slight changes to package structure + naming

src/main/java/mops/gruppen2/service/GroupService.java

@@ -0,0 +1,16 @@
+package mops.gruppen2.service;
+
+import mops.gruppen2.domain.Group;
+import mops.gruppen2.domain.event.Event;
+import org.springframework.stereotype.Service;
+import java.util.List;
+
+@Service
+public class GroupService {
+
+	Group buildGroup(List<Event> eventList){
+		Group newGroup = new Group();
+		eventList.forEach(newGroup::applyEvent);
+		return newGroup;
+	}
+}

src/main/java/mops/gruppen2/service/KeyCloakService.java

@@ -0,0 +1,27 @@
+package mops.gruppen2.service;
+
+import mops.gruppen2.security.Account;
+import org.keycloak.KeycloakPrincipal;
+import org.keycloak.adapters.springsecurity.token.KeycloakAuthenticationToken;
+import org.springframework.stereotype.Service;
+
+@Service
+public class KeyCloakService {
+
+    /**
+     * Creates an Account.
+     *
+     * @param token Ein toller token
+     * @return Account with current userdata
+     */
+    public Account createAccountFromPrincipal(KeycloakAuthenticationToken token) {
+        KeycloakPrincipal principal = (KeycloakPrincipal) token.getPrincipal();
+        return new Account(
+                principal.getName(),
+                principal.getKeycloakSecurityContext().getIdToken().getEmail(),
+                null,
+                principal.getKeycloakSecurityContext().getIdToken().getGivenName(),
+                principal.getKeycloakSecurityContext().getIdToken().getFamilyName(),
+                token.getAccount().getRoles());
+    }
+}

src/main/java/mops/gruppen2/service/SerializationService.java

@@ -0,0 +1,10 @@
+package mops.gruppen2.service;
+
+import org.springframework.stereotype.Service;
+
+/**
+ * Übersetzt und baut
+ */
+@Service
+public class SerializationService {
+}