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.activemq.artemis.tests.smoke.lockmanager;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.util.List;
  import java.util.concurrent.TimeUnit;
  
  import org.apache.activemq.artemis.tests.extensions.ThreadLeakCheckExtension;
  import org.apache.activemq.artemis.tests.extensions.parameterized.ParameterizedTestExtension;
  import org.apache.curator.test.InstanceSpec;
  import org.apache.curator.test.TestingCluster;
  import org.apache.curator.test.TestingZooKeeperServer;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.extension.ExtendWith;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.io.File;
  import java.io.IOException;
  import java.lang.invoke.MethodHandles;
  
  //Parameters set in super class
  @ExtendWith(ParameterizedTestExtension.class)
  public class ZookeeperLockManagerSinglePairTest extends LockManagerSinglePairTest {
  
     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
     private static final int BASE_SERVER_PORT = 6666;
     // Beware: the server tick must be small enough that to let the session to be correctly expired
     private static final int SERVER_TICK_MS = 100;
  
     private TestingCluster testingServer;
     private InstanceSpec[] clusterSpecs;
     private int nodes;
  
     @BeforeEach
     @Override
     public void setup() throws Exception {
        super.setup();
        nodes = 3;
        clusterSpecs = new InstanceSpec[nodes];
        for (int i = 0; i < nodes; i++) {
           clusterSpecs[i] = new InstanceSpec(newFolder(temporaryFolder, "node" + i), BASE_SERVER_PORT + i, -1, -1, true, -1, SERVER_TICK_MS, -1);
        }
        testingServer = new TestingCluster(clusterSpecs);
        testingServer.start();
        assertEquals("127.0.0.1:6666,127.0.0.1:6667,127.0.0.1:6668", testingServer.getConnectString());
        logger.info("Cluster of {} nodes on: {}", 3, testingServer.getConnectString());
     }
  
     @Override
     @AfterEach
     public void after() throws Exception {
        // zk bits that leak from servers
        ThreadLeakCheckExtension.addKownThread("ListenerHandler-");
        try {
           super.after();
        } finally {
           testingServer.close();
        }
     }
  
     public ZookeeperLockManagerSinglePairTest() {
        super("zk");
     }
  
     @Override
     protected boolean awaitAsyncSetupCompleted(long timeout, TimeUnit unit) {
        return true;
     }
  
     @Override
     protected int[] stopMajority() throws Exception {
        List<TestingZooKeeperServer> followers = testingServer.getServers();
        final int quorum = (nodes / 2) + 1;
        final int[] stopped = new int[quorum];
        for (int i = 0; i < quorum; i++) {
           followers.get(i).stop();
           stopped[i] = i;
        }
        return stopped;
     }
  
     @Override
     protected void restart(int[] nodes) throws Exception {
        List<TestingZooKeeperServer> servers = testingServer.getServers();
        for (int nodeIndex : nodes) {
           servers.get(nodeIndex).restart();
        }
     }
  
     private static File newFolder(File root, String... subDirs) throws IOException {
        String subFolder = String.join("/", subDirs);
        File result = new File(root, subFolder);
        if (!result.mkdirs()) {
           throw new IOException("Couldn't create folders " + root);
        }
        return result;
     }
  }
  