private final String fq;

    /**
     * Constructor for QueryLog.
     * @param queryString The query string.
     * @param filterQueryString The filter query string (can be null).
     */
    public QueryLog(final String queryString, @Nullable final String filterQueryString) {
        q = queryString;
        fq = filterQueryString;
    }

    /**
     * Returns the query string.

    protected Map<String, String[]> getParameterMapFromQueryString(final HttpServletRequest request, final String enc) throws IOException {
        final String queryString = request.getQueryString();
        if (StringUtil.isNotBlank(queryString)) {
            return parseQueryString(queryString, enc);
        }
        return Collections.emptyMap();
    }

    /**
     * Parses a query string and extracts parameter name-value pairs.

        private String queryString;
        private String servletPath;
        private String method = "GET";
        private String requestURI = "/";
        private final Map<String, String> headers = new java.util.HashMap<>();

        public void setQueryString(String queryString) {
            this.queryString = queryString;
        }

        final String queryString = queryLog.getQueryString();
        final String filterQueryString = queryLog.getFilterQueryString();

        final String[] tags = extractTags(tagFieldNames, tagFieldName -> {
            final List<String> results = new ArrayList<>(Arrays.asList(SuggestUtil.parseQuery(queryString, tagFieldName)));
            if (filterQueryString != null) {

     * Deletes suggest items by a query string.
     *
     * @param index The index name
     * @param queryString The query string
     * @return The SuggestDeleteResponse
     */
    public SuggestDeleteResponse deleteByQuery(final String index, final String queryString) {
        return deleteByQuery(index, QueryBuilders.queryStringQuery(queryString).defaultOperator(Operator.AND));
    }

    /**
     * Deletes suggest items by a query builder.

        final String urlField = fessConfig.getIndexFieldUrl();
        final String queryString = "*" + text + "*";
        context.addFieldLog(urlField, queryString);
        context.addHighlightedQuery(text);
        return QueryBuilders.wildcardQuery(urlField, queryString).boost(boost);
    }

    /**
     * Converts a term query ending with asterisk to a prefix query.
     *

        purgeDocJob.execute();

        // Verify the query can be converted to string (for logging)
        assertNotNull(deleteQuery);
        String queryString = deleteQuery.toString();
        assertNotNull(queryString);
        assertTrue(queryString.contains("expires"));
    }

    @Test
    public void test_execute_withIOException() {

        assertNotNull(queryBuilder2);

        // The term should remain uppercase
        String queryString2 = queryBuilder2.toString();
        assertTrue(queryString2.contains("TEST*") || queryString2.contains("TEST"));
    }

    }

    /**
     * Deletes suggest items by a query string.
     * @param queryString The query string.
     * @return The SuggestDeleteResponse.
     */
    public SuggestDeleteResponse deleteByQuery(final String queryString) {
        ensureOperations();
        return deletionOps.deleteByQuery(index, queryString);
    }

    /**
     * Deletes suggest items by a query builder.

        assertNotNull(builder);
        assertTrue(builder instanceof DefaultQueryBuilder);

        // Should not include important_content field when boost is negative
        String queryString = builder.toString();
        assertFalse(queryString.contains("important_content"));
    }

    @Test
    public void test_register() {
        // Save the original processor