content: /*
   *
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   *
   */
  package org.apache.bookkeeper.client.api;
  
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.TimeUnit;
  import org.apache.bookkeeper.conf.ClientConfiguration;
  import org.apache.bookkeeper.test.BookKeeperClusterTestCase;
  import org.awaitility.Awaitility;
  import org.junit.Test;
  
  /**
   * Bookkeeper Client API driver metadata service available test.
   */
  public class DriverMetadataServiceAvailableTest extends BookKeeperClusterTestCase {
  
      public DriverMetadataServiceAvailableTest() {
          super(3);
      }
  
      @Test
      public void testDriverMetadataServiceAvailable()
              throws Exception {
          ClientConfiguration conf = new ClientConfiguration();
          conf.setMetadataServiceUri(zkUtil.getMetadataServiceUri());
          conf.setZkTimeout(3000);
          try (BookKeeper bkc = BookKeeper.newBuilder(conf).build()) {
              Awaitility.await().until(() -> bkc.isDriverMetadataServiceAvailable().get());
              zkUtil.sleepCluster(5, TimeUnit.SECONDS, new CountDownLatch(1));
              Awaitility.await().until(() -> !bkc.isDriverMetadataServiceAvailable().get());
              Awaitility.await().until(() -> bkc.isDriverMetadataServiceAvailable().get());
          }
      }
  }
  