ZooKeeper Java API 세 션 연결 생 성

1156 단어 ZooKeeper
package lab.anoper.zk.main;

import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;
import org.apache.zookeeper.ZooKeeper;
import java.io.IOException;
import java.util.concurrent.CountDownLatch;

/**
 *      ZooKeeper     
 */
public class Sample implements Watcher{
    //      
    private static CountDownLatch connectedSemaphore = new CountDownLatch(1);

    public static void main(String[] args) throws IOException {
        String hostPort = "192.168.32.132:2181";
        ZooKeeper zk = new ZooKeeper(hostPort, 5000, new Sample());
        System.out.println("Keeper state: " + zk.getState());
        try {
            //   0,       
            connectedSemaphore.await();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("ZooKeeper session established.");
    }

    public void process(WatchedEvent event) {
        System.out.println("Receive watched event: " + event);
        if (Event.KeeperState.SyncConnected == event.getState()) {
            connectedSemaphore.countDown();
        }
     }
}

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