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}