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<?php |
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namespace TillKruss\LaravelTactician; |
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use ArrayAccess; |
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use ReflectionClass; |
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use ReflectionParameter; |
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use League\Tactician\CommandBus; |
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use Illuminate\Support\Collection; |
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use TillKruss\LaravelTactician\Exceptions\CanNotMapParameterValue; |
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use TillKruss\LaravelTactician\Contracts\Executer as ExecuterContract; |
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class Executer implements ExecuterContract |
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{ |
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/** |
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* The command bus instance. |
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* |
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* @var \League\Tactician\CommandBus |
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*/ |
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protected $bus; |
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/** |
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* Create a new command bus executer. |
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* |
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* @param \League\Tactician\CommandBus $bus |
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*/ |
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public function __construct(CommandBus $bus) |
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{ |
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$this->bus = $bus; |
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} |
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/** |
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* Executes a command in the command bus. |
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* |
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* @param object $command |
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* @return mixed |
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*/ |
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public function execute($command) |
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{ |
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return $this->bus->handle($command); |
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} |
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/** |
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* Marshal a command from the given class name and execute it in the command bus. |
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* |
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* @param string $command |
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* @param ArrayAccess $source |
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* @param array $extras |
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* @return mixed |
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*/ |
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public function executeFrom($command, ArrayAccess $source, array $extras = []) |
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{ |
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return $this->execute($this->marshal($command, $source, $extras)); |
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} |
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/** |
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* Marshal a command from the given class name and execute it in the command bus. |
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* |
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* @param string $command |
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* @param array $array |
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* @return mixed |
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*/ |
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public function executeFromArray($command, array $array) |
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{ |
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return $this->execute($this->marshalFromArray($command, $array)); |
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} |
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/** |
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* Marshal a command from the given array accessible object. |
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* |
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* @param string $command |
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* @param ArrayAccess $source |
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* @param array $extras |
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* @return object |
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*/ |
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protected function marshal($command, ArrayAccess $source, array $extras = []) |
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{ |
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$injected = []; |
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$reflection = new ReflectionClass($command); |
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if ($constructor = $reflection->getConstructor()) { |
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$injected = array_map(function ($parameter) use ($command, $source, $extras) { |
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return $this->getParameterValueForCommand($command, $source, $parameter, $extras); |
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}, $constructor->getParameters()); |
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} |
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return $reflection->newInstanceArgs($injected); |
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} |
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/** |
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* Marshal a command from the given array. |
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* |
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* @param string $command |
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* @param array $array |
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* @return object |
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*/ |
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protected function marshalFromArray($command, array $array) |
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{ |
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return $this->marshal($command, new Collection, $array); |
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} |
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/** |
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* Get a parameter value for a marshalled command. |
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* |
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* @param string $command |
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* @param ArrayAccess $source |
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* @param ReflectionParameter $parameter |
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* @param array $extras |
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* @return mixed |
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* |
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* @throws Exceptions\CanNotMapParameterValue |
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*/ |
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protected function getParameterValueForCommand( |
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$command, |
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ArrayAccess $source, |
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ReflectionParameter $parameter, |
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array $extras = [] |
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) { |
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if (array_key_exists($parameter->name, $extras)) { |
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return $extras[$parameter->name]; |
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} |
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if (isset($source[$parameter->name])) { |
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return $source[$parameter->name]; |
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} |
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if ($parameter->isDefaultValueAvailable()) { |
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return $parameter->getDefaultValue(); |
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} |
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throw CanNotMapParameterValue::forCommand($command, $parameter->name); |
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} |
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} |
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tillkruss /
laravel-tactician
