Package sizzle.aggregators

Source Code of sizzle.aggregators.TestMinimumAggregator

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package sizzle.aggregators;

import java.util.ArrayList;
import java.util.List;

import org.apache.hadoop.io.NullWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mrunit.mapreduce.ReduceDriver;
import org.junit.Test;

import sizzle.io.EmitKey;
import sizzle.io.EmitValue;

public class TestMinimumAggregator {
  @Test
  public void testMinimumAggregatorTopTenCombine() {
    final List<EmitValue> values = new ArrayList<EmitValue>();
    values.add(new EmitValue("two", 200));
    values.add(new EmitValue("thirteen", 1300));
    values.add(new EmitValue("six", 600));
    values.add(new EmitValue("four", 400));
    values.add(new EmitValue("seven", 700));
    values.add(new EmitValue("fourteen", 1400));
    values.add(new EmitValue("three", 300));
    values.add(new EmitValue("nine", 900));
    values.add(new EmitValue("one", 100));
    values.add(new EmitValue("twelve", 1200));
    values.add(new EmitValue("ten", 1000));
    values.add(new EmitValue("eleven", 1100));
    values.add(new EmitValue("five", 500));
    values.add(new EmitValue("eight", 800));

    final ReduceDriver<EmitKey, EmitValue, EmitKey, EmitValue> reduceDriver = new ReduceDriver<EmitKey, EmitValue, EmitKey, EmitValue>(
        new MinimumSizzleCombiner());
    reduceDriver.setInput(new EmitKey("test"), values);
    reduceDriver.addOutput(new EmitKey("test"), new EmitValue("one", 100.0));
    reduceDriver.addOutput(new EmitKey("test"), new EmitValue("two", 200.0));
    reduceDriver.addOutput(new EmitKey("test"), new EmitValue("three", 300.0));
    reduceDriver.addOutput(new EmitKey("test"), new EmitValue("four", 400.0));
    reduceDriver.addOutput(new EmitKey("test"), new EmitValue("five", 500.0));
    reduceDriver.addOutput(new EmitKey("test"), new EmitValue("six", 600.0));
    reduceDriver.addOutput(new EmitKey("test"), new EmitValue("seven", 700.0));
    reduceDriver.addOutput(new EmitKey("test"), new EmitValue("eight", 800.0));
    reduceDriver.addOutput(new EmitKey("test"), new EmitValue("nine", 900.0));
    reduceDriver.addOutput(new EmitKey("test"), new EmitValue("ten", 1000.0));
    reduceDriver.runTest();
  }

  @Test
  public void testMinimumAggregatorTopTenReduce() {
    final List<EmitValue> values = new ArrayList<EmitValue>();
    values.add(new EmitValue("two", 200));
    values.add(new EmitValue("thirteen", 1300));
    values.add(new EmitValue("six", 600));
    values.add(new EmitValue("four", 400));
    values.add(new EmitValue("seven", 700));
    values.add(new EmitValue("fourteen", 1400));
    values.add(new EmitValue("three", 300));
    values.add(new EmitValue("nine", 900));
    values.add(new EmitValue("one", 100));
    values.add(new EmitValue("twelve", 1200));
    values.add(new EmitValue("ten", 1000));
    values.add(new EmitValue("eleven", 1100));
    values.add(new EmitValue("five", 500));
    values.add(new EmitValue("eight", 800));

    final ReduceDriver<EmitKey, EmitValue, Text, NullWritable> reduceDriver10 = new ReduceDriver<EmitKey, EmitValue, Text, NullWritable>(
        new MinimumSizzleReducerTen());
    reduceDriver10.setInput(new EmitKey("test"), values);
    reduceDriver10.addOutput(new Text("test[] = one weight 100.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = two weight 200.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = three weight 300.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = four weight 400.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = five weight 500.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = six weight 600.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = seven weight 700.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = eight weight 800.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = nine weight 900.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = ten weight 1000.0"), NullWritable.get());
    reduceDriver10.runTest();

    final ReduceDriver<EmitKey, EmitValue, Text, NullWritable> reduceDriver1 = new ReduceDriver<EmitKey, EmitValue, Text, NullWritable>(
        new MinimumSizzleReducerOne());
    reduceDriver1.setInput(new EmitKey("test"), values);
    reduceDriver1.addOutput(new Text("test[] = one weight 100.0"), NullWritable.get());
    reduceDriver1.runTest();
  }

  @Test
  public void testMinimumAggregatorAllEqual() {
    final List<EmitValue> values = new ArrayList<EmitValue>();
    values.add(new EmitValue("two", 100));
    values.add(new EmitValue("thirteen", 100));
    values.add(new EmitValue("six", 100));
    values.add(new EmitValue("four", 100));
    values.add(new EmitValue("seven", 100));
    values.add(new EmitValue("fourteen", 100));
    values.add(new EmitValue("three", 100));
    values.add(new EmitValue("nine", 100));
    values.add(new EmitValue("one", 100));
    values.add(new EmitValue("twelve", 100));
    values.add(new EmitValue("ten", 100));
    values.add(new EmitValue("eleven", 100));
    values.add(new EmitValue("five", 100));
    values.add(new EmitValue("eight", 100));

    final ReduceDriver<EmitKey, EmitValue, Text, NullWritable> reduceDriver10 = new ReduceDriver<EmitKey, EmitValue, Text, NullWritable>(
        new MinimumSizzleReducerTen());
    reduceDriver10.setInput(new EmitKey("test"), values);
    reduceDriver10.addOutput(new Text("test[] = eight weight 100.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = eleven weight 100.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = five weight 100.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = four weight 100.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = fourteen weight 100.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = nine weight 100.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = one weight 100.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = seven weight 100.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = six weight 100.0"), NullWritable.get());
    reduceDriver10.addOutput(new Text("test[] = ten weight 100.0"), NullWritable.get());
    reduceDriver10.runTest();

    final ReduceDriver<EmitKey, EmitValue, Text, NullWritable> reduceDriver1 = new ReduceDriver<EmitKey, EmitValue, Text, NullWritable>(
        new MinimumSizzleReducerOne());
    reduceDriver1.setInput(new EmitKey("test"), values);
    reduceDriver1.addOutput(new Text("test[] = eight weight 100.0"), NullWritable.get());
    reduceDriver1.runTest();
  }
}

class MinimumSizzleCombiner extends sizzle.runtime.SizzleCombiner {
  public MinimumSizzleCombiner() {
    super();

    this.tables.put("test", new Table(new sizzle.aggregators.MinimumAggregator(10)));
  }
}

class MinimumSizzleReducerTen extends sizzle.runtime.SizzleReducer {
  public MinimumSizzleReducerTen() {
    super();

    this.tables.put("test", new Table(new sizzle.aggregators.MinimumAggregator(10)));
  }
}

class MinimumSizzleReducerOne extends sizzle.runtime.SizzleReducer {
  public MinimumSizzleReducerOne() {
    super();

    this.tables.put("test", new Table(new sizzle.aggregators.MinimumAggregator(1)));
  }
}
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Related Classes of sizzle.aggregators.TestMinimumAggregator

  • org.apache.hadoop.io.Text
  • sizzle.io.EmitKey
  • sizzle.io.EmitValue
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