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.integration;
  
  import java.util.concurrent.TimeUnit;
  
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.component.mock.MockEndpoint;
  import org.apache.camel.component.zookeeper.ZooKeeperMessage;
  import org.apache.zookeeper.KeeperException.NodeExistsException;
  import org.apache.zookeeper.Watcher.Event.EventType;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  public class ConsumeDataIT extends ZooKeeperITSupport {
  
      @Override
      protected RouteBuilder[] createRouteBuilders() {
          return new RouteBuilder[] { new RouteBuilder() {
              public void configure() {
                  from("zookeeper://{{zookeeper.connection.string}}/camel?repeat=true")
                          .to("mock:zookeeper-data");
              }
          } };
      }
  
      @Test
      public void shouldAwaitCreationAndGetDataNotification() throws Exception {
          EventType[] expectedEventTypes = new EventType[] {
                  EventType.NodeCreated,
                  EventType.NodeDataChanged,
                  EventType.NodeDataChanged,
                  EventType.NodeDataChanged,
                  EventType.NodeDataChanged,
                  EventType.NodeDataChanged,
                  EventType.NodeDataChanged,
                  EventType.NodeDataChanged,
                  EventType.NodeDataChanged,
                  EventType.NodeDataChanged,
                  EventType.NodeDeleted
          };
  
          MockEndpoint mock = getMockEndpoint("mock:zookeeper-data");
          mock.expectedMessageCount(expectedEventTypes.length);
  
          createCamelNode();
  
          updateNode(10);
  
          delay(500);
          client.delete("/camel");
  
          MockEndpoint.assertIsSatisfied(30, TimeUnit.SECONDS);
  
          int lastVersion = -1;
          for (int i = 0; i < mock.getExchanges().size(); i++) {
              assertEquals(expectedEventTypes[i],
                      mock.getExchanges().get(i).getIn().getHeader(ZooKeeperMessage.ZOOKEEPER_EVENT_TYPE));
              if (!EventType.NodeDeleted.equals(expectedEventTypes[i])) {
                  // As a delete event does not carry statistics, ignore it in the version check.
                  int version = ZooKeeperMessage.getStatistics(mock.getExchanges().get(i).getIn()).getVersion();
                  assertTrue(lastVersion < version, "Version did not increase");
                  lastVersion = version;
              }
          }
      }
  
      @Test
      public void deletionOfAwaitedNodeCausesNoFailure() throws Exception {
          MockEndpoint mock = getMockEndpoint("mock:zookeeper-data");
          mock.expectedMinimumMessageCount(11);
          createCamelNode();
  
          delay(500);
  
          // by now we are back waiting for a change so delete the node
          client.delete("/camel");
  
          // recreate and update a number of times.
          createCamelNode();
          updateNode(10);
  
          MockEndpoint.assertIsSatisfied(30, TimeUnit.SECONDS);
  
          client.delete("/camel");
      }
  
      private void updateNode(int times) throws Exception {
          for (int x = 1; x < times; x++) {
              delay(500);
              client.setData("/camel", testPayload + "_" + x, -1);
          }
      }
  
      private void createCamelNode() throws Exception {
          try {
              delay(1000);
              client.create("/camel", testPayload + "_0");
          } catch (NodeExistsException e) {
          }
      }
  }
  