content: // Licensed to the Apache Software Foundation (ASF) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The ASF licenses this file
  // to you 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.
  package com.cloud.cpu;
  
  import org.apache.commons.lang3.StringUtils;
  
  public class CPU {
      public enum CPUArch {
          x86("i686", 32),
          amd64("x86_64", 64),
          arm64("aarch64", 64);
  
          private final String type;
          private final int bits;
  
          CPUArch(String type, int bits) {
              this.type = type;
              this.bits = bits;
          }
  
          public static CPUArch getDefault() {
              return amd64;
          }
  
          public String getType() {
              return type;
          }
  
          public int getBits() {
              return bits;
          }
  
          public static CPUArch fromType(String type) {
              if (StringUtils.isBlank(type)) {
                  return getDefault();
              }
              for (CPUArch arch : values()) {
                  if (arch.type.equals(type)) {
                      return arch;
                  }
              }
              throw new IllegalArgumentException("Unsupported arch type: " + type);
          }
  
          public static String getTypesAsCSV() {
              StringBuilder sb = new StringBuilder();
              for (CPUArch arch : values()) {
                  sb.append(arch.getType()).append(",");
              }
              if (sb.length() > 0) {
                  sb.setLength(sb.length() - 1);
              }
              return sb.toString();
          }
      }
  }
  