com.autentia.intra.validator.EuroValidator.java Source code

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Here is the source code for com.autentia.intra.validator.EuroValidator.java

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/* 
 *  TNTConcept Easy Enterprise Management by Autentia Real Bussiness Solution S.L.  
 *   Copyright (C) 2007 Autentia Real Bussiness Solution S.L.                  
 *   
 *    This program is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU General Public License
 *    as published by the Free Software Foundation; either version 2
 *    of the License, or (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 *    Autentia Real Bussiness Solution S.L.
 *    Tlf: +34 91 675 33 06, +34 655 99 11 72
 *    Fax: +34 91 656 65 04
 *    info@autentia.com                                                
 */

package com.autentia.intra.validator;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import javax.faces.application.FacesMessage;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.validator.Validator;
import javax.faces.validator.ValidatorException;
import java.math.BigDecimal;

/**
 * @author ivan
 */
public class EuroValidator implements Validator {
    private static final Log log = LogFactory.getLog(EuroValidator.class);

    /** */
    public void validate(FacesContext context, UIComponent component, Object value) throws ValidatorException {
        int scale = Integer.parseInt((String) component.getAttributes().get("scale"));
        int maxSize = Integer.parseInt((String) component.getAttributes().get("maxSize"));
        log.info("validate - value=" + value);
        if (value != null) {
            // Check if value is a BigDecimal
            if (!(value instanceof BigDecimal)) {
                log.info("validate - value is not a BigDecimal (" + value.getClass().getName() + ")");
                throw new ValidatorException(
                        new FacesMessage("Las cantidades monetarias deben ser de tipo BigDecimal"));
            }

            // Check if it has no more than scale decimal digits
            BigDecimal bd = (BigDecimal) value;
            if (bd.scale() > scale) {
                log.info("validate - value has more than 2 decimals (" + value + ")");
                throw new ValidatorException(new FacesMessage(
                        "Las cantidades monetarias no pueden tener ms de " + scale + " decimales"));
            }
            if (bd.precision() - bd.scale() > (maxSize - scale)) {
                log.info("validate - value has more than " + maxSize + " numbers (" + value + ")");
                throw new ValidatorException(new FacesMessage("Las cantidades monetarias no pueden tener ms de "
                        + maxSize + " cifras incluyendo los " + scale + " decimales"));
            }
        }
    }
}