try {
                            buf.append(URLEncoder.encode(p.getFirst(), encoding));
                            buf.append('=');
                            buf.append(URLEncoder.encode(p.getSecond(), encoding));
                        } catch (final UnsupportedEncodingException e) {
                            throw new IORuntimeException(e);
                        }
                    });
                }

     */
    public void setFirst(final T1 first) {
        this.first = first;
    }

    /**
     * Returns the second value.
     *
     * @return The second value
     */
    public T2 getSecond() {
        return second;
    }

    /**
     * Sets the second value.
     *
     * @param second
     *            The second value
     */
    public void setSecond(final T2 second) {

                            || stream(user.getGroups()).get(stream -> stream.anyMatch(s -> (GROUP_VALUE_PREFIX + s).equals(key))))
                    .orElse(false)) {
                return p.getSecond();
            }
            return null;
        }).filter(StringUtil::isNotBlank).toArray(n -> new String[n]);
    }

    default void setDefaultSortValue(final String value) {

        assertEquals("field2", queryFieldConfig.additionalDefaultList.get(1).getFirst());
        assertEquals(1.5f, queryFieldConfig.additionalDefaultList.get(1).getSecond());
        assertEquals("field3", queryFieldConfig.additionalDefaultList.get(2).getFirst());
        assertEquals(1.0f, queryFieldConfig.additionalDefaultList.get(2).getSecond());

                    .filter(e -> !"name".equals(e.getKey()))
                    .map(e -> new Pair<>(e.getKey(), (String) e.getValue()))
                    .collect(Collectors.toMap(Pair::getFirst, Pair::getSecond)));
            return result;
        } catch (InstantiationException | IllegalAccessException e) {
            final String msg = "Cannot create a new instance: " + entityType.getName();

                    appendJson("search-field", searchFieldMap, buf).append(',');
                    final Map<String, List<String>> requestHeaderMap = entity.getRequestHeaderList()
                            .stream()
                            .collect(Collectors.groupingBy(Pair::getFirst, Collectors.mapping(Pair::getSecond, Collectors.toList())));

    }

    @Override
    protected void writeHeaders(final HttpServletResponse response) {
        ComponentUtil.getFessConfig().getApiDashboardResponseHeaderList().forEach(e -> response.setHeader(e.getFirst(), e.getSecond()));
    }

            }
            return new Pair<>(key, value);
        }).collect(Collectors.toMap(Pair<String, String>::getFirst, Pair<String, String>::getSecond));
        final Map<String, String> configScriptMap = config.getHandlerScriptMap();

        initParamMap.putAll(configParamMap);
        final DataStoreParams paramMap = initParamMap;

        // default values

            }
        })));
        getQueryFieldConfig().additionalDefaultList.stream().forEach(f -> {
            final QueryBuilder query = builder.apply(f.getFirst(), f.getSecond());
            defaultQuery.add(query);
        });
        return defaultQuery;
    }

    /**
     * Creates a default query builder based on the configured query type.

        final List<Pair<String, String>> jspItems = new ArrayList<>();
        for (final Pair<String, String> p : systemHelper.getDesignJspFileNames()) {
            jspItems.add(new Pair<>(":" + p.getFirst(), "/" + p.getSecond()));
        }
        for (String key : ComponentUtil.getVirtualHostHelper().getVirtualHostPaths()) {
            if (StringUtil.isBlank(key)) {
                key = "/";
            }