result.setUser(DfTypeUtil.toString(source.get("user")));
            result.setUserAgent(DfTypeUtil.toString(source.get("userAgent")));
            result.setUserInfoId(DfTypeUtil.toString(source.get("userInfoId")));
            result.setUserSessionId(DfTypeUtil.toString(source.get("userSessionId")));
            result.setVirtualHost(DfTypeUtil.toString(source.get("virtualHost")));

        this.userAgent = value;
    }

    public String getUserInfoId() {
        checkSpecifiedProperty("userInfoId");
        return convertEmptyToNull(userInfoId);
    }

    public void setUserInfoId(String value) {
        registerModifiedProperty("userInfoId");
        this.userInfoId = value;
    }

    public String getUserSessionId() {
        checkSpecifiedProperty("userSessionId");

                "userAgent");
        setupEpg(_epgMap, et -> ((SearchLog) et).getUserInfoId(), (et, vl) -> ((SearchLog) et).setUserInfoId(DfTypeUtil.toString(vl)),
                "userInfoId");
        setupEpg(_epgMap, et -> ((SearchLog) et).getUserSessionId(), (et, vl) -> ((SearchLog) et).setUserSessionId(DfTypeUtil.toString(vl)),

            // update search log
            searchLogList.stream().forEach(searchLog -> {
                searchLog.getUserInfo().ifPresent(userInfo -> {
                    searchLog.setUserInfoId(userInfo.getId());
                });
            });
        }
    }

    /**
    * Stores a list of search logs.
    *
    * @param searchLogList The search log list.
    */