code: /**
   * This file is part of Eclipse Steady.
   *
   * 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.
   *
   * SPDX-License-Identifier: Apache-2.0
   * SPDX-FileCopyrightText: Copyright (c) 2018-2020 SAP SE or an SAP affiliate company and Eclipse Steady contributors
   */
  package org.eclipse.steady.kb.command;
  
  import java.util.Collection;
  import java.util.HashMap;
  
  import org.apache.commons.cli.CommandLine;
  import org.apache.commons.cli.CommandLineParser;
  import org.apache.commons.cli.DefaultParser;
  import org.apache.commons.cli.Option;
  import org.apache.commons.cli.Options;
  import org.apache.commons.cli.ParseException;
  import org.eclipse.steady.kb.exception.CommandLineParserException;
  
  /**
   * command parser
   */
  public class CommandParser {
    /**
     * parse a command
     *
     * @param _args array of {@link java.lang.String}
     * @param options a {@link org.apache.commons.cli.Options} object
     * @throws org.eclipse.steady.kb.exception.CommandLineParserException if any.
     * @return a {@link java.util.HashMap} object
     */
    public static HashMap<String, Object> parse(String[] _args, Options options)
        throws CommandLineParserException {
      final CommandLineParser parser = new DefaultParser();
      CommandLine cmd = null;
      try {
        cmd = parser.parse(options, _args, true);
      } catch (ParseException e) {
        throw new CommandLineParserException(e.getMessage());
      }
  
      HashMap<String, Object> mapOptionValues = new HashMap<>();
      Collection<Option> optionCollection = options.getOptions();
      for (Option option : optionCollection) {
        if (option.hasArg()) {
          mapOptionValues.put(option.getOpt(), cmd.getOptionValue(option.getOpt()));
        } else {
          if (cmd.hasOption(option.getOpt()) || cmd.hasOption(option.getLongOpt())) {
            mapOptionValues.put(option.getOpt(), true);
          } else {
            mapOptionValues.put(option.getOpt(), false);
          }
        }
      }
  
      return mapOptionValues;
    }
  }
  