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.regionserver.compactions; 019 020import java.util.ArrayList; 021import java.util.Iterator; 022import java.util.List; 023 024import org.apache.hadoop.hbase.regionserver.HStoreFile; 025 026class SinusoidalFileListGenerator extends StoreFileListGenerator { 027 SinusoidalFileListGenerator() { 028 super(SinusoidalFileListGenerator.class); 029 } 030 031 @Override 032 public Iterator<List<HStoreFile>> iterator() { 033 return new Iterator<List<HStoreFile>>() { 034 private int count = 0; 035 @Override 036 public boolean hasNext() { 037 return count < MAX_FILE_GEN_ITERS; 038 } 039 040 @Override 041 public List<HStoreFile> next() { 042 count += 1; 043 ArrayList<HStoreFile> files = new ArrayList<>(NUM_FILES_GEN); 044 for (int x = 0; x < NUM_FILES_GEN; x++) { 045 int fileSize = (int) Math.abs(64 * Math.sin((Math.PI * x) / 50.0)) + 1; 046 files.add(createMockStoreFile(fileSize)); 047 } 048 return files; 049 } 050 051 @Override 052 public void remove() { 053 } 054 }; 055 } 056}