001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.security.visibility;
019
020import java.util.List;
021import org.apache.hadoop.conf.Configuration;
022import org.apache.hadoop.hbase.security.User;
023import org.apache.yetus.audience.InterfaceAudience;
024
025/**
026 * This is a simple implementation for ScanLabelGenerator. It will just extract labels passed via
027 * Scan#Authorizations.
028 */
029@InterfaceAudience.Private
030public class SimpleScanLabelGenerator implements ScanLabelGenerator {
031
032  private Configuration conf;
033
034  @Override
035  public void setConf(Configuration conf) {
036    this.conf = conf;
037  }
038
039  @Override
040  public Configuration getConf() {
041    return this.conf;
042  }
043
044  @Override
045  public List<String> getLabels(User user, Authorizations authorizations) {
046    if (authorizations != null) {
047      return authorizations.getLabels();
048    }
049    return null;
050  }
051}