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   * Licensed to the Apache Software Foundation (ASF) under one
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   * distributed with this work for additional information
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   * 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,
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   * See the License for the specific language governing permissions and
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  package org.apache.cassandra.distributed.test;
  
  import java.io.IOException;
  
  import org.junit.Test;
  
  import com.datastax.driver.core.Session;
  import org.apache.cassandra.distributed.Cluster;
  import org.apache.cassandra.distributed.api.ConsistencyLevel;
  import org.apache.cassandra.distributed.api.Feature;
  import org.apache.cassandra.distributed.api.IInvokableInstance;
  import org.apache.cassandra.distributed.api.NodeToolResult;
  import org.apache.cassandra.distributed.api.QueryResults;
  import org.apache.cassandra.distributed.api.SimpleQueryResult;
  import org.apache.cassandra.distributed.shared.AssertUtils;
  
  public class ClientNetworkStopStartTest extends TestBaseImpl
  {
      /**
       * @see <a href="https://issues.apache.org/jira/browse/CASSANDRA-16127">CASSANDRA-16127</a>
       */
      @Test
      public void stopStartNative() throws IOException
      {
          //TODO why does trunk need GOSSIP for native to work but no other branch does?
          try (Cluster cluster = init(Cluster.build(1).withConfig(c -> c.with(Feature.GOSSIP, Feature.NATIVE_PROTOCOL)).start()))
          {
              IInvokableInstance node = cluster.get(1);
              assertTransportStatus(node, "binary", true);
              node.nodetoolResult("disablebinary").asserts().success();
              assertTransportStatus(node, "binary", false);
              node.nodetoolResult("enablebinary").asserts().success();
              assertTransportStatus(node, "binary", true);
  
              // now use it to make sure it still works!
              cluster.schemaChange("CREATE TABLE " + KEYSPACE + ".tbl (pk int, value int, PRIMARY KEY (pk))");
  
              try (com.datastax.driver.core.Cluster client = com.datastax.driver.core.Cluster.builder().addContactPoints(node.broadcastAddress().getAddress()).build();
                   Session session = client.connect())
              {
                  session.execute("INSERT INTO " + KEYSPACE + ".tbl (pk, value) VALUES (?, ?)", 0, 0);
              }
  
              SimpleQueryResult qr = cluster.coordinator(1).executeWithResult("SELECT * FROM " + KEYSPACE + ".tbl", ConsistencyLevel.ALL);
              AssertUtils.assertRows(qr, QueryResults.builder().row(0, 0).build());
          }
      }
  
      private static void assertTransportStatus(IInvokableInstance node, String transport, boolean running)
      {
          assertNodetoolStdout(node, running ? "running" : "not running", running ? "not running" : null, "status" + transport);
      }
  
      private static void assertNodetoolStdout(IInvokableInstance node, String expectedStatus, String notExpected, String... nodetool)
      {
          NodeToolResult result = node.nodetoolResult(nodetool);
          result.asserts().success().stdoutContains(expectedStatus);
          if (notExpected != null)
              result.asserts().stdoutNotContains(notExpected);
      }
  }
  