ValidationUtil.java

package mx.edu.um.webapp.util;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.validator.Field;
import org.apache.commons.validator.GenericValidator;
import org.apache.commons.validator.ValidatorAction;
import org.apache.commons.validator.util.ValidatorUtils;
import org.apache.struts.action.ActionMessages;
import org.apache.struts.validator.Resources;


/**
 * ValidationUtil Helper class for performing custom validations that
 * aren't already included in the core Struts Validator.
 *
 * <p>
 * <a href="ValidationUtil.java.html"><i>View Source</i></a>
 * </p>
 *
 * @author <a href="mailto:matt@raibledesigns.com">Matt Raible</a>
 * @version $Revision: 1.4 $ $Date: 2004-05-15 20:18:10 -0600 (Sat, 15 May 2004) $
 */
public class ValidationUtil {
    //~ Methods ================================================================

    /**
     * Validates that two fields match.
     * @param bean
     * @param va
     * @param field
     * @param errors
     * @param request
     * @return boolean
     */
    public static boolean validateTwoFields(Object bean, ValidatorAction va,
                                            Field field, ActionMessages errors,
                                            HttpServletRequest request) {
        String value =
            ValidatorUtils.getValueAsString(bean, field.getProperty());
        String sProperty2 = field.getVarValue("secondProperty");
        String value2 = ValidatorUtils.getValueAsString(bean, sProperty2);

        if (!GenericValidator.isBlankOrNull(value)) {
            try {
                if (!value.equals(value2)) {
                    errors.add(field.getKey(),
                               Resources.getActionMessage(request, va, field));

                    return false;
                }
            } catch (Exception e) {
                errors.add(field.getKey(),
                           Resources.getActionMessage(request, va, field));

                return false;
            }
        }

        return true;
    }
}