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<?php
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/**
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* @category Library
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* @license MIT http://opensource.org/licenses/MIT
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* @link https://github.com/emlynwest/changelog
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*/
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namespace ChangeLog;
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use InvalidArgumentException;
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use ReflectionClass;
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/**
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* Basic factory class that can be used to load classes from any given namespace.
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*/
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class GenericFactory
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{
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/**
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* Base namespace
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*
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* @var string
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*/
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protected $baseNamespace;
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/**
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* Contains any mappings for extra classes.
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*
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* @var array
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*/
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protected $addedClasses = [];
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/**
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* GenericFactory constructor.
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*
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* @param string $baseNamespace
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*/
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public function __construct($baseNamespace)
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{
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$this->baseNamespace = $baseNamespace;
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}
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/**
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* Returns a constructed instance of the named class.
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*
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* @param string $name
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* @param array $parameters
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*
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* @return mixed
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*
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* @throws InvalidArgumentException If the class cannot be found.
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*/
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public function getInstance($name, $parameters = [])
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{
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$class = $this->baseNamespace . ucfirst($name);
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// If we have a custom class, use that instead.
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if ( ! empty($this->addedClasses[$name]))
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{
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$class = $this->addedClasses[$name];
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}
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// Ensure our class actually exists
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if ( ! class_exists($class))
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{
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throw new InvalidArgumentException("$name is not a known class ($class)");
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}
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return new $class($parameters);
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}
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/**
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* Adds a new named class to the factory.
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*
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* @param string $name
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* @param string $class
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*/
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public function addClass($name, $class)
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{
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$this->addedClasses[$name] = $class;
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}
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}
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emlynwest /
changelog
