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.Collections;
022import java.util.List;
023
024import org.apache.yetus.audience.InterfaceAudience;
025
026/**
027 * This class contains visibility labels associated with a Scan/Get deciding which all labeled data
028 * current scan/get can access.
029 */
030@InterfaceAudience.Public
031public class Authorizations {
032
033  private List<String> labels;
034  public Authorizations(String... labels) {
035    this.labels = new ArrayList<>(labels.length);
036    Collections.addAll(this.labels, labels);
037  }
038
039  public Authorizations(List<String> labels) {
040    this.labels = labels;
041  }
042
043  public List<String> getLabels() {
044    return Collections.unmodifiableList(this.labels);
045  }
046  
047  @Override
048  public String toString() {
049    StringBuilder sb = new StringBuilder();
050    sb.append("[ ");
051    for (String label: labels) {
052      sb.append(label);
053      sb.append(' ');
054    }
055    sb.append(']');
056    return sb.toString();
057  }
058
059}