Merge branch 'event-db' into html-gruppe

# Conflicts:
#	src/main/java/mops/gruppen2/controller/Gruppen2Controller.java
#	src/main/java/mops/gruppen2/entities/Teilnehmer.java

src/main/java/mops/gruppen2/Gruppen2Application.java

@@ -3,11 +3,16 @@ package mops.gruppen2;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.annotation.Bean;
+import springfox.documentation.builders.PathSelectors;
 import springfox.documentation.builders.RequestHandlerSelectors;
+import springfox.documentation.service.ApiInfo;
+import springfox.documentation.service.Contact;
 import springfox.documentation.spi.DocumentationType;
 import springfox.documentation.spring.web.plugins.Docket;
 import springfox.documentation.swagger2.annotations.EnableSwagger2;
 
+import java.util.Collections;
+
 @SpringBootApplication
 @EnableSwagger2
 public class Gruppen2Application {
@@ -16,8 +21,25 @@ public class Gruppen2Application {
     }
 
     @Bean
-    public Docket productAPI(){
-        return new Docket(DocumentationType.SWAGGER_2).select()
-                .apis(RequestHandlerSelectors.basePackage("mops.gruppen2")).build();
+    public Docket productAPI() {
+        return new Docket(DocumentationType.SWAGGER_2)
+                .select()
+                .paths(PathSelectors.ant("/products/**"))
+                .apis(RequestHandlerSelectors.basePackage("mops.gruppen2"))
+                .build()
+                .apiInfo(apiMetadata());
+    }
+
+    private ApiInfo apiMetadata() {
+        return new ApiInfo(
+                "Gruppenbildung API",
+                "API zum anfragen/aktualisieren der Gruppendaten.",
+                "0.0.1",
+                "Free to use",
+                new Contact("gruppen2", "https://github.com/hhu-propra2/abschlussprojekt-it-bois", ""),
+                "",
+                "",
+                Collections.emptyList()
+        );
     }
 }

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

@@ -0,0 +1,34 @@
+package mops.gruppen2.controller;
+
+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 javax.annotation.security.RolesAllowed;
+
+@Controller
+@RequestMapping("/gruppen2")
+public class Gruppen2Controller {
+
+    private final KeyCloakService keyCloakService;
+
+    public Gruppen2Controller(KeyCloakService keyCloakService) {
+        this.keyCloakService = keyCloakService;
+    }
+
+    /**Zeigt die index.html an.
+     *
+     * @param token toller token
+     * @param model tolles model
+     * @return index.html
+     */
+    @RolesAllowed({"ROLE_orga", "ROLE_studentin", "ROLE_actuator)"})
+    @GetMapping("")
+    public String index(KeycloakAuthenticationToken token, Model model) {
+        model.addAttribute("account", keyCloakService.createAccountFromPrincipal(token));
+        return "index";
+    }
+}

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

@@ -0,0 +1,72 @@
+package mops.gruppen2.controller;
+
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.github.javafaker.Faker;
+import io.swagger.annotations.ApiOperation;
+import io.swagger.annotations.ApiParam;
+import mops.gruppen2.domain.ProductSwaggerExample;
+import mops.gruppen2.domain.event.AddUserEvent;
+import mops.gruppen2.service.SerializationService;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Ein Beispiel für eine API mit Swagger.
+ */
+@RestController
+@RequestMapping("/products")
+public class SwaggerAPIControllerExample {
+
+    private final Faker faker = new Faker();
+    private final List<ProductSwaggerExample> products = new ArrayList<>();
+    private final SerializationService serializationService;
+
+    public SwaggerAPIControllerExample(SerializationService serializationService) {
+        this.serializationService = serializationService;
+    }
+
+    @GetMapping("/get/all")
+    @ApiOperation(value = "Erzeugt eine Liste mit allen gespeicherten Produkten")
+    public List<ProductSwaggerExample> getProducts() {
+        return products;
+    }
+
+    @GetMapping("/get/{index}")
+    public ProductSwaggerExample getProduct(@ApiParam("Produkt Index")  @PathVariable int index) {
+        return products.get(index);
+    }
+
+    @PostMapping("/save")
+    public String saveProduct(@RequestBody  ProductSwaggerExample product) {
+        products.add(product);
+
+        return "Product saved successfully";
+    }
+
+    @PostMapping("/random")
+    public String saveRandomProduct() {
+        products.add(new ProductSwaggerExample(faker.food().ingredient(), "Empty"));
+
+        return "Product saved successfully";
+    }
+
+    /*@GetMapping("/json")       //just for testing
+    public void json() {
+        AddUserEvent aEvent = new AddUserEvent(
+                1,
+                1,
+                "Eins",
+                faker.leagueOfLegends().location(),
+                faker.name().lastName(),
+                "123@email.de");
+        try {
+            serializationService.serializeEvent(aEvent);
+            serializationService.saveEvent(aEvent);
+        } catch (JsonProcessingException e) {
+            e.printStackTrace();
+        }
+    }*/
+}

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

@@ -1,64 +0,0 @@
-package mops.gruppen2.controllers;
-
-import javax.annotation.security.RolesAllowed;
-
-import mops.gruppen2.entities.Gruppe;
-import mops.gruppen2.security.Account;
-import org.keycloak.KeycloakPrincipal;
-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.ModelAttribute;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.context.annotation.SessionScope;
-
-@SessionScope
-@Controller
-public class Gruppen2Controller {
-    /**
-     * Creates an Account.
-     *
-     * @param token Ein toller token
-     * @return Account with current userdata
-     */
-    private 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());
-    }
-
-    /**Zeigt die index.html an.
-     *
-     * @param token toller token
-     * @param model tolles model
-     * @return index.html
-     */
-    @GetMapping("/")
-    @RolesAllowed({"ROLE_orga", "ROLE_studentin", "ROLE_actuator)"})
-    public String index(KeycloakAuthenticationToken token, Model model) {
-        model.addAttribute("account", createAccountFromPrincipal(token));
-        return "index";
-    }
-
-    @PostMapping("/")
-    public String addGruppe(@ModelAttribute Gruppe gruppe) {
-        System.out.println(gruppe);
-        return "redirect:/";
-    }
-
-    @GetMapping("/createGroup")
-    public String createGruppe(){
-        return "create";
-    }
-
-    @GetMapping("/findGroup")
-    public String findGruppe(){
-        return "search";
-    }
-}

src/main/java/mops/gruppen2/controllers/SwaggerAPIController.java

@@ -1,24 +0,0 @@
-package mops.gruppen2.controllers;
-
-
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
-import org.springframework.web.bind.annotation.RestController;
-
-import java.util.ArrayList;
-import java.util.List;
-
-@RestController
-public class SwaggerAPIController {
-	@RequestMapping(value = "/products", method = RequestMethod.GET)
-	public List<String> getProducts(){
-		List<String> productList = new ArrayList<>();
-		productList.add("Honey");
-		productList.add("Almond");
-		return productList;
-	}
-	@RequestMapping(value = "/products", method = RequestMethod.POST)
-	public String createProduct() {
-		return "Product is saved successfully";
-	}
-}

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

@@ -0,0 +1,39 @@
+package mops.gruppen2.domain;
+
+import lombok.Getter;
+import mops.gruppen2.domain.event.Event;
+
+import java.lang.reflect.Method;
+import java.util.List;
+
+/**
+ * Repräsentiert viele Events als aggregiertes Objekt.
+ */
+@Getter
+public abstract class Aggregate {
+
+    protected long id;
+
+    public void apply(List<Event> events) {
+        events.forEach(this::applyEvent);
+    }
+
+    public void apply(Event event) {
+        applyEvent(event);
+    }
+
+    /**
+     * Ruft die spezifische applyEvent-Methode im entsprechenden Aggregat auf.
+     *
+     * @param event Event, welches aggregiert wird
+     */
+    private void applyEvent(Event event) {
+        try {
+            Method method = this.getClass().getDeclaredMethod("applyEvent", event.getClass());
+            method.setAccessible(true);
+            method.invoke(this, event);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}

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

@@ -0,0 +1,16 @@
+package mops.gruppen2.domain;
+
+import lombok.Data;
+import lombok.Value;
+import org.springframework.data.annotation.Id;
+import org.springframework.data.relational.core.mapping.Table;
+
+@Table("event")
+@Data
+public class EventDTO {
+    @Id
+    long event_id;
+    long group_id;
+    String user_id;
+    String event_payload;
+}

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

@@ -0,0 +1,74 @@
+package mops.gruppen2.domain;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import mops.gruppen2.domain.event.*;
+
+import java.util.*;
+
+/**
+ * Repräsentiert den aggregierten Zustand einer Gruppe.
+ */
+@EqualsAndHashCode(callSuper = false)
+@Getter
+public class Group extends Aggregate {
+    private String title;
+    private String description;
+    private final List<User> members;
+    private final Map<User, Role> roles;
+
+    public Group() {
+        this.members = new ArrayList<>();
+        this.roles = new HashMap<>();
+    }
+
+    private void applyEvent(CreateGroupEvent event) {
+        title = event.getGroupTitle();
+        description = event.getGroupDescription();
+        id = event.getGroup_id();
+    }
+
+    private void applyEvent(UpdateRoleEvent event) {
+        User user;
+
+        Optional<User> userOptional = members.stream()
+                .filter(u -> u.getUser_id().equals(event.getUser_id()))
+                .findFirst();
+
+        if (userOptional.isPresent()) {
+            user = userOptional.get();
+        } else {
+            System.out.println("UserNotFoundException");
+            return;
+        }
+
+        if (roles.containsKey(user) && event.getNewRole() == Role.STUDENT) {
+            roles.remove(user);
+        } else {
+            roles.put(user, event.getNewRole());
+        }
+    }
+
+    private void applyEvent(AddUserEvent event) {
+        User user = new User(event.getUser_id(), event.getGivenname(), event.getFamilyname(), event.getEmail());
+
+        this.members.add(user);
+    }
+
+    private void applyEvent(UpdateGroupTitleEvent event) {
+        this.title = event.getNewGroupTitle();
+    }
+
+    private void applyEvent(UpdateGroupDescriptionEvent event) {
+        this.description = event.getNewGroupDescription();
+    }
+
+    private void applyEvent(DeleteUserEvent event) {
+        for (User user : members) {
+            if (user.getUser_id().equals(event.getUser_id())) {
+                this.members.remove(user);
+                break;
+            }
+        }
+    }
+}

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

@@ -0,0 +1,12 @@
+package mops.gruppen2.domain;
+
+import lombok.Value;
+
+// @ApiModelProperty
+@Value
+public class ProductSwaggerExample {
+
+    // @ApiModelProperty
+    String name;
+    String description;
+}

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

@@ -0,0 +1,5 @@
+package mops.gruppen2.domain;
+
+public enum Role {
+    ORGA, ADMIN, STUDENT
+}

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

@@ -0,0 +1,14 @@
+package mops.gruppen2.domain;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+@Data
+@AllArgsConstructor
+public class User {
+
+    String user_id;
+    String givenname;
+    String familyname;
+    String email;
+}

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

@@ -0,0 +1,30 @@
+package mops.gruppen2.domain.event;
+
+import lombok.EqualsAndHashCode;
+import lombok.Value;
+import mops.gruppen2.domain.User;
+
+/**
+ * Fügt einen einzelnen Nutzer einer Gruppe hinzu.
+ */
+@EqualsAndHashCode(callSuper = true)
+@Value
+public class AddUserEvent extends Event {
+    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) {
+        super(event_id, group_id, user.getUser_id());
+        this.givenname = user.getGivenname();
+        this.familyname = user.getFamilyname();
+        this.email = user.getEmail();
+    }
+}

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

@@ -0,0 +1,17 @@
+package mops.gruppen2.domain.event;
+
+import lombok.EqualsAndHashCode;
+import lombok.Value;
+
+@EqualsAndHashCode(callSuper = true)
+@Value
+public class CreateGroupEvent extends Event {
+    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;
+    }
+}

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

@@ -0,0 +1,16 @@
+package mops.gruppen2.domain.event;
+
+import lombok.EqualsAndHashCode;
+import lombok.Value;
+
+/**
+ * Entfernt ein einzelnes Mitglied einer Gruppe.
+ */
+@EqualsAndHashCode(callSuper = true)
+@Value
+public class DeleteUserEvent extends Event {
+
+    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

@@ -0,0 +1,14 @@
+package mops.gruppen2.domain.event;
+
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import lombok.Value;
+import lombok.experimental.NonFinal;
+
+@Value
+@NonFinal
+@JsonTypeInfo(include = JsonTypeInfo.As.WRAPPER_OBJECT, use = JsonTypeInfo.Id.NAME)
+public class Event {
+    long event_id;
+    long group_id;
+    String user_id;
+}

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

@@ -0,0 +1,18 @@
+package mops.gruppen2.domain.event;
+
+import lombok.EqualsAndHashCode;
+import lombok.Value;
+
+/**
+ * Ändert nur die Gruppenbeschreibung.
+ */
+@EqualsAndHashCode(callSuper = true)
+@Value
+public class UpdateGroupDescriptionEvent extends Event {
+    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

@@ -0,0 +1,18 @@
+package mops.gruppen2.domain.event;
+
+import lombok.EqualsAndHashCode;
+import lombok.Value;
+
+/**
+ * Ändert nur den Gruppentitel.
+ */
+@EqualsAndHashCode(callSuper = true)
+@Value
+public class UpdateGroupTitleEvent extends Event {
+    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

@@ -0,0 +1,21 @@
+package mops.gruppen2.domain.event;
+
+import lombok.EqualsAndHashCode;
+import lombok.Value;
+import mops.gruppen2.domain.Role;
+
+/**
+ * Aktualisiert die Gruppenrolle eines Teilnehmers.
+ */
+@EqualsAndHashCode(callSuper = true)
+@Value
+public class UpdateRoleEvent extends Event {
+
+    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/entities/Admin.java

@@ -1,4 +0,0 @@
-package mops.gruppen2.entities;
-
-public class Admin extends Rolle {
-}

src/main/java/mops/gruppen2/entities/Aggregat.java

@@ -1,18 +0,0 @@
-package mops.gruppen2.entities;
-
-import mops.gruppen2.events.Event;
-
-import java.lang.reflect.Method;
-
-public abstract class Aggregat {
-
-    public void applyEvent(Event event) {
-        try {
-            Method method = this.getClass().getDeclaredMethod("applyEvent", event.getClass());
-            method.setAccessible(true);
-            method.invoke(this, event);
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-    }
-}

src/main/java/mops/gruppen2/entities/Gruppe.java

@@ -1,21 +0,0 @@
-package mops.gruppen2.entities;
-
-import lombok.Data;
-import mops.gruppen2.events.CreateGroupEvent;
-
-import java.util.List;
-
-@Data
-public class Gruppe extends Aggregat {
-	long id;
-	String titel;
-	String beschreibung;
-	List<Teilnehmer> teilnehmersList;
-
-	public void applyEvent(CreateGroupEvent event){
-		this.id = event.getId();
-		this.titel = event.getTitel();
-		this.beschreibung = event.getBeschreibung();
-		this.teilnehmersList= null;
-	}
-}

src/main/java/mops/gruppen2/entities/Orga.java

@@ -1,4 +0,0 @@
-package mops.gruppen2.entities;
-
-public class Orga extends Rolle {
-}

src/main/java/mops/gruppen2/entities/Rolle.java

@@ -1,5 +0,0 @@
-package mops.gruppen2.entities;
-
-public class Rolle {
-
-}

src/main/java/mops/gruppen2/entities/Teilnehmer.java

@@ -1,21 +0,0 @@
-package mops.gruppen2.entities;
-
-import lombok.Data;
-import org.springframework.data.annotation.Id;
-
-import java.util.List;
-
-@Data
-public class Teilnehmer {
-	@Id
-	Long id;
-	String vorname;
-	String nachname;
-	String email;
-	List<Gruppe> Gruppen;
-
-	public Teilnehmer(String vorname, String nachname) {
-		this.vorname = vorname;
-		this.nachname = nachname;
-	}
-}

src/main/java/mops/gruppen2/events/CreateGroupEvent.java

@@ -1,15 +0,0 @@
-package mops.gruppen2.events;
-
-import lombok.Getter;
-
-@Getter
-public class CreateGroupEvent extends Event {
-	String titel;
-	String beschreibung;
-
-	public CreateGroupEvent(long id, long gruppe_id, long user_id, String titel, String beschreibung) {
-		super(id, gruppe_id, user_id);
-		this.titel = titel;
-		this.beschreibung = beschreibung;
-	}
-}

src/main/java/mops/gruppen2/events/Event.java

@@ -1,12 +0,0 @@
-package mops.gruppen2.events;
-
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class Event {
-	long id;
-	long gruppe_id;
-	long user_id;
-}

src/main/java/mops/gruppen2/repositories/EventRepository.java

@@ -1,7 +0,0 @@
-package mops.gruppen2.repositories;
-
-import mops.gruppen2.events.Event;
-import org.springframework.data.repository.CrudRepository;
-
-public interface EventRepository extends CrudRepository<Event, Long> {
-}

src/main/java/mops/gruppen2/repository/EventRepository.java

@@ -0,0 +1,8 @@
+package mops.gruppen2.repository;
+
+import mops.gruppen2.domain.EventDTO;
+import mops.gruppen2.domain.event.Event;
+import org.springframework.data.repository.CrudRepository;
+
+public interface EventRepository extends CrudRepository<EventDTO, Long> {
+}

src/main/java/mops/gruppen2/security/SecurityConfig.java

@@ -6,7 +6,11 @@ import org.keycloak.adapters.springsecurity.authentication.KeycloakAuthenticatio
 import org.keycloak.adapters.springsecurity.config.KeycloakWebSecurityConfigurerAdapter;
 import org.keycloak.representations.AccessToken;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.context.annotation.*;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Scope;
+import org.springframework.context.annotation.ScopedProxyMode;
 import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
 import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
 import org.springframework.security.config.annotation.method.configuration.GlobalMethodSecurityConfiguration;
@@ -70,8 +74,6 @@ class SecurityConfig extends KeycloakWebSecurityConfigurerAdapter {
         http.headers().frameOptions().disable();
     }
 
-
-
     /**
      * Declaring this class enables us to use the Spring specific
      * {@link org.springframework.security.access.annotation.Secured} annotation

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

@@ -0,0 +1,23 @@
+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 {
+
+    /**
+     * Konstruiert eine vollständige Gruppe aus Events, welche dieselbe Gruppe betreffen.
+     *
+     * @param eventList Die Events für diese Gruppe
+     * @return Gruppe auf aktuellem Stand
+     */
+    Group buildGroupFromEvents(List<Event> eventList) {
+        Group newGroup = new Group();
+        newGroup.apply(eventList);
+        return newGroup;
+    }
+}

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

@@ -1,4 +1,4 @@
-package mops.gruppen2.services;
+package mops.gruppen2.service;
 
 import mops.gruppen2.security.Account;
 import org.keycloak.KeycloakPrincipal;

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

@@ -0,0 +1,44 @@
+package mops.gruppen2.service;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import mops.gruppen2.domain.EventDTO;
+import mops.gruppen2.domain.event.Event;
+import mops.gruppen2.repository.EventRepository;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+
+/**
+ * Übersetzt JSON-Event-Payloads zu Java-Event-Repräsentationen und zurück.
+ */
+@Service
+public class SerializationService {
+
+    private final EventRepository eventStore;
+    private final Logger log = LoggerFactory.getLogger(SerializationService.class);
+
+    public SerializationService(EventRepository eventStore) {
+        this.eventStore = eventStore;
+    }
+
+    public String serializeEvent(Event event) throws JsonProcessingException {
+        ObjectMapper mapper = new ObjectMapper();
+        String json =  mapper.writeValueAsString(event);
+        log.info(json);
+        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/java/mops/gruppen2/services/GruppenService.java

@@ -1,28 +0,0 @@
-package mops.gruppen2.services;
-
-import mops.gruppen2.events.CreateGroupEvent;
-import mops.gruppen2.events.Event;
-import mops.gruppen2.entities.Gruppe;
-import org.springframework.stereotype.Service;
-
-import java.util.ArrayList;
-import java.util.List;
-
-@Service
-public class GruppenService {
-
-	CreateGroupEvent createGroupEvent = new CreateGroupEvent(1L,1L,1L,"hello", "foo");
-
-	public GruppenService(){
-		List<Event> eventList = new ArrayList<>();
-		eventList.add(createGroupEvent);
-		Gruppe newGroup = buildGroup(eventList);
-		System.out.println(newGroup.toString());
-	}
-
-	Gruppe buildGroup(List<Event> eventList){
-		Gruppe newGroup = new Gruppe();
-		eventList.forEach(newGroup::applyEvent);
-		return newGroup;
-	}
-}

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

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

src/main/resources/application-dev.properties

@@ -14,4 +14,3 @@ keycloak.auth-server-url=https://keycloak.cs.hhu.de/auth
 keycloak.realm=MOPS
 keycloak.resource=demo
 keycloak.public-client=true
-

src/main/resources/data.sql

@@ -1,4 +0,0 @@
--- noinspection SqlNoDataSourceInspectionForFile
-
-insert into TEILNEHMER (VORNAME, NACHNAME, EMAIL) values
-    ('Peter', 'Müller', 'Peter@123.de');

src/main/resources/schema.sql

@@ -1,25 +1,11 @@
 -- noinspection SqlNoDataSourceInspectionForFile
 
-DROP TABLE IF EXISTS teilnehmer;
-CREATE TABLE teilnehmer (
-    teilnehmer_id INT PRIMARY KEY AUTO_INCREMENT,
-    vorname VARCHAR(50) NOT NULL,
-    nachname VARCHAR(50) NOT NULL ,
-    email VARCHAR(255) NOT NULL
-);
+DROP TABLE IF EXISTS event;
 
-DROP TABLE IF EXISTS gruppe;
-CREATE TABLE gruppe
+CREATE TABLE event
 (
-    gruppe_id INTEGER PRIMARY KEY auto_increment,
-    titel TEXT NOT NULL,
-    beschreibung TEXT NOT NULL
-);
-
-DROP TABLE IF EXISTS teilnahme;
-CREATE TABLE teilnahme
-(
-    id INTEGER PRIMARY KEY auto_increment,
-    teilnehmer_dto INTEGER REFERENCES teilnehmer(teilnehmer_id),
-    gruppe_dto INTEGER REFERENCES gruppe(gruppe_id)
+    event_id INT PRIMARY KEY AUTO_INCREMENT,
+    group_id INT NOT NULL,
+    user_id VARCHAR(50),
+    event_payload VARCHAR(255)
 );