Hendrik Jungnitsch
2023-09-19 de447d5f944d19d617181003fcacd3674976933a
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package de.gedoplan.seminar.jpa.exercise.rest;
 
import java.util.Optional;
 
import org.slf4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.server.ResponseStatusException;
 
import de.gedoplan.seminar.jpa.exercise.domain.Highway;
import de.gedoplan.seminar.jpa.exercise.domain.Junction;
import de.gedoplan.seminar.jpa.exercise.repository.HighwayRepository;
import de.gedoplan.seminar.jpa.exercise.repository.JunctionRepository;
 
@RestController
@RequestMapping("/junctions")
public class JunctionResource {
 
 
 
  @Autowired
  Logger logger;
 
  @Autowired
  JunctionRepository junctionRepository;
  
  @Autowired
  HighwayRepository highwayRepository;
 
  /**
   * Exercise JPA_BASICS_02: Insert test data.
   */
  @PostMapping(consumes = MediaType.APPLICATION_JSON_VALUE)
  public void insert(@RequestBody Junction junction) {
    this.logger.debug("----- insert -----");
 
    this.junctionRepository.save(junction);
    
    this.logger.debug("Inserted: " + junction);
  }
  
  /**
   * Exercise JPA_BASICS_04
   */
  @GetMapping("loadByName")
  public Junction loadByName(@RequestParam("name") String name) {
    this.logger.debug("----- loadByName -----");
 
    Optional<Junction> junction = this.junctionRepository.readByName(name);
    
    junction.ifPresent(j -> this.logger.debug(name+": "+j));
    return junction.orElseThrow(() -> new ResponseStatusException(HttpStatus.NOT_FOUND));
  }
  
  @Transactional
  @PutMapping("/{junctionId}/assignToHighway/{highwayId}")
  public void assignToHighway(@PathVariable Integer junctionId, @PathVariable Integer highwayId) {
      Highway highwayRef = highwayRepository.getReferenceById(highwayId);
      Junction junction = junctionRepository.findById(junctionId).orElseThrow();
      junction.setHighway(highwayRef);
  }
}