private static final String FILTER_TYPE = "filterType";

    /**
     * Filter type for include filters.
     */
    private static final String INCLUDE = "include";

    /**
     * Filter type for exclude filters.
     */
    private static final String EXCLUDE = "exclude";

    /**
     * Cache for include filters.
     */
    protected LoadingCache<String, List<Pattern>> includeFilterCache;

    /**

 */
package org.codelibs.fess.crawler.service;

import java.util.List;
import java.util.regex.Pattern;

/**
 * Service interface for managing URL filters.
 * Provides methods to add and remove include/exclude URL filters,
 * as well as retrieve the patterns of these filters.
 */
public interface UrlFilterService {

    /**
     * Adds a URL to the include filter list for the specified session.
     *

import java.io.IOException;

import org.opensearch.core.xcontent.ToXContent;
import org.opensearch.core.xcontent.XContentBuilder;

/**
 * OpenSearchUrlFilter is an entity for URL filters in OpenSearch.
 */
public class OpenSearchUrlFilter implements ToXContent {

    /**
     * Creates a new instance of OpenSearchUrlFilter.
     */
    public OpenSearchUrlFilter() {
        // NOP
    }