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/vendor/symfony/console/Helper/ -> DescriptorHelper.php (source)

   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Component\Console\Helper;
  13  
  14  use Symfony\Component\Console\Descriptor\DescriptorInterface;
  15  use Symfony\Component\Console\Descriptor\JsonDescriptor;
  16  use Symfony\Component\Console\Descriptor\MarkdownDescriptor;
  17  use Symfony\Component\Console\Descriptor\TextDescriptor;
  18  use Symfony\Component\Console\Descriptor\XmlDescriptor;
  19  use Symfony\Component\Console\Exception\InvalidArgumentException;
  20  use Symfony\Component\Console\Output\OutputInterface;
  21  
  22  /**
  23   * This class adds helper method to describe objects in various formats.
  24   *
  25   * @author Jean-Fran├žois Simon <contact@jfsimon.fr>
  26   */
  27  class DescriptorHelper extends Helper
  28  {
  29      /**
  30       * @var DescriptorInterface[]
  31       */
  32      private $descriptors = array();
  33  
  34      public function __construct()
  35      {
  36          $this
  37              ->register('txt', new TextDescriptor())
  38              ->register('xml', new XmlDescriptor())
  39              ->register('json', new JsonDescriptor())
  40              ->register('md', new MarkdownDescriptor())
  41          ;
  42      }
  43  
  44      /**
  45       * Describes an object if supported.
  46       *
  47       * Available options are:
  48       * * format: string, the output format name
  49       * * raw_text: boolean, sets output type as raw
  50       *
  51       * @param OutputInterface $output
  52       * @param object          $object
  53       * @param array           $options
  54       *
  55       * @throws InvalidArgumentException when the given format is not supported
  56       */
  57      public function describe(OutputInterface $output, $object, array $options = array())
  58      {
  59          $options = array_merge(array(
  60              'raw_text' => false,
  61              'format' => 'txt',
  62          ), $options);
  63  
  64          if (!isset($this->descriptors[$options['format']])) {
  65              throw new InvalidArgumentException(sprintf('Unsupported format "%s".', $options['format']));
  66          }
  67  
  68          $descriptor = $this->descriptors[$options['format']];
  69          $descriptor->describe($output, $object, $options);
  70      }
  71  
  72      /**
  73       * Registers a descriptor.
  74       *
  75       * @param string              $format
  76       * @param DescriptorInterface $descriptor
  77       *
  78       * @return $this
  79       */
  80      public function register($format, DescriptorInterface $descriptor)
  81      {
  82          $this->descriptors[$format] = $descriptor;
  83  
  84          return $this;
  85      }
  86  
  87      /**
  88       * {@inheritdoc}
  89       */
  90      public function getName()
  91      {
  92          return 'descriptor';
  93      }
  94  }


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