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<?php |
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namespace Karma\Configuration; |
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use Karma\Configuration; |
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abstract class AbstractReader implements Configuration |
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{ |
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protected |
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$defaultEnvironment; |
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private |
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$overridenVariables, |
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$customData; |
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public function __construct() |
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{ |
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$this->defaultEnvironment = 'dev'; |
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$this->overridenVariables = array(); |
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$this->customData = array(); |
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} |
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public function read($variable, $environment = null) |
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{ |
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$value = null; |
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if(array_key_exists($variable, $this->overridenVariables)) |
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{ |
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$value = $this->overridenVariables[$variable]; |
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} |
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else |
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{ |
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$value = $this->readRaw($variable, $environment); |
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} |
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return $this->handleCustomData($value); |
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} |
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abstract protected function readRaw($variable, $environment = null); |
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public function setDefaultEnvironment($environment) |
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{ |
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if(! empty($environment) && is_string($environment)) |
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{ |
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$this->defaultEnvironment = $environment; |
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} |
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return $this; |
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} |
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public function getAllValuesForEnvironment($environment = null) |
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{ |
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$result = array(); |
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$variables = $this->getAllVariables(); |
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foreach($variables as $variable) |
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{ |
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try |
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{ |
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$value = $this->read($variable, $environment); |
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} |
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catch(\RuntimeException $e) |
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{ |
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$value = Configuration::NOT_FOUND; |
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} |
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$result[$variable] = $value; |
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} |
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return $result; |
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} |
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public function overrideVariable($variable, $value) |
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{ |
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$this->overridenVariables[$variable] = $value; |
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return $this; |
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} |
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public function setCustomData($customDataName, $value) |
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{ |
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$key = '${' . $customDataName . '}'; |
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$this->customData[$key] = $value; |
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return $this; |
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} |
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private function handleCustomData($value) |
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{ |
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if(! is_string($value)) |
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{ |
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return $value; |
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} |
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return strtr($value, $this->customData); |
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} |
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} |
Only declaring a single property per statement allows you to later on add doc comments more easily.
It is also recommended by PSR2, so it is a common style that many people expect.