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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  
19  package org.apache.hadoop.hbase.util.byterange.impl;
20  
21  import java.util.List;
22  import java.util.TreeMap;
23  
24  import org.apache.hadoop.classification.InterfaceAudience;
25  import org.apache.hadoop.hbase.util.ByteRange;
26  import org.apache.hadoop.hbase.util.CollectionUtils;
27  import org.apache.hadoop.hbase.util.IterableUtils;
28  import org.apache.hadoop.hbase.util.byterange.ByteRangeSet;
29  
30  /**
31   * Not currently used in production, but here as a benchmark comparison against ByteRangeHashSet.
32   */
33  @InterfaceAudience.Private
34  public class ByteRangeTreeSet extends ByteRangeSet {
35  
36    /************************ constructors *****************************/
37  
38    public ByteRangeTreeSet() {
39      this.uniqueIndexByUniqueRange = new TreeMap<ByteRange, Integer>();
40    }
41  
42    public ByteRangeTreeSet(List<ByteRange> rawByteArrays) {
43      this();//needed to initialize the TreeSet
44      for(ByteRange in : IterableUtils.nullSafe(rawByteArrays)){
45        add(in);
46      }
47    }
48  
49    @Override
50    public void addToSortedRanges() {
51      sortedRanges.addAll(CollectionUtils.nullSafe(uniqueIndexByUniqueRange.keySet()));
52    }
53  
54  }