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<?php |
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/** |
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* Xyster Framework |
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* |
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* This source file is subject to the new BSD license that is bundled |
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* with this package in the file LICENSE.txt. |
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* It is also available through the world-wide-web at this URL: |
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* http://www.opensource.org/licenses/bsd-license.php |
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* |
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* @category Xyster |
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* @package Xyster_Container |
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* @copyright Copyright LibreWorks, LLC (http://libreworks.net) |
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* @license http://www.opensource.org/licenses/bsd-license.php New BSD License |
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* @version $Id$ |
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*/ |
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namespace Xyster\Container\Injector; |
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/** |
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* Provides instances of the component type |
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* |
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* @category Xyster |
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* @package Xyster_Container |
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* @copyright Copyright LibreWorks, LLC (http://libreworks.net) |
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* @license http://www.opensource.org/licenses/bsd-license.php New BSD License |
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*/ |
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class Standard extends AbstractInjector |
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{ |
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/** |
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* Get an instance of the provided component. |
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* |
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* @param \Xyster\Container\IContainer $container The container (used for dependency resolution) |
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* @param \Xyster\Type\Type $into Optional. The type into which this component will be injected |
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* @return mixed The component |
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*/ |
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public function get(\Xyster\Container\IContainer $container, \Xyster\Type\Type $into = null) |
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{ |
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$type = $this->getType(); |
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// instantiate a copy of the type |
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$instance = $this->_newInstance($type, $container); |
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// inject literal and referenced properties |
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$this->injectProperties($instance, $container); |
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// inject container if necessary |
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if ( $instance instanceof \Xyster\Container\IContainerAware ) { |
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$instance->setContainer($container); |
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} |
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// call init method if necessary |
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if ( $method = $this->_initMethod ) { |
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$instance->$method(); |
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} |
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return $instance; |
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} |
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|
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/** |
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* Gets the label for the type of provider. |
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* |
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* @return string The provider label |
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*/ |
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public function getLabel() |
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{ |
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return 'Injector'; |
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} |
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|
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/** |
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* Verify that all dependencies for this component can be satisifed. |
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* |
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* @param \Xyster\Container\IContainer $container The container |
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* @throws \Xyster\Container\Exception if one or more required dependencies aren't met |
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*/ |
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public function validate(\Xyster\Container\IContainer $container) |
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{ |
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$reflectionClass = $this->getType()->getClass(); |
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$member = ($reflectionClass) ? $reflectionClass->getConstructor() : null; |
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/* @var $member \ReflectionMethod */ |
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if ( $member != null ) { |
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$types = \Xyster\Type\Type::getForParameters($member); |
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foreach( $member->getParameters() as $k => $reflectionParameter ) { |
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/* @var $reflectionParameter \ReflectionParameter */ |
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$paramType = $types[$k]; |
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/* @var $paramType \Xyster\Type\Type */ |
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$argument = isset($this->_constructorArguments[$k]) ? |
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$this->_constructorArguments[$k] : null; |
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if ( !$paramType->isInstance($argument) && |
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!$container->contains($argument) && |
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!$reflectionParameter->isOptional() ) { |
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throw new Exception('Component not found in the container: ' . $argument); |
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} |
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} |
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} |
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foreach( $this->_dependsOn as $k => $v ) { |
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if ( !$container->contains($v) ) { |
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throw new Exception('Component not found in the container: ' . $v); |
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} |
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} |
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} |
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} |
