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.giraph.io.formats; 20 21 import org.apache.giraph.bsp.BspInputSplit; 22 import org.apache.hadoop.mapreduce.InputSplit; 23 24 import java.io.IOException; 25 import java.util.ArrayList; 26 import java.util.List; 27 28 /** 29 * Utility methods for PseudoRandom input formats 30 */ 31 public class PseudoRandomUtils { 32 /** Do not instantiate */ 33 private PseudoRandomUtils() { } 34 35 /** 36 * Create desired number of {@link BspInputSplit}s 37 * 38 * @param numSplits How many splits to create 39 * @return List of {@link BspInputSplit}s 40 */ 41 public static List<InputSplit> getSplits(int numSplits) throws IOException, 42 InterruptedException { 43 List<InputSplit> inputSplitList = new ArrayList<InputSplit>(); 44 for (int i = 0; i < numSplits; ++i) { 45 inputSplitList.add(new BspInputSplit(i, numSplits)); 46 } 47 return inputSplitList; 48 } 49 }