/*
* 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.debug;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.Map;
import org.apache.log4j.Logger;
import ch.epfl.data.squall.components.DataSourceComponent;
import ch.epfl.data.squall.expressions.ColumnReference;
import ch.epfl.data.squall.expressions.ValueSpecification;
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.NumericType;
import ch.epfl.data.squall.types.StringType;
import ch.epfl.data.squall.types.Type;
public class TPCH3L1Plan extends QueryPlan {
private static Logger LOG = Logger.getLogger(TPCH3L1Plan.class);
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 TPCH3L1Plan(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 });
DataSourceComponent relationCustomer = new DataSourceComponent(
"CUSTOMER", dataPath + "customer" + extension)
.setOutputPartKey(hashCustomer).add(selectionCustomer)
.add(projectionCustomer).setPrintOut(false);
_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 });
DataSourceComponent relationOrders = new DataSourceComponent("ORDERS",
dataPath + "orders" + extension).setOutputPartKey(hashOrders)
.add(selectionOrders).add(projectionOrders).setPrintOut(false);
_queryBuilder.add(relationOrders);
// -------------------------------------------------------------------------------------
}
@Override
public QueryBuilder getQueryPlan() {
return _queryBuilder;
}
}