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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 java.util.List;
  import java.util.stream.Collectors;
  
  import org.junit.Test;
  
  import org.apache.cassandra.distributed.Cluster;
  import org.apache.cassandra.distributed.api.Feature;
  import org.apache.cassandra.distributed.api.IInvokableInstance;
  import org.apache.cassandra.locator.Replicas;
  import org.apache.cassandra.service.StorageService;
  import org.apache.cassandra.tcm.ClusterMetadata;
  import org.apache.cassandra.tools.ToolRunner;
  import org.apache.cassandra.utils.FBUtilities;
  
  import static org.junit.Assert.assertEquals;
  
  public class GetEndpointsTest extends TestBaseImpl
  {
      @Test
      public void testGetEndpointsForLocalTable() throws IOException
      {
          try (Cluster cluster = init(Cluster.build(3)
                                             .start()))
          {
              for (IInvokableInstance i : cluster)
              {
                  ToolRunner.ToolResult tool = ToolRunner.invokeNodetoolJvmDtestIsolated(i, "-pp", "getendpoints", "system", "compaction_history", "7d431310-43c9-11ef-bd50-53ff742309a9");
                  tool.asserts().success();
                  List<String> endpoints = tool.getStdout().trim().lines().collect(Collectors.toList());
                  assertEquals(1, endpoints.size());
                  i.runOnInstance(() -> assertEquals(FBUtilities.getBroadcastAddressAndPort().getHostAddressAndPort(), endpoints.get(0)));
              }
          }
      }
  
      @Test
      public void testGetEndpointsForMetadataTables() throws IOException
      {
          try (Cluster cluster = init(Cluster.build(3)
                                             .withConfig(c -> c.with(Feature.NETWORK))
                                             .start()))
          {
              ToolRunner.ToolResult tool;
              for (IInvokableInstance i : cluster)
              {
                  tool = ToolRunner.invokeNodetoolJvmDtestIsolated(i, "-pp", "getendpoints", "system", "local_metadata_log", "1");
                  tool.asserts().success();
                  List<String> systemKsEndpoints = tool.getStdout().trim().lines().collect(Collectors.toList());
                  assertEquals(1, systemKsEndpoints.size());
                  i.runOnInstance(() -> assertEquals(FBUtilities.getBroadcastAddressAndPort().getHostAddressAndPort(), systemKsEndpoints.get(0)));
  
                  tool = ToolRunner.invokeNodetoolJvmDtestIsolated(i, "-pp", "getendpoints", "system_cluster_metadata", "distributed_metadata_log", "1");
                  tool.asserts().success();
                  List<String> scmEndpoints = tool.getStdout().trim().lines().collect(Collectors.toList());
                  assertEquals(1, scmEndpoints.size());
                  i.runOnInstance(() -> assertEquals(Replicas.stringify(ClusterMetadata.current().fullCMSMembersAsReplicas(), true), scmEndpoints));
              }
              cluster.get(1).nodetoolResult("cms", "reconfigure", "3").asserts().success();
              for (IInvokableInstance i : cluster)
              {
                  i.runOnInstance(() -> {
                      List<String> endpoints = StorageService.instance.getNaturalEndpointsWithPort("system_cluster_metadata", "distributed_metadata_log", "1");
                      assertEquals(endpoints.toString(), 3, endpoints.size());
                      assertEquals(Replicas.stringify(ClusterMetadata.current().fullCMSMembersAsReplicas(), true), endpoints);
                  });
  
              }
          }
      }
  }
  