace="http://ereg.egov.bg/segment/0009-000091"
    schemaLocation="ElectronicAdministrativeServiceURI-0009-000091.xsd" />

<!-- <xsd:key name="serviceID"> <xsd:selector xpath="RosApplicationDocument/Enclosures/SimpleServiceEnclosure"/> 
    <xsd:field xpath="@id"/> </xsd:key> <xsd:keyref name="serviceIDREF" refer="serviceID"> 
    <xsd:selector xpath="RosApplicationDocument/Enclosures/ComplexServiceEnclosure/InitialServices/InitialService/InitialService" 
    /> <xsd:field xpath="@ref"/> </xsd:keyref> -->

<xsd:element name="RosApplicationDocument" type="RosApplicationDocument" />

And the unmarshalling :

JAXBContext context = JAXBContext.newInstance(c);
            Unmarshaller um = context.createUnmarshaller();
            if (c.equals(RosApplicationDocument.class)) {
                SchemaFactory schemaFactory = SchemaFactory
                        .newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
                Schema schema = schemaFactory.newSchema(new File(pathToXSD));
                um.setSchema(schema);
                RosApplicationDocument document = (RosApplicationDocument) um
                        .unmarshal(getSource(pathToFile));
                RosApplicationDocumentFactory.removeCDATAFromSegments(document);
                return document;
            }

public static SAXSource getSource(String pathToFile) {
        try {
            SAXParserFactory parserFactory = SAXParserFactory.newInstance();
            parserFactory.setNamespaceAware(true);
            parserFactory.setValidating(true);
            SAXParser saxParser = parserFactory.newSAXParser();
            XMLReader xmlReader = saxParser.getXMLReader();
            xmlReader
                    .setEntityResolver(new RosApplicationDocumentEntityResolver());
            InputSource inSrc = new InputSource(new FileReader(pathToFile));
            return new SAXSource(xmlReader, inSrc);
        } catch (SAXException e) {
            e.printStackTrace();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (ParserConfigurationException e) {
            e.printStackTrace();
        }

        return null;
    }

Why do i get this exception : [org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of element 'ns3:rosApplicationDocument'.]

Edit:

Here is the LSResourceResolver:

public class MyLSResourceResolver implements LSResourceResolver {

    @Override
    public LSInput resolveResource(String type, String namespaceURI,
            String publicId, String systemId, String baseURI) {
        System.out.println(publicId);
        System.out.println(systemId);
        System.out.println(baseURI);
        System.out.println(namespaceURI);
        System.out.println(type);
        return null;
    }

}

i set it to the factory like : schemaFactory.setResourceResolver(new MyLSResourceResolver());

And here is the output of the console :

null
ServiceSupplierType.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/appl_v3.xsd
http://www.bulsi.bg/egov/ServiceSupplier
http://www.w3.org/2001/XMLSchema
null
EmailAddress-0008-000036.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/ServiceSupplierType.xsd
http://ereg.egov.bg/value/0008-000036
http://www.w3.org/2001/XMLSchema
null
EntityBasicData-0009-000013.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/ServiceSupplierType.xsd
http://ereg.egov.bg/segment/0009-000013
http://www.w3.org/2001/XMLSchema
null
EntityName-0008-000029.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/EntityBasicData-0009-000013.xsd
http://ereg.egov.bg/value/0008-000029
http://www.w3.org/2001/XMLSchema
null
EntityIdentifier-0008-000028.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/EntityBasicData-0009-000013.xsd
http://ereg.egov.bg/value/0008-000028
http://www.w3.org/2001/XMLSchema
null
DocumentTypeName-0008-000007.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/appl_v3.xsd
http://ereg.egov.bg/value/0008-000007
http://www.w3.org/2001/XMLSchema
null
AISURI-0008-000039.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/appl_v3.xsd
http://ereg.egov.bg/value/0008-000039
http://www.w3.org/2001/XMLSchema
null
SUNAUServiceURI-0008-000077.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/appl_v3.xsd
http://ereg.egov.bg/value/0008-000077
http://www.w3.org/2001/XMLSchema
null
DocumentTypeURI-0009-000003.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/appl_v3.xsd
http://ereg.egov.bg/segment/0009-000003
http://www.w3.org/2001/XMLSchema
null
RegisterObjectURI-0009-000022.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/DocumentTypeURI-0009-000003.xsd
http://ereg.egov.bg/segment/0009-000022
http://www.w3.org/2001/XMLSchema
null
BatchNumber-0008-000001.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/RegisterObjectURI-0009-000022.xsd
http://ereg.egov.bg/value/0008-000001
http://www.w3.org/2001/XMLSchema
null
InitiatingDocumentURI-0009-000046.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/appl_v3.xsd
http://ereg.egov.bg/segment/0009-000046
http://www.w3.org/2001/XMLSchema
null
DocumentURI-0009-000001.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/InitiatingDocumentURI-0009-000046.xsd
http://ereg.egov.bg/segment/0009-000001
http://www.w3.org/2001/XMLSchema
null
RegisterIndex-0008-000002.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/DocumentURI-0009-000001.xsd
http://ereg.egov.bg/value/0008-000002
http://www.w3.org/2001/XMLSchema
null
DocumentSequenceNumber-0008-000003.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/DocumentURI-0009-000001.xsd
http://ereg.egov.bg/value/0008-000003
http://www.w3.org/2001/XMLSchema
null
DocumentReceiptOrSigningDate-0008-000004.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/DocumentURI-0009-000001.xsd
http://ereg.egov.bg/value/0008-000004
http://www.w3.org/2001/XMLSchema
null
EditorOrVisualizerApplicationURI-0009-000022.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/appl_v3.xsd
http://ereg.egov.bg/segment/0009-000051
http://www.w3.org/2001/XMLSchema
null
ElectronicAdministrativeServiceURI-0009-000091.xsd
file:/home/doncho/Documents/data/java/ROSAppl/src/bg/bulsi/egov/rosappl/xml_schemas/appl_v3.xsd
http://ereg.egov.bg/segment/0009-000091
http://www.w3.org/2001/XMLSchema
javax.xml.bind.MarshalException
 - with linked exception:
[org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of element 'ns3:rosApplicationDocument'.]

The same exception at the end.. So the problem isnt in the xsd

Solution

In the xml you have:

xmlns:ns3="http://ereg.egov.bg/segment/0009-900001"

So http://ereg.egov.bg/segment/0009-900001 should be the default namespace of your schema, but I don't see it declared in the sample code that you posted.

Also, in the schema the element is declared RosApplicationDocument while in the document rosApplicationDocument (lower case)

OTHER TIPS

Currently you are setting an Schema on the Unmarshaller to enable schema validation, and creating a SAXSource on a validation XMLReader that you are unmarshalling. As a first step I would recommend simplifying your code to simply do the following:

        JAXBContext context = JAXBContext.newInstance(c);
        Unmarshaller um = context.createUnmarshaller();
        if (c.equals(RosApplicationDocument.class)) {
            SchemaFactory schemaFactory = SchemaFactory
                    .newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
            Schema schema = schemaFactory.newSchema(new File(pathToXSD));
            um.setSchema(schema);
            InputSource inSrc = new InputSource(new FileReader(pathToFile));
            RosApplicationDocument document = (RosApplicationDocument) um
                    .unmarshal(inSrc);
            RosApplicationDocumentFactory.removeCDATAFromSegments(document);
            return document;
        }

For More Information

http://blog.bdoughan.com/2010/12/jaxb-and-marshalunmarshal-schema.html

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