code: ///////////////////////////////////////////////////////////////////////////////////////////////
  // checkstyle: Checks Java source code and other text files for adherence to a set of rules.
  // Copyright (C) 2001-2023 the original author or authors.
  //
  // This library is free software; you can redistribute it and/or
  // modify it under the terms of the GNU Lesser General Public
  // License as published by the Free Software Foundation; either
  // version 2.1 of the License, or (at your option) any later version.
  //
  // This library is distributed in the hope that it will be useful,
  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  // Lesser General Public License for more details.
  //
  // You should have received a copy of the GNU Lesser General Public
  // License along with this library; if not, write to the Free Software
  // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  ///////////////////////////////////////////////////////////////////////////////////////////////
  
  package com.puppycrawl.tools.checkstyle.api;
  
  import java.util.Locale;
  
  /**
   * <p>
   * Severity level for a check violation.
   * </p>
   * <p>
   * Each violation of an audit check is assigned one of the severity levels
   * defined here.
   * </p>
   *
   */
  public enum SeverityLevel {
  
      /** Severity level ignore. */
      IGNORE,
      /** Severity level info. */
      INFO,
      /** Severity level warning. */
      WARNING,
      /** Severity level error. */
      ERROR;
  
      @Override
      public String toString() {
          return getName();
      }
  
      /**
       * Returns name of severity level.
       *
       * @return the name of this severity level.
       */
      public String getName() {
          return name().toLowerCase(Locale.ENGLISH);
      }
  
      /**
       * SeverityLevel factory method.
       *
       * @param securityLevelName level name, such as "ignore", "info", etc.
       * @return the {@code SeverityLevel}
       *     associated with {@code securityLevelName}
       */
      public static SeverityLevel getInstance(String securityLevelName) {
          return valueOf(SeverityLevel.class, securityLevelName.trim()
                  .toUpperCase(Locale.ENGLISH));
      }
  
  }
  