| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.wayang.iejoin.operators.spark_helpers; |
| |
| import org.apache.spark.api.java.function.Function2; |
| import org.apache.wayang.core.util.Copyable; |
| import scala.Tuple2; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| |
| /** |
| * Created by khayyzy on 5/28/16. |
| */ |
| public class addUniqueID<Input extends Copyable<Input>> implements |
| Function2<Integer, Iterator<Input>, Iterator<Tuple2<Long, Input>>> { |
| |
| int block; |
| int start; |
| |
| public addUniqueID() { |
| |
| this.start = 0; |
| this.block = 0; |
| } |
| |
| public addUniqueID(int block, int start) { |
| this.block = block; |
| this.start = start; |
| } |
| |
| @SuppressWarnings("unchecked") |
| public Iterator<Tuple2<Long, Input>> call(Integer in, Iterator<Input> arg0) |
| throws Exception { |
| |
| ArrayList<Tuple2<Long, Input>> outList = new ArrayList<Tuple2<Long, Input>>(300000); |
| |
| long tupleLocalID = (block * in) + start; |
| // System.out.println("tupleLocalID = "+tupleLocalID); |
| while (arg0.hasNext()) { |
| |
| Input t = arg0.next().copy(); |
| |
| outList.add(new Tuple2<Long, Input>(tupleLocalID, t)); |
| tupleLocalID = tupleLocalID + 1; |
| } |
| return outList.iterator(); |
| } |
| } |
| |