user.setRoles(roleList.toArray(new String[roleList.size()]));
                    }
                });

    }

    public void insert(final User user) {
        if (!fessConfig.isLdapAdminEnabled(user.getName())) {
            return;
        }

        final Supplier<Hashtable<String, String>> adminEnv = this::createAdminEnv;

            return list;
        });
    }

    public boolean update(final String index, final String id, final String field, final Object value) {
        // Using ingest pipelines with doc_as_upsert is not supported.
        if (usePipeline) {
            return updateByIdWithScript(index, id, field, value);
        }
        try {