public static final String AS_EPQ = "epq";

    public static final String AS_Q = "q";

    public static final String AS_FILETYPE = "filetype";

    public static final String AS_SITESEARCH = "sitesearch";

    public static final String AS_OCCURRENCE = "occt";

    public static final String AS_TIMESTAMP = "timestamp";

    public abstract String getQuery();

				</div>
			</div>
			<div class="form-group row">
				<label for="as_sitesearch" class="col-lg-3 col-md-4 col-sm-5 col-12 col-form-label"><la:message
						key="labels.advance_search_sitesearch"
					/></label>
				<div class="col-lg-5 col-md-8 col-sm-7 col-xs-6">
					<input class="form-control" type="text" id="as_sitesearch" name="as.sitesearch" value="${f:h(fe:join(as.sitesearch))}">
				</div>

				</div>
			</div>
			<div class="form-group row">
				<label for="as_sitesearch" class="col-lg-3 col-md-4 col-sm-5 col-12 col-form-label"><la:message
						key="labels.advance_search_sitesearch"
					/></label>
				<div class="col-lg-5 col-md-8 col-sm-7 col-xs-6">
					<input class="form-control" type="text" id="as_sitesearch" name="as.sitesearch" value="${f:h(fe:join(as.sitesearch))}">
				</div>

                        .forEach(q -> queryBuf.append(" filetype:\"").append(q.trim()).append('"')));
        stream(conditions.get(SearchRequestParams.AS_SITESEARCH))
                .of(stream -> stream.filter(q -> StringUtil.isNotBlank(q) && q.length() <= maxQueryLength)
                        .forEach(q -> queryBuf.append(" site:").append(q.trim())));