name.martingeisse.wicket.autoform.annotation.validation.palette.IntegerRangeValidator.java Source code

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Here is the source code for name.martingeisse.wicket.autoform.annotation.validation.palette.IntegerRangeValidator.java

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/**
 * Copyright (c) 2011 Martin Geisse
 *
 * This file is distributed under the terms of the MIT license.
 */

package name.martingeisse.wicket.autoform.annotation.validation.palette;

import org.apache.wicket.behavior.Behavior;
import org.apache.wicket.util.io.IClusterable;
import org.apache.wicket.validation.IValidatable;
import org.apache.wicket.validation.IValidator;
import org.apache.wicket.validation.ValidationError;

/**
 * Common implementation for {@link MinIntegerValue} and {@link MaxIntegerValue} validation.
 */
public class IntegerRangeValidator extends Behavior implements IValidator<Integer>, IClusterable {

    /**
     * the value
     */
    private final int value;

    /**
     * the isMinimum
     */
    private final boolean isMinimum;

    /**
     * Constructor.
     * @param annotation the annotation
     */
    public IntegerRangeValidator(final MinIntegerValue annotation) {
        this(annotation.value(), true);
    }

    /**
     * Constructor.
     * @param annotation the annotation
     */
    public IntegerRangeValidator(final MaxIntegerValue annotation) {
        this(annotation.value(), false);
    }

    /**
     * Constructor.
     * @param value the value to compare with
     * @param isMinimum true if the value is the minimum, false if it is the maximum
     */
    public IntegerRangeValidator(final int value, final boolean isMinimum) {
        this.value = value;
        this.isMinimum = isMinimum;
    }

    /* (non-Javadoc)
     * @see org.apache.wicket.validation.IValidator#validate(org.apache.wicket.validation.IValidatable)
     */
    @Override
    public void validate(IValidatable<Integer> validatable) {
        int actualValue = validatable.getValue();
        if ((isMinimum && actualValue < value) || (!isMinimum && actualValue > value)) {
            ValidationError error = new ValidationError(this, isMinimum ? "minimum" : "maximum");
            error.setVariable("value", validatable.getValue());
            error.setVariable(isMinimum ? "minimum" : "maximum", value);
            validatable.error(error);
        }
    }

}