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package hu.unr.fiber.cardapi; |
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import java.net.URI; |
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import java.util.List; |
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import java.util.Optional; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.springframework.http.HttpStatus; |
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import org.springframework.http.ResponseEntity; |
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import org.springframework.web.bind.annotation.*; |
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import org.springframework.web.util.UriComponentsBuilder; |
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@RestController |
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public class CardController { |
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Logger logger = LoggerFactory.getLogger(CardController.class); |
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CardController(CardRepository cR) |
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{ |
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this.cardRepository = cR; |
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} |
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CardRepository cardRepository; |
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@GetMapping("/") |
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public String index() { |
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logger.info("GET /index called."); |
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return "Hateoas helyett: (/cards GET /card/{id} POST /card/{id} PUT /card/{id} DELETE /card/{id} )"; |
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} |
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@GetMapping("/cards") |
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public List<Card> cards() { |
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logger.info("GET /cards called, responded with items."); |
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return cardRepository.findAll(); |
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} |
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@GetMapping(value = "/card/{id}") |
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public ResponseEntity<Card> getCard(@PathVariable("id") long id) { |
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logger.info("GET /card/" + id + " called."); |
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if (!this.cardRepository.existsById(id)) { |
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return ResponseEntity.notFound().build(); |
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} |
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Card card = this.cardRepository.getOne(id); |
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return ResponseEntity.ok().body(card); |
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} |
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@DeleteMapping(value = "/card/{id}") |
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public ResponseEntity<String> deleteCard(@PathVariable("id") long id) { |
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logger.info("DELETE /card/" + id + " called"); |
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return Optional |
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.ofNullable(this.cardRepository.getOne(id)) |
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.map( |
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card -> { |
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this.cardRepository.delete(card); |
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this.cardRepository.flush(); |
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return ResponseEntity.ok().body("OK"); |
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} |
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) |
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.orElseGet(() -> ResponseEntity.status(HttpStatus.NOT_FOUND).body("No card available with id: "+ id)); |
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} |
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@PostMapping(value = "/card/{id}") |
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public ResponseEntity<String> updateCard(@PathVariable("id") long id, @RequestBody Card updatedCard, UriComponentsBuilder ucBuilder) { |
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logger.info("POST /card/"+ id + " called, card update."); |
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if (updatedCard.validId() && (updatedCard.getId() != id)) |
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{ |
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return ResponseEntity |
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.badRequest() |
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.body("Id field cannot be modified."); |
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} |
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Card originalCard = this.cardRepository.getOne(id); |
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if (originalCard.equals(updatedCard)) { |
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return ResponseEntity.accepted().body("Update has no changes."); |
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} |
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//card number updated, we have to check if its already exists |
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if (!originalCard.getNumber().equals(updatedCard.getNumber()) && this.getCardByNumber(updatedCard.getNumber()) != null) { |
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logger.error("Unable to update card with id {}. A different Card with number {} already exist", originalCard.getId(), updatedCard.getNumber()); |
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return ResponseEntity.status(HttpStatus.CONFLICT).body("Card with number " + updatedCard.getNumber() + " already exists."); |
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} |
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originalCard.update(updatedCard); |
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this.cardRepository.flush(); |
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return ResponseEntity.accepted().body("OK"); |
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} |
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private Card getCardByNumber(String number) { |
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Long id = cardRepository.findIdByNumber(number); |
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if (id == null) { |
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return null; |
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} |
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return cardRepository.getOne(id); |
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} |
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@PostMapping(value = "/card") |
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public ResponseEntity<String> createCard(@RequestBody Card card, UriComponentsBuilder ucBuilder) { |
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logger.info("Creating Card : {}", card.getNumber()); |
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if (this.getCardByNumber(card.getNumber()) != null) { |
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logger.error("Unable to create. A Card with number {} already exist", card.getNumber()); |
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return ResponseEntity.status(HttpStatus.CONFLICT).body("Card with number "+ card.getNumber() + " already exists."); |
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} |
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this.cardRepository.saveAndFlush(card); |
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URI newCardURI = ucBuilder.path("/card/{id}").buildAndExpand(card.getId()).toUri(); |
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return ResponseEntity |
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.created(newCardURI) |
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.body(newCardURI.toString()); |
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} |
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} |