127 lines
3.9 KiB
PHP
127 lines
3.9 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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/**
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* This class is the entry point for config normalization/merging/finalization.
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*
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* @author Johannes M. Schmitt <schmittjoh@gmail.com>
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*/
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class Processor
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{
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/**
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* Processes an array of configurations.
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*
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* @param NodeInterface $configTree The node tree describing the configuration
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* @param array $configs An array of configuration items to process
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*
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* @return array The processed configuration
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*/
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public function process(NodeInterface $configTree, array $configs)
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{
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$configs = self::normalizeKeys($configs);
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$currentConfig = array();
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foreach ($configs as $config) {
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$config = $configTree->normalize($config);
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$currentConfig = $configTree->merge($currentConfig, $config);
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}
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return $configTree->finalize($currentConfig);
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}
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/**
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* Processes an array of configurations.
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*
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* @param ConfigurationInterface $configuration The configuration class
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* @param array $configs An array of configuration items to process
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*
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* @return array The processed configuration
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*/
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public function processConfiguration(ConfigurationInterface $configuration, array $configs)
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{
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return $this->process($configuration->getConfigTreeBuilder()->buildTree(), $configs);
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}
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/**
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* This method normalizes keys between the different configuration formats
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*
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* Namely, you mostly have foo_bar in YAML while you have foo-bar in XML.
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* After running this method, all keys are normalized to foo_bar.
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*
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* If you have a mixed key like foo-bar_moo, it will not be altered.
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* The key will also not be altered if the target key already exists.
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*
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* @param array $config
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*
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* @return array the config with normalized keys
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*/
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public static function normalizeKeys(array $config)
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{
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foreach ($config as $key => $value) {
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if (is_array($value)) {
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$config[$key] = self::normalizeKeys($value);
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}
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if (false !== strpos($key, '-') && false === strpos($key, '_') && !array_key_exists($normalizedKey = str_replace('-', '_', $key), $config)) {
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$config[$normalizedKey] = $config[$key];
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unset($config[$key]);
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}
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}
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return $config;
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}
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/**
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* Normalizes a configuration entry.
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*
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* This method returns a normalize configuration array for a given key
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* to remove the differences due to the original format (YAML and XML mainly).
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*
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* Here is an example.
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*
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* The configuration is XML:
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*
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* <twig:extension id="twig.extension.foo" />
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* <twig:extension id="twig.extension.bar" />
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*
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* And the same configuration in YAML:
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*
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* twig.extensions: ['twig.extension.foo', 'twig.extension.bar']
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*
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* @param array $config A config array
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* @param string $key The key to normalize
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* @param string $plural The plural form of the key if it is irregular
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*
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* @return array
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*/
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public static function normalizeConfig($config, $key, $plural = null)
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{
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if (null === $plural) {
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$plural = $key.'s';
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}
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$values = array();
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if (isset($config[$plural])) {
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$values = $config[$plural];
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} elseif (isset($config[$key])) {
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if (is_string($config[$key]) || !is_int(key($config[$key]))) {
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// only one
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$values = array($config[$key]);
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} else {
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$values = $config[$key];
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}
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}
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return $values;
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}
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} |