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.grid.config;
  
  import java.nio.file.Files;
  import java.nio.file.Path;
  import org.openqa.selenium.internal.Require;
  
  public class Configs {
  
    private Configs() {
      // This class is not intended to be instantiated
    }
  
    public static Config from(Path path) {
      Require.nonNull("Path to read from", path);
  
      if (!Files.exists(path)) {
        throw new ConfigException("Path to read from does not exist: " + path);
      }
  
      String fileName = path.getFileName().toString();
      if (fileName.endsWith(".tml") || fileName.endsWith(".toml")) {
        return TomlConfig.from(path);
      }
  
      if (fileName.endsWith(".json")) {
        return JsonConfig.from(path);
      }
  
      throw new ConfigException(
          "Unable to determine file type. The file extension must be one of '.toml' or '.json' "
              + path);
    }
  }
  