*/
    RelevanceEvaluationResult evaluateResults(String userMessage, String query, List<Map<String, Object>> searchResults);

    /**
     * Generates an answer using document content (synchronous version for non-enhanced flow).
     *
     * @param userMessage the user's message
     * @param documents the documents with content
     * @param history the conversation history
     * @return the chat response
     */

## Repository Structure

```
src/main/java/org/codelibs/core/
├── beans/       # Bean manipulation & introspection (converter/, factory/, impl/, util/)
├── collection/  # Enhanced collections (LruHashMap, CaseInsensitiveMap)
├── concurrent/  # Concurrency utilities
├── convert/     # Type conversion (*ConversionUtil)
├── crypto/      # Cipher & encryption (CachedCipher)

            logger.warn("[RAG] LLM error during enhanced chat. sessionId={}, errorCode={}, error={}, elapsedTime={}ms",
                    session.getSessionId(), e.getErrorCode(), e.getMessage(), System.currentTimeMillis() - startTime, e);
            callback.onError("llm", e.getErrorCode());
            throw e;
        } catch (final Exception e) {

        }
    }

    /**
     * Processes a streaming chat request using Server-Sent Events (SSE).
     * Uses the enhanced multi-phase RAG flow with intent detection and result evaluation.
     *
     * @param request the HTTP request
     * @param response the HTTP response
     * @throws IOException if an I/O error occurs
     */

/**
 * Fess RAG Chat JavaScript
 * Enhanced with Atlassian Design System patterns
 */
var FessChat = (function() {
    'use strict';

    var config = {
        apiUrl: '/api/v1/chat',
        streamUrl: '/api/v1/chat/stream',
        labels: {
            thinking: 'Thinking...',
            waiting: '...',
            error: 'An error occurred. Please try again.',
            sources: 'Sources',
            statusReady: 'AI Assistant',

# Chat generation settings.
rag.chat.context.max.documents=5

# Session settings.
rag.chat.session.timeout.minutes=30
rag.chat.session.max.size=10000
rag.chat.history.max.messages=30

# Enhanced RAG flow settings.
# Fields to retrieve for full document content.
rag.chat.content.fields=title,url,content,doc_id,content_title,content_description
rag.chat.message.max.length=4000
# Highlight settings for RAG search.

- Enhanced discovery responses to merge API groups and resources from all peer apiservers when the `UnknownVersionInteroperabilityProxy` feature is enabled. ([#133648](https://github.com/kubernetes/kubernetes/pull/133648), [@richabanker](https://github.com/richabanker))...

- The scheduler implemented `QueueingHint` in VolumeBinding plugin's CSIDriver event, which enhanced the throughput of scheduling. ([#125171](https://github.com/kubernetes/kubernetes/pull/125171), [@YamasouA](https://github.com/YamasouA)) [SIG Scheduling and Storage]

    /**
     * Get the value for the key 'rag.chat.content.fields'. <br>
     * The value is, e.g. title,url,content,doc_id,content_title,content_description <br>
     * comment: <br>
     * Enhanced RAG flow settings.<br>
     * Fields to retrieve for full document content.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */

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