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<?php |
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namespace Enzyme\Axiom\Console; |
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use Enzyme\Parrot\File; |
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use Enzyme\Freckle\Dot; |
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use Symfony\Component\Yaml\Parser; |
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use Symfony\Component\Yaml\Exception\ParseException; |
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class Config |
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{ |
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/** |
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* Reference to the Symfony YAML parser. |
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* |
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* @var \Symfony\Component\Yaml\Parser |
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*/ |
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protected $parser; |
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/** |
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* Reference to a parrot file wrapper. |
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* |
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* @var \Enzyme\Parrot\File |
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*/ |
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protected $file_dispatch; |
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/** |
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* The parsed YAML configuration. |
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* |
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* @var array |
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*/ |
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protected $config; |
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/** |
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* The dot array accessor. |
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* |
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* @var \Enzyme\Freckle\Dot |
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*/ |
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protected $dot; |
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/** |
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* Create a new configuration manager. |
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* |
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* @param \Symfony\Component\Yaml\Parser $parser |
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* @param \Enzyme\Parrot\File $file_dispatch |
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* @param \Enzyme\Freckle\Dot $dot |
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*/ |
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public function __construct(Parser $parser, File $file_dispatch, Dot $dot) |
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{ |
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$this->parser = $parser; |
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$this->file_dispatch = $file_dispatch; |
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$this->dot = $dot; |
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$this->config = []; |
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} |
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/** |
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* Parse the given YAML file. |
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* |
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* @param string $file The path to the file. |
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* |
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* @throws Exception If the YAML file cannot be parsed. |
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*/ |
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public function parse($file) |
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{ |
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if (false === $this->file_dispatch->exists($file)) { |
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return; |
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} |
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try { |
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$results = $this->parser->parse( |
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$this->file_dispatch->getContents($file) |
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); |
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if (true === is_array($results)) { |
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$this->config = $results; |
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} |
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} catch (ParseException $e) { |
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throw new Exception( |
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"The yaml configuration file [$file] is invalid." |
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); |
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} |
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} |
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/** |
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* Get the value associated with the given key, if the key does not |
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* exist, return null. |
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* |
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* @param string $key |
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* |
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* @return null|string |
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*/ |
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public function get($key) |
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{ |
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if (count($this->config) < 1) { |
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return null; |
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} |
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return $this->dot->get($this->config, $key); |
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} |
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} |
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enzyme /
axiom
