/**
* Resolve the Component string into an Object instance.
*
* @param IDependencyInjectionContainer $container
* @param IComponentAdapter $adapter
* @return mixed
*/
public function resolve(IDependencyInjectionContainer $container, IComponentAdapter $adapter)
{
$instance = $container->getInstanceOf($this->component);
if (is_null($instance)) {
throw new InjecteeArgumentException("Cannot create '{$this->component}' component, reffered to by '{$adapter->getKey()}' component");
}
return $instance;
}
/**
* Resolve arguments of ReflectionMethod by their optionality or class name.
*
* If argument is optional and it's default value is supplied,
* use its default value. Else the argument must be a Class or Interface,
* so the container is able to instantiate and provide proper values.
*
* @param IDependencyInjectionContainer $container
* @param ReflectionMethod $method
* @return array of mixed
*/
protected function getArgumentsOfMethod(IDependencyInjectionContainer $container, ReflectionMethod $method)
{
$result = array();
$parameters = $method->getParameters();
foreach ($parameters as $parameter) {
if ($parameter->isOptional() || $parameter->isDefaultValueAvailable()) {
$result[] = $parameter->getDefaultValue();
} else {
$parameterClass = $parameter->getClass();
if (!$parameterClass) {
throw new InjecteeArgumentException("Argument '{$parameter->getName()}' cannot be instantiated, it is either a Value or an Unknown type");
}
$result[] = $container->getInstanceOf($parameterClass->getName());
}
}
return $result;
}
