Server-Side XML Validation with CXF Webservice

Question

I\'m working on an Apache CXF webservice (using JAX-WS, over SOAP). The service itself is pretty simple: receive a request, insert the request into a database, and return w

Answer 1

You can override validation error messages, inserting a line number, by using a custom ValidationEventHandler:

package example;

import javax.xml.bind.ValidationEvent;
import javax.xml.bind.helpers.DefaultValidationEventHandler;

public class MyValidationEventHandler extends DefaultValidationEventHandler {    
    @Override
    public boolean handleEvent(ValidationEvent event) {
        if (event.getSeverity() == ValidationEvent.WARNING) {
            return super.handleEvent(event);
        } else {
            throw new RuntimeException(event.getMessage()
                + " [line:"+event.getLocator().getLineNumber()+"]");
        }
    }
}

If you configure your endpoint to use this handler:

Then you will get SOAP faults that look like this:

    
        
            soap:Client
            Unmarshalling Error: Not a number: xyz [line: 6]
        
    

The jaxb-validation-event-handler property was only added to CXF pretty recently, so you need to make sure you're using the latest version - I tested this with 2.2.5.