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<?php |
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namespace App\Infrastructure\Events; |
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use RuntimeException; |
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use Symfony\Component\Uid\Ulid; |
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/** |
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* This is a base class for all Application Inbound Events. |
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* An Inbound Event is an Event that has originated from some other, possibly remote Application/Module. |
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* |
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* In the Context of this Demo, each Inbound Event is paired with a corresponding Outbound Event. |
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* The pairing is based on an Event Name (string). |
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*/ |
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abstract class ApplicationInboundEvent |
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{ |
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private Ulid $_eventId; |
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/** |
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* @param array $data |
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*/ |
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public function __construct( |
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private array $data |
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) |
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{ |
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$this->_eventId = $this->data['_eventId']; |
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} |
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67 |
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/** |
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* @param string $fieldName |
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* @param bool $nullable |
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* @return Ulid|null |
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*/ |
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protected function ulid(string $fieldName, bool $nullable = false): ?Ulid |
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{ |
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$value = $this->value($fieldName, $nullable); |
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if ($value === null) { |
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return null; |
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} |
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return $value instanceof Ulid ? $value : new Ulid($value); |
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} |
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/** |
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* @param string $fieldName |
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* @param bool $nullable |
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* @return array|null |
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*/ |
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protected function array(string $fieldName, bool $nullable = false): ?array |
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{ |
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$value = $this->value($fieldName, $nullable); |
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if ($value === null) { |
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return null; |
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} |
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return is_array($value) ? $value : json_decode($value, true); |
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} |
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/** |
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* @param string $fieldName |
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* @param bool $nullable |
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* @return int|null |
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*/ |
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protected function int(string $fieldName, bool $nullable = false): ?int |
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{ |
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$value = $this->value($fieldName, $nullable); |
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if ($value === null) { |
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return null; |
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} |
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return is_int($value) ? $value : intval($value); |
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} |
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/** |
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* @param string $fieldName |
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* @param bool $nullable |
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* @return \DateTime|null |
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*/ |
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protected function dateTime(string $fieldName, bool $nullable = false): ?\DateTime |
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{ |
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$value = $this->value($fieldName, $nullable); |
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if ($value === null) { |
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return null; |
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} |
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if ($value instanceof \DateTime) { |
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return $value; |
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} else { |
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$dateTime = \DateTime::createFromFormat("Y-m-d H:i:s", $value); |
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if (!$dateTime) { |
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throw new RuntimeException(sprintf("Invalid Date Time: '%s'", $value)); |
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} |
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return $dateTime; |
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} |
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} |
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/** |
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* @param string $fieldName |
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* @param bool $nullable |
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* @return string|null |
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*/ |
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protected function string(string $fieldName, bool $nullable = false): ?string |
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{ |
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$value = $this->value($fieldName, $nullable); |
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if ($value == null) { |
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return null; |
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} |
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return is_string($value) ? $value : (string)$value; |
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} |
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/** |
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* @param string $fieldName |
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* @param bool $nullable |
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* @return mixed |
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*/ |
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private function value(string $fieldName, bool $nullable = false): mixed |
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{ |
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if (!isset($this->data[$fieldName])) { |
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if ($nullable) { |
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return null; |
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} |
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$name = call_user_func(get_called_class() . '::getName'); |
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throw new RuntimeException("Event $name requires a field '$fieldName' to be present"); |
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} |
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return $this->data[$fieldName]; |
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} |
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/** |
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* @return Ulid |
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*/ |
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public function getEventId(): Ulid |
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{ |
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return $this->_eventId; |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString(): string |
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{ |
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return json_encode($this->data); |
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} |
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141
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public static abstract function getName(): string; |
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143
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144
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} |
eXsio /
php-symfony-arch
