return getComponent(QUERY_HELPER);
    }

    /**
     * Gets the query field configuration.
     * @return The query field config.
     */
    public static QueryFieldConfig getQueryFieldConfig() {
        return getComponent(QUERY_FIELD_CONFIG);
    }

    /**
     * Gets the query processor component.
     * @return The query processor.
     */

    private QueryFieldConfig queryFieldConfig;

    @Override
    protected void setUpChild() throws Exception {
        queryCommand = new TestQueryCommand();
        queryFieldConfig = ComponentUtil.getQueryFieldConfig();

        // Set up search fields
        String[] searchFields = { "title", "content", "url", "host", "filetype" };
        queryFieldConfig.setSearchFields(searchFields);
    }

    /**

                        final String name = entry.getKey();
                        if (StringUtil.isNotBlank(name) && entry.getValue() != null
                                && ComponentUtil.getQueryFieldConfig().isApiResponseField(name)) {
                            if (!first2) {
                                buf.append(',');
                            } else {
                                first2 = false;

                return false;
            }

            final QueryHelper queryHelper = ComponentUtil.getQueryHelper();
            final QueryFieldConfig queryFieldConfig = ComponentUtil.getQueryFieldConfig();
            final FessConfig fessConfig = ComponentUtil.getFessConfig();

            if (offset > fessConfig.getQueryMaxSearchResultOffsetAsInteger()) {