Does anyone know how to validate whether a schema is a valid schema without creating an instance document and then validating that first?
I have code which uses a SAX parser and works when validating an xml instance document against its schema however Im trying to use this same code to pass in a schema and the Schema reference and validate one against the other. e.g. validate(myXMLDoc, "/home/mySchema.xsd") --> works valiadte(mySchema, "/home/XMLSchema.xsd") --> fails Does anyone know if this approach is valid or even if Xerces 2.0.1 supports validating a schema directly in this way? The code Im using is listed below. Im getting the following error when I run it... "schema_reference.4: Failed to read schema document 'null', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>." ...even though the document does exist on the file system, can be read by my application and does have the root element <xsd:schema> for both schemas. Any help anyone can give would be much appreciated. Cheers ----------- private static String validationFeat = "http://xml.org/sax/features/validation";; private static String schemaValidationFeat = "http://apache.org/xml/features/validation/schema";; private static String extSchemaProp = "http://apache.org/xml/properties/schema/external-noNamespaceSchemaLocation";; private boolean validate(InputSource xmlSource, String schemaURL) { valid = true; try { SAXParser parser = new SAXParser(); // configures the xerces parser for schema validation. parser.setFeature(validationFeat, true); parser.setFeature(schemaValidationFeat, true); //validate against the given schemaURL parser.setProperty(extSchemaProp, schemaURL); // binds custom error handler to parser ErrorHandler handler = new ValidatingHandler(); parser.setErrorHandler (handler); // parse (validates) the xml parser.parse(xmlSource); } catch (SAXNotRecognizedException snre) { System.out.println("SAX not recognised " + snre); valid = false; } catch (SAXException se) { System.out.println("SAX parser " + se); valid = false; } catch (Exception e) { System.out.println("error parsing " + e); valid = false; } return valid; } _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
