/*
*
* * Copyright (c) 2011-2015 EPFL DATA Laboratory
* * Copyright (c) 2014-2015 The Squall Collaboration (see NOTICE)
* *
* * All rights reserved.
* *
* * Licensed 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 ch.epfl.data.squall.examples.imperative.shj;
import ch.epfl.data.squall.components.DataSourceComponent;
import ch.epfl.data.squall.components.EquiJoinComponent;
import ch.epfl.data.squall.expressions.ColumnReference;
import ch.epfl.data.squall.expressions.Multiplication;
import ch.epfl.data.squall.expressions.Subtraction;
import ch.epfl.data.squall.expressions.ValueExpression;
import ch.epfl.data.squall.expressions.ValueSpecification;
import ch.epfl.data.squall.operators.AggregateOperator;
import ch.epfl.data.squall.operators.AggregateSumOperator;
import ch.epfl.data.squall.operators.ProjectOperator;
import ch.epfl.data.squall.operators.SelectOperator;
import ch.epfl.data.squall.predicates.ComparisonPredicate;
import ch.epfl.data.squall.query_plans.QueryBuilder;
import ch.epfl.data.squall.query_plans.QueryPlan;
import ch.epfl.data.squall.types.DateType;
import ch.epfl.data.squall.types.DoubleType;
import ch.epfl.data.squall.types.IntegerType;
import ch.epfl.data.squall.types.NumericType;
import ch.epfl.data.squall.types.StringType;
import ch.epfl.data.squall.types.Type;
import org.apache.log4j.Logger;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.Map;
public class TPCH3PredicatePlan extends QueryPlan {
private static Logger LOG = Logger.getLogger(TPCH3Plan.class);
private static final IntegerType _ic = new IntegerType();
private static final String _customerMktSegment = "BUILDING";
private static final String _dateStr = "1995-03-15";
private static final Type<Date> _dateConv = new DateType();
private static final NumericType<Double> _doubleConv = new DoubleType();
private static final Type<String> _sc = new StringType();
private static final Date _date = _dateConv.fromString(_dateStr);
private final QueryBuilder _queryBuilder = new QueryBuilder();
public TPCH3PredicatePlan(String dataPath, String extension, Map conf) {
// -------------------------------------------------------------------------------------
final List<Integer> hashCustomer = Arrays.asList(0);
final SelectOperator selectionCustomer = new SelectOperator(
new ComparisonPredicate(new ColumnReference(_sc, 6),
new ValueSpecification(_sc, _customerMktSegment)));
final ProjectOperator projectionCustomer = new ProjectOperator(
new int[] { 0 });
final DataSourceComponent relationCustomer = new DataSourceComponent(
"CUSTOMER", dataPath + "customer" + extension)
.setOutputPartKey(hashCustomer).add(selectionCustomer)
.add(projectionCustomer);
_queryBuilder.add(relationCustomer);
// -------------------------------------------------------------------------------------
final List<Integer> hashOrders = Arrays.asList(1);
final SelectOperator selectionOrders = new SelectOperator(
new ComparisonPredicate(ComparisonPredicate.LESS_OP,
new ColumnReference(_dateConv, 4),
new ValueSpecification(_dateConv, _date)));
final ProjectOperator projectionOrders = new ProjectOperator(new int[] {
0, 1, 4, 7 });
final DataSourceComponent relationOrders = new DataSourceComponent(
"ORDERS", dataPath + "orders" + extension)
.setOutputPartKey(hashOrders).add(selectionOrders)
.add(projectionOrders);
_queryBuilder.add(relationOrders);
// -------------------------------------------------------------------------------------
ColumnReference colC = new ColumnReference(_ic, 0);
ColumnReference colO = new ColumnReference(_ic, 1);
ComparisonPredicate C_O_comp = new ComparisonPredicate(
ComparisonPredicate.EQUAL_OP, colC, colO);
final EquiJoinComponent C_Ojoin = new EquiJoinComponent(
relationCustomer, relationOrders).add(
new ProjectOperator(new int[] { 1, 3, 4 })).setOutputPartKey(
Arrays.asList(0)).setJoinPredicate(C_O_comp);
_queryBuilder.add(C_Ojoin);
// -------------------------------------------------------------------------------------
final List<Integer> hashLineitem = Arrays.asList(0);
final SelectOperator selectionLineitem = new SelectOperator(
new ComparisonPredicate(ComparisonPredicate.GREATER_OP,
new ColumnReference(_dateConv, 10),
new ValueSpecification(_dateConv, _date)));
final ProjectOperator projectionLineitem = new ProjectOperator(
new int[] { 0, 5, 6 });
final DataSourceComponent relationLineitem = new DataSourceComponent(
"LINEITEM", dataPath + "lineitem" + extension)
.setOutputPartKey(hashLineitem).add(selectionLineitem)
.add(projectionLineitem);
_queryBuilder.add(relationLineitem);
// -------------------------------------------------------------------------------------
// set up aggregation function on the StormComponent(Bolt) where join is
// performed
// 1 - discount
final ValueExpression<Double> substract = new Subtraction(
new ValueSpecification(_doubleConv, 1.0), new ColumnReference(
_doubleConv, 5));
// extendedPrice*(1-discount)
final ValueExpression<Double> product = new Multiplication(
new ColumnReference(_doubleConv, 4), substract);
final AggregateOperator agg = new AggregateSumOperator(product, conf)
.setGroupByColumns(Arrays.asList(0, 1, 2));
ColumnReference colC_O = new ColumnReference(_ic, 0);
ColumnReference colL = new ColumnReference(_ic, 0);
ComparisonPredicate C_O_L_comp = new ComparisonPredicate(
ComparisonPredicate.EQUAL_OP, colC_O, colL);
EquiJoinComponent finalComp = new EquiJoinComponent(C_Ojoin,
relationLineitem).add(agg).setJoinPredicate(C_O_L_comp);
_queryBuilder.add(finalComp);
// -------------------------------------------------------------------------------------
}
@Override
public QueryBuilder getQueryPlan() {
return _queryBuilder;
}
}