@Slf4j

public class TenantSupportInterceptor implements RequestInterceptor {

    public void apply(RequestTemplate template) {

        String tenantNo = Optional.ofNullable(LocalHolder.getTenantNo());

        template.header(CommonConstants.TENANT_NO, tenantNo);

    }

}

public final class LocalHolder {

    private LocalHolder() {

    }

    private static final InheritableThreadLocal<String> TENANT_NO_THREADLOCAL = new InheritableThreadLocal<>();

    public static void setTenantNo(String tenantNo) {

        TENANT_NO_THREADLOCAL.set(tenantNo);

    }

    public static String getTenantNo() {

        return TENANT_NO_THREADLOCAL.get();

    }

    public static void removeTenantNo() {

        TENANT_NO_THREADLOCAL.remove();

    }

}