added Creating Groups to frontend and saving them in Database. Also prepared some Methods for Snapshot db

src/main/java/mops/gruppen2/controller/Gruppen2Controller.java

@@ -1,22 +1,29 @@
 package mops.gruppen2.controller;
 
+import mops.gruppen2.domain.event.CreateGroupEvent;
+import mops.gruppen2.service.EventService;
+import mops.gruppen2.service.GroupService;
 import mops.gruppen2.service.KeyCloakService;
 import org.keycloak.adapters.springsecurity.token.KeycloakAuthenticationToken;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.*;
 
 import javax.annotation.security.RolesAllowed;
+import javax.swing.*;
 
 @Controller
 @RequestMapping("/gruppen2")
 public class Gruppen2Controller {
 
     private final KeyCloakService keyCloakService;
+    private final EventService eventService;
+    private final GroupService groupService;
 
-    public Gruppen2Controller(KeyCloakService keyCloakService) {
+    public Gruppen2Controller(KeyCloakService keyCloakService, EventService eventService, GroupService groupService) {
         this.keyCloakService = keyCloakService;
+        this.eventService = eventService;
+        this.groupService = groupService;
     }
 
     /**Zeigt die index.html an.
@@ -46,5 +53,17 @@ public class Gruppen2Controller {
         return "search";
     }
 
+    @PostMapping("/createGroup")
+    public String pCreateGroup(KeycloakAuthenticationToken token,
+                               @RequestParam(value = "title") String title,
+                               @RequestParam(value = "beschreibung") String beschreibung) {
+
+        //Hier muss alles in eine separate Klasse
+        CreateGroupEvent createGroupEvent = new CreateGroupEvent(eventService.checkGroup(), "faker", title, beschreibung);
+        eventService.saveEvent(createGroupEvent);
+        groupService.buildGroupFromEvent(createGroupEvent);
+
+        return "redirect:/";
+    }
 
 }

src/main/java/mops/gruppen2/domain/EventDTO.java

@@ -1,7 +1,6 @@
 package mops.gruppen2.domain;
 
 import lombok.Data;
-import lombok.Value;
 import org.springframework.data.annotation.Id;
 import org.springframework.data.relational.core.mapping.Table;
 
@@ -9,8 +8,8 @@ import org.springframework.data.relational.core.mapping.Table;
 @Data
 public class EventDTO {
     @Id
-    long event_id;
-    long group_id;
+    Long event_id;
+    Long group_id;
     String user_id;
     String event_payload;
 }

src/main/java/mops/gruppen2/domain/event/AddUserEvent.java

@@ -16,14 +16,14 @@ public class AddUserEvent extends Event {
     String familyname;
     String email;
 
-    public AddUserEvent(long event_id, long group_id, String user_id, String givenname, String familyname, String email) {
+    public AddUserEvent(Long event_id, Long group_id, String user_id, String givenname, String familyname, String email) {
         super(event_id, group_id, user_id);
         this.givenname = givenname;
         this.familyname = familyname;
         this.email = email;
     }
 
-    public AddUserEvent(long event_id, long group_id, User user) {
+    public AddUserEvent(Long event_id, Long group_id, User user) {
         super(event_id, group_id, user.getUser_id());
         this.givenname = user.getGivenname();
         this.familyname = user.getFamilyname();

src/main/java/mops/gruppen2/domain/event/CreateGroupEvent.java

@@ -11,9 +11,14 @@ public class CreateGroupEvent extends Event {
     String groupTitle;
     String groupDescription;
 
-    public CreateGroupEvent(long event_id, long group_id, String user_id, String groupTitle, String groupDescription) {
+    public CreateGroupEvent(long event_id, Long group_id, String user_id, String groupTitle, String groupDescription) {
         super(event_id, group_id, user_id);
         this.groupTitle = groupTitle;
         this.groupDescription = groupDescription;
     }
+    public CreateGroupEvent(Long group_id, String user_id, String groupTitle, String groupDescription) {
+        super(group_id, user_id);
+        this.groupTitle = groupTitle;
+        this.groupDescription = groupDescription;
+    }
 }

src/main/java/mops/gruppen2/domain/event/DeleteUserEvent.java

@@ -6,11 +6,9 @@ import lombok.*;
  * Entfernt ein einzelnes Mitglied einer Gruppe.
  */
 @Getter
-@AllArgsConstructor
-@NoArgsConstructor
 public class DeleteUserEvent extends Event {
 
-    public DeleteUserEvent(long event_id, long group_id, String user_id) {
+    public DeleteUserEvent(Long event_id, Long group_id, String user_id) {
         super(event_id, group_id, user_id);
     }
 }

src/main/java/mops/gruppen2/domain/event/Event.java

@@ -24,7 +24,12 @@ import lombok.NoArgsConstructor;
         @JsonSubTypes.Type(value = AddUserEvent.class, name = "UpdateRoleEvent"),
 })
 public class Event {
-    long event_id;
-    long group_id;
+    Long event_id;
+    Long group_id;
     String user_id;
+
+    public Event(Long group_id,String user_id){
+        this.group_id = group_id;
+        this.user_id = user_id;
+    }
 }

src/main/java/mops/gruppen2/domain/event/UpdateGroupDescriptionEvent.java

@@ -13,7 +13,7 @@ import lombok.NoArgsConstructor;
 public class UpdateGroupDescriptionEvent extends Event {
     String newGroupDescription;
 
-    public UpdateGroupDescriptionEvent(long event_id, long group_id, String user_id, String newGroupDescription) {
+    public UpdateGroupDescriptionEvent(Long event_id, Long group_id, String user_id, String newGroupDescription) {
         super(event_id, group_id, user_id);
         this.newGroupDescription = newGroupDescription;
     }

src/main/java/mops/gruppen2/domain/event/UpdateGroupTitleEvent.java

@@ -13,7 +13,7 @@ import lombok.NoArgsConstructor;
 public class UpdateGroupTitleEvent extends Event {
     String newGroupTitle;
 
-    public UpdateGroupTitleEvent(long event_id, long group_id, String user_id, String newGroupTitle) {
+    public UpdateGroupTitleEvent(Long event_id, Long group_id, String user_id, String newGroupTitle) {
         super(event_id, group_id, user_id);
         this.newGroupTitle = newGroupTitle;
     }

src/main/java/mops/gruppen2/domain/event/UpdateRoleEvent.java

@@ -13,7 +13,7 @@ public class UpdateRoleEvent extends Event {
 
     Role newRole;
 
-    public UpdateRoleEvent(long event_id, long group_id, String user_id, Role newRole) {
+    public UpdateRoleEvent(Long event_id, Long group_id, String user_id, Role newRole) {
         super(event_id, group_id, user_id);
 
         this.newRole = newRole;

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

@@ -0,0 +1,51 @@
+package mops.gruppen2.service;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import mops.gruppen2.domain.EventDTO;
+import mops.gruppen2.domain.event.Event;
+import mops.gruppen2.repository.EventRepository;
+import org.springframework.stereotype.Service;
+
+@Service
+public class EventService {
+    private final SerializationService serializationService;
+    private final EventRepository eventStore;
+
+    public EventService(SerializationService serializationService, EventRepository eventStore) {
+        this.serializationService = serializationService;
+        this.eventStore = eventStore;
+    }
+
+
+    public void saveEvent(Event event){
+        EventDTO eventDTO = getDTO(event);
+        eventStore.save(eventDTO);
+
+    }
+
+    public EventDTO getDTO(Event event){
+        EventDTO eventDTO = new EventDTO();
+        eventDTO.setGroup_id(event.getGroup_id());
+        eventDTO.setUser_id(event.getUser_id());
+        try {
+            eventDTO.setEvent_payload(serializationService.serializeEvent(event));
+        } catch (JsonProcessingException e) {
+            e.printStackTrace();
+        }
+        return  eventDTO;
+    }
+
+    public Long checkGroup() {
+        Long tmpId = 1L;
+        Iterable<EventDTO> eventDTOS = eventStore.findAll();
+        for (EventDTO event : eventDTOS) {
+            if (event.getGroup_id() == null) {
+                return tmpId;
+            }
+            if (tmpId <= event.getGroup_id()) {
+                tmpId++;
+            }
+        }
+        return tmpId;
+    }
+}

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

@@ -4,6 +4,7 @@ import mops.gruppen2.domain.Group;
 import mops.gruppen2.domain.event.Event;
 import org.springframework.stereotype.Service;
 
+import java.util.ArrayList;
 import java.util.List;
 
 @Service
@@ -15,9 +16,17 @@ public class GroupService {
      * @param eventList Die Events für diese Gruppe
      * @return Gruppe auf aktuellem Stand
      */
-    Group buildGroupFromEvents(List<Event> eventList) {
+    public Group buildGroupFromEvents(List<Event> eventList) {
         Group newGroup = new Group();
         newGroup.apply(eventList);
         return newGroup;
     }
+
+    public Group buildGroupFromEvent(Event event){
+        Group newGroup = new Group();
+        List<Event> eventList = new ArrayList<>();
+        eventList.add(event);
+        newGroup.apply(eventList);
+        return newGroup;
+    }
 }

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

@@ -29,16 +29,5 @@ public class SerializationService {
         return json;
     }
 
-    public void saveEvent(Event event){
-        try {
-            EventDTO eventDTO = new EventDTO();
-            eventDTO.setGroup_id(event.getGroup_id());
-            eventDTO.setUser_id(event.getUser_id());
-            eventDTO.setEvent_payload(serializeEvent(event));
-            eventStore.save(eventDTO);
-        } catch (JsonProcessingException e) {
-            e.printStackTrace();
-        }
 
-    }
 }

src/main/resources/templates/create.html

@@ -27,20 +27,20 @@
 <main th:fragment="bodycontent">
     <h1>Gruppenerstellung</h1>
     <div class="container-fluid">
-        <form method="post" action="/">
+        <form method="post" action="/gruppen2/createGroup">
             <div style="border: 10px solid aliceblue; background: aliceblue">
                 <div class="form-group">
                     <label for="titel">Name der Gruppe</label>
-                    <input type="text" class="form-control" id="titel" th:value="${titel}">
+                    <input type="text" class="form-control" id="titel" th:name="title">
                 </div>
                 <div class="form-group">
                     <label for="beschreibung">Beschreibung der Gruppe</label>
-                    <textarea type="text" class="form-control" id="beschreibung" th:value="${beschreibung}">
+                    <textarea type="text" class="form-control" id="beschreibung" th:name="beschreibung">
 
                     </textarea>
                 </div>
                 <div class="form-group">
-
+                    <input type="submit">
                 </div>
             </div>
         </form>

src/test/java/mops/gruppen2/domain/GroupTest.java

@@ -23,25 +23,25 @@ class GroupTest {
 
     @Test
     void createSingleGroup() {
-        CreateGroupEvent createGroupEvent = new CreateGroupEvent(1,2, "asd", "hello", "foo");
+        CreateGroupEvent createGroupEvent = new CreateGroupEvent(1,2L, "asd", "hello", "foo");
 
         Group group = new Group();
         group.apply(createGroupEvent);
 
         assertThat(group.getDescription()).isEqualTo("foo");
         assertThat(group.getTitle()).isEqualTo("hello");
-        assertThat(group.getId()).isEqualTo(2);
+        assertThat(group.getId()).isEqualTo(2L);
     }
 
     // Verwendet CreateGroupEvent
     @Test
     void addSingleUser() {
-        CreateGroupEvent createGroupEvent = new CreateGroupEvent(1,1,"prof1", "hi", "foo");
+        CreateGroupEvent createGroupEvent = new CreateGroupEvent(1L,1L,"prof1", "hi", "foo");
         Group group = new Group();
         group.apply(createGroupEvent);
 
         User user = new User("prof", "jens", "bendi", "hi@gmail.com");
-        AddUserEvent addUserEvent = new AddUserEvent(1,1, user);
+        AddUserEvent addUserEvent = new AddUserEvent(1L,1L, user);
         group.apply(addUserEvent);
 
         assertThat(group.getMembers().get(0)).isEqualTo(user);

src/test/java/mops/gruppen2/service/EventServiceTest.java

@@ -0,0 +1,7 @@
+package mops.gruppen2.service;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class EventServiceTest {
+
+}

src/test/java/mops/gruppen2/service/SerializationServiceTest.java

@@ -28,7 +28,7 @@ class SerializationServiceTest {
 
 	@Test
 	void serializeEventTest() {
-		event =  new Event(1,1,"1");
+		event =  new Event(1L,1L,"1");
 		SerializationService serializationService = new SerializationService(eventRepository);
 		try {
 			assertThat(serializationService.serializeEvent(event)).isEqualTo("{\"Event\":{\"event_id\":1,\"group_id\":1,\"user_id\":\"1\"}}");