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.camel.component.zookeeper.operations;
  
  import org.apache.zookeeper.WatchedEvent;
  import org.apache.zookeeper.Watcher.Event.EventType;
  import org.apache.zookeeper.data.Stat;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class FutureEventDrivenOperationTest {
      private String data = "Event Received";
      private Stat statistics = new Stat();
  
      @Test
      public void shouldWaitForEvents() throws Exception {
          final FutureEventDrivenOperation<String> future
                  = new FutureEventDrivenOperation<String>(null, "somepath", EventType.NodeCreated) {
  
                      @Override
                      protected void installWatch() {
                      }
  
                      @Override
                      public OperationResult<String> getResult() {
                          return new OperationResult<>(data, statistics);
                      }
                  };
  
          WatchedEvent event = new WatchedEvent(EventType.NodeCreated, null, "somepath");
          fireEventIn(future, event, 100);
          assertEquals(data, future.get().getResult());
          assertEquals(statistics, future.get().getStatistics());
          assertEquals(event, future.getWatchedEvent());
      }
  
      private void fireEventIn(
              final FutureEventDrivenOperation<String> future, final WatchedEvent event, final int millisecondsTillFire) {
          new Thread(new Runnable() {
  
              public void run() {
                  try {
                      Thread.sleep(millisecondsTillFire);
                      future.process(event);
                  } catch (InterruptedException e) {
                  }
              }
          }).start();
      }
  }
  