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Merge pull request #45 from codeliner/message-bus
Message bus
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
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@@ -19,7 +19,8 @@ | |
| /** | ||
| * Class Command | ||
| * | ||
| * Can be used as base class for commands. | ||
| * The class can be used as base class for commands, but it is no requirement. | ||
| * You can dispatch all kinds of messages as long as you register plugins that are able to handle your messages. | ||
| * | ||
| * @package Prooph\ServiceBus\Command | ||
| * @author Alexander Miertsch <[email protected]> | ||
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -14,97 +14,16 @@ | |
| use Prooph\ServiceBus\Exception\CommandDispatchException; | ||
| use Prooph\ServiceBus\Exception\RuntimeException; | ||
| use Prooph\ServiceBus\Process\CommandDispatch; | ||
| use Zend\EventManager\EventManager; | ||
| use Zend\EventManager\EventManagerAwareInterface; | ||
| use Zend\EventManager\EventManagerInterface; | ||
| use Zend\EventManager\ListenerAggregateInterface; | ||
| use Zend\Log\LoggerInterface; | ||
| use Zend\Stdlib\CallbackHandler; | ||
|
|
||
| /** | ||
| * Class CommandBus | ||
| * | ||
| * @package Prooph\ServiceBus | ||
| * @author Alexander Miertsch <[email protected]> | ||
| */ | ||
| class CommandBus implements EventManagerAwareInterface | ||
| class CommandBus extends MessageBus | ||
| { | ||
| /** | ||
| * @var LoggerInterface | ||
| */ | ||
| protected $logger; | ||
|
|
||
| /** | ||
| * @var EventManager | ||
| */ | ||
| protected $events; | ||
|
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||
| /** | ||
| * @param ListenerAggregateInterface|LoggerInterface $plugin | ||
| * @return $this | ||
| * @throws Exception\RuntimeException | ||
| */ | ||
| public function utilize($plugin) | ||
| { | ||
| if ($plugin instanceof ListenerAggregateInterface) { | ||
| $plugin->attach($this->getEventManager()); | ||
| } else if ($plugin instanceof LoggerInterface) { | ||
| $this->logger = $plugin; | ||
| } else { | ||
| throw new RuntimeException( | ||
| sprintf( | ||
| "CommandBus cannot use plugin of type %s.", | ||
| (is_object($plugin))? get_class($plugin) : gettype($plugin) | ||
| ) | ||
| ); | ||
| } | ||
|
|
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| return $this; | ||
| } | ||
|
|
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| /** | ||
| * @param ListenerAggregateInterface|LoggerInterface $plugin | ||
| * @return $this | ||
| * @throws Exception\RuntimeException | ||
| */ | ||
| public function deactivate($plugin) | ||
| { | ||
| if ($plugin instanceof ListenerAggregateInterface) { | ||
| $plugin->detach($this->getEventManager()); | ||
| } else if ($plugin instanceof LoggerInterface) { | ||
| $this->logger = null; | ||
| } else { | ||
| throw new RuntimeException( | ||
| sprintf( | ||
| "CommandBus cannot detach plugin of type %s.", | ||
| (is_object($plugin))? get_class($plugin) : gettype($plugin) | ||
| ) | ||
| ); | ||
| } | ||
|
|
||
| return $this; | ||
| } | ||
|
|
||
| /** | ||
| * @param string $eventName | ||
| * @param callable $listener | ||
| * @param int $priority | ||
| * @return \Zend\Stdlib\CallbackHandler | ||
| */ | ||
| public function on($eventName, $listener, $priority = 1) | ||
| { | ||
| return $this->getEventManager()->attach($eventName, $listener, $priority); | ||
| } | ||
|
|
||
| /** | ||
| * @param CallbackHandler $callbackHandler | ||
| * @return bool | ||
| */ | ||
| public function off(CallbackHandler $callbackHandler) | ||
| { | ||
| return $this->getEventManager()->detach($callbackHandler); | ||
| } | ||
|
|
||
| /** | ||
| * @param mixed $command | ||
| * @throws Exception\CommandDispatchException | ||
|
|
@@ -168,40 +87,6 @@ public function dispatch($command) | |
| $this->triggerFinalize($commandDispatch); | ||
| } | ||
|
|
||
| /** | ||
| * @param CommandDispatch $commandDispatch | ||
| * @throws Exception\RuntimeException | ||
| */ | ||
| protected function trigger(CommandDispatch $commandDispatch) | ||
| { | ||
| $result = $this->getEventManager()->trigger($commandDispatch); | ||
|
|
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| if ($result->stopped()) { | ||
| throw new RuntimeException("Dispatch has stopped unexpectedly."); | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * @param CommandDispatch $commandDispatch | ||
| */ | ||
| protected function triggerError(CommandDispatch $commandDispatch) | ||
| { | ||
| $commandDispatch->setName(CommandDispatch::HANDLE_ERROR); | ||
|
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| $this->getEventManager()->trigger($commandDispatch); | ||
| } | ||
|
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| /** | ||
| * @param CommandDispatch $commandDispatch | ||
| */ | ||
| protected function triggerFinalize(CommandDispatch $commandDispatch) | ||
| { | ||
| $commandDispatch->setName(CommandDispatch::FINALIZE); | ||
|
|
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| $this->getEventManager()->trigger($commandDispatch); | ||
| } | ||
|
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|
|
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| /** | ||
| * Inject an EventManager instance | ||
| * | ||
|
|
@@ -215,23 +100,7 @@ public function setEventManager(EventManagerInterface $eventManager) | |
| __CLASS__ | ||
| )); | ||
|
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| $this->events = $eventManager; | ||
| } | ||
|
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| /** | ||
| * Retrieve the event manager | ||
| * | ||
| * Lazy-loads an EventManager instance if none registered. | ||
| * | ||
| * @return EventManagerInterface | ||
| */ | ||
| public function getEventManager() | ||
| { | ||
| if (is_null($this->events)) { | ||
| $this->setEventManager(new EventManager()); | ||
| } | ||
|
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| return $this->events; | ||
| parent::setEventManager($eventManager); | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -19,7 +19,8 @@ | |
| /** | ||
| * Class Event | ||
| * | ||
| * Can be used as base event class | ||
| * The class can be used as base class for events, but it is no requirement. | ||
| * You can dispatch all kinds of messages as long as you register plugins that are able to handle your messages. | ||
| * | ||
| * @package Prooph\ServiceBus\Event | ||
| * @author Alexander Miertsch <[email protected]> | ||
|
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