/*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package javax.xml.bind.helpers;
import org.w3c.dom.Node;
import javax.xml.bind.ValidationEvent;
import javax.xml.bind.ValidationEventHandler;
import javax.xml.bind.ValidationEventLocator;
import java.net.URL;
/**
* <p>
* JAXB 1.0 only default validation event handler. This is the default
* handler for all objects created from a JAXBContext that is managing
* schema-derived code generated by a JAXB 1.0 binding compiler.
*
* <p>
* This handler causes the unmarshal and validate operations to fail on the first
* error or fatal error.
*
* <p>
* This handler is not the default handler for JAXB mapped classes following
* JAXB 2.0 or later versions. Default validation event handling has changed
* and is specified in {@link javax.xml.bind.Unmarshaller} and
* {@link javax.xml.bind.Marshaller}.
*
* @author <ul><li>Ryan Shoemaker, Sun Microsystems, Inc.</li></ul>
* @see javax.xml.bind.Unmarshaller
* @see javax.xml.bind.Validator
* @see javax.xml.bind.ValidationEventHandler
* @since JAXB1.0
*/
public class DefaultValidationEventHandler implements ValidationEventHandler {
public boolean handleEvent( ValidationEvent event ) {
if( event == null ) {
throw new IllegalArgumentException();
}
// calculate the severity prefix and return value
String severity = null;
boolean retVal = false;
switch ( event.getSeverity() ) {
case ValidationEvent.WARNING:
severity = Messages.format( Messages.WARNING );
retVal = true; // continue after warnings
break;
case ValidationEvent.ERROR:
severity = Messages.format( Messages.ERROR );
retVal = false; // terminate after errors
break;
case ValidationEvent.FATAL_ERROR:
severity = Messages.format( Messages.FATAL_ERROR );
retVal = false; // terminate after fatal errors
break;
default:
assert false :
Messages.format( Messages.UNRECOGNIZED_SEVERITY,
event.getSeverity() );
}
// calculate the location message
String location = getLocation( event );
System.out.println(
Messages.format( Messages.SEVERITY_MESSAGE,
severity,
event.getMessage(),
location ) );
// fail on the first error or fatal error
return retVal;
}
/**
* Calculate a location message for the event
*
*/
private String getLocation(ValidationEvent event) {
StringBuffer msg = new StringBuffer();
ValidationEventLocator locator = event.getLocator();
if( locator != null ) {
URL url = locator.getURL();
Object obj = locator.getObject();
Node node = locator.getNode();
int line = locator.getLineNumber();
if( url!=null || line!=-1 ) {
msg.append( "line " + line );
if( url!=null )
msg.append( " of " + url );
} else if( obj != null ) {
msg.append( " obj: " + obj.toString() );
} else if( node != null ) {
msg.append( " node: " + node.toString() );
}
} else {
msg.append( Messages.format( Messages.LOCATION_UNAVAILABLE ) );
}
return msg.toString();
}
}
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