content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.security.group.provider;
  
  import alluxio.security.group.GroupMappingService;
  
  import com.google.common.collect.Lists;
  
  import java.util.List;
  
  /**
   * A simple implementation of {@link GroupMappingService} that returns a group which is same name
   * with the given user name.
   */
  public final class IdentityUserGroupsMapping implements GroupMappingService {
  
    /**
     * Constructs a new {@link IdentityUserGroupsMapping}.
     */
    public IdentityUserGroupsMapping() {}
  
    /**
     * Returns list of groups for a user.
     *
     * @param user get groups for this user
     * @return list of groups for a given user
     */
    @Override
    public List<String> getGroups(String user) {
      return Lists.newArrayList(user);
    }
  }
  