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<?php |
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namespace Germania\YamlServices; |
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use Symfony\Component\Yaml\Yaml; |
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use Symfony\Component\Finder\Finder; |
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use Psr\Log\LoggerInterface; |
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use Psr\Log\NullLogger; |
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class YamlFileParserCallable |
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{ |
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/** |
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* @var integer |
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*/ |
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public $default_yaml_flags = 0; |
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/** |
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* @var Finder |
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*/ |
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public $finder; |
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/** |
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* @var LoggerInterface |
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*/ |
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public $logger; |
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/** |
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* @param Finder $finder Symfony Finder instance |
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* @param integer $default_yaml_flags Default parsing flags, if needed. |
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* @param LoggerInterface $logger Optional PSR3 Logger |
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*/ |
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public function __construct( Finder $finder, $default_yaml_flags = 0, LoggerInterface $logger = null) |
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{ |
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$this->finder = $finder; |
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$this->default_yaml_flags = $default_yaml_flags; |
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$this->logger = $logger ?: new NullLogger; |
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} |
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/** |
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* @param string $yaml_file The YAML file to parse |
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* @param int|null $yaml_flags Custom YAML flags |
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* @return string |
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*/ |
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public function __invoke( $yaml_file, $yaml_flags = null ) |
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{ |
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$finder = clone $this->finder; |
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$finder = $finder->files()->name( $yaml_file ); |
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// If there's no such file |
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if (!iterator_count($finder)): |
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$this->logger->debug("Could not find YAML file", [ |
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'file' => $yaml_file |
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]); |
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return null; |
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endif; |
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// Reset finder instance |
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$iterator = $finder->getIterator(); |
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$iterator->rewind(); |
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// Retrieve first item |
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$file = $iterator->current(); |
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$yaml_content = $file->getContents(); |
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// How to parse |
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$flags = is_integer($yaml_flags) ? $yaml_flags : $this->default_yaml_flags; |
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// Some info |
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$this->logger->info("Parse YAML file " . $file->getFilename(), [ |
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'file' => $file->getPathname(), |
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'flags' => $flags |
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]); |
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// Parse and return |
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return Yaml::parse($yaml_content, $flags); |
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} |
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} |
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GermaniaKG /
YAML-Services
