content: /*
   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
   ~                                                                               ~
   ~ The MIT License (MIT)                                                         ~
   ~                                                                               ~
   ~ Copyright (c) 2015-2025 miaixz.org OSHI and other contributors.               ~
   ~                                                                               ~
   ~ Permission is hereby granted, free of charge, to any person obtaining a copy  ~
   ~ of this software and associated documentation files (the "Software"), to deal ~
   ~ in the Software without restriction, including without limitation the rights  ~
   ~ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell     ~
   ~ copies of the Software, and to permit persons to whom the Software is         ~
   ~ furnished to do so, subject to the following conditions:                      ~
   ~                                                                               ~
   ~ The above copyright notice and this permission notice shall be included in    ~
   ~ all copies or substantial portions of the Software.                           ~
   ~                                                                               ~
   ~ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR    ~
   ~ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,      ~
   ~ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE   ~
   ~ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER        ~
   ~ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, ~
   ~ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN     ~
   ~ THE SOFTWARE.                                                                 ~
   ~                                                                               ~
   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
  */
  package org.miaixz.bus.health.linux.driver.proc;
  
  import java.util.List;
  import java.util.Locale;
  import java.util.stream.Collectors;
  
  import org.miaixz.bus.core.center.regex.Pattern;
  import org.miaixz.bus.core.lang.Normal;
  import org.miaixz.bus.core.lang.annotation.ThreadSafe;
  import org.miaixz.bus.core.lang.tuple.Tuple;
  import org.miaixz.bus.health.Builder;
  import org.miaixz.bus.health.Parsing;
  import org.miaixz.bus.health.linux.ProcPath;
  
  /**
   * Utility to read CPU info from {@code /proc/cpuinfo}
   *
   * @author Kimi Liu
   * @since Java 17+
   */
  @ThreadSafe
  public final class CpuInfo {
  
      /**
       * Gets the CPU manufacturer from {@code /proc/cpuinfo}
       *
       * @return The manufacturer if known, null otherwise
       */
      public static String queryCpuManufacturer() {
          List<String> cpuInfo = Builder.readFile(ProcPath.CPUINFO);
          for (String line : cpuInfo) {
              if (line.startsWith("CPU implementer")) {
                  int part = Parsing.parseLastInt(line, 0);
                  switch (part) {
                      case 0x41:
                          return "ARM";
  
                      case 0x42:
                          return "Broadcom";
  
                      case 0x43:
                          return "Cavium";
  
                      case 0x44:
                          return "DEC";
  
                      case 0x4e:
                          return "Nvidia";
  
                      case 0x50:
                          return "APM";
  
                      case 0x51:
                          return "Qualcomm";
  
                      case 0x53:
                          return "Samsung";
  
                      case 0x56:
                          return "Marvell";
  
                      case 0x66:
                          return "Faraday";
  
                      case 0x69:
                          return "Intel";
  
                      default:
                          return null;
                  }
              }
          }
          return null;
      }
  
      /**
       * Gets the board manufacturer, model, version, and serial number from {@code /proc/cpuinfo}
       *
       * @return A quartet of strings for manufacturer, model, version, and serial number. Each one may be null if
       *         unknown.
       */
      public static Tuple queryBoardInfo() {
          String pcManufacturer = null;
          String pcModel = null;
          String pcVersion = null;
          String pcSerialNumber = null;
  
          List<String> cpuInfo = Builder.readFile(ProcPath.CPUINFO);
          for (String line : cpuInfo) {
              String[] splitLine = Pattern.SPACES_COLON_SPACE_PATTERN.split(line);
              if (splitLine.length < 2) {
                  continue;
              }
              switch (splitLine[0]) {
                  case "Hardware":
                      pcModel = splitLine[1];
                      break;
  
                  case "Revision":
                      pcVersion = splitLine[1];
                      if (pcVersion.length() > 1) {
                          pcManufacturer = queryBoardManufacturer(pcVersion.charAt(1));
                      }
                      break;
  
                  case "Serial":
                      pcSerialNumber = splitLine[1];
                      break;
  
                  default:
                      // Do nothing
              }
          }
          return new Tuple(pcManufacturer, pcModel, pcVersion, pcSerialNumber);
      }
  
      private static String queryBoardManufacturer(char digit) {
          switch (digit) {
              case '0':
                  return "Sony UK";
  
              case '1':
                  return "Egoman";
  
              case '2':
                  return "Embest";
  
              case '3':
                  return "Sony Japan";
  
              case '4':
                  return "Embest";
  
              case '5':
                  return "Stadium";
  
              default:
                  return Normal.UNKNOWN;
          }
      }
  
      public static List<String> queryFeatureFlags() {
          return Builder.readFile(ProcPath.CPUINFO).stream().filter(f -> {
              String s = f.toLowerCase(Locale.ROOT);
              return s.startsWith("flags") || s.startsWith("features");
          }).distinct().collect(Collectors.toList());
      }
  
  }
  