IntervalValidator.java example

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ceres-master
/*
 * Copyright (C) 2010 Brockmann Consult GmbH (info@brockmann-consult.de)
 *
 * 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 3 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, see http://www.gnu.org/licenses/
 */

package com.bc.ceres.binding.validators;

import com.bc.ceres.binding.ValidationException;
import com.bc.ceres.binding.Validator;
import com.bc.ceres.binding.Property;
import com.bc.ceres.binding.ValueRange;

import java.text.MessageFormat;

public class IntervalValidator implements Validator {
    private final ValueRange valueRange;

    public IntervalValidator(ValueRange valueRange) {
        this.valueRange = valueRange;
    }

    @Override
    public void validateValue(Property property, Object value) throws ValidationException {
        if (value instanceof Number) {

            if (!valueRange.contains(((Number) value).doubleValue())) {
                final String message = MessageFormat.format("Value for ''{0}'' is out of range {1}.",
                                                            property.getDescriptor().getDisplayName(),
                                                            valueRange.toString());
                throw new ValidationException(message);
            }
        }
    }
}