code: // Licensed to the Software Freedom Conservancy (SFC) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The SFC 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 org.openqa.selenium.events;
  
  import java.util.Objects;
  import java.util.StringJoiner;
  import java.util.UUID;
  import org.openqa.selenium.internal.Require;
  import org.openqa.selenium.json.Json;
  import org.openqa.selenium.json.JsonOutput;
  
  public class Event {
  
    private static final Json JSON = new Json();
    private final UUID id;
    private final EventName eventName;
    private final String data;
  
    public Event(EventName eventName, Object data) {
      this(UUID.randomUUID(), eventName, data);
    }
  
    public Event(UUID id, EventName eventName, Object data) {
      this.id = Require.nonNull("Message id", id);
      this.eventName = Require.nonNull("Event type", eventName);
  
      StringBuilder builder = new StringBuilder();
      try (JsonOutput out = JSON.newOutput(builder)) {
        out.setPrettyPrint(false).writeClassName(false).write(data);
      }
      this.data = builder.toString();
    }
  
    public UUID getId() {
      return id;
    }
  
    public EventName getType() {
      return eventName;
    }
  
    public <T> T getData(java.lang.reflect.Type typeOfT) {
      return JSON.toType(data, typeOfT);
    }
  
    public String getRawData() {
      return data;
    }
  
    @Override
    public String toString() {
      return new StringJoiner(", ", Event.class.getSimpleName() + "[", "]")
          .add("id=" + id)
          .add("type=" + eventName)
          .add("data=" + data)
          .toString();
    }
  
    @Override
    public boolean equals(Object o) {
      if (!(o instanceof Event)) {
        return false;
      }
  
      Event that = (Event) o;
      return Objects.equals(this.getId(), that.getId())
          && Objects.equals(this.getType(), that.getType())
          && Objects.equals(this.getRawData(), that.getRawData());
    }
  
    @Override
    public int hashCode() {
      return Objects.hash(getId(), getType(), data);
    }
  }
  