trabajando en usuarios

src/main/java/com/imprimelibros/erp/users/UserServiceImpl.java

@@ -0,0 +1,44 @@
+package com.imprimelibros.erp.users;
+
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.authority.SimpleGrantedAuthority;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+import org.springframework.stereotype.Service;
+import java.util.Collection;
+import java.util.stream.Collectors;
+
+@Service
+public class UserServiceImpl implements UserService {
+
+    private UserDao userDao;
+    private RoleDao roleDao;
+
+    public UserServiceImpl(UserDao userDao, RoleDao roleDao) {
+        this.userDao = userDao;
+        this.roleDao = roleDao;
+    }
+
+    @Override
+    public User findByUserName(String userName) {
+        // check the database if the user already exists
+        return userDao.findByUserNameAndEnabledTrue(userName);
+    }
+
+    @Override
+    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
+        User user = userDao.findByUserNameAndEnabledTrue(username);
+        if (user == null) {
+            throw new UsernameNotFoundException("No existe usuario: " + username);
+        }
+        return new UserDetailsImpl(user);
+    }
+
+    /*public List<User> getUsersList() {
+        return userDao.findAll();
+    }*/
+
+    private Collection<? extends GrantedAuthority> mapRolesToAuthorities(Collection<Role> roles) {
+        return roles.stream().map(role -> new SimpleGrantedAuthority(role.getName())).collect(Collectors.toList());
+    }
+}