fixed checkstyle problems

config/checkstyle/checkstyle.xml

@@ -57,11 +57,6 @@
             <property name="message"
                       value="Consider using special escape sequence instead of octal value or Unicode escaped value."/>
         </module>
-        <module name="AvoidEscapedUnicodeCharacters">
-            <property name="allowEscapesForControlCharacters" value="true"/>
-            <property name="allowByTailComment" value="true"/>
-            <property name="allowNonPrintableEscapes" value="true"/>
-        </module>
         <module name="AvoidStarImport"/>
         <module name="OneTopLevelClass"/>
         <module name="NoLineWrap">
@@ -173,7 +168,7 @@
                      value="Type name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="MemberName">
-            <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9]*$"/>
+            <property name="format" value="^[a-z][a-zA-Z0-9].*$"/>
             <message key="name.invalidPattern"
                      value="Member name ''{0}'' must match pattern ''{1}''."/>
         </module>
@@ -193,7 +188,7 @@
                      value="Catch parameter name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="LocalVariableName">
-            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
+            <property name="format" value="^[a-z]([a-zA-Z0-9]*)?$"/>
             <message key="name.invalidPattern"
                      value="Local variable name ''{0}'' must match pattern ''{1}''."/>
         </module>

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

@@ -6,13 +6,22 @@ import mops.gruppen2.domain.User;
 import mops.gruppen2.domain.exception.EventException;
 import mops.gruppen2.domain.exception.PageNotFoundException;
 import mops.gruppen2.security.Account;
-import mops.gruppen2.service.*;
+import mops.gruppen2.service.ControllerService;
+import mops.gruppen2.service.GroupService;
+import mops.gruppen2.service.KeyCloakService;
+import mops.gruppen2.service.UserService;
+import mops.gruppen2.service.ValidationService;
 import org.keycloak.adapters.springsecurity.token.KeycloakAuthenticationToken;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
-import org.springframework.web.bind.annotation.*;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.context.annotation.SessionScope;
 import org.springframework.web.multipart.MultipartFile;
+
 import javax.annotation.security.RolesAllowed;
 import javax.servlet.http.HttpServletRequest;
 import java.io.IOException;
@@ -208,8 +217,8 @@ public class WebController {
         model.addAttribute("user", user);
         model.addAttribute("admin", Role.ADMIN);
 
-        String URL = request.getRequestURL().toString();
+        String actualURL = request.getRequestURL().toString();
-        String serverURL = URL.substring(0, URL.indexOf("gruppen2/"));
+        String serverURL = actualURL.substring(0, actualURL.indexOf("gruppen2/"));
         model.addAttribute("link", serverURL + "gruppen2/acceptinvite/" + groupId);
 
         return "detailsMember";
@@ -236,10 +245,11 @@ public class WebController {
                                            @RequestParam("id") String groupId) throws EventException {
         model.addAttribute("account", keyCloakService.createAccountFromPrincipal(token));
         Group group = userService.getGroupById(UUID.fromString(groupId));
+        validationService.checkIfGroupFull(group);
+
         UUID parentId = group.getParent();
         Group parent = validationService.checkParent(parentId);
 
-        validationService.checkIfGroupFull(group);
         model.addAttribute("group", group);
         model.addAttribute("parentId", parentId);
         model.addAttribute("parent", parent);

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

@@ -15,8 +15,8 @@ public class UpdateUserMaxEvent extends Event {
 
     private  Long userMaximum;
 
-    public UpdateUserMaxEvent(UUID group_id, String user_id, Long userMaximum) {
+    public UpdateUserMaxEvent(UUID groupId, String userId, Long userMaximum) {
-        super(group_id, user_id);
+        super(groupId, userId);
         this.userMaximum = userMaximum;
     }
 

src/main/java/mops/gruppen2/domain/exception/BadParameterException.java

@@ -4,7 +4,7 @@ import org.springframework.http.HttpStatus;
 
 public class BadParameterException extends EventException {
 
-	public BadParameterException(String info) {
+    public BadParameterException(String info) {
-		super(HttpStatus.INTERNAL_SERVER_ERROR, "Fehlerhafter Parameter angegeben!", info);
+        super(HttpStatus.INTERNAL_SERVER_ERROR, "Fehlerhafter Parameter angegeben!", info);
-	}
+    }
 }

src/main/java/mops/gruppen2/domain/exception/GroupFullException.java

@@ -4,8 +4,8 @@ import org.springframework.http.HttpStatus;
 
 public class GroupFullException extends EventException {
 
-	public GroupFullException(String info) {
+    public GroupFullException(String info) {
-		super(HttpStatus.INTERNAL_SERVER_ERROR, "Die Gruppe hat die maximale Midgliederanzahl bereits erreicht!", info);
+        super(HttpStatus.INTERNAL_SERVER_ERROR, "Die Gruppe hat die maximale Midgliederanzahl bereits erreicht!", info);
-	}
+    }
 }
 

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

@@ -42,4 +42,4 @@ public class KeycloakConfig {
 
         return new OAuth2RestTemplate(resourceDetails);
     }
-}
+}

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;
@@ -44,7 +48,7 @@ class SecurityConfig extends KeycloakWebSecurityConfigurerAdapter {
 
     @Bean
     @Scope(scopeName = WebApplicationContext.SCOPE_REQUEST,
-           proxyMode = ScopedProxyMode.TARGET_CLASS)
+            proxyMode = ScopedProxyMode.TARGET_CLASS)
     public AccessToken getAccessToken() {
         HttpServletRequest request =
                 ((ServletRequestAttributes) RequestContextHolder
@@ -57,14 +61,14 @@ class SecurityConfig extends KeycloakWebSecurityConfigurerAdapter {
     protected void configure(HttpSecurity http) throws Exception {
         super.configure(http);
         http.authorizeRequests()
-            .antMatchers("/actuator/**")
+                .antMatchers("/actuator/**")
-            .hasRole("monitoring")
+                .hasRole("monitoring")
-            .and()
+                .and()
-            .authorizeRequests()
+                .authorizeRequests()
-            .antMatchers("/h2-console/**")
+                .antMatchers("/h2-console/**")
-            .permitAll()
+                .permitAll()
-            .anyRequest()
+                .anyRequest()
-            .permitAll();
+                .permitAll();
 
         http.csrf().disable();
         http.headers().frameOptions().disable();

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

@@ -1,6 +1,5 @@
 package mops.gruppen2.service;
 
-import com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException;
 import mops.gruppen2.domain.Group;
 import mops.gruppen2.domain.GroupType;
 import mops.gruppen2.domain.Role;
@@ -15,15 +14,11 @@ import mops.gruppen2.domain.event.UpdateGroupTitleEvent;
 import mops.gruppen2.domain.event.UpdateRoleEvent;
 import mops.gruppen2.domain.event.UpdateUserMaxEvent;
 import mops.gruppen2.domain.exception.EventException;
-import mops.gruppen2.domain.exception.BadParameterException;
 import mops.gruppen2.domain.exception.UserNotFoundException;
-import mops.gruppen2.domain.exception.WrongFileException;
 import mops.gruppen2.security.Account;
 import org.springframework.stereotype.Service;
-import org.springframework.web.multipart.MultipartFile;
+
-import java.io.CharConversionException;
 import java.io.IOException;
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 import java.util.UUID;
@@ -56,8 +51,6 @@ public class ControllerService {
      */
     public void createGroup(Account account, String title, String description, Boolean visibility, Boolean maxInfiniteUsers, Long userMaximum, UUID parent) throws EventException {
         Visibility visibility1;
-        UUID groupId = UUID.randomUUID();
-
         maxInfiniteUsers = maxInfiniteUsers != null;
 
         if (maxInfiniteUsers) {
@@ -72,6 +65,7 @@ public class ControllerService {
             visibility1 = Visibility.PRIVATE;
         }
 
+        UUID groupId = UUID.randomUUID();
         CreateGroupEvent createGroupEvent = new CreateGroupEvent(groupId, account.getName(), parent, GroupType.SIMPLE, visibility1, userMaximum);
         eventService.saveEvent(createGroupEvent);
 
@@ -188,8 +182,8 @@ public class ControllerService {
         eventService.saveEvent(deleteUserEvent);
     }
 
-    public void deleteGroupEvent(String user_id, UUID groupId) {
+    public void deleteGroupEvent(String userId, UUID groupId) {
-        DeleteGroupEvent deleteGroupEvent = new DeleteGroupEvent(groupId, user_id);
+        DeleteGroupEvent deleteGroupEvent = new DeleteGroupEvent(groupId, userId);
         eventService.saveEvent(deleteGroupEvent);
     }
 
@@ -206,8 +200,8 @@ public class ControllerService {
         return false;
     }
 
-    private boolean isLastAdmin(Account account, Group group){
+    private boolean isLastAdmin(Account account, Group group) {
-        for (Map.Entry<String, Role> entry : group.getRoles().entrySet()){
+        for (Map.Entry<String, Role> entry : group.getRoles().entrySet()) {
             if (entry.getValue() == ADMIN) {
                 if (!(entry.getKey().equals(account.getName()))) {
                     return false;

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

@@ -56,7 +56,7 @@ public class GroupService {
         Map<UUID, Group> groupMap = new HashMap<>();
 
         events.parallelStream()
-              .forEachOrdered(event -> event.apply(getOrCreateGroup(groupMap, event.getGroupId())));
+                .forEachOrdered(event -> event.apply(getOrCreateGroup(groupMap, event.getGroupId())));
 
         return new ArrayList<>(groupMap.values());
     }
@@ -89,19 +89,18 @@ public class GroupService {
         sortByGroupType(visibleGroups);
 
         return visibleGroups.stream()
-                            .filter(group -> group.getType() != null)
+                .filter(group -> group.getType() != null)
-                            .filter(group -> !eventService.userInGroup(group.getId(), userId))
+                .filter(group -> !eventService.userInGroup(group.getId(), userId))
-                            .filter(group -> group.getVisibility() == Visibility.PUBLIC)
+                .filter(group -> group.getVisibility() == Visibility.PUBLIC)
-                            .collect(Collectors.toList());
+                .collect(Collectors.toList());
     }
 
     /**
      * Wird verwendet beim Gruppe erstellen bei der Parent-Auswahl: nur Titel benötigt.
      *
-     * @return
+     * @return List of groups
-     * @throws EventException
      */
-    public List<Group> getAllLecturesWithVisibilityPublic() throws EventException {
+    public List<Group> getAllLecturesWithVisibilityPublic() {
         List<Event> createEvents = eventService.translateEventDTOs(eventRepository.findAllEventsByType("CreateGroupEvent"));
         createEvents.addAll(eventService.translateEventDTOs(eventRepository.findAllEventsByType("DeleteGroupEvent")));
         createEvents.addAll(eventService.translateEventDTOs(eventRepository.findAllEventsByType("UpdateGroupTitleEvent")));
@@ -110,9 +109,9 @@ public class GroupService {
         List<Group> visibleGroups = projectEventList(createEvents);
 
         return visibleGroups.stream()
-                            .filter(group -> group.getType() == GroupType.LECTURE)
+                .filter(group -> group.getType() == GroupType.LECTURE)
-                            .filter(group -> group.getVisibility() == Visibility.PUBLIC)
+                .filter(group -> group.getVisibility() == Visibility.PUBLIC)
-                            .collect(Collectors.toList());
+                .collect(Collectors.toList());
     }
 
 

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

@@ -1,19 +1,21 @@
 package mops.gruppen2.service;
 
-import com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException;
 import mops.gruppen2.domain.Group;
 import mops.gruppen2.domain.Role;
 import mops.gruppen2.domain.User;
 import mops.gruppen2.domain.Visibility;
-import mops.gruppen2.domain.exception.*;
+import mops.gruppen2.domain.exception.BadParameterException;
+import mops.gruppen2.domain.exception.GroupFullException;
+import mops.gruppen2.domain.exception.GroupNotFoundException;
+import mops.gruppen2.domain.exception.NoAccessException;
+import mops.gruppen2.domain.exception.NoAdminAfterActionException;
+import mops.gruppen2.domain.exception.NoValueException;
+import mops.gruppen2.domain.exception.UserAlreadyExistsException;
+import mops.gruppen2.domain.exception.WrongFileException;
 import mops.gruppen2.security.Account;
 import org.springframework.stereotype.Service;
 import org.springframework.web.multipart.MultipartFile;
 
-import javax.swing.text.StyledEditorKit;
-import javax.validation.ValidationException;
-import java.io.CharConversionException;
-import java.io.File;
 import java.io.IOException;
 import java.util.List;
 import java.util.UUID;
@@ -47,13 +49,17 @@ public class ValidationService {
     }
 
     public void checkGroup(String title) {
-        if (title == null) throw new GroupNotFoundException("@details");
+        if (title == null) {
+            throw new GroupNotFoundException("@details");
+        }
     }
 
     public boolean checkIfUserInGroup(Group group, User user) {
         if (!group.getMembers().contains(user) && group.getVisibility() == Visibility.PRIVATE) {
             throw new NoAccessException("");
-        } else return group.getMembers().contains(user);
+        } else {
+            return group.getMembers().contains(user);
+        }
     }
 
     public Group checkParent(UUID parentId) {
@@ -118,9 +124,10 @@ public class ValidationService {
 
     /**
      * Überprüft ob alle Felder richtig gesetzt sind.
-     * @param description
+     *
-     * @param title
+     * @param description Die Beschreibung der Gruppe
-     * @param userMaximum
+     * @param title Der Titel der Gruppe
+     * @param userMaximum Das user Limit der Gruppe
      */
     public void checkFields(String description, String title, Long userMaximum, Boolean maxInfiniteUsers) {
         if (description == null) {