OSB Validate action

Question

As I have just started working in OSB, so my query is whether I can get a proper error message from OSB validate action against the particular attribute in an XML which is having the wrong input.
Example : Suppose in my XSD i have defined student's id as integer but in below XML it is coming with a string. So can I get the exact error message stating like attribute 'id' is having a wrong value and so validation failed.
<Class>
<student id="123"/>
</Class>
Please help.

Answer 1

The attribute level validation was done through java call out. Had to use sax parser for this..
here is the code :
public class XMLValidator {
static boolean success = true;
static private String errorMsg = "";
static String msg = "";
* @param xsdPath
* @param payload
* @return
public static String XMLValidator(String xsdPath, String payload) {
String status = "";
try {
System.out.println("XSD Path: " + xsdPath);
System.out.println("Payload: " + payload);
status = ValidateXML(new URL(xsdPath), payload);
} catch (MalformedURLException e) {
return (e.getMessage());
return (status);
public static String ValidateXML(URL xsdUrl, String xmlFile) {
success = true;
errorMsg = "";
SAXParser saxParser = new SAXParser();
saxParser.setValidationMode(XMLParser.SCHEMA_VALIDATION);
String xmlFilePayload = xmlFile;
XSDBuilder builder;
try {
builder = new XSDBuilder();
URL url = xsdUrl;
//System.out.println(url.getPath());
XMLSchema schemadoc = (XMLSchema)builder.build(url);
saxParser.setXMLSchema(schemadoc);
Validator handler = new Validator();
saxParser.setErrorHandler(handler);
// saxParser.parse(new FileInputStream(new File(xmlFilePayload)));
InputStream inputStream =
new ByteArrayInputStream(xmlFilePayload.getBytes("UTF-8"));
saxParser.parse(inputStream);
if (success) {
msg = "Successfully Validated";
} else {
/* writeLogFile(logFileName,
"[" + counter + "]. " + xmlFileName + "\n" +
"------------------------------------------------------------------------------------------------------\n" +
errorMsg + "\n\n\n", true);*/
msg = errorMsg;
} catch (XSDException f) {
System.out.println("XSDException : " + f.getMessage());
//System.out.println("XSDException : " + f.getMessage());
} catch (FileNotFoundException f) {
System.out.println("FileNotFoundException : " + f.getMessage());
} catch (SAXException f) {
System.out.println("SAXException : " + f.getMessage());
} catch (IOException f) {
System.out.println("IOException : " + f.getMessage());
catch (Exception f) {
System.out.println("IOException : " + f.getMessage());
return (msg);
public static class Validator implements ErrorHandler {
public void error(SAXParseException exception) {
success = false;
int separator = exception.getMessage().indexOf(")");
System.out.println("index "+separator);
String st = exception.getMessage().substring(separator+1);
errorMsg = errorMsg + "Error : " + st + "\n";
//System.out.println("error: " + exception.getMessage());
public void fatalError(SAXParseException exception) {
success = false;
errorMsg =
errorMsg + "Fatal Error : " + exception.getMessage() + "\n";
// System.out.println("fatalError: " + exception.getMessage());
public void warning(SAXParseException exception) {
success = false;
errorMsg = errorMsg + "Warning : " + exception.getMessage() + "\n";
//System.out.println("warning: " + exception.getMessage());
}