TPCH5_R_N_S_LPlan.java

/*
 * 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.Calendar;
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.components.EquiJoinComponent;
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.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;

public class TPCH5_R_N_S_LPlan extends QueryPlan {
    private static void computeDates() {
	// date2 = date1 + 1 year
	String date1Str = "1994-01-01";
	int interval = 1;
	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
    }

    private static Logger LOG = Logger.getLogger(TPCH5_R_N_S_LPlan.class);

    private static final IntegerType _ic = new IntegerType();
    private static final Type<Date> _dc = new DateType();
    private static final Type<String> _sc = new StringType();

    private static final NumericType<Double> _doubleConv = new DoubleType();

    private QueryBuilder _queryBuilder = new QueryBuilder();
    // query variables
    private static Date _date1, _date2;

    // private static final String REGION_NAME = "ASIA";
    private static final String REGION_NAME = "AMERICA";

    public TPCH5_R_N_S_LPlan(String dataPath, String extension, Map conf) {
	computeDates();

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

	SelectOperator selectionRegion = new SelectOperator(
		new ComparisonPredicate(new ColumnReference(_sc, 1),
			new ValueSpecification(_sc, REGION_NAME)));

	ProjectOperator projectionRegion = new ProjectOperator(new int[] { 0 });

	DataSourceComponent relationRegion = new DataSourceComponent("REGION",
		dataPath + "region" + extension).setOutputPartKey(hashRegion)
		.add(selectionRegion).add(projectionRegion);
	_queryBuilder.add(relationRegion);

	// -------------------------------------------------------------------------------------
	List<Integer> hashNation = Arrays.asList(2);

	ProjectOperator projectionNation = new ProjectOperator(new int[] { 0,
		1, 2 });

	DataSourceComponent relationNation = new DataSourceComponent("NATION",
		dataPath + "nation" + extension).setOutputPartKey(hashNation)
		.add(projectionNation);
	_queryBuilder.add(relationNation);

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

	ProjectOperator projectionRN = new ProjectOperator(new int[] { 1, 2 });

	ColumnReference colR = new ColumnReference(_ic, 0);
	ColumnReference colN = new ColumnReference(_ic, 2);
	ComparisonPredicate R_N_pred = new ComparisonPredicate(
		ComparisonPredicate.EQUAL_OP, colR, colN);

	EquiJoinComponent R_Njoin = new EquiJoinComponent(relationRegion,
		relationNation).setOutputPartKey(hashRN)
		.setJoinPredicate(R_N_pred).add(projectionRN);
	_queryBuilder.add(R_Njoin);

	// -------------------------------------------------------------------------------------
	List<Integer> hashSupplier = Arrays.asList(1);

	ProjectOperator projectionSupplier = new ProjectOperator(new int[] { 0,
		3 });

	DataSourceComponent relationSupplier = new DataSourceComponent(
		"SUPPLIER", dataPath + "supplier" + extension)
		.setOutputPartKey(hashSupplier).add(projectionSupplier);
	_queryBuilder.add(relationSupplier);

	// -------------------------------------------------------------------------------------
	List<Integer> hashRNS = Arrays.asList(2);

	ProjectOperator projectionRNS = new ProjectOperator(
		new int[] { 0, 1, 2 });

	ColumnReference colRN = new ColumnReference(_ic, 0);
	ColumnReference colS = new ColumnReference(_ic, 1);
	ComparisonPredicate R_N_S_pred = new ComparisonPredicate(
		ComparisonPredicate.EQUAL_OP, colRN, colS);

	EquiJoinComponent R_N_Sjoin = new EquiJoinComponent(R_Njoin,
		relationSupplier).setOutputPartKey(hashRNS)
		.setJoinPredicate(R_N_S_pred).add(projectionRNS);
	_queryBuilder.add(R_N_Sjoin);

	// -------------------------------------------------------------------------------------
	List<Integer> hashLineitem = Arrays.asList(1);

	ProjectOperator projectionLineitem = new ProjectOperator(new int[] { 0,
		2, 5, 6 });

	DataSourceComponent relationLineitem = new DataSourceComponent(
		"LINEITEM", dataPath + "lineitem" + extension)
		.setOutputPartKey(hashLineitem).add(projectionLineitem);
	_queryBuilder.add(relationLineitem);

	// -------------------------------------------------------------------------------------
	/*
	 * List<Integer> hashRNSL = Arrays.asList(0, 2);
	 * 
	 * ProjectOperator projectionRNSL = new ProjectOperator(new int[]{0, 1,
	 * 3, 4, 5});
	 * 
	 * // AggregateCountOperator agg= new AggregateCountOperator(conf);
	 * 
	 * EquiJoinComponent R_N_S_Ljoin = new EquiJoinComponent( R_N_Sjoin,
	 * relationLineitem, _queryPlan).setHashIndexes(hashRNSL)
	 * .addOperator(projectionRNSL) // .addOperator(agg) ;
	 * R_N_S_Ljoin.setPrintOut(false);
	 */

	List<Integer> hashRNSL = Arrays.asList(0, 2);

	ColumnReference colR_N_S = new ColumnReference(_ic, 2);
	ColumnReference colL = new ColumnReference(_ic, 1);
	ComparisonPredicate R_N_S_L_pred = new ComparisonPredicate(
		ComparisonPredicate.EQUAL_OP, colR_N_S, colL);

	ProjectOperator projectionRNSL = new ProjectOperator(new int[] { 0, 1,
		3, 5, 6 });

	EquiJoinComponent R_N_S_Ljoin = new EquiJoinComponent(R_N_Sjoin,
		relationLineitem).setOutputPartKey(hashRNSL)
		.add(projectionRNSL).setJoinPredicate(R_N_S_L_pred);
	_queryBuilder.add(R_N_S_Ljoin);
	R_N_S_Ljoin.setPrintOut(false);

	// -------------------------------------------------------------------------------------
    }

    @Override
    public QueryBuilder getQueryPlan() {
	return _queryBuilder;
    }
}