implemented api for createStation and fixed some bugs in other methods

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

@@ -10,8 +10,8 @@ import org.springframework.http.ResponseEntity;
 import org.springframework.security.crypto.bcrypt.BCrypt;
 import org.springframework.web.bind.annotation.*;
 
-import java.time.Clock;
 import java.util.Optional;
+import java.util.Random;
 import java.util.concurrent.atomic.AtomicLong;
 
 @RestController
@@ -120,13 +120,64 @@ public class Controller {
   }
 
   @CrossOrigin(origins = "http://localhost:8081") // only for dev purpose
-  @RequestMapping("api/logout")
+  @RequestMapping("/api/logout")
   @ResponseBody
   boolean logout(@RequestParam String token) {
 
     User user = userRepository.findByUsername(token.substring(0, token.indexOf("$")));
-    user.setToken("abgemeldet");
+    user.setToken("offline");
     userRepository.save(user);
     return true;
   }
+
+  @CrossOrigin(origins = "http://localhost:8081") // only for dev purpose
+  @RequestMapping("/api/createStation")
+  @ResponseBody
+  Station createStation(@RequestParam String description,
+                        @RequestParam String lattitude,
+                        @RequestParam String longitude,
+                        @RequestParam String solution) throws IllegalParameterException {
+
+    if (description.length() == 0 || lattitude.length() == 0 || longitude.length() == 0 || solution.length() == 0) {
+      throw new IllegalParameterException("Fields can´t be empty");
+    } else {
+
+      Station station = new Station();
+      station.setDescription(description);
+      station.setSolution(solution);
+      Random r = new Random();
+      int low = 100000;
+      int high = 1000000;
+      int code = r.nextInt(high-low) + low;
+      station.setCode(code);
+
+      try {
+        double latti = Double.valueOf(lattitude);
+        if (-90 <= latti && latti <= 90) {
+          station.setLattitude(latti);
+        } else {
+          throw new IllegalParameterException("Lattitude has to be in the range of -90 to 90 degrees");
+        }
+      } catch (NumberFormatException e) {
+        throw new NumberFormatException("Lattitude hast to be a decimal number");
+      }
+
+      try {
+        double longi = Double.valueOf(longitude);
+        if (-180 <= longi && longi <= 180) {
+          station.setLongitude(longi);
+        } else {
+          throw new IllegalParameterException("Longitude has to be in the range of -180 to 180 degrees");
+        }
+      } catch (NumberFormatException e) {
+        throw new NumberFormatException("Longitude hast to be a decimal number");
+      }
+
+      stationRepository.save(station);
+
+      return station;
+
+    }
+  }
+
 }