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 com.datastax.oss.driver.internal.core.metadata;
  
  import static com.datastax.oss.driver.Assertions.assertThat;
  import static org.mockito.Mockito.when;
  
  import com.datastax.oss.driver.api.core.metadata.EndPoint;
  import com.datastax.oss.driver.api.core.metadata.Node;
  import com.datastax.oss.driver.internal.core.channel.ChannelFactory;
  import com.datastax.oss.driver.internal.core.context.InternalDriverContext;
  import com.datastax.oss.driver.internal.core.metrics.MetricsFactory;
  import com.datastax.oss.driver.shaded.guava.common.collect.ImmutableList;
  import com.datastax.oss.driver.shaded.guava.common.collect.ImmutableSet;
  import java.util.Map;
  import java.util.UUID;
  import org.junit.Before;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.mockito.Mock;
  import org.mockito.junit.MockitoJUnitRunner;
  
  @RunWith(MockitoJUnitRunner.class)
  public class InitialNodeListRefreshTest {
  
    @Mock private InternalDriverContext context;
    @Mock protected MetricsFactory metricsFactory;
    @Mock private ChannelFactory channelFactory;
  
    private DefaultNode contactPoint1;
    private DefaultNode contactPoint2;
    private EndPoint endPoint3;
    private UUID hostId1;
    private UUID hostId2;
    private UUID hostId3;
    private UUID hostId4;
    private UUID hostId5;
  
    @Before
    public void setup() {
      when(context.getMetricsFactory()).thenReturn(metricsFactory);
      when(context.getChannelFactory()).thenReturn(channelFactory);
  
      contactPoint1 = TestNodeFactory.newContactPoint(1, context);
      contactPoint2 = TestNodeFactory.newContactPoint(2, context);
  
      endPoint3 = TestNodeFactory.newEndPoint(3);
      hostId1 = UUID.randomUUID();
      hostId2 = UUID.randomUUID();
      hostId3 = UUID.randomUUID();
      hostId4 = UUID.randomUUID();
      hostId5 = UUID.randomUUID();
    }
  
    @Test
    public void should_copy_contact_points_on_first_endpoint_match_only() {
      // Given
      Iterable<NodeInfo> newInfos =
          ImmutableList.of(
              DefaultNodeInfo.builder()
                  .withEndPoint(contactPoint1.getEndPoint())
                  // in practice there are more fields, but hostId is enough to validate the logic
                  .withHostId(hostId1)
                  .build(),
              DefaultNodeInfo.builder()
                  .withEndPoint(contactPoint2.getEndPoint())
                  .withHostId(hostId2)
                  .build(),
              DefaultNodeInfo.builder().withEndPoint(endPoint3).withHostId(hostId3).build(),
              DefaultNodeInfo.builder()
                  // address translator can translate node addresses to the same endpoints
                  .withEndPoint(contactPoint2.getEndPoint())
                  .withHostId(hostId4)
                  .build(),
              DefaultNodeInfo.builder()
                  // address translator can translate node addresses to the same endpoints
                  .withEndPoint(endPoint3)
                  .withHostId(hostId5)
                  .build());
      InitialNodeListRefresh refresh =
          new InitialNodeListRefresh(newInfos, ImmutableSet.of(contactPoint1, contactPoint2));
  
      // When
      MetadataRefresh.Result result = refresh.compute(DefaultMetadata.EMPTY, false, context);
  
      // Then
      // contact points have been copied to the metadata, and completed with missing information
      Map<UUID, Node> newNodes = result.newMetadata.getNodes();
      assertThat(newNodes).containsOnlyKeys(hostId1, hostId2, hostId3, hostId4, hostId5);
      assertThat(newNodes.get(hostId1)).isEqualTo(contactPoint1);
      assertThat(contactPoint1.getHostId()).isEqualTo(hostId1);
      assertThat(newNodes.get(hostId2)).isEqualTo(contactPoint2);
      assertThat(contactPoint2.getHostId()).isEqualTo(hostId2);
      // And
      // node has been added for the new endpoint
      assertThat(newNodes.get(hostId3).getEndPoint()).isEqualTo(endPoint3);
      assertThat(newNodes.get(hostId3).getHostId()).isEqualTo(hostId3);
      // And
      // nodes have been added for duplicated endpoints
      assertThat(newNodes.get(hostId4).getEndPoint()).isEqualTo(contactPoint2.getEndPoint());
      assertThat(newNodes.get(hostId4).getHostId()).isEqualTo(hostId4);
      assertThat(newNodes.get(hostId5).getEndPoint()).isEqualTo(endPoint3);
      assertThat(newNodes.get(hostId5).getHostId()).isEqualTo(hostId5);
      assertThat(result.events)
          .containsExactlyInAnyOrder(
              NodeStateEvent.added((DefaultNode) newNodes.get(hostId3)),
              NodeStateEvent.added((DefaultNode) newNodes.get(hostId4)),
              NodeStateEvent.added((DefaultNode) newNodes.get(hostId5)));
    }
  
    @Test
    public void should_add_other_nodes() {
      // Given
      Iterable<NodeInfo> newInfos =
          ImmutableList.of(
              DefaultNodeInfo.builder()
                  .withEndPoint(contactPoint1.getEndPoint())
                  // in practice there are more fields, but hostId is enough to validate the logic
                  .withHostId(hostId1)
                  .build(),
              DefaultNodeInfo.builder()
                  .withEndPoint(contactPoint2.getEndPoint())
                  .withHostId(hostId2)
                  .build(),
              DefaultNodeInfo.builder().withEndPoint(endPoint3).withHostId(hostId3).build());
      InitialNodeListRefresh refresh =
          new InitialNodeListRefresh(newInfos, ImmutableSet.of(contactPoint1, contactPoint2));
  
      // When
      MetadataRefresh.Result result = refresh.compute(DefaultMetadata.EMPTY, false, context);
  
      // Then
      // new node created in addition to the contact points
      Map<UUID, Node> newNodes = result.newMetadata.getNodes();
      assertThat(newNodes).containsOnlyKeys(hostId1, hostId2, hostId3);
      Node node3 = newNodes.get(hostId3);
      assertThat(node3.getEndPoint()).isEqualTo(endPoint3);
      assertThat(node3.getHostId()).isEqualTo(hostId3);
    }
  
    @Test
    public void should_ignore_duplicate_host_ids() {
      // Given
      Iterable<NodeInfo> newInfos =
          ImmutableList.of(
              DefaultNodeInfo.builder()
                  .withEndPoint(contactPoint1.getEndPoint())
                  // in practice there are more fields, but hostId is enough to validate the logic
                  .withHostId(hostId1)
                  .withDatacenter("dc1")
                  .build(),
              DefaultNodeInfo.builder()
                  .withEndPoint(contactPoint1.getEndPoint())
                  .withDatacenter("dc2")
                  .withHostId(hostId1)
                  .build());
      InitialNodeListRefresh refresh =
          new InitialNodeListRefresh(newInfos, ImmutableSet.of(contactPoint1));
  
      // When
      MetadataRefresh.Result result = refresh.compute(DefaultMetadata.EMPTY, false, context);
  
      // Then
      // only the first nodeInfo should have been copied
      Map<UUID, Node> newNodes = result.newMetadata.getNodes();
      assertThat(newNodes).containsOnlyKeys(hostId1);
      assertThat(newNodes.get(hostId1)).isEqualTo(contactPoint1);
      assertThat(contactPoint1.getHostId()).isEqualTo(hostId1);
      assertThat(contactPoint1.getDatacenter()).isEqualTo("dc1");
    }
  }
  