Assignment3_P2_MergeStockAverageCount.StockPriceMerge_Reducer.java Source code

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Here is the source code for Assignment3_P2_MergeStockAverageCount.StockPriceMerge_Reducer.java

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package Assignment3_P2_MergeStockAverageCount;

import org.apache.hadoop.io.FloatWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Reducer;

import java.io.IOException;

/**
 *
 * @author Chintan
 */
public class StockPriceMerge_Reducer extends Reducer<Text, FloatWritable, Text, FloatWritable> {
    private FloatWritable result = new FloatWritable();

    public void reduce(Text key, Iterable<FloatWritable> values, Context context)
            throws IOException, InterruptedException {

        float sum = 0;
        float count = 0;
        for (FloatWritable val : values) {
            sum += val.get();
            count = count + 1;
        }

        float average = sum / count;
        result.set(average);
        context.write(key, result);
    }
}