return convertEmptyToNull(url);
    }

    public void setUrl(String value) {
        registerModifiedProperty("url");
        this.url = value;
    }

    public String getUserSessionId() {
        checkSpecifiedProperty("userSessionId");
        return convertEmptyToNull(userSessionId);
    }

    public void setUserSessionId(String value) {
        registerModifiedProperty("userSessionId");

                return;
            }

            final String sessionId;
            if (searchLog.getUserSessionId() != null) {
                sessionId = searchLog.getUserSessionId();
            } else if (Constants.SEARCH_LOG_ACCESS_TYPE_WEB.equals(searchLog.getAccessType())) {
                sessionId = searchLog.getClientIp();
            } else {

    }

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

    public String getUserSessionId() {
        checkSpecifiedProperty("userSessionId");
        return convertEmptyToNull(userSessionId);
    }

    public void setUserSessionId(String value) {
        registerModifiedProperty("userSessionId");

                    appendJson("query-id", entity.getQueryId(), buf).append(',');
                    appendJson("user-info-id", entity.getUserInfoId(), buf).append(',');
                    appendJson("user-session-id", entity.getUserSessionId(), buf).append(',');
                    appendJson("user", entity.getUser(), buf).append(',');
                    appendJson("search-word", entity.getSearchWord(), buf).append(',');

        setupEpg(_epgMap, et -> ((ClickLog) et).getUrl(), (et, vl) -> ((ClickLog) et).setUrl(DfTypeUtil.toString(vl)), "url");
        setupEpg(_epgMap, et -> ((ClickLog) et).getUserSessionId(), (et, vl) -> ((ClickLog) et).setUserSessionId(DfTypeUtil.toString(vl)),
                "userSessionId");
    }

    @Override
    public PropertyGateway findPropertyGateway(final String prop) {

                params.put("ID", e.getId());
                params.put("Query ID", e.getQueryId());
                params.put("Doc ID", e.getDocId());
                params.put("User Session ID", e.getUserSessionId());
                params.put("URL", e.getUrl());
                params.put("URL ID", e.getUrlId());
                params.put("Order", toNumberString(e.getOrder()));

        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)),
                "userSessionId");