import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;

import jakarta.annotation.PostConstruct;
import jakarta.servlet.http.HttpServletRequest;

/**
 * Helper class for managing search logs.
 */
public class SearchLogHelper {
    private static final Logger logger = LogManager.getLogger(SearchLogHelper.class);

    /**

     * @param out the output stream to write the object data to
     * @throws StorageException if the download fails
     */
    public static void downloadObject(final String objectName, final org.lastaflute.web.servlet.request.stream.WrittenStreamOut out) {
        try (final StorageClient client = StorageClientFactory.createClient()) {
            final ByteArrayOutputStream baos = new ByteArrayOutputStream();

import org.lastaflute.core.message.supplier.UserMessagesCreator;
import org.lastaflute.web.TypicalAction;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.ruts.process.ActionRuntime;
import org.lastaflute.web.servlet.request.RequestManager;
import org.lastaflute.web.util.LaServletContextUtil;
import org.lastaflute.web.validation.ActionValidator;
import org.opensearch.monitor.os.OsProbe;

import com.google.common.cache.CacheBuilder;

import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.optional.OptionalThing;
import org.lastaflute.web.util.LaRequestUtil;

import jakarta.annotation.Resource;
import jakarta.servlet.http.HttpServletRequest;

/**
 * Client class for RAG (Retrieval-Augmented Generation) chat functionality.
 *
 * Orchestrates the multi-phase RAG workflow including session management,

import org.lastaflute.web.LastaWebKey;
import org.lastaflute.web.util.LaRequestUtil;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

import jakarta.servlet.http.HttpSession;

/**
 * Abstract base class for LLM client implementations.
 *
 * Provides shared infrastructure (HTTP client, availability checking) and