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.cli;
  
  import org.apache.commons.cli.CommandLine;
  import org.apache.commons.cli.CommandLineParser;
  import org.apache.commons.cli.DefaultParser;
  import org.apache.commons.cli.HelpFormatter;
  import org.apache.commons.cli.Options;
  import org.apache.commons.cli.ParseException;
  import org.apache.logging.log4j.Logger;
  import org.eclipse.steady.goals.AbstractGoal;
  import org.eclipse.steady.goals.GoalConfigurationException;
  import org.eclipse.steady.goals.GoalExecutionException;
  import org.eclipse.steady.goals.GoalFactory;
  import org.eclipse.steady.shared.enums.GoalClient;
  import org.eclipse.steady.shared.enums.GoalType;
  import org.eclipse.steady.shared.json.model.Application;
  import org.eclipse.steady.shared.json.model.Space;
  
  /**
   * Command line interface (CLI) to execute goals related to {@link Application}s or {@link Space}s.
   * Mandatory configuration parameters such as the backend URL or the workspace token have
   * to be specified as system properties (-D) or using a configuration file "steady-&lt;foo&gt;.properties".
   */
  public class VulasCli {
  
    private static final Logger log = org.apache.logging.log4j.LogManager.getLogger();
  
    private static GoalType goalType = null;
  
    private static AbstractGoal goal = null;
  
    /**
     * <p>main.</p>
     *
     * @param _args an array of {@link java.lang.String} objects.
     * @throws org.eclipse.steady.goals.GoalConfigurationException if any.
     * @throws org.eclipse.steady.goals.GoalExecutionException if any.
     */
    public static void main(String[] _args)
        throws GoalConfigurationException, GoalExecutionException {
  
      // Prepare parsing of cmd line arguments
      final Options options = new Options();
      options.addOption(
          "goal",
          "goal",
          true,
          "Goal to be executed (clean, cleanSpace, app, a2c, t2c, instr, report, upload)");
  
      // Get the goal to be executed
      try {
        final CommandLineParser parser = new DefaultParser();
        final CommandLine cmd = parser.parse(options, _args);
        String g = cmd.getOptionValue("goal", null);
  
        // Ugly workaround to correct the non-intuitive goal type SPACECLEAN and SPACEDEL
        // TODO: Change GoalType.SPACECLEAN and GoalType.SPACEDEL
        if ("cleanSpace".equals(g)) g = "spaceClean";
        else if ("cleanSpace".equals(g)) g = "spaceDel";
  
        goalType = GoalType.parseGoal(g);
      }
      // Happens for unknown/invalid options
      catch (ParseException pe) {
        log.error(pe.getMessage());
        final HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp("Vulas Command Line Interface", options);
        return;
      }
      // Happens during the parsing of the goal
      catch (IllegalArgumentException iae) {
        log.error(iae.getMessage());
        final HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp("Vulas Command Line Interface", options);
        return;
      }
  
      // Create and execute the goal
      try {
        goal = GoalFactory.create(goalType, GoalClient.CLI);
        goal.executeSync();
      } catch (IllegalStateException ise) {
        log.error(ise.getMessage());
      } catch (IllegalArgumentException iae) {
        log.error(iae.getMessage());
      }
    }
  }
  