try {
            return Integer.parseInt(fessConfig.getOrDefault("rag.chat.message.max.length", "4000"));
        } catch (final NumberFormatException e) {
            logger.warn("Invalid rag.chat.message.max.length config, using default 4000");
            return 4000;
        }
    }

    /**
     * Parses and validates field filter parameters from the request.

    public void test_abbreviateLongText() {
        assertEquals("", systemHelper.abbreviateLongText(""));
        assertEquals(4000, systemHelper.abbreviateLongText(Stream.generate(() -> "a").limit(4000).collect(Collectors.joining())).length());
        assertEquals(4000, systemHelper.abbreviateLongText(Stream.generate(() -> "a").limit(4001).collect(Collectors.joining())).length());
    }

    @Test
    public void test_getLanguageItems() {

# Maximum number of docboost records to fetch per page.
page.docboost.max.fetch.size=1000
# Maximum number of keymatch records to fetch per page.
page.keymatch.max.fetch.size=1000
# Maximum number of labeltype records to fetch per page.
page.labeltype.max.fetch.size=1000
# Maximum number of roletype records to fetch per page.
page.roletype.max.fetch.size=1000
# Maximum number of user records to fetch per page.

            defaultMap.put(FessConfig.PAGE_DOCBOOST_MAX_FETCH_SIZE, "1000");
            defaultMap.put(FessConfig.PAGE_KEYMATCH_MAX_FETCH_SIZE, "1000");
            defaultMap.put(FessConfig.PAGE_LABELTYPE_MAX_FETCH_SIZE, "1000");
            defaultMap.put(FessConfig.PAGE_ROLETYPE_MAX_FETCH_SIZE, "1000");
            defaultMap.put(FessConfig.PAGE_USER_MAX_FETCH_SIZE, "1000");

                + "\"targetInstanceId\":\"*\",\"createdTime\":5000}},"
                + "{\"_source\":{\"type\":\"event\",\"name\":\"e2\",\"instanceId\":\"node3\","
                + "\"targetInstanceId\":\"*\",\"createdTime\":7000}},"
                + "{\"_source\":{\"type\":\"event\",\"name\":\"e3\",\"instanceId\":\"node4\","
                + "\"targetInstanceId\":\"*\",\"createdTime\":6000}}" + "]}}";

    @Size(max = 1000)
    public String ldapSecurityAuthentication;

    /** LDAP initial context factory class name. */
    @Size(max = 1000)
    public String ldapInitialContextFactory;

    /** OpenID Connect client ID. */
    @Size(max = 1000)
    public String oicClientId;

    /** OpenID Connect client secret. */
    @Size(max = 1000)
    public String oicClientSecret;

        public Integer getLoggingSearchMaxQueueSizeAsInteger() {
            return 1000;
        }

        @Override
        public Integer getLoggingClickMaxQueueSizeAsInteger() {
            return 1000;
        }

        @Override
        public Integer getQueryMaxLengthAsInteger() {
            return 1000;
        }

        @Override

        // Default buffer size is 1000; offer more than that
        for (int i = 0; i < 1100; i++) {
            helper.offer(new LogNotificationEvent(i, "ERROR", "org.test", "msg" + i, null));
        }
        List<LogNotificationEvent> events = helper.drainAll();
        // Should be capped at buffer size (1000)
        assertTrue(events.size() <= 1000);
        assertTrue(events.size() > 0);
    }

                super.printByLtsv(valueMap);
            }

            @Override
            protected void printByEcs(final Map<String, String> valueMap) {
                valueMap.put("time", "2022-01-01T00:00:00.000Z");
                valueMap.remove("ip");
                super.printByEcs(valueMap);
            }

            @Override
            protected void printLog(final String message) {

        events.add(new LogNotificationEvent(base, "ERROR", "org.test.A", "first", null));
        events.add(new LogNotificationEvent(base + 1000, "WARN", "org.test.B", "second", null));
        events.add(new LogNotificationEvent(base + 2000, "ERROR", "org.test.C", "third", null));

        String details = testableJob.testFormatDetails(events);

        int posFirst = details.indexOf("first");