XmiValidationEventHandler.java

/*
 * Copyright 2008 Lockheed Martin Corporation, except as stated in the file 
 * entitled Licensing-Information. All modifications copyright 2009 Data Access Technologies, Inc. Licensed under the Academic Free License 
 * version 3.0 (http://www.opensource.org/licenses/afl-3.0.php), except as stated 
 * in the file entitled Licensing-Information. 
 *
 * Contributors:
 *   MDS - initial API and implementation
 *
 */

package org.modeldriven.fuml.xmi;

import javax.xml.bind.ValidationEvent;
import javax.xml.bind.ValidationEventLocator;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.modeldriven.fuml.bind.BindingValidationEventHandler;

/**
 * Default handler, simply logging validation error events.
 * 
 * @author Scott Cinnamond
 */
public class XmiValidationEventHandler implements BindingValidationEventHandler {

    private static Log log = LogFactory.getLog(XmiValidationEventHandler.class);
    private int errorCount;
    private boolean cumulative = true;

    public int getErrorCount() {
        return errorCount;
    }

    public XmiValidationEventHandler() {
    }

    public XmiValidationEventHandler(boolean cumulative) {
        this.cumulative = cumulative;
    }

    public boolean handleEvent(ValidationEvent ve) {
        boolean result = this.cumulative;
        this.errorCount++;
        ValidationEventLocator vel = ve.getLocator();

        String message = "Line:Col:Offset[" + vel.getLineNumber() + ":" + vel.getColumnNumber()
                + ":" + String.valueOf(vel.getOffset()) + "] - " + ve.getMessage();

        switch (ve.getSeverity()) {
        case ValidationEvent.WARNING:
            log.warn(message);
            break;
        case ValidationEvent.ERROR:
            log.error(message);
            break;
        case ValidationEvent.FATAL_ERROR:
            log.fatal(message);
            break;
        default:
            log.error(message);
        }
        return result;
    }

    public void reset() {
        this.errorCount = 0;
    }

}