Evoluindo sua aplicação - Arquitetura Hexagonal

Apresentado no dia 08/10/2017 no PHPeste em Fortaleza-CE

Transcript

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9. 1 <?php 2 namespace App\Http; 3 4 use MyLovedFramework\Controller; 5 use MyLovedFramework\Request; 6 7 class BookController extends Controller 8 { 9 // ... 10 public function purchaseAction(Request $request) 11 { 12 if ($bookId = $request->query->get('bookId')) { 13 throw new \InvalidArgumentException(sprintf('The book %s cannot be found', $bookId)); 14 } 15 16 try { 17 $this->entityManager->beginTransaction(); 18 19 $book = $this->bookRepository->find($bookId); 20 21 $buyer = $this->currentSession()->user(); 22 $buyer->purchase($book); 23 24 $this->userRepository->persist($buyer); 25 26 $this->logger->log('info', sprintf('The book %s was purchased by user %s', $bookId, $buyer->getId())); 27 28 $this->mailer->send( 29 $buyer->getEmailAddress(), 30 'Your purchase is being processed', 31 'template_purchase.html' 32 ); 33 34 $this->entityManager->commit(); 35 36 return new Response(200, 'You purchase has been processed!'); 37 } catch (\Exception $e) { 38 $this->entityManager->rollback(); 39 $this->logger->log('error', $e->getMessage()); 40 return new Response(500, 'Problem to processing request'); 41 } 42 } 43 }
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21. 1 <?php 2 namespace App\Http; 3 4 use MyLovedFramework\Controller; 5 use MyLovedFramework\Request; 6 7 class BookController extends Controller 8 { 9 // ... 10 public function purchaseAction(Request $request) 11 { 12 if ($bookId = $request->query->get('bookId')) { 13 throw new \InvalidArgumentException(sprintf('The book %s cannot be found', $bookId)); 14 } 15 16 try { 17 $this->entityManager->beginTransaction(); 18 19 $book = $this->bookRepository->find($bookId); 20 21 $buyer = $this->currentSession()->user(); 22 $buyer->purchase($book); 23 24 $this->userRepository->persist($buyer); 25 26 $this->logger->log('info', sprintf('The book %s was purchased by user %s', $bookId, $buyer->getId())); 27 28 $this->mailer->send( 29 $buyer->getEmailAddress(), 30 'Your purchase is being processed', 31 'template_purchase.html' 32 ); 33 34 $this->entityManager->commit(); 35 36 return new Response(200, 'You purchase has been processed!'); 37 } catch (\Exception $e) { 38 $this->entityManager->rollback(); 39 $this->logger->log('error', $e->getMessage()); 40 return new Response(500, 'Problem to processing request'); 41 } 42 } 43 }
22. 1 <?php 2 namespace App\Http; 3 4 use MyLovedFramework\Controller; 5 use MyLovedFramework\Request; 6 7 class BookController extends Controller 8 { 9 // ... 10 public function purchaseAction(Request $request) 11 { 12 if ($bookId = $request->query->get('bookId')) { 13 throw new \InvalidArgumentException(sprintf('The book %s cannot be found', $bookId)); 14 } 15 16 try { 17 $this->entityManager->beginTransaction(); 18 19 $book = $this->bookRepository->find($bookId); 20 21 $buyer = $this->currentSession()->user(); 22 $buyer->purchase($book); 23 24 $this->userRepository->persist($buyer); 25 26 $this->logger->log('info', sprintf('The book %s was purchased by user %s', $bookId, $buyer->getId())); 27 28 $this->mailer->send( 29 $buyer->getEmailAddress(), 30 'Your purchase is being processed', 31 'template_purchase.html' 32 ); 33 34 $this->entityManager->commit(); 35 36 return new Response(200, 'You purchase has been processed!'); 37 } catch (\Exception $e) { 38 $this->entityManager->rollback(); 39 $this->logger->log('error', $e->getMessage()); 40 return new Response(500, 'Problem to processing request'); 41 } 42 } 43 } $¶%*(0
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    5"3&'" <?php final class PurchaseBook { private $bookId; private $readerId; public function __construct(BookId $bookId, ReaderId $readerId) { $this->bookId = $bookId; $this->readerId = $readerId; } }
43. *.65¥7&- <?php final class PurchaseBook { private $bookId; private $readerId; public function __construct(BookId $bookId, ReaderId $readerId) { $this->bookId = $bookId; $this->readerId = $readerId; } public function bookId() : BookId { return $this->bookId; } public function readerId() : ReaderId { return $this->readerId; } }
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47. <?php namespace App\Handler; class PuchaseBookHandler { public function __invoke(PurchaseCommand $command) : void { try { $this->entityManager->beginTransaction(); $buyer = $this->userRepository->find($command->buyerId()); $book = $this->bookRepository->find($command->bookId()); $buyer->purchase($book); $this->userRepository->persist($buyer); $this->entityManager->commit(); $this->mailer->send( $buyer->getEmailAddress(), 'Your purchase is being processed', 'template_purchase.html' ); // Logs the purchase } catch (\Exception $e) { $this->entityManager->rollback(); // Logs when error is raised } } }
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51. <?php namespace Infrastructure\Command; class RegisterMemberConsoleCommand extends ConsoleCommand { public function execute(Input $input) { $command = new RegisterMember( $input->getArgument('emailAddress'), $input->getArgument('password') ); $this->commandBus()->handle($command); } }
52. Http Request Controller Form INFRASTRUCTURE APPLICATION DOMAIN PurchaseCommand PurchaseHandler Entity Repository
53. <?php namespace App\Http; use MyLovedFramework\Controller; use MyLovedFramework\Request; class BookController extends Controller { // ... public function purchaseAction(Request $request) { $userId = $this->session->currentUser()->id(); $bookId = $request->get('bookId'); $command = new PurchaseBook($bookId, $userId); $this->commandBus->handle($command); // ... } }
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58. <?php class SimpleCommandBus implements CommandBus { private $handlerMap; public function __construct($handlerMap = []) { $this->handlerMap = $handlerMap; } public function handle($command) : void { // .. $this->handlerMap(get_class($command))->handle($command); // .. } }
59. $handler = new PurchaseBookHandler(); $handlerMap = [ 'PurchaseCommand' => $handler ]; $command = new PurchaseCommand(); $commandBus = new SimpleCommandBus($handlerMap); $commandBus->handle($command);
60. <?php namespace App\Book\Application; use App\Book\Domain\PurchaseCommand; class PurchaseBookHandler { public function __invoke(PurchaseCommand $command) { try { $this->entityManager->beginTransaction(); $buyer = $this->userRepository->find($command->buyerId()); $book = $this->bookRepository->find($command->bookId()); $buyer->purchase($book); $this->userRepository->persist($buyer); $this->entityManager->commit(); $this->mailer->send( $buyer->getEmailAddress(), 'Your purchase is being processed', 'template_purchase.html' ); $this->logger->log('success', 'Your purchase is being processed'); // Logs the purchase } catch (\Exception $e) { $this->entityManager->rollback(); $this->logger->log('error', sprintf('Error to purchase book %s.', $command->bookId())); } } }
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65. <?php namespace App\Book\Application; use App\Book\Domain\PurchaseCommand; class PurchaseBookHandler { public function __invoke(PurchaseCommand $command) { try { $buyer = $this->userRepository->find($command->buyerId()); $book = $this->bookRepository->find($command->bookId()); $buyer->purchase($book); $this->userRepository->persist($buyer); $this->mailer->send( $buyer->getEmailAddress(), 'Your purchase is being processed', 'template_purchase.html' ); $this->logger->log('success', 'Your purchase is being processed’); } catch (\Exception $e) { $this->logger->log('error', sprintf('Error to purchase book %s.', $command->bookId())); } } }
66. <?php namespace League\Tactician\Logger; // .. class LoggerMiddleware implements Middleware { // ... public function execute($command, callable $next) { $this->formatter->logCommandReceived($this->logger, $command); try { $returnValue = $next($command); } catch (Exception $e) { $this->formatter->logCommandFailed($this->logger, $command, $e); throw $e; } $this->formatter->logCommandSucceeded($this->logger, $command, $returnValue); return $returnValue; } } $"40
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68. <?php namespace App\Book\Application; use App\Book\Domain\PurchaseCommand; class PurchaseBookHandler { public function __invoke(PurchaseCommand $command) { try { $buyer = $this->userRepository->find($command->buyerId()); $book = $this->bookRepository->find($command->bookId()); $buyer->purchase($book); $this->userRepository->persist($buyer); $this->mailer->send( $buyer->getEmailAddress(), 'Your purchase is being processed', 'template_purchase.html' ); } catch (\Exception $e) { } } }
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73. <?php namespace App\Book\Application; use App\Book\Domain\PurchaseCommand; class PurchaseBookHandler { public function __invoke(PurchaseCommand $command) : void { $buyer = $this->userRepository->find($command->buyerId()); $book = $this->bookRepository->find($command->bookId()); $buyer->purchase($book); $this->userRepository->persist($buyer); $this->mailer->send( $buyer->getEmailAddress(), 'Your purchase is being processed', 'template_purchase.html' ); } } <?php namespace App\Http; use MyLovedFramework\Controller; use MyLovedFramework\Request; class BookController extends Controller { // ... public function purchaseAction(Request $request) { $userId = $this->session->currentUser()->id(); $bookId = $request->get('bookId'); $command = new PurchaseBook($bookId, $userId); $this->commandHandler->handle($command); // ... } }
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