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.distributedlog;
  
  import java.io.File;
  import lombok.extern.slf4j.Slf4j;
  import org.apache.bookkeeper.shims.zk.ZooKeeperServerShim;
  import org.apache.bookkeeper.util.IOUtils;
  import org.apache.commons.io.FileUtils;
  import org.apache.commons.lang3.tuple.Pair;
  import org.junit.AfterClass;
  import org.junit.BeforeClass;
  
  
  /**
   * ZooKeeperClusterTestCase.
   */
  @Slf4j
  public class ZooKeeperClusterTestCase {
  
      static {
          // org.apache.zookeeper.test.ClientBase uses FourLetterWordMain, from 3.5.3 four letter words
          // are disabled by default due to security reasons
          System.setProperty("zookeeper.4lw.commands.whitelist", "*");
      }
  
      protected static File zkDir;
      protected static ZooKeeperServerShim zks;
      protected static String zkServers;
      protected static int zkPort;
  
      @BeforeClass
      public static void setupZooKeeper() throws Exception {
          zkDir = IOUtils.createTempDir("zookeeper", ZooKeeperClusterTestCase.class.getName());
          Pair<ZooKeeperServerShim, Integer> serverAndPort = LocalDLMEmulator.runZookeeperOnAnyPort(zkDir);
          zks = serverAndPort.getLeft();
          zkPort = serverAndPort.getRight();
          zkServers = "127.0.0.1:" + zkPort;
  
          log.info("--- Setup zookeeper at {} ---", zkServers);
      }
  
      @AfterClass
      public static void shutdownZooKeeper() throws Exception {
          log.info("--- Shutdown zookeeper at {} ---", zkServers);
          zks.stop();
          if (null != zkDir) {
              FileUtils.forceDeleteOnExit(zkDir);
          }
      }
  }
  