AuditingConfig.java

package de.mirkosertic.powerstaff.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.domain.AuditorAware;
import org.springframework.data.jdbc.repository.config.EnableJdbcAuditing;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;

import java.util.Optional;

@Configuration
@EnableJdbcAuditing
public class AuditingConfig {

    @Bean
    public AuditorAware<String> auditorProvider() {
        return () -> {
            final Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
            if (authentication == null || !authentication.isAuthenticated()
                    || "anonymousUser".equals(authentication.getName())) {
                return Optional.of("system");
            }
            return Optional.of(authentication.getName());
        };
    }
}