}

    @Test
    public void test_offer_and_drainAll() {
        LogNotificationHelper helper = new LogNotificationHelper();
        helper.offer(new LogNotificationEvent(1000L, "ERROR", "com.example.Foo", "message1", "throwable1"));
        helper.offer(new LogNotificationEvent(2000L, "WARN", "com.example.Bar", "message2", null));

        List<LogNotificationEvent> events = helper.drainAll();

            maxBufferSize = 1000;
        }
        queue.offer(event);
        if (size.incrementAndGet() > maxBufferSize) {
            if (queue.poll() != null) {
                size.decrementAndGet();
            }
        }
    }

    /**
     * Drains all events from the buffer and returns them as a list.
     *
     * @return a list of all buffered events
     */
    public List<LogNotificationEvent> drainAll() {

import org.codelibs.fess.util.ComponentUtil;
import org.opensearch.action.bulk.BulkRequestBuilder;
import org.opensearch.action.bulk.BulkResponse;

/**
 * A timer target that periodically flushes buffered log notification events
 * to an OpenSearch index for downstream processing.
 */
public class LogNotificationTarget implements TimeoutTarget {

    /**
     * Default constructor.
     */

        // Add events to buffer
        ComponentUtil.getLogNotificationHelper()
                .offer(new LogNotificationEvent(System.currentTimeMillis(), "ERROR", "org.test", "msg1", null));
        ComponentUtil.getLogNotificationHelper()
                .offer(new LogNotificationEvent(System.currentTimeMillis(), "WARN", "org.test", "msg2", null));

     */
    @Size(max = 1000)
    public String defaultLabelValue;

    /**
     * Default sort order for search results.
     * Defines how search results are ordered when no specific sort is requested.
     */
    @Size(max = 1000)
    public String defaultSortValue;

    /**
     * Virtual host configuration for multi-tenant setups.

                event.getLevel().name(), //
                loggerName, //
                event.getMessage().getFormattedMessage(), //
                throwableStr //
        );
        helper.offer(notificationEvent);
    }

    private Level getEffectiveMinLevel() {
        try {
            final String levelStr = ComponentUtil.getSystemProperties().getProperty("fess.log.notification.level");

     *
     * @param msg the error message to add; ignored if null or blank
     */
    public static void addError(final String msg) {
        if (StringUtil.isNotBlank(msg)) {
            errors.offer(msg);
        }
    }

    /**
     * Command-line options container for the crawler application.
     * This class uses args4j annotations to define command-line arguments