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.lang.reflect.Type;
  import java.util.function.Consumer;
  import org.openqa.selenium.internal.Require;
  
  public class EventListener<X> implements Consumer<Event> {
  
    private final EventName name;
    private final Consumer<X> handler;
    private final Type type;
  
    public EventListener(EventName name, Type typeOfX, Consumer<X> handler) {
      this.name = Require.nonNull("Event name", name);
      this.type = Require.nonNull("Type", typeOfX);
      this.handler = Require.nonNull("Event handler", handler);
    }
  
    public EventName getEventName() {
      return name;
    }
  
    @Override
    public void accept(Event event) {
      handler.accept(event.getData(type));
    }
  }
  