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.Node;
  import com.datastax.oss.driver.api.core.uuid.Uuids;
  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.ImmutableMap;
  import java.net.InetSocketAddress;
  import java.util.Collections;
  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 AddNodeRefreshTest {
  
    @Mock private InternalDriverContext context;
    @Mock protected MetricsFactory metricsFactory;
    @Mock private ChannelFactory channelFactory;
  
    private DefaultNode node1;
  
    @Before
    public void setup() {
      when(context.getMetricsFactory()).thenReturn(metricsFactory);
      when(context.getChannelFactory()).thenReturn(channelFactory);
      node1 = TestNodeFactory.newNode(1, context);
    }
  
    @Test
    public void should_add_new_node() {
      // Given
      DefaultMetadata oldMetadata =
          new DefaultMetadata(
              ImmutableMap.of(node1.getHostId(), node1), Collections.emptyMap(), null, null);
      UUID newHostId = Uuids.random();
      DefaultEndPoint newEndPoint = TestNodeFactory.newEndPoint(2);
      UUID newSchemaVersion = Uuids.random();
      DefaultNodeInfo newNodeInfo =
          DefaultNodeInfo.builder()
              .withHostId(newHostId)
              .withEndPoint(newEndPoint)
              .withDatacenter("dc1")
              .withRack("rack2")
              .withSchemaVersion(newSchemaVersion)
              .build();
      AddNodeRefresh refresh = new AddNodeRefresh(newNodeInfo);
  
      // When
      MetadataRefresh.Result result = refresh.compute(oldMetadata, false, context);
  
      // Then
      Map<UUID, Node> newNodes = result.newMetadata.getNodes();
      assertThat(newNodes).containsOnlyKeys(node1.getHostId(), newHostId);
      Node node2 = newNodes.get(newHostId);
      assertThat(node2.getEndPoint()).isEqualTo(newEndPoint);
      assertThat(node2.getDatacenter()).isEqualTo("dc1");
      assertThat(node2.getRack()).isEqualTo("rack2");
      assertThat(node2.getHostId()).isEqualTo(newHostId);
      assertThat(node2.getSchemaVersion()).isEqualTo(newSchemaVersion);
      assertThat(result.events).containsExactly(NodeStateEvent.added((DefaultNode) node2));
    }
  
    @Test
    public void should_not_add_existing_node_with_same_id_and_endpoint() {
      // Given
      DefaultMetadata oldMetadata =
          new DefaultMetadata(
              ImmutableMap.of(node1.getHostId(), node1), Collections.emptyMap(), null, null);
      DefaultNodeInfo newNodeInfo =
          DefaultNodeInfo.builder()
              .withHostId(node1.getHostId())
              .withEndPoint(node1.getEndPoint())
              .withDatacenter("dc1")
              .withRack("rack2")
              .build();
      AddNodeRefresh refresh = new AddNodeRefresh(newNodeInfo);
  
      // When
      MetadataRefresh.Result result = refresh.compute(oldMetadata, false, context);
  
      // Then
      assertThat(result.newMetadata.getNodes()).containsOnlyKeys(node1.getHostId());
      // Info is not copied over:
      assertThat(node1.getDatacenter()).isNull();
      assertThat(node1.getRack()).isNull();
      assertThat(result.events).isEmpty();
    }
  
    @Test
    public void should_add_existing_node_with_same_id_but_different_endpoint() {
      // Given
      DefaultMetadata oldMetadata =
          new DefaultMetadata(
              ImmutableMap.of(node1.getHostId(), node1), Collections.emptyMap(), null, null);
      DefaultEndPoint newEndPoint = TestNodeFactory.newEndPoint(2);
      InetSocketAddress newBroadcastRpcAddress = newEndPoint.resolve();
      UUID newSchemaVersion = Uuids.random();
      DefaultNodeInfo newNodeInfo =
          DefaultNodeInfo.builder()
              .withHostId(node1.getHostId())
              .withEndPoint(newEndPoint)
              .withDatacenter("dc1")
              .withRack("rack2")
              .withSchemaVersion(newSchemaVersion)
              .withBroadcastRpcAddress(newBroadcastRpcAddress)
              .build();
      AddNodeRefresh refresh = new AddNodeRefresh(newNodeInfo);
  
      // When
      MetadataRefresh.Result result = refresh.compute(oldMetadata, false, context);
  
      // Then
      Map<UUID, Node> newNodes = result.newMetadata.getNodes();
      assertThat(newNodes).hasSize(1).containsEntry(node1.getHostId(), node1);
      assertThat(node1.getEndPoint()).isEqualTo(newEndPoint);
      assertThat(node1.getDatacenter()).isEqualTo("dc1");
      assertThat(node1.getRack()).isEqualTo("rack2");
      assertThat(node1.getSchemaVersion()).isEqualTo(newSchemaVersion);
      assertThat(result.events).containsExactly(TopologyEvent.suggestUp(newBroadcastRpcAddress));
    }
  }
  