CODEWITHSUNDEEP
javaxsd-validation
adi
adi

Reputation: 1741

Java: SAX Schema validation

I've following two schema's. Master.xsd and Child.xsd

  1. Child.xsd is imported by the Master.xsd.
  2. Master file has target namespace 'pub'.
  3. Child file no such namespace.

When I try to validate xml with Master.xsd, I get error

org.xml.sax.SAXParseException: src-resolve: Cannot resolve the name 'author' to a(n) 'element declaration' component.

I've also tried using in master.xsd, this time i get similar error:

org.xml.sax.SAXParseException: src-resolve: Cannot resolve the name 'pub:author' to a(n) 'element declaration' component.

Though this get validated by XMLSpy successfully.

Here are the schema's, calling code and the validation code:

Master.xsd

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:pub="http://schema.abc.com" xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="http://schema.abc.com">
    <xs:import schemaLocation="Child.xsd"/>
    <xs:element name="books">
        <xs:complexType>
            <xs:choice minOccurs="0" maxOccurs="unbounded">
                <xs:element ref="pub:book"/>
            </xs:choice>
        </xs:complexType>
    </xs:element>
    <xs:element name="book">
        <xs:complexType>
            <xs:sequence>
                <xs:element ref="pub:published_date"/>
                <xs:element ref="author"/>
            </xs:sequence>
        </xs:complexType>
    </xs:element>
    <xs:element name="published_date" type="xs:dateTime"/>
</xs:schema>

Child.xsd

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <xsd:element name="author">
        <xsd:complexType>
            <xsd:sequence>
                <xsd:element ref="first_name"/>
            </xsd:sequence>
        </xsd:complexType>
    </xsd:element>
    <xsd:element name="first_name" type="xsd:string"/>
</xsd:schema>

Sample.xml that needs to be validated:

<?xml version="1.0" encoding="UTF-8"?>
<pub:books xsi:schemaLocation="http://schema.abc.com" xmlns:pub="http://schema.abc.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <pub:book>
        <pub:published_date>2001-12-17T09:30:47Z</pub:published_date>
        <author>
            <first_name>Adi</first_name>
        </author>
    </pub:book>
</pub:books>

Java code for validation:

private void validate(final String schema, final String xml) {
        SchemaFactory schemaFactory = SchemaFactory.newInstance("http://www.w3.org/2001/XMLSchema");
        InputStream is = getClass().getResourceAsStream(schema);
        Schema schema;
        try {
            schema = schemaFactory.newSchema(new StreamSource(is));
            Validator validator = schema.newValidator();
            Source xmlSource = new StreamSource( new StringReader(xml));

            validator.validate(xmlSource);

        } catch (IOException e) {
            e.printStackTrace();
        } catch (SAXException e) {
            e.printStackTrace();
        }
    }

calling code:

validate(masterXSDPath, "xmlString");

Please tell where am I going wrong??

Upvotes: 1

Views: 5247

Answers (2)

adi
adi

Reputation: 1741

Fixed it by implementing LSResourceResolver. The Child.xsd was not found.

look here for more detials https://stackoverflow.com/a/2342859/842210

Upvotes: 2

jtahlborn
jtahlborn

Reputation: 53694

i would imagine you would want both schemas available, thus something like:

schemaFactory.newSchema(new Source[]{new StreamSource(is1), new StreamSource(is2)});

alternately, you could provide a custom LSResourceResolver to the SchemaFactory.

Upvotes: 2

Related Questions