/** Maximum number of documents to cache before indexing */
    protected int maxDocumentCacheSize;

    /** Factory for creating ingesters to process documents */
    private IngestFactory ingestFactory = null;

    /**
     * Initializes the callback implementation after dependency injection.
     * Sets up configuration values and initializes the ingest factory if available.
     */
    @PostConstruct

    /** List of active crawler instances */
    private List<Crawler> crawlerList;

    /** Factory for creating document ingesters */
    private IngestFactory ingestFactory = null;

    /**
     * Default constructor for IndexUpdater.
     * Initializes a new instance with default settings.
     */
    public IndexUpdater() {
        super();
    }

import org.codelibs.fess.helper.UserInfoHelper;
import org.codelibs.fess.helper.ViewHelper;
import org.codelibs.fess.helper.VirtualHostHelper;
import org.codelibs.fess.indexer.IndexUpdater;
import org.codelibs.fess.ingest.IngestFactory;
import org.codelibs.fess.job.JobExecutor;
import org.codelibs.fess.ldap.LdapManager;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.mylasta.direction.FessProp;