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;
021
022import org.apache.yetus.audience.InterfaceAudience;
023import org.apache.hadoop.conf.Configuration;
024import org.apache.hadoop.hbase.security.User;
025
026/**
027 * This is a simple implementation for ScanLabelGenerator. It will just extract labels passed via
028 * Scan#Authorizations.
029 */
030@InterfaceAudience.Private
031public class SimpleScanLabelGenerator implements ScanLabelGenerator {
032
033  private Configuration conf;
034
035  @Override
036  public void setConf(Configuration conf) {
037    this.conf = conf;
038  }
039
040  @Override
041  public Configuration getConf() {
042    return this.conf;
043  }
044
045  @Override
046  public List<String> getLabels(User user, Authorizations authorizations) {
047    if (authorizations != null) {
048      return authorizations.getLabels();
049    }
050    return null;
051  }
052}