| /* |
| * 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.pirk.responder.wideskies.mapreduce; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.io.LongWritable; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.mapreduce.Mapper; |
| import org.apache.pirk.utils.CSVOutputUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Pass through mapper for encrypted column multiplication |
| * |
| */ |
| public class ColumnMultMapper extends Mapper<LongWritable,Text,LongWritable,Text> |
| { |
| private static final Logger logger = LoggerFactory.getLogger(ColumnMultMapper.class); |
| |
| private LongWritable keyOut = null; |
| private Text valueOut = null; |
| |
| @Override |
| public void setup(Context ctx) throws IOException, InterruptedException |
| { |
| super.setup(ctx); |
| |
| keyOut = new LongWritable(); |
| valueOut = new Text(); |
| } |
| |
| @Override |
| public void map(LongWritable key, Text value, Context ctx) throws IOException, InterruptedException |
| { |
| logger.debug("key = " + key.toString() + " value = " + value.toString()); |
| |
| String tokens[] = CSVOutputUtils.extractCSVOutput(value); |
| logger.debug("value = " + value.toString() + " tokens[0] = " + tokens[0] + " tokens[1] = " + tokens[1]); |
| |
| keyOut.set(Integer.parseInt(tokens[0])); // colNum |
| valueOut.set(tokens[1]); // colValue |
| ctx.write(keyOut, valueOut); |
| } |
| } |