методы для работы с ролями в бд

src/main/java/ru/ldeloff/hedgehogcloud/repository/RoleRepository.java

@@ -1,7 +1,10 @@
 package ru.ldeloff.hedgehogcloud.repository;
 
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
 import ru.ldeloff.hedgehogcloud.entity.RoleEntity;
 
+@Repository
 public interface RoleRepository extends JpaRepository<RoleEntity, String> {
+    RoleEntity findByName(String name);
 }

src/main/java/ru/ldeloff/hedgehogcloud/service/RoleService.java

@@ -0,0 +1,8 @@
+package ru.ldeloff.hedgehogcloud.service;
+
+import ru.ldeloff.hedgehogcloud.entity.RoleEntity;
+
+public interface RoleService {
+    void saveRole(RoleEntity roleEntity);
+    RoleEntity getByName(String name);
+}

src/main/java/ru/ldeloff/hedgehogcloud/service/RoleServiceImpl.java

@@ -0,0 +1,31 @@
+package ru.ldeloff.hedgehogcloud.service;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+import org.springframework.stereotype.Service;
+import ru.ldeloff.hedgehogcloud.entity.RoleEntity;
+import ru.ldeloff.hedgehogcloud.entity.UserEntity;
+import ru.ldeloff.hedgehogcloud.repository.RoleRepository;
+
+@Service
+public class RoleServiceImpl implements RoleService {
+    RoleRepository roleRepository;
+
+    public RoleServiceImpl(RoleRepository roleRepository) {
+        this.roleRepository = roleRepository;
+    }
+
+
+    public void saveRole(RoleEntity role) {
+        RoleEntity roleTemp = getByName(role.getName());
+        if (roleTemp == null) {
+            roleRepository.save(role);
+        }
+    }
+
+    @Override
+    public RoleEntity getByName(String name) {
+        return roleRepository.findByName(name);
+    }
+
+}