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.carbondata.lcm.locks;
  
  import org.apache.carbondata.core.constants.CarbonCommonConstants;
  import org.apache.carbondata.core.metadata.AbsoluteTableIdentifier;
  import org.apache.carbondata.core.util.CarbonProperties;
  import org.apache.carbondata.core.locks.LockUsage;
  import org.apache.carbondata.core.locks.ZooKeeperLocking;
  import org.apache.carbondata.core.locks.ZookeeperInit;
  import org.apache.zookeeper.server.ServerConfig;
  import org.apache.zookeeper.server.ZooKeeperServerMain;
  import org.apache.zookeeper.server.quorum.QuorumPeerConfig;
  import org.junit.After;
  import org.junit.Assert;
  import org.junit.Before;
  import org.junit.Ignore;
  
  import java.io.File;
  import java.io.IOException;
  import java.net.ServerSocket;
  import java.util.Properties;
  import java.util.UUID;
  
  /**
   * ZooKeeperLocking Test cases
   */
  public class ZooKeeperLockingTest {
  
    int freePort;
  
    /**
     * @throws java.lang.Exception
     */
    @Before public void setUp() throws Exception {
      Properties startupProperties = new Properties();
      startupProperties.setProperty("dataDir", (new File("./target").getAbsolutePath()));
      startupProperties.setProperty("dataLogDir", (new File("./target").getAbsolutePath()));
      freePort = findFreePort();
      startupProperties.setProperty("clientPort", "" + freePort);
      QuorumPeerConfig quorumConfiguration = new QuorumPeerConfig();
      try {
        quorumConfiguration.parseProperties(startupProperties);
      } catch (Exception e) {
        throw new RuntimeException(e);
      }
  
      final ZooKeeperServerMain zooKeeperServer = new ZooKeeperServerMain();
      final ServerConfig configuration = new ServerConfig();
      configuration.readFrom(quorumConfiguration);
      new Thread() {
        public void run() {
          try {
            zooKeeperServer.runFromConfig(configuration);
          } catch (IOException e) {
            System.out.println("ZooKeeper failure");
          }
        }
      }.start();
    }
  
    /**
     * @throws java.lang.Exception
     */
    @After public void tearDown() throws Exception {
    }
  
    @Ignore public void testZooKeeperLockingByTryingToAcquire2Locks()
        throws IllegalArgumentException, IllegalAccessException, NoSuchFieldException,
        SecurityException {
  
  //    final CarbonProperties cp = CarbonProperties.getInstance();
  //    new NonStrictExpectations(cp) {
  //      {
  //        cp.getProperty("/CarbonLocks");
  //        result = "/carbontests";
  //        cp.getProperty("spark.deploy.zookeeper.url");
  //        result = "127.0.0.1:" + freePort;
  //      }
  //    };
  
      ZookeeperInit zki = ZookeeperInit.getInstance("127.0.0.1:" + freePort);
  
      AbsoluteTableIdentifier tableIdentifier = AbsoluteTableIdentifier
          .from(CarbonProperties.getStorePath(),
              "dbName", "tableName", UUID.randomUUID().toString());
      ZooKeeperLocking zkl =
          new ZooKeeperLocking(tableIdentifier,
              LockUsage.METADATA_LOCK);
      Assert.assertTrue(zkl.lock());
  
      ZooKeeperLocking zk2 = new ZooKeeperLocking(
      		tableIdentifier, LockUsage.METADATA_LOCK);
      Assert.assertTrue(!zk2.lock());
  
      Assert.assertTrue(zkl.unlock());
      Assert.assertTrue(zk2.lock());
      Assert.assertTrue(zk2.unlock());
    }
  
    /**
     * For finding the free port available.
     *
     * @return
     */
    private static int findFreePort() {
      ServerSocket socket = null;
      try {
        socket = new ServerSocket(0);
        socket.setReuseAddress(true);
        int port = socket.getLocalPort();
        try {
          socket.close();
        } catch (IOException e) {
          // Ignore IOException on close()
        }
        return port;
      } catch (Exception e) {
        // Ignore
      } finally {
        if (socket != null) {
          try {
            socket.close();
          } catch (IOException e) {
            throw new RuntimeException(e);
          }
        }
      }
      return 2181;
    }
  }
  