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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.regionserver.compactions;
20  
21  import java.util.ArrayList;
22  import java.util.Iterator;
23  import java.util.List;
24  
25  import org.apache.hadoop.hbase.regionserver.StoreFile;
26  
27  class SpikyFileListGenerator extends StoreFileListGenerator {
28  
29    SpikyFileListGenerator() {
30      super(SpikyFileListGenerator.class);
31    }
32  
33    @Override
34    public Iterator<List<StoreFile>> iterator() {
35      return new Iterator<List<StoreFile>>() {
36        private int count = 0;
37  
38        @Override
39        public boolean hasNext() {
40          return count < (MAX_FILE_GEN_ITERS);
41        }
42  
43        @Override
44        public List<StoreFile> next() {
45          count += 1;
46          ArrayList<StoreFile> files = new ArrayList<StoreFile>(NUM_FILES_GEN);
47          for (int x = 0; x < NUM_FILES_GEN; x++) {
48            int fileSize = random.nextInt(5) + 1;
49            if ( x % 10 == 0) {
50              fileSize = random.nextInt(5) + 50;
51            }
52            files.add(createMockStoreFile(fileSize));
53          }
54          return files;
55        }
56  
57        @Override
58        public void remove() {
59        }
60      };
61    }
62  }