code: /*
   * citygml-tools - Collection of tools for processing CityGML files
   * https://github.com/citygml4j/citygml-tools
   *
   * citygml-tools is part of the citygml4j project
   *
   * Copyright 2018-2023 Claus Nagel <claus.nagel@gmail.com>
   *
   * Licensed 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.citygml4j.tools.option;
  
  import org.citygml4j.core.model.CityGMLVersion;
  import picocli.CommandLine;
  
  public class CityGMLOutputVersion implements Option {
      @CommandLine.Option(names = {"-v", "--citygml-version"},
              description = "CityGML version to use for output file(s): 3.0, 2.0, 1.0. " +
                      "The default is to use the CityGML version of the input file.")
      private String version;
  
      private CityGMLVersion versionOption;
  
      public boolean isSetVersion() {
          return versionOption != null;
      }
  
      public CityGMLVersion getVersion() {
          return versionOption != null ? versionOption : CityGMLVersion.v3_0;
      }
  
      @Override
      public void preprocess(CommandLine commandLine) {
          if (version != null) {
              switch (version) {
                  case "1.0":
                      versionOption = CityGMLVersion.v1_0;
                      break;
                  case "2.0":
                      versionOption = CityGMLVersion.v2_0;
                      break;
                  case "3.0":
                      versionOption = CityGMLVersion.v3_0;
                      break;
                  default:
                      throw new CommandLine.ParameterException(commandLine,
                              "Invalid value for option '--citygml-version': expected one of [3.0, 2.0, 1.0] " +
                                      "but was '" + version + "'");
              }
          }
      }
  }
  