op.setRefreshPolicy(Constants.TRUE);
        });
    }

    /**
     * Starts a monitor task for tracking job execution.
     *
     * @param jobLog the job log to monitor
     * @return the timeout task for monitoring
     */
    public TimeoutTask startMonitorTask(final JobLog jobLog) {

import org.lastaflute.di.core.external.GenericExternalContextComponentDefRegister;
import org.lastaflute.di.core.factory.SingletonLaContainerFactory;
import org.opensearch.monitor.jvm.JvmInfo;
import org.opensearch.monitor.os.OsProbe;
import org.opensearch.monitor.process.ProcessProbe;

import jakarta.annotation.Resource;

/**
 * This class is a command-line application for creating and managing the suggest index.

            currentProcess = null;

        }
    }

    /**
     * Monitor thread that handles process timeout and termination.
     * This thread sleeps for the specified timeout duration and terminates the process if it hasn't finished.
     */
    protected static class MonitorThread extends Thread {
        /** The process to monitor. */
        private final Process process;

import org.lastaflute.di.core.external.GenericExternalContextComponentDefRegister;
import org.lastaflute.di.core.factory.SingletonLaContainerFactory;
import org.opensearch.monitor.jvm.JvmInfo;
import org.opensearch.monitor.os.OsProbe;
import org.opensearch.monitor.process.ProcessProbe;

import jakarta.annotation.Resource;

/**
 * Executable class for generating thumbnails for indexed documents.

     * Handles graceful and forceful termination of thumbnail generation processes.
     */
    protected static class ProcessDestroyer extends TimerTask {

        /** The process to monitor and destroy. */
        private final Process p;

        /** The input stream thread reading process output. */
        private final InputStreamThread ist;

        final String value = params.get(key);
        if (value == null) {
            return key;
        }
        return value;
    }

    /**
     * Thread to monitor and terminate processes that exceed the timeout.
     */
    protected static class MonitorThread extends Thread {
        private final Process process;

        private final long timeout;

import org.lastaflute.di.core.external.GenericExternalContextComponentDefRegister;
import org.lastaflute.di.core.factory.SingletonLaContainerFactory;
import org.opensearch.monitor.jvm.JvmInfo;
import org.opensearch.monitor.os.OsProbe;
import org.opensearch.monitor.process.ProcessProbe;

import jakarta.annotation.Resource;

/**
 * Main executable class for running crawling operations in the Fess search engine.

crawler.ignore.content.exception=true
# HTTP status codes considered as failure URLs.
crawler.failure.url.status.codes=404
# Interval (seconds) for system monitor during crawling.
crawler.system.monitor.interval=60
# Whether to ignore idle threads in hot thread monitoring.
crawler.hotthread.ignore_idle_threads=true
# Interval for hot thread monitoring (e.g., 500ms).
crawler.hotthread.interval=500ms

     * Get the value for the key 'crawler.system.monitor.interval'. <br>
     * The value is, e.g. 60 <br>
     * comment: Interval (seconds) for system monitor during crawling.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getCrawlerSystemMonitorInterval();

    /**
     * Get the value for the key 'crawler.system.monitor.interval' as {@link Integer}. <br>

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 com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.ibm.icu.util.ULocale;