}

    /**
     * Set the health check interval
     * @param millis the health check interval in milliseconds
     */
    public void setHealthCheckInterval(int millis) {
        if (millis <= 0) {
            throw new IllegalArgumentException("Health check interval must be positive");
        }
        this.healthCheckInterval = millis;
        log.info("Set health check interval to {} ms", millis);
    }

import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.SearchEngineUtil;
import org.lastaflute.di.exception.IORuntimeException;
import org.opensearch.action.admin.cluster.health.ClusterHealthResponse;
import org.opensearch.cluster.health.ClusterHealthStatus;
import org.opensearch.common.xcontent.XContentType;

/**
 * Response entity for ping operations.
 */
public class PingResponse {

    }

    private void performHealthCheck() {
        log.debug("Performing multi-channel health check");

        for (ChannelGroup channelGroup : sessionChannels.values()) {
            for (ChannelInfo channel : channelGroup.getChannels()) {
                try {
                    // Simplified health check - in real implementation would ping the channel
                    boolean isHealthy = checkChannelHealth(channel);

    //
    private static final Logger logger = LogManager.getLogger(AdminMaintenanceAction.class);

    private static final String[] CAT_NAMES =
            { "aliases", "allocation", "count", "fielddata", "health", "indices", "master", "nodeattrs", "nodes", "pending_tasks",
                    "plugins", "recovery", "repositories", "thread_pool", "shards", "segments", "snapshots", "templates" };

import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.mail.send.hook.SMailCallbackContext;
import org.lastaflute.core.mail.Postbox;
import org.opensearch.action.admin.cluster.health.ClusterHealthResponse;
import org.opensearch.cluster.health.ClusterHealthStatus;

public class PingSearchEngineJobTest extends UnitFessTestCase {

    private PingSearchEngineJob pingSearchEngineJob;

    @Override

import org.codelibs.fess.opensearch.client.SearchEngineClient;
import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;
import org.opensearch.action.admin.cluster.health.ClusterHealthResponse;
import org.opensearch.monitor.jvm.JvmStats;
import org.opensearch.monitor.jvm.JvmStats.BufferPool;
import org.opensearch.monitor.jvm.JvmStats.Classes;

        assertEquals("adaptive", config.getLoadBalancingStrategy(), "Default strategy should be adaptive");
        assertEquals(10, config.getChannelHealthCheckInterval(), "Default health check interval should be 10");
    }

    @Test
    void testMultiChannelEnabledProperty() throws CIFSException {
        Properties props = new Properties();

     *
     * @return load balancing strategy
     */
    String getLoadBalancingStrategy();

    /**
     * Channel health check interval in seconds
     *
     * Property {@code jcifs.smb.client.channelHealthCheckInterval} (int, default 10)
     *
     * @return health check interval in seconds
     */
    int getChannelHealthCheckInterval();

    /**

  } catch (_: IOException) {
    false
  }

/**
 * Returns true if new reads and writes should be attempted on this.
 *
 * Unfortunately Java's networking APIs don't offer a good health check, so we go on our own by
 * attempting to read with a short timeout. If the fails immediately we know the socket is
 * unhealthy.
 *
 * @param source the source used to read bytes from the socket.
 */

     *
     * @return collection of all channels
     */
    public Collection<ChannelInfo> getChannels() {
        return channels.values();
    }

    /**
     * Get healthy channels only
     *
     * @return collection of healthy channels
     */
    public Collection<ChannelInfo> getHealthyChannels() {
        return channels.values()
                .stream()
                .filter(ChannelInfo::isHealthy)