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.HashMap;
  import org.apache.commons.cli.Options;
  import org.apache.commons.lang.StringUtils;
  import org.apache.logging.log4j.Logger;
  import org.eclipse.steady.kb.Main;
  import org.eclipse.steady.kb.exception.ValidationException;
  
  /**
   * version command
   */
  public class Version implements Command {
  
    private static final Logger log = org.apache.logging.log4j.LogManager.getLogger();
  
    /** {@inheritDoc} */
    @Override
    public void run(HashMap<String, Object> args) {
      String vulasRelease = Main.class.getPackage().getImplementationVersion();
      if (StringUtils.isEmpty(vulasRelease)) {
        log.error("unable to get vulas version");
      } else {
        log.info(vulasRelease);
      }
    }
  
    /** {@inheritDoc} */
    @Override
    public Options getOptions() {
      return new Options();
    }
  
    /** {@inheritDoc} */
    @Override
    public void validate(HashMap<String, Object> args) throws ValidationException {
      // Nothing to validate as help does not have any args
    }
  
    /** {@inheritDoc} */
    @Override
    public Command.NAME getCommandName() {
      return Command.NAME.VERSION;
    }
  }
  