Package eu.stratosphere.api.java.record.operators

Examples of eu.stratosphere.api.java.record.operators.MapOperator

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  @Test
  public void testTicket158() {
    // construct the plan
    FileDataSource source = new FileDataSource(new DummyInputFormat(), IN_FILE, "Source");
   
    MapOperator map = MapOperator.builder(new IdentityMap()).name("Map1").input(source).build();
   
    ReduceOperator reduce1 = ReduceOperator.builder(new IdentityReduce(), IntValue.class, 0).name("Reduce1").input(map).build();
   
    CrossOperator cross1 = CrossOperator.builder(new DummyCrossStub()).name("Cross1").input1(reduce1).input2(source).build();
   
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    FileDataSink result =
        new FileDataSink(new StringTupleDataOutFormat(), this.outputPath, "Output");
    result.setDegreeOfParallelism(degreeOfParallelism);
   
    MapOperator lineFilter =
        MapOperator.builder(LiFilter.class)
      .name("LineItemFilter")
      .build();
    lineFilter.setDegreeOfParallelism(degreeOfParallelism);
   
    MapOperator ordersFilter =
        MapOperator.builder(OFilter.class)
      .name("OrdersFilter")
      .build();
    ordersFilter.setDegreeOfParallelism(degreeOfParallelism);
   
    JoinOperator join =
        JoinOperator.builder(JoinLiO.class, IntValue.class, 0, 0)
      .name("OrdersLineitemsJoin")
      .build();
      join.setDegreeOfParallelism(degreeOfParallelism);
   
    ReduceOperator aggregation =
        ReduceOperator.builder(CountAgg.class, StringValue.class, 0)
      .name("AggregateGroupBy")
      .build();
    aggregation.setDegreeOfParallelism(this.degreeOfParallelism);
   
    lineFilter.setInput(lineItems);
    ordersFilter.setInput(orders);
    join.setFirstInput(ordersFilter);
    join.setSecondInput(lineFilter);
    aggregation.setInput(join);
    result.setInput(aggregation);
   
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    edges.setParameter(EdgeWithDegreesInputFormat.VERTEX_DELIMITER_CHAR, '|');
    edges.setParameter(EdgeWithDegreesInputFormat.DEGREE_DELIMITER_CHAR, ',');

    // =========================== Triangle Enumeration ============================
   
    MapOperator toLowerDegreeEdge = MapOperator.builder(new ProjectToLowerDegreeVertex())
        .input(edges)
        .name("Select lower-degree Edge")
        .build();
   
    MapOperator projectOutCounts = MapOperator.builder(new ProjectOutCounts())
        .input(edges)
        .name("Project to vertex Ids only")
        .build();

    ReduceOperator buildTriads = ReduceOperator.builder(new BuildTriads(), IntValue.class, 0)
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      int numSubTasks, String verticesInput, String edgeInput, String output, int maxIterations)
  {
    // data source for initial vertices
    FileDataSource initialVertices = new FileDataSource(new CsvInputFormat(' ', LongValue.class), verticesInput, "Vertices");
   
    MapOperator verticesWithId = MapOperator.builder(DuplicateLongMap.class).input(initialVertices).name("Assign Vertex Ids").build();
   
    DeltaIteration iteration = new DeltaIteration(0, "Connected Components Iteration");
    iteration.setInitialSolutionSet(verticesWithId);
    iteration.setInitialWorkset(verticesWithId);
    iteration.setMaximumNumberOfIterations(maxIterations);
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    FileDataSource edges = new FileDataSource(new EdgeInputFormat(), edgeInput, "Input Edges");
    edges.setParameter(EdgeInputFormat.ID_DELIMITER_CHAR, delimiter);

    // =========================== Vertex Degree ============================
   
    MapOperator projectEdge = MapOperator.builder(new ProjectEdge())
        .input(edges).name("Project Edge").build();
   
    ReduceOperator edgeCounter = ReduceOperator.builder(new CountEdges(), IntValue.class, 0)
        .input(projectEdge).name("Count Edges for Vertex").build();
   
    ReduceOperator countJoiner = ReduceOperator.builder(new JoinCountsAndUniquify(), IntValue.class, 0)
        .keyField(IntValue.class, 1)
        .input(edgeCounter).name("Join Counts").build();
   
   
    // =========================== Triangle Enumeration ============================
   
    MapOperator toLowerDegreeEdge = MapOperator.builder(new ProjectToLowerDegreeVertex())
        .input(countJoiner).name("Select lower-degree Edge").build();
   
    MapOperator projectOutCounts = MapOperator.builder(new ProjectOutCounts())
        .input(countJoiner).name("Project out Counts").build();

    ReduceOperator buildTriads = ReduceOperator.builder(new BuildTriads(), IntValue.class, 0)
        .input(toLowerDegreeEdge).name("Build Triads").build();
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  public static Plan getPlan(int numSubTasks, String verticesInput, String edgeInput, String output, int maxIterations) {

    // data source for initial vertices
    FileDataSource initialVertices = new FileDataSource(new CsvInputFormat(' ', LongValue.class), verticesInput, "Vertices");
   
    MapOperator verticesWithId = MapOperator.builder(DuplicateLongMap.class).input(initialVertices).name("Assign Vertex Ids").build();
   
    DeltaIteration iteration = new DeltaIteration(0, "Connected Components Iteration");
    iteration.setInitialSolutionSet(verticesWithId);
    iteration.setInitialWorkset(verticesWithId);
    iteration.setMaximumNumberOfIterations(maxIterations);
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    FileDataSink result =
      new FileDataSink(new StringTupleDataOutFormat(), this.outputPath, "Output");
    result.setDegreeOfParallelism(this.degreeOfParallelism);
   
    MapOperator lineItemFilter =
      MapOperator.builder(new LineItemFilter())
      .name("LineItem Filter")
      .build();
    lineItemFilter.setDegreeOfParallelism(this.degreeOfParallelism);
   
    ReduceOperator groupByReturnFlag =
      ReduceOperator.builder(new GroupByReturnFlag(), StringValue.class, 0)
      .name("groupyBy")
      .build();
   
    lineItemFilter.setInput(lineItems);
    groupByReturnFlag.setInput(lineItemFilter);
    result.setInput(groupByReturnFlag);
   
    return new Plan(result, "TPC-H 1");
  }
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        .name("Compute sum (Reduce)")
        .build();
   
    iteration.setNextPartialSolution(sumReduce);
   
    MapOperator terminationMapper = MapOperator.builder(new TerminationMapper())
        .input(iteration.getPartialSolution())
        .name("Compute termination criterion (Map)")
        .build();
   
    iteration.setTerminationCriterion(terminationMapper);
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        new ContractITCaseInputFormat(), input2Path);
    DelimitedInputFormat.configureDelimitedFormat(input2)
      .recordDelimiter('\n');
    input2.setDegreeOfParallelism(config.getInteger("UnionTest#NoSubtasks", 1));
   
    MapOperator testMapper = MapOperator.builder(new TestMapper()).build();
    testMapper.setDegreeOfParallelism(config.getInteger("UnionTest#NoSubtasks", 1));

    FileDataSink output = new FileDataSink(
        new ContractITCaseOutputFormat(), resultPath);
    output.setDegreeOfParallelism(1);

    output.setInput(testMapper);

    testMapper.addInput(input1);
    testMapper.addInput(input2);

    return new Plan(output);
  }
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      .fieldDelimiter('|')
      .field(LongValue.class, 0)
      .field(DoubleValue.class, 5);

    // create MapOperator for filtering Orders tuples
    MapOperator filterO1 = MapOperator.builder(new FilterO())
      .name("FilterO")
      .input(orders1)
      .build();
    // filter configuration
    filterO1.setParameter(TPCHQuery3.YEAR_FILTER, 1993);
    filterO1.setParameter(TPCHQuery3.PRIO_FILTER, "5");
    filterO1.getCompilerHints().setFilterFactor(0.05f);
   
    // create MapOperator for filtering Orders tuples
    MapOperator filterO2 = MapOperator.builder(new FilterO())
      .name("FilterO")
      .input(orders2)
      .build();
    // filter configuration
    filterO2.setParameter(TPCHQuery3.YEAR_FILTER, 1993);
    filterO2.setParameter(TPCHQuery3.PRIO_FILTER, "5");

    // create JoinOperator for joining Orders and LineItems
    @SuppressWarnings("unchecked")
    JoinOperator joinLiO = JoinOperator.builder(new JoinLiO(), LongValue.class, 0, 0)
      .input1(filterO2, filterO1)
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