60 lines
1.5 KiB
PHP
60 lines
1.5 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Config\Definition;
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use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
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/**
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* Node which only allows a finite set of values.
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*
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* @author Johannes M. Schmitt <schmittjoh@gmail.com>
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*/
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class EnumNode extends ScalarNode
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{
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private $values;
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public function __construct($name, NodeInterface $parent = null, array $values = array())
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{
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$values = array_unique($values);
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if (empty($values)) {
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throw new \InvalidArgumentException('$values must contain at least one element.');
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}
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parent::__construct($name, $parent);
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$this->values = $values;
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}
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public function getValues()
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{
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return $this->values;
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}
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protected function finalizeValue($value)
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{
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$value = parent::finalizeValue($value);
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if (!in_array($value, $this->values, true)) {
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$ex = new InvalidConfigurationException(sprintf(
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'The value %s is not allowed for path "%s". Permissible values: %s',
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json_encode($value),
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$this->getPath(),
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implode(', ', array_map('json_encode', $this->values))
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));
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$ex->setPath($this->getPath());
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throw $ex;
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}
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return $value;
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}
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}
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