/*
    * Copyright 2020-2022 The OSHI Project Contributors
    * SPDX-License-Identifier: MIT
    */
   package oshi.driver.linux;
   
   import oshi.annotation.concurrent.ThreadSafe;
   import oshi.util.ExecutingCommand;
   import oshi.util.ParseUtil;
  
  /**
   * Utility to read info from {@code lshal}
   */
  @ThreadSafe
  public final class Lshal {
  
      private Lshal() {
      }
  
      /**
       * Query the serial number from lshal
       *
       * @return The serial number if available, null otherwise
       */
      public static String querySerialNumber() {
          // if lshal command available (HAL deprecated in newer linuxes)
          String marker = "system.hardware.serial =";
          for (String checkLine : ExecutingCommand.runNative("lshal")) {
              if (checkLine.contains(marker)) {
                  return ParseUtil.getSingleQuoteStringValue(checkLine);
              }
          }
          return null;
      }
  
      /**
       * Query the UUID from lshal
       *
       * @return The UUID if available, null otherwise
       */
      public static String queryUUID() {
          // if lshal command available (HAL deprecated in newer linuxes)
          String marker = "system.hardware.uuid =";
          for (String checkLine : ExecutingCommand.runNative("lshal")) {
              if (checkLine.contains(marker)) {
                  return ParseUtil.getSingleQuoteStringValue(checkLine);
              }
          }
          return null;
      }
  }