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 com.datastax.oss.driver.api.core.loadbalancing.NodeDistance;
  import java.util.Objects;
  import net.jcip.annotations.Immutable;
  
  /**
   * Indicates that the load balancing policy has assigned a new distance to a host.
   *
   * <p>This is informational only: firing this event manually does <b>not</b> change the distance.
   */
  @Immutable
  public class DistanceEvent {
    public final NodeDistance distance;
    public final DefaultNode node;
  
    public DistanceEvent(NodeDistance distance, DefaultNode node) {
      this.distance = distance;
      this.node = node;
    }
  
    @Override
    public boolean equals(Object other) {
      if (other == this) {
        return true;
      } else if (other instanceof DistanceEvent) {
        DistanceEvent that = (DistanceEvent) other;
        return this.distance == that.distance && Objects.equals(this.node, that.node);
      } else {
        return false;
      }
    }
  
    @Override
    public int hashCode() {
      return Objects.hash(this.distance, this.node);
    }
  
    @Override
    public String toString() {
      return "DistanceEvent(" + distance + ", " + node + ")";
    }
  }
  