} catch (final Exception ignored) {}
    }

    protected void handleFileUploadException(final FileUploadException e) throws ServletException {
        // suppress logging because it can be caught by logging filter
        //log.error("Failed to parse multipart request", e);
        throw new ServletException("Failed to upload the file.", e);
    }

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

import org.codelibs.fess.helper.RateLimitHelper;
import org.codelibs.fess.util.ComponentUtil;

import jakarta.servlet.Filter;
import jakarta.servlet.FilterChain;
import jakarta.servlet.ServletException;
import jakarta.servlet.ServletRequest;
import jakarta.servlet.ServletResponse;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

/**

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Enumeration;
import java.util.GregorianCalendar;
import java.util.LinkedList;
import java.util.ListIterator;

import jakarta.servlet.ServletException;
import jakarta.servlet.ServletOutputStream;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

import java.util.ListIterator;
import java.util.Properties;

import org.bouncycastle.util.encoders.Base64;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jakarta.servlet.ServletException;
import jakarta.servlet.ServletOutputStream;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

     * @param chain The filter chain.
     * @throws IOException If an I/O error occurs.
     * @throws ServletException If a servlet error occurs.
     */
    protected void processSuggestRequest(final HttpServletRequest request, final HttpServletResponse response, final FilterChain chain)
            throws IOException, ServletException {
        if (!acceptHttpMethod(request, GET)) {
            return;
        }

import org.lastaflute.web.servlet.request.RequestManager;
import org.lastaflute.web.servlet.session.SessionManager;

import jakarta.annotation.PostConstruct;
import jakarta.servlet.FilterChain;
import jakarta.servlet.ServletException;
import jakarta.servlet.ServletInputStream;
import jakarta.servlet.ServletOutputStream;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

/**

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;

import jakarta.annotation.PostConstruct;
import jakarta.servlet.FilterChain;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

/**
 * API Manager for RAG chat endpoints with SSE streaming support.
 *
 * @author FessProject
 */