Added input validation for creating events

client/data/src/main/java/res/DataController.java

@@ -29,7 +29,7 @@ public class DataController {
         try {
             System.out.println(httpRequest.sendPostRequest(ADD_EVENT_ENDPOINT, event.getAsUrlParam()));
         } catch (Exception e) {
-            e.printStackTrace();
+            throw new RuntimeException("Es konnte keine Verbindung mit dem Server hergestellt werden.");
         }
     }
 

client/data/src/main/java/res/Event.java

@@ -2,9 +2,14 @@ package res;
 
 import com.sun.jdi.event.StepEvent;
 
+import java.time.Duration;
+import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.regex.PatternSyntaxException;
 
 public class Event {
 
@@ -61,7 +66,23 @@ public class Event {
                  String end,
                  LocalDateTime date,
                  int ownerId
-    ) {
+    ) throws IllegalArgumentException{
+        if(name.length() < 3){
+            throw new IllegalArgumentException("Der Name muss eine L\u00e4nge von 3 haben.");
+        }
+        Pattern pattern = Pattern.compile("[A-Za-zÄÖÜäöü0-9 =!?+*/$%€.:,;_<>()-]*");
+        Matcher matcher = pattern.matcher(name);
+        if(!matcher.matches()){
+            throw new IllegalArgumentException("Der Name Darf nur aus Zahlen, Buchstaben und folgenden Sonderzeichen bestehen: =!?+*/$%€.:,;_ <>()-");
+        }
+        if(priority < 0){
+            throw new IllegalArgumentException("Bitte eine Priorit\u00e4t w\u00e4hlen.");
+        }
+        LocalDateTime today = LocalDateTime.now().toLocalDate().atStartOfDay();
+        if(Duration.between(today, date).isNegative()){
+            throw new IllegalArgumentException("Das Datum muss in der Zukunft liegen.");
+        }
+
         this.name = name;
         this.priority = priority;
         this.isFullDay = isFullDay;