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   * "License"); you may not use this file except in compliance
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   *
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  package org.apache.cassandra.distributed.test;
  
  import java.net.InetSocketAddress;
  
  import org.apache.cassandra.distributed.Cluster;
  import org.apache.cassandra.distributed.api.IInstance;
  import org.apache.cassandra.distributed.api.IInstanceConfig;
  import org.apache.cassandra.distributed.api.IInvokableInstance;
  import org.apache.cassandra.distributed.api.IIsolatedExecutor;
  import org.apache.cassandra.service.StorageService;
  import org.junit.Assert;
  import org.junit.Test;
  
  import com.datastax.driver.core.ConsistencyLevel;
  import com.datastax.driver.core.ResultSet;
  import com.datastax.driver.core.Session;
  import com.datastax.driver.core.SimpleStatement;
  import com.datastax.driver.core.Statement;
  import org.apache.cassandra.distributed.api.ICluster;
  import org.apache.cassandra.distributed.impl.RowUtil;
  import org.apache.cassandra.utils.FBUtilities;
  
  import static org.apache.cassandra.config.CassandraRelevantProperties.JOIN_RING;
  import static org.apache.cassandra.distributed.action.GossipHelper.withProperty;
  import static org.apache.cassandra.distributed.api.Feature.GOSSIP;
  import static org.apache.cassandra.distributed.api.Feature.NATIVE_PROTOCOL;
  import static org.apache.cassandra.distributed.api.Feature.NETWORK;
  import static org.apache.cassandra.distributed.api.TokenSupplier.evenlyDistributedTokens;
  import static org.apache.cassandra.distributed.shared.AssertUtils.assertRows;
  import static org.apache.cassandra.distributed.shared.AssertUtils.row;
  import static org.apache.cassandra.distributed.shared.NetworkTopology.singleDcNetworkTopology;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  
  // TODO: this test should be removed after running in-jvm dtests is set up via the shared API repository
  public class NativeProtocolTest extends TestBaseImpl
  {
      @Test
      public void withClientRequests() throws Throwable
      {
          try (ICluster cluster = init(builder().withNodes(3)
                                                .withConfig(config -> config.with(GOSSIP, NETWORK, NATIVE_PROTOCOL))
                                                .start()))
          {
              testNativeRequests(cluster);
          }
      }
  
      public static void testNativeRequests(ICluster dtestCluster)
      {
          IInstance inst = dtestCluster.get(1);
          final InetSocketAddress host = inst.broadcastAddress();
          try (com.datastax.driver.core.Cluster cluster = com.datastax.driver.core.Cluster.builder().addContactPoint("127.0.0.1").build();
               Session session = cluster.connect())
          {
              session.execute("CREATE TABLE " + KEYSPACE + ".tbl (pk int, ck int, v int, PRIMARY KEY (pk, ck));");
              session.execute("INSERT INTO " + KEYSPACE + ".tbl (pk, ck, v) values (1,1,1);");
              Statement select = new SimpleStatement("select * from " + KEYSPACE + ".tbl;").setConsistencyLevel(ConsistencyLevel.ALL);
              final ResultSet resultSet = session.execute(select);
              assertRows(RowUtil.toObjects(resultSet), row(1, 1, 1));
              Assert.assertEquals(dtestCluster.size(), cluster.getMetadata().getAllHosts().size());
          }
      }
  
      @Test
      public void withCounters() throws Throwable
      {
          try (ICluster ignored = init(builder().withNodes(3)
                                                .withConfig(config -> config.with(GOSSIP, NETWORK, NATIVE_PROTOCOL))
                                                .start()))
          {
              final com.datastax.driver.core.Cluster cluster = com.datastax.driver.core.Cluster.builder().addContactPoint("127.0.0.1").build();
              Session session = cluster.connect();
              session.execute("CREATE TABLE " + KEYSPACE + ".tbl (pk int, ck counter, PRIMARY KEY (pk));");
              session.execute("UPDATE " + KEYSPACE + ".tbl set ck = ck + 10 where pk = 1;");
              Statement select = new SimpleStatement("select * from " + KEYSPACE + ".tbl;").setConsistencyLevel(ConsistencyLevel.ALL);
              final ResultSet resultSet = session.execute(select);
              assertRows(RowUtil.toObjects(resultSet), row(1, 10L));
              Assert.assertEquals(3, cluster.getMetadata().getAllHosts().size());
              session.close();
              cluster.close();
          }
      }
  
      @Test
      public void restartTransportOnGossippingOnlyMember() throws Throwable
      {
          int originalNodeCount = 1;
          int expandedNodeCount = originalNodeCount + 1;
  
          try (Cluster cluster = builder().withNodes(originalNodeCount)
                                          .withTokenSupplier(evenlyDistributedTokens(expandedNodeCount, 1))
                                          .withNodeIdTopology(singleDcNetworkTopology(expandedNodeCount, "dc0", "rack0"))
                                          .withConfig(config -> config.with(NETWORK, GOSSIP, NATIVE_PROTOCOL))
                                          .start())
          {
              IInstanceConfig config = cluster.newInstanceConfig();
              IInvokableInstance gossippingOnlyMember = cluster.bootstrap(config);
              withProperty(JOIN_RING, false, () -> gossippingOnlyMember.startup(cluster));
  
              assertTrue(gossippingOnlyMember.callOnInstance((IIsolatedExecutor.SerializableCallable<Boolean>)
                                                             () -> StorageService.instance.isNativeTransportRunning()));
  
              gossippingOnlyMember.runOnInstance((IIsolatedExecutor.SerializableRunnable) () -> StorageService.instance.stopNativeTransport());
  
              assertFalse(gossippingOnlyMember.callOnInstance((IIsolatedExecutor.SerializableCallable<Boolean>)
                                                              () -> StorageService.instance.isNativeTransportRunning()));
  
              gossippingOnlyMember.runOnInstance((IIsolatedExecutor.SerializableRunnable) () -> StorageService.instance.startNativeTransport());
  
              assertTrue(gossippingOnlyMember.callOnInstance((IIsolatedExecutor.SerializableCallable<Boolean>)
                                                             () -> StorageService.instance.isNativeTransportRunning()));
          }
      }
  
      @Test
      public void testBinaryReflectsRpcReadiness() throws Throwable
      {
          try (Cluster cluster = builder().withNodes(1)
                                          .withConfig(config -> config.with(NETWORK, GOSSIP, NATIVE_PROTOCOL)
                                                                      .set("start_native_transport", "false"))
                                          .start())
          {
              IInvokableInstance i = cluster.get(1);
  
              // rpc is false when native transport is not enabled
              assertFalse(i.callOnInstance((IIsolatedExecutor.SerializableCallable<Boolean>) () -> StorageService.instance.isNativeTransportRunning()));
              assertFalse(i.callOnInstance((IIsolatedExecutor.SerializableCallable<Boolean>) () -> StorageService.instance.isRpcReady(FBUtilities.getBroadcastAddressAndPort())));
  
              // but if we enable it, e.g. by nodetool enablebinary, rpc will be enabled
              i.runOnInstance((IIsolatedExecutor.SerializableRunnable) () -> StorageService.instance.startNativeTransport());
              assertTrue(i.callOnInstance((IIsolatedExecutor.SerializableCallable<Boolean>) () -> StorageService.instance.isRpcReady(FBUtilities.getBroadcastAddressAndPort())));
  
              // by calling e.g. nodetool disablebinary, rpc will NOT be set to false again
              // please read CASSANDRA-18935 for in-depth explanation why it is so
              i.runOnInstance((IIsolatedExecutor.SerializableRunnable) () -> StorageService.instance.stopNativeTransport());
              assertTrue(i.callOnInstance((IIsolatedExecutor.SerializableCallable<Boolean>) () -> StorageService.instance.isRpcReady(FBUtilities.getBroadcastAddressAndPort())));
          }
      }
  }
  
  