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.bidi.log;
  
  import java.io.StringReader;
  import java.util.Optional;
  import org.openqa.selenium.bidi.Event;
  import org.openqa.selenium.json.Json;
  import org.openqa.selenium.json.JsonInput;
  
  public class Log {
  
    private Log() {
      // A utility class for Log events that returns the event and adds a consumer to map the event
      // response
    }
  
    private static final Json JSON = new Json();
  
    public static Event<LogEntry> entryAdded() {
      return new Event<>(
          "log.entryAdded",
          params -> {
            String type = (String) params.get("type");
  
            Optional<GenericLogEntry> genericLogEntry = Optional.empty();
            Optional<ConsoleLogEntry> consoleLogEntry = Optional.empty();
            Optional<JavascriptLogEntry> javascriptLogEntry = Optional.empty();
  
            if (type != null) {
              try (StringReader reader = new StringReader(JSON.toJson(params));
                  JsonInput input = JSON.newInput(reader)) {
                if ("console".equals(type)) {
                  consoleLogEntry = Optional.ofNullable(input.read(ConsoleLogEntry.class));
                } else if ("javascript".equals(type)) {
                  javascriptLogEntry = Optional.ofNullable(input.read(JavascriptLogEntry.class));
                } else {
                  genericLogEntry = Optional.ofNullable(input.read(GenericLogEntry.class));
                }
              }
            }
  
            return new LogEntry(genericLogEntry, consoleLogEntry, javascriptLogEntry);
          });
    }
  }
  