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<?php |
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namespace WZRD\Messaging; |
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use InvalidArgumentException; |
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use League\Tactician\CommandBus as BaseTacticianBus; |
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use League\Tactician\Handler\CommandHandlerMiddleware; |
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use League\Tactician\Handler\CommandNameExtractor\ClassNameExtractor; |
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use League\Tactician\Handler\Locator\InMemoryLocator; |
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use League\Tactician\Handler\MethodNameInflector\HandleInflector; |
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use League\Tactician\Plugins\LockingMiddleware; |
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use ReflectionParameter; |
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use WZRD\Contracts\Messaging\Bus as BusContract; |
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use WZRD\Contracts\Messaging\Handler as HandlerContract; |
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use WZRD\Contracts\Messaging\Message as MessageContract; |
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class TacticianBus extends BaseTacticianBus implements BusContract |
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{ |
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/** |
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* Build the bus. |
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* |
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* @param Middleware[] $middleware |
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*/ |
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public function __construct(array $middlewares = []) |
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{ |
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$this->init = false; |
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$this->middlewares = $middlewares; |
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$this->locator = new InMemoryLocator(); |
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$this->extractor = new ClassNameExtractor(); |
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$this->inflector = new HandleInflector(); |
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} |
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/** |
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* Dispatch a message to its appropriate handler. |
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* |
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* @param WZRD\Contracts\Messaging\Message $message |
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*/ |
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public function dispatch(MessageContract $message) |
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{ |
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if (!$this->init) { |
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$this->init = true; |
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parent::__construct(array_merge($this->middlewares, [ |
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new LockingMiddleware(), |
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new CommandHandlerMiddleware($this->extractor, $this->locator, $this->inflector), |
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])); |
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} |
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return $this->handle($message); |
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} |
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/** |
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* Subscribes the handler to this bus. |
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* |
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* @param WZRD\Contracts\Messaging\Handler $handler |
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*/ |
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public function subscribe(HandlerContract $handler) |
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{ |
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if (!($handler instanceof Handler)) { |
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throw new InvalidArgumentException("Handler must extends WZRD\Messaging\Hanlder"); |
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} |
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$handle_parameter_reflection = new ReflectionParameter([get_class($handler), 'process'], 0); |
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$expected_message = $handle_parameter_reflection->getClass()->name; |
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$this->locator->addHandler($handler, $expected_message); |
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} |
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} |
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This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function. It has, however, found a similar but not annotated parameter which might be a good fit.
Consider the following example. The parameter
$ireland
is not defined by the methodfinale(...)
.The most likely cause is that the parameter was changed, but the annotation was not.