Started reorganising backend code

src/main/java/hhn/labsw/bugageocaching/controller/Controller.java

@@ -9,20 +9,17 @@ import io.jsonwebtoken.Claims;
 import io.jsonwebtoken.ExpiredJwtException;
 import io.jsonwebtoken.Jwts;
 import io.jsonwebtoken.SignatureAlgorithm;
-import io.jsonwebtoken.security.Keys;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.crypto.bcrypt.BCrypt;
 import org.springframework.web.bind.annotation.*;
 
 import javax.annotation.PostConstruct;
-import javax.xml.bind.DatatypeConverter;
-import java.security.Key;
 import java.security.SecureRandom;
 import java.util.*;
 import java.util.concurrent.atomic.AtomicLong;
-import java.util.logging.Logger;
+
+import static hhn.labsw.bugageocaching.util.CacheConstructionUtil.*;
 
 @RestController
 public class Controller {
@@ -103,14 +100,6 @@ public class Controller {
       return ResponseEntity.status(200).body(token);
     }
 
-    /*if (BCrypt.checkpw(user.getPassword(), userRepository.findByUsername(user.getUsername()).getPassword())) {
-      String token = user.getUsername() + BCrypt.hashpw(String.valueOf(System.currentTimeMillis() + counter.incrementAndGet()), BCrypt.gensalt());
-      String hashedToken = BCrypt.hashpw(token, BCrypt.gensalt());
-      userRepository.findByUsername(user.getUsername()).setToken(hashedToken);
-      userRepository.save(userRepository.findByUsername(user.getUsername()));
-      //return ResponseEntity.ok(new Gson().toJson(token));
-      return ResponseEntity.status(200).body(token);
-    }*/
     return ResponseEntity.status(400).body("Es ist ein Fehler aufgetreten");
   }
 
@@ -176,113 +165,15 @@ public class Controller {
     }
   }
 
-  //Eigentlich brauchen wir mit JWT keine Logout Methode mehr.
-  @CrossOrigin(origins = "http://localhost:8081") // only for dev purpose
-  @RequestMapping("/api/logout")
-  @ResponseBody
-  public ResponseEntity logout(@RequestParam String token) {
-//    System.out.println("logout");
-    /*User user = userRepository.findByUsername(token.substring(0, token.indexOf("$")));
-//    System.out.println(token);
-//    System.out.println(user.getToken());
-    if (user == null || user.getToken().isEmpty()) {
-      return ResponseEntity.status(404).body("User was not found");
-    }
-    user.setToken(null);
-    userRepository.save(user);*/
-    return ResponseEntity.status(200).body("Token was deleted");
-  }
-
   @CrossOrigin(origins = "http://localhost:8081") // only for dev purpose
   @RequestMapping("/api/createCache")
   @ResponseBody
   public ResponseEntity createCache(@RequestBody Cache cache) {
-
-    // Stationen werden in die Datenbank eingetragen
-    for (Station station : cache.getStationen()) {
-      ResponseEntity response = createStation(station);
-      if (response.getStatusCodeValue() == 400) {
-        deleteStationen(cache);
-        return response;
-      }
-    }
-
-    // Caches werden in die Datenbank eingetragen
-    if (cache.getDescription().length() == 0 || cache.getName().length() == 0 || cache.getRankingPoints() == 0.0 || cache.getStationen().size() == 0) {
-      deleteStationen(cache);
-      return ResponseEntity.status(400).body("cache fields can´t be empty");
-    }
-
-    for (Cache cache1 : cacheRepository.findAll()) {
-      if (cache1.getName().equals(cache.getName())) {
-        deleteStationen(cache);
-        return ResponseEntity.status(400).body("name is already taken");
-      }
-    }
-
-    if (cache.getRankingPoints() < 0) {
-      deleteStationen(cache);
-      return ResponseEntity.status(400).body("Ranking points has to be a positive number");
-    }
-
-    cacheRepository.save(cache);
-
-    for (int i = 0; i + 1 < cache.getStationen().size(); i++) {
-      StationReihenfolge stationReihenfolge = new StationReihenfolge();
-      stationReihenfolge.setCache(cache);
-      stationReihenfolge.setStation(cache.getStationen().get(i));
-      stationReihenfolge.setNachfolgeStation(cache.getStationen().get(i + 1));
-      stationReihenfolgeRepository.save(stationReihenfolge);
-    }
-
-    return ResponseEntity.status(200).body(new Gson().toJson(cache));
+    return createCacheUtil(cache);
   }
 
-  public ResponseEntity createStation(Station station) {
 
-    if (station.getDescription().length() == 0 || station.getLattitude() == 0.0 || station.getLongitude() == 0.0 || station.getSolution().length() == 0) {
-      return ResponseEntity.status(400).body("station fields can´t be empty");
-    }
 
-    if (station.getLattitude() < -90 || station.getLattitude() > 90) {
-      return ResponseEntity.status(400).body("Lattitude has to be between -90 and 90 Degree");
-    }
-
-    if (station.getLongitude() < -180 || station.getLongitude() > 180) {
-      return ResponseEntity.status(400).body("Longitude has to be in the range of -180 to 180 degrees");
-    }
-
-    Random r = new Random();
-    int low = 100000;
-    int high = 1000000;
-    int code = 0;
-    boolean unique = false;
-    while (!unique) {
-      code = r.nextInt(high - low) + low;
-      unique = true;
-      for (Station station1 : stationRepository.findAll()) {
-        if (station1.getCode() == code) {
-          unique = false;
-        }
-      }
-    }
-
-    station.setCode(code);
-
-    stationRepository.save(station);
-
-    return ResponseEntity.status(200).body(new Gson().toJson(station));
-  }
-
-  public void deleteStationen(Cache cache) {
-    for (Station station : cache.getStationen()) {
-      try {
-        stationRepository.delete(station);
-      } catch (IllegalArgumentException e) { // station is null
-        // do nothing
-      }
-    }
-  }
 
 
   @CrossOrigin(origins = "http://localhost:8081") // only for dev purpose

src/main/java/hhn/labsw/bugageocaching/entities/Station.java

@@ -2,6 +2,7 @@ package hhn.labsw.bugageocaching.entities;
 
 
 import javax.persistence.*;
+import javax.validation.constraints.NotNull;
 
 @Entity
 @Table
@@ -11,10 +12,20 @@ public class Station {
   @GeneratedValue
   private int id;
 
+  @NotNull
   private String description;
+
+  @NotNull
   private double longitude;
+
+  @NotNull
   private double lattitude;
+
+  @Column(unique = true)
+  @NotNull
   private int code;
+
+  @NotNull
   private String solution;
 
   public Station() {

src/main/java/hhn/labsw/bugageocaching/util/CacheConstructionUtil.java

@@ -0,0 +1,115 @@
+package hhn.labsw.bugageocaching.util;
+
+import com.google.gson.Gson;
+import hhn.labsw.bugageocaching.entities.Cache;
+import hhn.labsw.bugageocaching.entities.Station;
+import hhn.labsw.bugageocaching.entities.StationReihenfolge;
+import hhn.labsw.bugageocaching.repositories.CacheRepository;
+import hhn.labsw.bugageocaching.repositories.StationRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+
+import javax.persistence.RollbackException;
+import java.util.Random;
+
+public class CacheConstructionUtil {
+
+  @Autowired
+  static StationRepository stationRepository;
+
+  @Autowired
+  static CacheRepository cacheRepository;
+
+  public static ResponseEntity createCacheUtil(Cache cache){
+
+    // Stationen werden in die Datenbank eingetragen
+    for (Station station : cache.getStationen()) {
+      ResponseEntity response = createStationUtil(station);
+      if (response.getStatusCodeValue() == 400) {
+        deleteStationenUtil(cache);
+        return response;
+      }
+    }
+
+    // Caches werden in die Datenbank eingetragen
+    if (cache.getDescription().length() == 0 || cache.getName().length() == 0 || cache.getRankingPoints() == 0.0 || cache.getStationen().size() == 0) {
+      deleteStationenUtil(cache);
+      return ResponseEntity.status(400).body("cache fields can´t be empty");
+    }
+
+    for (Cache cache1 : cacheRepository.findAll()) {
+      if (cache1.getName().equals(cache.getName())) {
+        deleteStationenUtil(cache);
+        return ResponseEntity.status(400).body("name is already taken");
+      }
+    }
+
+    if (cache.getRankingPoints() < 0) {
+      deleteStationenUtil(cache);
+      return ResponseEntity.status(400).body("Ranking points has to be a positive number");
+    }
+
+    cacheRepository.save(cache);
+
+    /*for (int i = 0; i + 1 < cache.getStationen().size(); i++) {
+      StationReihenfolge stationReihenfolge = new StationReihenfolge();
+      stationReihenfolge.setCache(cache);
+      stationReihenfolge.setStation(cache.getStationen().get(i));
+      stationReihenfolge.setNachfolgeStation(cache.getStationen().get(i + 1));
+      stationReihenfolgeRepository.save(stationReihenfolge);
+    }*/
+
+    return ResponseEntity.status(200).body(new Gson().toJson(cache));
+  }
+
+  public static ResponseEntity createStationUtil(Station station) {
+
+    if (station.getDescription().length() == 0 || station.getLattitude() == 0.0 || station.getLongitude() == 0.0 || station.getSolution().length() == 0) {
+      return ResponseEntity.status(400).body("station fields can´t be empty");
+    }
+
+    if (station.getLattitude() < -90 || station.getLattitude() > 90) {
+      return ResponseEntity.status(400).body("Lattitude has to be between -90 and 90 Degree");
+    }
+
+    if (station.getLongitude() < -180 || station.getLongitude() > 180) {
+      return ResponseEntity.status(400).body("Longitude has to be in the range of -180 to 180 degrees");
+    }
+
+    Random r = new Random();
+    int low = 100000;
+    int high = 1000000;
+    int code = 0;
+    boolean unique = false;
+
+    while (!unique) {
+      code = r.nextInt(high - low) + low;
+      unique = true;
+      for (Station station1 : stationRepository.findAll()) {
+        if (station1.getCode() == code) {
+          unique = false;
+        }
+      }
+    }
+
+    try {
+      station.setCode(code);
+    }catch (RollbackException e){
+      return ResponseEntity.status(400).body("There was an error generating the unique code");
+    }
+
+    stationRepository.save(station);
+
+    return ResponseEntity.status(200).body(new Gson().toJson(station));
+  }
+
+  public static void deleteStationenUtil(Cache cache) {
+    for (Station station : cache.getStationen()) {
+      try {
+        stationRepository.delete(station);
+      } catch (IllegalArgumentException e) { // station is null
+        // do nothing
+      }
+    }
+  }
+}