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
   *
   *    https://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 org.apache.bigtop.manager.stack.core.utils;
  
  import org.apache.bigtop.manager.common.enums.OSType;
  import org.apache.bigtop.manager.common.shell.ShellResult;
  import org.apache.bigtop.manager.common.utils.os.OSDetection;
  import org.apache.bigtop.manager.stack.core.exception.StackException;
  import org.apache.bigtop.manager.stack.core.spi.PrioritySPIFactory;
  import org.apache.bigtop.manager.stack.core.spi.repo.PackageManager;
  import org.apache.bigtop.manager.stack.core.spi.repo.PackageManagerType;
  
  import org.apache.commons.lang3.EnumUtils;
  
  import java.util.Collection;
  import java.util.List;
  import java.util.Map;
  
  public class PackageUtils {
  
      private static final Map<String, PackageManager> PACKAGE_MANAGER_MAP;
  
      static {
          PrioritySPIFactory<PackageManager> spiFactory = new PrioritySPIFactory<>(PackageManager.class);
          PACKAGE_MANAGER_MAP = spiFactory.getSPIMap();
      }
  
      public static PackageManager getPackageManager() {
          String os = OSDetection.getOS();
          OSType currentOS;
          if (EnumUtils.isValidEnumIgnoreCase(OSType.class, os)) {
              currentOS = OSType.valueOf(os.toUpperCase());
          } else {
              throw new StackException("PackageManager Unsupported OS for [" + os + "]");
          }
  
          PackageManager packageManager = null;
          PackageManagerType[] values = PackageManagerType.values();
          for (PackageManagerType value : values) {
              List<OSType> osTypes = value.getOsTypes();
              if (osTypes.contains(currentOS)) {
                  packageManager = PACKAGE_MANAGER_MAP.get(value.name());
                  break;
              }
          }
  
          if (packageManager == null) {
              throw new StackException("Unsupported PackageManager for [" + os + "]");
          }
          return packageManager;
      }
  
      /**
       * install package
       *
       * @param packageList packages need to be installed
       */
      public static ShellResult install(Collection<String> packageList) {
          if (packageList == null || packageList.isEmpty()) {
              ShellResult shellResult = new ShellResult();
              shellResult.setExitCode(-1);
              shellResult.setErrMsg("packageList is empty");
              return shellResult;
          }
  
          return getPackageManager().installPackage(packageList);
      }
  
      /**
       * List installed packages
       *
       * @return list of installed packages
       */
      public static List<String> listInstalledPackages() {
          return getPackageManager().listPackages();
      }
  }
  