"address": {
                "socket_address": {
                  "address": "0.0.0.0",
                  "port_value": 15008
                }
              },
              "filter_chains": [
                {
                  "filters": [
                    {
                      "name": "envoy.filters.network.http_connection_manager",
                      "typed_config": {

              "address": {
                "socket_address": {
                  "address": "0.0.0.0",
                  "port_value": 15008
                }
              },
              "filter_chains": [
                {
                  "filters": [
                    {
                      "name": "envoy.filters.network.http_connection_manager",
                      "typed_config": {

            "address": {
              "socket_address": {
                "address": "0.0.0.0",
                "port_value": 15021
              }
            },
            "filter_chains": [
              {
                "filters": [
                  {
                    "name": "envoy.filters.network.http_connection_manager",
                    "typed_config": {

	}
)

func retrieveListenerMatches(l *listener.Listener) []filterchain {
	fChains := getFilterChains(l)
	resp := make([]filterchain, 0, len(fChains))
	for _, filterChain := range fChains {
		fc := filterchain{
			destination: getFilterType(filterChain.GetFilters()),
			match:       getMatches(filterChain.FilterChainMatch),
		}
		resp = append(resp, fc)
	}
	return resp
}

    }

    protected void createFilterChain() {
        FilterChain chain = createDefaultFilterChain();
        for (final Filter element : filterList) {
            chain = appendFilterChain(element, chain);
        }
        filterChain = chain;
    }

    protected FilterChain appendFilterChain(final Filter filter, final FilterChain chain) {
        return query -> filter.parse(query, chain);
    }

		err = l.ActiveState.Listener.UnmarshalTo(listenerTyped)
		if err != nil {
			return nil, err
		}
		if listenerTyped.Name == model.VirtualInboundListenerName {
			for _, filterChain := range listenerTyped.FilterChains {
				for _, filter := range filterChain.Filters {
					hcm := &hcm.HttpConnectionManager{}
					if err := filter.GetTypedConfig().UnmarshalTo(hcm); err == nil {
						return hcm, nil
					}
				}
			}
		}

    }

    protected void createFilterChain() {
        FilterChain chain = createDefaultFilterChain();
        for (final Filter element : filterList) {
            chain = appendFilterChain(element, chain);
        }
        filterChain = chain;
    }

    protected FilterChain appendFilterChain(final Filter filter, final FilterChain chain) {

import org.apache.lucene.search.MatchAllDocsQuery;
import org.apache.lucene.search.Query;
import org.codelibs.fess.entity.QueryContext;
import org.codelibs.fess.query.QueryProcessor.FilterChain;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.opensearch.index.query.BoolQueryBuilder;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;

import org.codelibs.fess.cors.CorsHandler;
import org.codelibs.fess.cors.CorsHandlerFactory;
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.io.IOException;

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

public interface WebApiManager {

    boolean matches(HttpServletRequest request);

    void process(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws IOException, ServletException;