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<?php
/* --------------------------------------------------------------
   CustomerCountryZoneIsoCode.php 2015-02-02 gm
   Gambio GmbH
   http://www.gambio.de
   Copyright (c) 2015 Gambio GmbH
   Released under the GNU General Public License (Version 2)
   [http://www.gnu.org/licenses/gpl-2.0.html]
   --------------------------------------------------------------
*/

MainFactory::load_class('CustomerCountryZoneIsoCodeInterface');
require_once __DIR__ . '/../../../../Shared/Utility/StringUtilityTrait.inc.php';

/**
 * Value Object
 *
 * Class CustomerCountryZoneIsoCode
 *
 * Represents a customer country zone ISO code
 *
 * @category   System
 * @package    Customer
 * @subpackage ValueObjects
 * @implements CustomerCountryZoneIsoCodeInterface
 */
class CustomerCountryZoneIsoCode implements CustomerCountryZoneIsoCodeInterface
{
    use StringUtilityTrait;
    
    /**
     * Customer's country zone ISO code.
     * @var string
     */
    protected $isoCode;


    /**
     * Constructor of the class CustomerCountryZoneIsoCode.
     *
     * Validates the length and data type of the customer country zone ISO code..
     *
     * @param string $p_isoCode Customer's country zone ISO code.
     *
     * @throws InvalidArgumentException If $p_isoCode is not a string.
     * @throws LengthException If $p_isoCode contains more characters than 32.
     */
    public function __construct($p_isoCode)
    {
        if(!is_string($p_isoCode))
        {
            throw new InvalidArgumentException('$p_isoCode is not a string');
        }

        $dbFieldLengthIsoCode = 32;
        $isoCode              = trim($p_isoCode);

            if($this->strlenWrapper($isoCode) > $dbFieldLengthIsoCode)
        {
            throw new LengthException('$isoCode is longer than ' . $dbFieldLengthIsoCode . ' characters CHAR(32)');
        }

        $this->isoCode = $isoCode;
    }


    /**
     * Returns the equivalent string value.
     * @return string Equivalent string value.
     */
    public function __toString()
    {
        return $this->isoCode;
    }
}