1 /** 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 package org.apache.hadoop.hbase.security.visibility; 19 20 import java.util.List; 21 22 import org.apache.hadoop.hbase.classification.InterfaceAudience; 23 import org.apache.hadoop.conf.Configuration; 24 import org.apache.hadoop.hbase.security.User; 25 26 /** 27 * This is a simple implementation for ScanLabelGenerator. It will just extract labels passed via 28 * Scan#Authorizations. 29 */ 30 @InterfaceAudience.Private 31 public class SimpleScanLabelGenerator implements ScanLabelGenerator { 32 33 private Configuration conf; 34 35 @Override 36 public void setConf(Configuration conf) { 37 this.conf = conf; 38 } 39 40 @Override 41 public Configuration getConf() { 42 return this.conf; 43 } 44 45 @Override 46 public List<String> getLabels(User user, Authorizations authorizations) { 47 if (authorizations != null) { 48 return authorizations.getLabels(); 49 } 50 return null; 51 } 52 }