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.channel;
  
  import com.datastax.oss.driver.api.core.metadata.Node;
  import java.util.Objects;
  import net.jcip.annotations.Immutable;
  
  /** Events relating to driver channels. */
  @Immutable
  public class ChannelEvent {
    public enum Type {
      OPENED,
      CLOSED,
      RECONNECTION_STARTED,
      RECONNECTION_STOPPED,
      CONTROL_CONNECTION_FAILED
    }
  
    public static ChannelEvent channelOpened(Node node) {
      return new ChannelEvent(Type.OPENED, node);
    }
  
    public static ChannelEvent channelClosed(Node node) {
      return new ChannelEvent(Type.CLOSED, node);
    }
  
    public static ChannelEvent reconnectionStarted(Node node) {
      return new ChannelEvent(Type.RECONNECTION_STARTED, node);
    }
  
    public static ChannelEvent reconnectionStopped(Node node) {
      return new ChannelEvent(Type.RECONNECTION_STOPPED, node);
    }
  
    /** The control connection tried to use this node, but failed to open a channel. */
    public static ChannelEvent controlConnectionFailed(Node node) {
      return new ChannelEvent(Type.CONTROL_CONNECTION_FAILED, node);
    }
  
    public final Type type;
    public final Node node;
  
    public ChannelEvent(Type type, Node node) {
      this.type = type;
      this.node = node;
    }
  
    @Override
    public boolean equals(Object other) {
      if (other == this) {
        return true;
      } else if (other instanceof ChannelEvent) {
        ChannelEvent that = (ChannelEvent) other;
        return this.type == that.type && Objects.equals(this.node, that.node);
      } else {
        return false;
      }
    }
  
    @Override
    public int hashCode() {
      return Objects.hash(type, node);
    }
  
    @Override
    public String toString() {
      return "ChannelEvent(" + type + ", " + node + ")";
    }
  }
  