/*
*
* * 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.traditional;
import ch.epfl.data.squall.components.Component;
import ch.epfl.data.squall.components.DataSourceComponent;
import ch.epfl.data.squall.components.OperatorComponent;
import ch.epfl.data.squall.components.hyper_cube.HyperCubeJoinComponentFactory;
import ch.epfl.data.squall.expressions.ColumnReference;
import ch.epfl.data.squall.expressions.DateSum;
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.BetweenPredicate;
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.LongType;
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.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Map;
public class TraditionalTPCH5Plan extends QueryPlan {
private static Logger LOG = Logger.getLogger(TraditionalTPCH5Plan.class);
private static final Type<Date> _dc = new DateType();
private static final Type<Long> _lc = new LongType();
private static final Type<String> _sc = new StringType();
private static final NumericType<Double> _doubleConv = new DoubleType();
private final QueryBuilder _queryBuilder = new QueryBuilder();
// query variables
private static Date _date1, _date2;
private static final String REGION_NAME = "ASIA";
private static void computeDates() {
// date2 = date1 + 1 year
final String date1Str = "1994-01-01";
final int interval = 1;
final int unit = Calendar.YEAR;
// 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 TraditionalTPCH5Plan(String dataPath, String extension, Map conf) {
computeDates();
// -------------------------------------------------------------------------------------
final List<Integer> hashRegion = Arrays.asList(0);
final SelectOperator selectionRegion = new SelectOperator(
new ComparisonPredicate(new ColumnReference(_sc, 1),
new ValueSpecification(_sc, REGION_NAME)));
final ProjectOperator projectionRegion = new ProjectOperator(
new int[] { 0 });
final DataSourceComponent relationRegion = new DataSourceComponent(
"REGION", dataPath + "region" + extension, conf)
.setOutputPartKey(hashRegion).add(selectionRegion)
.add(projectionRegion);
_queryBuilder.add(relationRegion);
// -------------------------------------------------------------------------------------
final List<Integer> hashNation = Arrays.asList(2);
final ProjectOperator projectionNation = new ProjectOperator(new int[] {
0, 1, 2 });
final DataSourceComponent relationNation = new DataSourceComponent(
"NATION", dataPath + "nation" + extension, conf).setOutputPartKey(
hashNation).add(projectionNation);
_queryBuilder.add(relationNation);
// -------------------------------------------------------------------------------------
final List<Integer> hashSupplier = Arrays.asList(1);
final ProjectOperator projectionSupplier = new ProjectOperator(
new int[] { 0, 3 });
final DataSourceComponent relationSupplier = new DataSourceComponent(
"SUPPLIER", dataPath + "supplier" + extension, conf)
.setOutputPartKey(hashSupplier).add(projectionSupplier);
_queryBuilder.add(relationSupplier);
// -------------------------------------------------------------------------------------
final List<Integer> hashLineitem = Arrays.asList(1);
final ProjectOperator projectionLineitem = new ProjectOperator(
new int[] { 0, 2, 5, 6 });
final DataSourceComponent relationLineitem = new DataSourceComponent(
"LINEITEM", dataPath + "lineitem" + extension, conf)
.setOutputPartKey(hashLineitem).add(projectionLineitem);
_queryBuilder.add(relationLineitem);
// -------------------------------------------------------------------------------------
final List<Integer> hashCustomer = Arrays.asList(0);
final ProjectOperator projectionCustomer = new ProjectOperator(
new int[] { 0, 3 });
final DataSourceComponent relationCustomer = new DataSourceComponent(
"CUSTOMER", dataPath + "customer" + extension, conf)
.setOutputPartKey(hashCustomer).add(projectionCustomer);
_queryBuilder.add(relationCustomer);
// -------------------------------------------------------------------------------------
final List<Integer> hashOrders = Arrays.asList(1);
final SelectOperator selectionOrders = new SelectOperator(
new BetweenPredicate(new ColumnReference(_dc, 4), true,
new ValueSpecification(_dc, _date1), false,
new ValueSpecification(_dc, _date2)));
final ProjectOperator projectionOrders = new ProjectOperator(new int[] {
0, 1 });
final DataSourceComponent relationOrders = new DataSourceComponent(
"ORDERS", dataPath + "orders" + extension, conf)
.setOutputPartKey(hashOrders).add(selectionOrders)
.add(projectionOrders);
_queryBuilder.add(relationOrders);
// -------------------------------------------------------------------------------------
HyperCubeJoinComponentFactory joiner = new HyperCubeJoinComponentFactory(
new Component[]{relationRegion, relationNation, relationSupplier,
relationLineitem, relationCustomer, relationOrders});
AggregateOperator agg = new AggregateSumOperator(new ColumnReference(_doubleConv, 1), conf).setGroupByColumns(0);
_queryBuilder.add(joiner.createHyperCubeJoinOperator().add(agg));
}
public QueryBuilder getQueryPlan() {
return _queryBuilder;
}
}