if (session != null) {
                return session.getId();
            }
            final String preference = r.getParameter("preference");
            if (preference != null) {
                return Integer.toString(preference.hashCode());
            }
            final Object accessType = r.getAttribute(Constants.SEARCH_LOG_ACCESS_TYPE);

    public SearchRequestParams request() {
        return _searchRequestParams;
    }

    public void setPreference(final String preference) {
        _preference = preference;
    }

    public String getPreference() {
        return _preference;
    }

    // ===================================================================================

    public SearchRequestParams request() {
        return _searchRequestParams;
    }

    public void setPreference(final String preference) {
        _preference = preference;
    }

    public String getPreference() {
        return _preference;
    }

    // ===================================================================================

    public SearchRequestParams request() {
        return _searchRequestParams;
    }

    public void setPreference(final String preference) {
        _preference = preference;
    }

    public String getPreference() {
        return _preference;
    }

    // ===================================================================================

    public static Path getEnvPath(final String envName, final String... names) {
        return getPath("WEB-INF/", "env/" + envName, names);
    }

    /**
     * Gets the path by trying multiple locations in order of preference.
     * First tries to get the real path from servlet context, then checks various
     * fallback locations including source and target directories.
     *
     * @param root the root directory (e.g., "WEB-INF/")

        - name: lang
          in: query
          description: Language
          required: false
          schema:
            type: string
            example: en
        - name: preference
          in: query
          description: String to specify a shard for searching
          required: false
          schema:
            type: string
            example: abc
        - name: callback

  - [Apache Solr](#apache-solr)
  - [Other Search Systems](#other-search-systems)
- [Data Import Methods](#data-import-methods)
- [Configuration Migration](#configuration-migration)
- [API Reference](#api-reference)
- [Troubleshooting](#troubleshooting)
- [Migration Checklist](#migration-checklist)

---

## Supported Migration Sources

Fess provides built-in support and compatibility layers for:

    public static final String REQUEST_LANGUAGES = "requestLanguages";

    /** Request page size parameter name. */
    public static final String REQUEST_PAGE_SIZE = "requestPageSize";

    /** Search preference for local node. */
    public static final String SEARCH_PREFERENCE_LOCAL = "_local";

    /** GSA API version identifier. */
    public static final String GSA_API_VERSION = "3.2";

        msg.addSource(new ChatSource(2, doc2));

        final String result = chatClient.testBuildAssistantHistoryContent(msg, "source_titles", 500, 500);
        assertEquals("Response text\n[Referenced documents: Installation Guide, Quick Start]", result);
    }

    @Test
    public void test_buildAssistantHistoryContent_sourceTitles_withoutSources() {

n=t['function']||t.fn;t.enabled&&e(n)&&(o.offsets.popper=g(o.offsets.popper),o.offsets.reference=g(o.offsets.reference),o=n(o,t))}),o}function k(){if(!this.state.isDestroyed){var e={instance:this,styles:{},arrowStyles:{},attributes:{},flipped:!1,offsets:{}};e.offsets.reference=L(this.state,this.popper,this.reference,this.options.positionFixed),e.placement=O(this.options.placement,e.offsets.reference,this.popper,this.reference,this.options.modifiers.flip.boundariesElement,this.options.modifiers.flip.padd...