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.ArrayList; 021import java.util.List; 022 023import org.apache.yetus.audience.InterfaceAudience; 024import org.apache.hadoop.conf.Configuration; 025import org.apache.hadoop.hbase.security.User; 026 027// Strictly removes a specified label 028@InterfaceAudience.Private 029public class LabelFilteringScanLabelGenerator implements ScanLabelGenerator { 030 031 public static String labelToFilter = null; 032 033 @Override 034 public Configuration getConf() { 035 return null; 036 } 037 038 @Override 039 public void setConf(Configuration conf) { 040 041 } 042 043 @Override 044 public List<String> getLabels(User user, Authorizations authorizations) { 045 if (authorizations != null) { 046 if (labelToFilter == null) return authorizations.getLabels(); 047 List<String> newAuths = new ArrayList<>(); 048 for (String auth : authorizations.getLabels()) { 049 if (!labelToFilter.equals(auth)) newAuths.add(auth); 050 } 051 return newAuths; 052 } 053 return null; 054 } 055}