/*
* 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.ewh.examples;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import ch.epfl.data.squall.components.Component;
import ch.epfl.data.squall.components.DataSourceComponent;
import ch.epfl.data.squall.components.theta.ThetaJoinComponentFactory;
import ch.epfl.data.squall.ewh.components.DummyComponent;
import ch.epfl.data.squall.expressions.ColumnReference;
import ch.epfl.data.squall.expressions.ValueExpression;
import ch.epfl.data.squall.expressions.ValueSpecification;
import ch.epfl.data.squall.operators.PrintOperator;
import ch.epfl.data.squall.operators.ProjectOperator;
import ch.epfl.data.squall.operators.SelectOperator;
import ch.epfl.data.squall.predicates.AndPredicate;
import ch.epfl.data.squall.predicates.BetweenPredicate;
import ch.epfl.data.squall.predicates.ComparisonPredicate;
import ch.epfl.data.squall.predicates.Predicate;
import ch.epfl.data.squall.query_plans.QueryBuilder;
import ch.epfl.data.squall.query_plans.QueryPlan;
import ch.epfl.data.squall.query_plans.ThetaQueryPlansParameters;
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 ch.epfl.data.squall.utilities.MyUtilities;
import ch.epfl.data.squall.utilities.SystemParameters;
import ch.epfl.data.squall.utilities.SystemParameters.HistogramType;
//this is Eocd for high scalability
public class ThetaEWHOrdersScaleJoin extends QueryPlan {
private QueryBuilder _queryBuilder = new QueryBuilder();
private static final Type<String> _stringConv = new StringType();
private static final LongType _lc = new LongType();
private static final DoubleType _dc = new DoubleType();
private static ValueSpecification RANGE1_LOWER;
private static ValueSpecification RANGE1_UPPER;
private static ValueSpecification RANGE2_LOWER;
private static ValueSpecification RANGE2_UPPER;
public ThetaEWHOrdersScaleJoin(String dataPath, String extension, Map conf) {
// query-specific
RANGE1_LOWER = new ValueSpecification(_dc, SystemParameters.getDouble(
conf, "RANGE1_LOWER"));
RANGE1_UPPER = new ValueSpecification(_dc,
SystemParameters.getDoubleInfinity(conf, "RANGE1_UPPER"));
RANGE2_LOWER = RANGE1_LOWER;
RANGE2_UPPER = RANGE1_UPPER;
// creates materialized relations
boolean printSelected = MyUtilities.isPrintFilteredLast(conf);
String matName1 = "bosc_1";
String matName2 = "bosc_2";
PrintOperator print1 = printSelected ? new PrintOperator(matName1
+ extension, conf) : null;
PrintOperator print2 = printSelected ? new PrintOperator(matName2
+ extension, conf) : null;
// read from materialized relations
boolean isMaterialized = SystemParameters.isExisting(conf,
"DIP_MATERIALIZED")
&& SystemParameters.getBoolean(conf, "DIP_MATERIALIZED");
boolean isOkcanSampling = SystemParameters.isExisting(conf,
"DIP_SAMPLING")
&& SystemParameters.getBoolean(conf, "DIP_SAMPLING");
boolean isEWHSampling = SystemParameters.isExisting(conf,
"DIP_EWH_SAMPLING")
&& SystemParameters.getBoolean(conf, "DIP_EWH_SAMPLING");
boolean isEWHD2Histogram = SystemParameters.getBooleanIfExist(conf,
HistogramType.D2_COMB_HIST.genConfEntryName());
boolean isEWHS1Histogram = SystemParameters.getBooleanIfExist(conf,
HistogramType.S1_RES_HIST.genConfEntryName());
boolean isSrcHistogram = isEWHD2Histogram || isEWHS1Histogram;
Component relationOrders1, relationOrders2;
// ValueExpression keyField = new ConcatIntString(1, 5); // int
// conversion
// ValueExpression keyField = new ConcatIntDouble(1, 3, 10); //long
// conversion
ValueExpression keyField = new ColumnReference(_lc, 1);
ValueExpression orderKey = new ColumnReference(_stringConv, 0);
ValueExpression orderStatus = new ColumnReference(_stringConv, 2);
ValueExpression totalPrice = new ColumnReference(_stringConv, 3);
ValueExpression orderDate = new ColumnReference(_stringConv, 4);
ProjectOperator projectionLineitem = new ProjectOperator(keyField,
orderKey, orderStatus, totalPrice, orderDate);
final List<Integer> hashLineitem = Arrays.asList(0);
if (!isMaterialized) {
ComparisonPredicate sel11 = new ComparisonPredicate(
ComparisonPredicate.EQUAL_OP, new ColumnReference(
_stringConv, 5), new ValueSpecification(
_stringConv, "4-NOT SPECIFIED"));
// ComparisonPredicate sel12 = new
// ComparisonPredicate(ComparisonPredicate.EQUAL_OP,
// new ColumnReference(_stringConv, 2), new
// ValueSpecification(_stringConv, "O"));
BetweenPredicate sel12 = new BetweenPredicate(new ColumnReference(
_dc, 3), true, RANGE1_LOWER, false, RANGE1_UPPER);
Predicate and1 = new AndPredicate(sel11, sel12);
SelectOperator selectionOrders1 = new SelectOperator(and1);
relationOrders1 = new DataSourceComponent("ORDERS1", dataPath
+ "orders" + extension).add(selectionOrders1).add(print1)
.add(projectionLineitem).setOutputPartKey(hashLineitem);
_queryBuilder.add(relationOrders1);
ComparisonPredicate sel21 = new ComparisonPredicate(
ComparisonPredicate.EQUAL_OP, new ColumnReference(
_stringConv, 5), new ValueSpecification(
_stringConv, "1-URGENT"));
// ComparisonPredicate sel22 = new
// ComparisonPredicate(ComparisonPredicate.EQUAL_OP,
// new ColumnReference(_stringConv, 2), new
// ValueSpecification(_stringConv, "O"));
BetweenPredicate sel22 = new BetweenPredicate(new ColumnReference(
_dc, 3), true, RANGE2_LOWER, false, RANGE2_UPPER);
Predicate and2 = new AndPredicate(sel21, sel22);
SelectOperator selectionOrders2 = new SelectOperator(and2);
relationOrders2 = new DataSourceComponent("ORDERS2", dataPath
+ "orders" + extension).add(selectionOrders2).add(print2)
.add(projectionLineitem).setOutputPartKey(hashLineitem);
_queryBuilder.add(relationOrders2);
} else {
relationOrders1 = new DataSourceComponent("ORDERS1", dataPath
+ matName1 + extension).add(projectionLineitem)
.setOutputPartKey(hashLineitem);
_queryBuilder.add(relationOrders1);
relationOrders2 = new DataSourceComponent("LINEITEM2", dataPath
+ matName2 + extension).add(projectionLineitem)
.setOutputPartKey(hashLineitem);
_queryBuilder.add(relationOrders2);
}
NumericType keyType = _lc;
ComparisonPredicate comparison = new ComparisonPredicate(
ComparisonPredicate.EQUAL_OP);
int firstKeyProject = 0;
int secondKeyProject = 0;
if (printSelected) {
relationOrders1.setPrintOut(false);
relationOrders2.setPrintOut(false);
} else if (isSrcHistogram) {
_queryBuilder = MyUtilities.addSrcHistogram(relationOrders1,
firstKeyProject, relationOrders2, secondKeyProject,
keyType, comparison, isEWHD2Histogram, isEWHS1Histogram,
conf);
} else if (isOkcanSampling) {
_queryBuilder = MyUtilities.addOkcanSampler(relationOrders1,
relationOrders2, firstKeyProject, secondKeyProject,
_queryBuilder, keyType, comparison, conf);
} else if (isEWHSampling) {
_queryBuilder = MyUtilities.addEWHSampler(relationOrders1,
relationOrders2, firstKeyProject, secondKeyProject,
_queryBuilder, keyType, comparison, conf);
} else {
final int Theta_JoinType = ThetaQueryPlansParameters
.getThetaJoinType(conf);
final ColumnReference colO1 = new ColumnReference(keyType,
firstKeyProject);
final ColumnReference colO2 = new ColumnReference(keyType,
secondKeyProject);
// Addition expr2 = new Addition(colO2, new ValueSpecification(_ic,
// keyOffset));
final ComparisonPredicate O1_O2_comp = new ComparisonPredicate(
ComparisonPredicate.EQUAL_OP, colO1, colO2);
// AggregateCountOperator agg = new AggregateCountOperator(conf);
Component lastJoiner = ThetaJoinComponentFactory
.createThetaJoinOperator(Theta_JoinType, relationOrders1,
relationOrders2, _queryBuilder)
.setJoinPredicate(O1_O2_comp)
.setContentSensitiveThetaJoinWrapper(keyType);
// .addOperator(agg)
// lastJoiner.setPrintOut(false);
DummyComponent dummy = new DummyComponent(lastJoiner, "DUMMY");
_queryBuilder.add(dummy);
}
}
@Override
public QueryBuilder getQueryPlan() {
return _queryBuilder;
}
}