alpha.portal.webapp.util.ValidationUtil.java Source code

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Here is the source code for alpha.portal.webapp.util.ValidationUtil.java

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/**************************************************************************
 * alpha-Portal: A web portal, for managing knowledge-driven 
 * ad-hoc processes, in form of case files.
 * ==============================================
 * Copyright (C) 2011-2012 by 
 *   - Christoph P. Neumann (http://www.chr15t0ph.de)
 *   - and the SWAT 2011 team
 **************************************************************************
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *     http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and 
 * limitations under the License.
 **************************************************************************
 * $Id$
 *************************************************************************/
package alpha.portal.webapp.util;

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.springframework.validation.Errors;
import org.springmodules.validation.commons.FieldChecks;

/**
 * ValidationUtil Helper class for performing custom validations that aren't
 * already included in the core Commons Validator.
 * 
 * <p>
 * <a href="ValidationUtil.java.html"><i>View Source</i></a>
 * </p>
 * 
 * @author <a href="mailto:matt@raibledesigns.com">Matt Raible</a>
 */
public class ValidationUtil {
    // ~ Methods
    // ================================================================

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

        if (!GenericValidator.isBlankOrNull(value)) {
            try {
                if (!value.equals(value2)) {
                    FieldChecks.rejectValue(errors, field, va);
                    return false;
                }
            } catch (final Exception e) {
                FieldChecks.rejectValue(errors, field, va);
                return false;
            }
        }

        return true;
    }
}