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- 06.01.2017
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Processor.php
01 <?php
02
03 /*
04 * This file is part of the Symfony package.
05 *
06 * (c) Fabien Potencier <fabien@symfony.com>
07 *
08 * For the full copyright and license information, please view the LICENSE
09 * file that was distributed with this source code.
10 */
11
12 namespace Symfony\Component\Config\Definition;
13
14 /**
15 * This class is the entry point for config normalization/merging/finalization.
16 *
17 * @author Johannes M. Schmitt <schmittjoh@gmail.com>
18 */
19 class Processor
20 {
21 /**
22 * Processes an array of configurations.
23 *
24 * @param NodeInterface $configTree The node tree describing the configuration
25 * @param array $configs An array of configuration items to process
26 *
27 * @return array The processed configuration
28 */
29 public function process(NodeInterface $configTree, array $configs)
30 {
31 $currentConfig = array();
32 foreach ($configs as $config) {
33 $config = $configTree->normalize($config);
34 $currentConfig = $configTree->merge($currentConfig, $config);
35 }
36
37 return $configTree->finalize($currentConfig);
38 }
39
40 /**
41 * Processes an array of configurations.
42 *
43 * @param ConfigurationInterface $configuration The configuration class
44 * @param array $configs An array of configuration items to process
45 *
46 * @return array The processed configuration
47 */
48 public function processConfiguration(ConfigurationInterface $configuration, array $configs)
49 {
50 return $this->process($configuration->getConfigTreeBuilder()->buildTree(), $configs);
51 }
52
53 /**
54 * Normalizes a configuration entry.
55 *
56 * This method returns a normalize configuration array for a given key
57 * to remove the differences due to the original format (YAML and XML mainly).
58 *
59 * Here is an example.
60 *
61 * The configuration in XML:
62 *
63 * <twig:extension>twig.extension.foo</twig:extension>
64 * <twig:extension>twig.extension.bar</twig:extension>
65 *
66 * And the same configuration in YAML:
67 *
68 * extensions: ['twig.extension.foo', 'twig.extension.bar']
69 *
70 * @param array $config A config array
71 * @param string $key The key to normalize
72 * @param string $plural The plural form of the key if it is irregular
73 *
74 * @return array
75 */
76 public static function normalizeConfig($config, $key, $plural = null)
77 {
78 if (null === $plural) {
79 $plural = $key.'s';
80 }
81
82 if (isset($config[$plural])) {
83 return $config[$plural];
84 }
85
86 if (isset($config[$key])) {
87 if (is_string($config[$key]) || !is_int(key($config[$key]))) {
88 // only one
89 return array($config[$key]);
90 }
91
92 return $config[$key];
93 }
94
95 return array();
96 }
97 }
98