throw new FessSystemException("Cannot load facet from cache.", e);
        }
    }

    /**
     * Creates highlighted text from highlight field fragments.
     *
     * @param highlightField the highlight field containing fragments
     * @return the combined highlighted text
     */
    public String createHighlightText(final HighlightField highlightField) {

                            .noMatchSize(noMatchSize)
                            .order(order)
                            .phraseLimit(phraseLimit)).encoder(encoder)));
            searchRequestBuilder.highlighter(highlightBuilder);
        }

        /**
         * Builds the sort configuration.
         *
         * @param queryContext the query context

# Tag to use before highlighted text.
query.highlight.tag.pre=<strong>
# Tag to use after highlighted text.
query.highlight.tag.post=</strong>
# Boundary characters for query highlighting.
query.highlight.boundary.chars=u0009u000Au0013u0020
# Maximum scan for query highlight boundaries.
query.highlight.boundary.max.scan=20
# Scanner type for query highlight boundaries.
query.highlight.boundary.scanner=chars

    }

    /**
     * Gets the fields that can be highlighted in search results.
     *
     * @return array of field names that can be highlighted
     */
    public String[] getHighlightedFields() {
        return highlightedFields;
    }

    /**
     * Sets the fields that can be highlighted in search results.
     *

    /** The key of the configuration. e.g. <strong> */
    String QUERY_HIGHLIGHT_TAG_PRE = "query.highlight.tag.pre";

    /** The key of the configuration. e.g. </strong> */
    String QUERY_HIGHLIGHT_TAG_POST = "query.highlight.tag.post";

    /** The key of the configuration. e.g. u0009u000Au0013u0020 */
    String QUERY_HIGHLIGHT_BOUNDARY_CHARS = "query.highlight.boundary.chars";

    /** Request attribute key for storing queries. */
    public static final String REQUEST_QUERIES = "fess.Queries";

    /** Request attribute key for storing highlight queries. */
    public static final String HIGHLIGHT_QUERIES = "fess.HighlightQueries";

    /** Request attribute key for storing field logs. */
    public static final String FIELD_LOGS = "fess.FieldLogs";