| Solr Feature | Fess Equivalent |
|--------------|----------------|
| Solr Core | Fess doesn't use cores; all documents in one index |
| Schema Fields | Define in crawl configuration or use default fields |
| RequestHandlers | Use Fess JSON API with parameters |
| Facet Fields | Configure in Fess search settings |
| Highlighting | Built-in in Fess search results |

---

### Other Search Systems

    }

    /**
     * Test field count to ensure no unexpected fields are added
     */
    @Test
    public void test_fieldCount() throws Exception {
        Field[] fields = FessLabels.class.getDeclaredFields();
        int labelConstantCount = 0;
        int serialVersionUIDCount = 0;

        for (Field field : fields) {
            if (field.getName().equals("serialVersionUID")) {

			<filtered>false</filtered>
		</fileSet>
		<!-- es/modules -->
		<fileSet>
			<directory>${project.basedir}/modules</directory>
			<outputDirectory>fess-${project.version}/es/modules</outputDirectory>
		</fileSet>
		<!-- es/plugins -->
		<fileSet>
			<directory>${project.basedir}/plugins</directory>
			<outputDirectory>fess-${project.version}/es/plugins</outputDirectory>
		</fileSet>
		<!-- es/data -->
		<fileSet>

			<patternset>
				<include name="fess-kopf-${kopf.version}/_site/**" />
			</patternset>
			<cutdirsmapper dirs="2" />
		</unzip>
		<delete>
			<fileset dir="${webinf.dir}/plugin">
				<include name="**/*.jar" />
			</fileset>
		</delete>
	</target>

	<target name="install.env.jar">
		<get dest="${target.dir}">

                    ComponentUtil.getFessConfig().getSystemProperty("rag.llm.name", "ollama"));

            final Map<String, String[]> fields = parseFieldFilters(request);
            final String[] extraQueries = parseExtraQueries(request);
            final ChatResult result;
            if (fields.isEmpty() && extraQueries.length == 0) {
                result = ComponentUtil.getChatClient().chat(sessionId, message, userId);

        fields.put(key, value);
    }

    public String getLogMessage() {
        return getUrl();
    }

    public LocalDateTime getRequestedAt() {
        return getCreatedAt();
    }

    @Override
    public Map<String, Object> toSource() {
        final Map<String, Object> sourceMap = super.toSource();
        if (fields != null) {
            sourceMap.putAll(fields);

            final Map<String, String[]> fields = new HashMap<>();
            for (final Map.Entry<String, String[]> entry : request.getParameterMap().entrySet()) {
                final String key = entry.getKey();
                if (key.startsWith("fields.")) {
                    final String[] value = simplifyArray(entry.getValue());
                    fields.put(key.substring("fields.".length()), value);
                }

                return fields;
            }

            @Override
            public String[] getQueryAdditionalSearchFields(String... fields) {
                return fields;
            }

            @Override
            public String[] getQueryAdditionalFacetFields(String... fields) {
                return fields;
            }

            @Override

    }

    // Test field assignment
    @Test
    public void test_fieldAssignment() {
        String[] fields = new String[] { "field1", "field2", "field3" };
        facetInfo.field = fields;
        assertNotNull(facetInfo.field);
        assertEquals(3, facetInfo.field.length);
        assertSame(fields, facetInfo.field);
    }

    // Test size assignment
    @Test
    public void test_sizeAssignment() {

     */
    public String sort;

    /**
     * The language setting for error page display.
     */
    public String lang;

    /**
     * Additional search fields for error page display.
     */
    public Map<String, String[]> fields = new HashMap<>();

    /**
     * Default constructor for ThumbnailForm.
     */
    public ThumbnailForm() {
        // Default constructor
    }