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<?php |
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namespace DICIT; |
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use DICIT\Activators\DefaultActivator; |
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use DICIT\Activators\StaticInvocationActivator; |
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use DICIT\Activators\InstanceInvocationActivator; |
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use DICIT\Activators\LazyActivator; |
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use DICIT\Activators\RemoteActivator; |
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use DICIT\Activators\RemoteAdapterFactory; |
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class ActivatorFactory |
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{ |
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private $activators = array(); |
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private $activatorsDecorators = array(); |
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public function __construct($deferActivations = false) |
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{ |
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$this->addActivator('default', new DefaultActivator(), $deferActivations); |
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$this->addActivator('builder-static', new StaticInvocationActivator(), $deferActivations); |
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$this->addActivator('builder', new InstanceInvocationActivator(), $deferActivations); |
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$this->addActivator('remote', new RemoteActivator(new RemoteAdapterFactory()), $deferActivations); |
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} |
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/** |
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* @param string $key |
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* @param boolean $deferredActivations |
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*/ |
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public function addActivator($key, Activator $activator, $deferredActivations) |
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{ |
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if ($activator instanceof ActivatorDecorator) { |
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$this->activatorsDecorators[$key] = $activator; |
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} else { |
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if ($deferredActivations) { |
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$activator = new LazyActivator($activator); |
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} |
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$this->activators[$key] = $activator; |
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} |
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} |
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/** |
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* |
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* @param string $serviceName |
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* @param array $configuration |
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* @throws UnbuildableServiceException |
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* @return \DICIT\Activator |
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*/ |
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public function getActivator($serviceName, array $configuration) |
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{ |
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$activator = null; |
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if (array_key_exists('builder', $configuration)) { |
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$builderType = $this->getBuilderType($configuration['builder']); |
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if ('static' == $builderType) { |
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$activator = $this->activators['builder-static']; |
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} |
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elseif ('instance' == $builderType) { |
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$activator = $this->activators['builder']; |
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} |
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} |
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elseif (array_key_exists('class', $configuration)) { |
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if (array_key_exists('remote', $configuration)) { |
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$activator = $this->activators['remote']; |
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} else { |
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$activator = $this->activators['default']; |
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} |
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} |
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if ($activator == null) { |
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throw new UnbuildableServiceException( |
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sprintf("Unbuildable service : '%s', no suitable activator found.",$serviceName) |
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); |
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} |
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//Decorating the activators if adequate parameters are present |
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foreach($this->activatorsDecorators as $key=>$decorator) { |
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/* @var $decorator ActivatorDecorator */ |
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if (array_key_exists($key, $configuration)) { |
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$dec = clone $decorator; |
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$dec->setNext($activator); |
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$activator = $dec; |
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} |
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} |
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return $activator; |
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} |
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private function getBuilderType($builderKey) |
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{ |
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if (false !== strpos($builderKey, '::')) { |
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return 'static'; |
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} |
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elseif (false !== strpos($builderKey, '->')) { |
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return 'instance'; |
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} |
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return 'null'; |
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} |
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} |
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