Package plan_runner.query_plans

Source Code of plan_runner.query_plans.ThetaTPCH4Plan

package plan_runner.query_plans;

import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Map;

import org.apache.log4j.Logger;

import plan_runner.components.Component;
import plan_runner.components.DataSourceComponent;
import plan_runner.components.OperatorComponent;
import plan_runner.components.ThetaJoinComponentFactory;
import plan_runner.components.ThetaJoinDynamicComponentAdvisedEpochs;
import plan_runner.components.ThetaJoinStaticComponent;
import plan_runner.conversion.DateConversion;
import plan_runner.conversion.IntegerConversion;
import plan_runner.conversion.TypeConversion;
import plan_runner.expressions.ColumnReference;
import plan_runner.expressions.DateSum;
import plan_runner.expressions.ValueExpression;
import plan_runner.expressions.ValueSpecification;
import plan_runner.operators.AggregateCountOperator;
import plan_runner.operators.AggregateOperator;
import plan_runner.operators.DistinctOperator;
import plan_runner.operators.ProjectOperator;
import plan_runner.operators.SelectOperator;
import plan_runner.predicates.BetweenPredicate;
import plan_runner.predicates.ComparisonPredicate;
import plan_runner.query_plans.QueryPlan;
import plan_runner.query_plans.ThetaQueryPlansParameters;

public class ThetaTPCH4Plan {
  private static Logger LOG = Logger.getLogger(ThetaTPCH4Plan.class);

  private static final TypeConversion<Date> _dc = new DateConversion();
  private static final IntegerConversion _ic = new IntegerConversion();
  private QueryPlan _queryPlan = new QueryPlan();

  //query variables
  private static Date _date1, _date2;

  private static void computeDates() {
    // date2= date1 + 3 months
    String date1Str = "1993-07-01";
    int interval = 3;
    int unit = Calendar.MONTH;

    //setting _date1
    _date1 = _dc.fromString(date1Str);

    //setting _date2
    ValueExpression<Date> date1Ve, date2Ve;
    date1Ve = new ValueSpecification<Date>(_dc, _date1);
    date2Ve = new DateSum(date1Ve, unit, interval);
    _date2 = date2Ve.eval(null);
    // tuple is set to null since we are computing based on constants
  }

  public ThetaTPCH4Plan(String dataPath, String extension, Map conf) {
    computeDates();

    int Theta_JoinType = ThetaQueryPlansParameters.getThetaJoinType(conf);
    //-------------------------------------------------------------------------------------
    List<Integer> hashOrders = Arrays.asList(0);

    SelectOperator selectionOrders = new SelectOperator(new BetweenPredicate(
        new ColumnReference(_dc, 4), true, new ValueSpecification(_dc, _date1), false,
        new ValueSpecification(_dc, _date2)));

    ProjectOperator projectionOrders = new ProjectOperator(new int[] { 0, 5 });

    DataSourceComponent relationOrders = new DataSourceComponent("ORDERS", dataPath + "orders"
        + extension, _queryPlan).setHashIndexes(hashOrders).addOperator(selectionOrders)
        .addOperator(projectionOrders);

    //-------------------------------------------------------------------------------------
    List<Integer> hashLineitem = Arrays.asList(0);

    SelectOperator selectionLineitem = new SelectOperator(new ComparisonPredicate(
        ComparisonPredicate.LESS_OP, new ColumnReference(_dc, 11), new ColumnReference(_dc,
            12)));

    DistinctOperator distinctLineitem = new DistinctOperator(conf, new int[] { 0 });

    DataSourceComponent relationLineitem = new DataSourceComponent("LINEITEM", dataPath
        + "lineitem" + extension, _queryPlan).setHashIndexes(hashLineitem)
        .addOperator(selectionLineitem).addOperator(distinctLineitem);

    //-------------------------------------------------------------------------------------

    ColumnReference colO = new ColumnReference(_ic, 0);
    ColumnReference colL = new ColumnReference(_ic, 0);
    ComparisonPredicate O_L_comp = new ComparisonPredicate(ComparisonPredicate.EQUAL_OP, colO,
        colL);

    Component O_Ljoin = ThetaJoinComponentFactory
        .createThetaJoinOperator(Theta_JoinType, relationOrders, relationLineitem,
            _queryPlan).setHashIndexes(Arrays.asList(1)).setJoinPredicate(O_L_comp);

    //-------------------------------------------------------------------------------------
    // set up aggregation function on a separate StormComponent(Bolt)
    AggregateOperator aggOp = new AggregateCountOperator(conf).setGroupByColumns(Arrays
        .asList(1));
    OperatorComponent finalComponent = new OperatorComponent(O_Ljoin, "FINAL_RESULT",
        _queryPlan).addOperator(aggOp);

    //-------------------------------------------------------------------------------------

  }

  public QueryPlan getQueryPlan() {
    return _queryPlan;
  }
}
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