<?php

/*

 * This file is part of the Symfony package.

 *

 * (c) Fabien Potencier <fabien@symfony.com>

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace Symfony\Component\DependencyInjection\Exception;

/**

 * This exception is thrown when a non-existent parameter is used.

 *

 * @author Fabien Potencier <fabien@symfony.com>

 */

class ParameterNotFoundException extends InvalidArgumentException

{

    private $key;

    private $sourceId;

    private $sourceKey;

    /**

     * Constructor.

     *

     * @param string $key       The requested parameter key

     * @param string $sourceId  The service id that references the non-existent parameter

     * @param string $sourceKey The parameter key that references the non-existent parameter

     */

    public function __construct($key, $sourceId = null, $sourceKey = null)

    {

        $this->key = $key;

        $this->sourceId = $sourceId;

        $this->sourceKey = $sourceKey;

        $this->updateRepr();

    }

    public function updateRepr()

    {

        if (null !== $this->sourceId) {

            $this->message = sprintf('The service "%s" has a dependency on a non-existent parameter "%s".', $this->sourceId, $this->key);

        } elseif (null !== $this->sourceKey) {

            $this->message = sprintf('The parameter "%s" has a dependency on a non-existent parameter "%s".', $this->sourceKey, $this->key);

        } else {

            $this->message = sprintf('You have requested a non-existent parameter "%s".', $this->key);

        }

    }

    public function getKey()

    {

        return $this->key;

    }

    public function getSourceId()

    {

        return $this->sourceId;

    }

    public function getSourceKey()

    {

        return $this->sourceKey;

    }

    public function setSourceId($sourceId)

    {

        $this->sourceId = $sourceId;

        $this->updateRepr();

    }

    public function setSourceKey($sourceKey)

    {

        $this->sourceKey = $sourceKey;

        $this->updateRepr();

    }

}