content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.cli;
  
  import alluxio.annotation.PublicApi;
  import alluxio.conf.Configuration;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import javax.annotation.concurrent.ThreadSafe;
  
  /**
   * Validate the Alluxio configuration.
   */
  @ThreadSafe
  @PublicApi
  public final class ValidateConf {
    private static final Logger LOG = LoggerFactory.getLogger(ValidateConf.class);
  
    /**
     * Console program that validates the configuration.
     *
     * @param args there are no arguments needed
     */
    public static void main(String[] args) {
      LOG.info("Validating configuration.");
      try {
        Configuration.global().validate();
        LOG.info("Configuration is valid.");
      } catch (IllegalStateException e) {
        LOG.error("Configuration is invalid", e);
        System.exit(-1);
      }
      System.exit(0);
    }
  
    private ValidateConf() {} // prevent instantiation.
  }
  