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<?php declare(strict_types=1); |
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/** |
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* This file is part of the daikon-cqrs/rabbitmq3-adapter project. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Daikon\RabbitMq3\Migration; |
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use Daikon\Dbal\Connector\ConnectorInterface; |
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use Daikon\Dbal\Migration\MigrationAdapterInterface; |
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use Daikon\Dbal\Migration\MigrationList; |
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use Daikon\RabbitMq3\Connector\RabbitMq3AdminConnector; |
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use DateTimeImmutable; |
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final class RabbitMq3MigrationAdapter implements MigrationAdapterInterface |
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{ |
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private RabbitMq3AdminConnector $connector; |
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private array $settings; |
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public function __construct(RabbitMq3AdminConnector $connector, array $settings = []) |
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{ |
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$this->connector = $connector; |
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$this->settings = $settings; |
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} |
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public function read(string $identifier): MigrationList |
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{ |
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$currentMigrations= $this->loadMigrations(); |
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$migrations = array_filter( |
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$currentMigrations, |
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fn(array $migration): bool => $migration['routing_key'] === $identifier |
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); |
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return $this->createMigrationList($migrations); |
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} |
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/* |
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* We do not have a way of storing the migration list as a data structure in RabbitMQ so instead |
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* we make use of internal exchange bindings with metadata as a way of tracking the migration state |
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* of the messaging infrastructure. |
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*/ |
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public function write(string $identifier, MigrationList $migrationList): void |
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{ |
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if ($migrationList->isEmpty()) { |
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return; |
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} |
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$exchange = $this->settings['exchange']; |
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$client = $this->connector->getConnection(); |
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$uri = sprintf('/api/bindings/%1$s/e/%2$s/e/%2$s', $this->getVhost(), $exchange); |
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// delete existing migration list entries before rewriting |
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foreach ($this->loadMigrations() as $migration) { |
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$client->delete($uri.'/'.$migration['properties_key']); |
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} |
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foreach ($migrationList as $migration) { |
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$client->post($uri, [ |
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'body' => json_encode([ |
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'routing_key' => $identifier, |
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'arguments' => $migration->toNative() |
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]) |
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]); |
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} |
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} |
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public function getConnector(): ConnectorInterface |
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{ |
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return $this->connector; |
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} |
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private function loadMigrations(): array |
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{ |
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$uri = sprintf('/api/exchanges/%s/%s/bindings/source', $this->getVhost(), $this->settings['exchange']); |
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$response = $this->connector->getConnection()->get($uri); |
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return json_decode((string)$response->getBody(), true); |
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} |
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private function createMigrationList(array $migrationData): MigrationList |
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{ |
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$migrations = []; |
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foreach ($migrationData as $migration) { |
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$migrationClass = $migration['arguments']['@type']; |
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$migrations[] = new $migrationClass(new DateTimeImmutable($migration['arguments']['executedAt'])); |
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} |
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return (new MigrationList($migrations))->sortByVersion(); |
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} |
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private function getVhost(): string |
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{ |
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$connectorSettings = $this->connector->getSettings(); |
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return $connectorSettings['vhost']; |
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} |
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} |
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daikon-cqrs /
rabbitmq3-adapter
