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Drools Planner optimizes automated planning by combining metaheuristic search algorithms with rule
engine powered score calculation. This is the drools-planner-examples module which contains examples on how to use
Drools Planner.
/*
* Copyright 2010 JBoss Inc
*
* 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 org.drools.planner.examples.manners2009.persistence;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.drools.planner.core.solution.Solution;
import org.drools.planner.examples.common.persistence.AbstractTxtSolutionImporter;
import org.drools.planner.examples.manners2009.domain.Gender;
import org.drools.planner.examples.manners2009.domain.Guest;
import org.drools.planner.examples.manners2009.domain.Hobby;
import org.drools.planner.examples.manners2009.domain.HobbyPractician;
import org.drools.planner.examples.manners2009.domain.Job;
import org.drools.planner.examples.manners2009.domain.JobType;
import org.drools.planner.examples.manners2009.domain.Manners2009;
import org.drools.planner.examples.manners2009.domain.Seat;
import org.drools.planner.examples.manners2009.domain.SeatDesignation;
import org.drools.planner.examples.manners2009.domain.Table;
public class Manners2009SolutionImporter extends AbstractTxtSolutionImporter {
public static void main(String[] args) {
new Manners2009SolutionImporter().convertAll();
}
public Manners2009SolutionImporter() {
super(new Manners2009DaoImpl());
}
public TxtInputBuilder createTxtInputBuilder() {
return new Manners2009InputBuilder();
}
public class Manners2009InputBuilder extends TxtInputBuilder {
public Solution readSolution() throws IOException {
Manners2009 manners2009 = new Manners2009();
manners2009.setId(0L);
readTableListAndSeatList(manners2009);
readJobListGuestListAndHobbyPracticianList(manners2009);
createSeatDesignationList(manners2009);
logger.info("Manners2009 with {} jobs, {} guests, {} hobby practicians, {} tables and {} seats.",
new Object[]{manners2009.getJobList().size(),
manners2009.getGuestList().size(),
manners2009.getHobbyPracticianList().size(),
manners2009.getTableList().size(),
manners2009.getSeatList().size()});
return manners2009;
}
private void readTableListAndSeatList(Manners2009 manners2009)
throws IOException {
int tableListSize = readIntegerValue("Tables:");
int seatsPerTable = readIntegerValue("SeatsPerTable:");
List tableList = new ArrayList(tableListSize);
List seatList = new ArrayList(tableListSize * seatsPerTable);
for (int i = 0; i < tableListSize; i++) {
Table table = new Table();
table.setId((long) i);
table.setTableIndex(i);
List tableSeatList = new ArrayList(seatsPerTable);
Seat firstSeat = null;
Seat previousSeat = null;
for (int j = 0; j < seatsPerTable; j++) {
Seat seat = new Seat();
seat.setId((long) ((i * seatsPerTable) + j));
seat.setTable(table);
seat.setSeatIndexInTable(j);
if (previousSeat != null) {
seat.setLeftSeat(previousSeat);
previousSeat.setRightSeat(seat);
} else {
firstSeat = seat;
}
tableSeatList.add(seat);
seatList.add(seat);
previousSeat = seat;
}
firstSeat.setLeftSeat(previousSeat);
previousSeat.setRightSeat(firstSeat);
table.setSeatList(tableSeatList);
tableList.add(table);
}
manners2009.setTableList(tableList);
manners2009.setSeatList(seatList);
}
private void readJobListGuestListAndHobbyPracticianList(Manners2009 manners2009)
throws IOException {
readConstantLine("Num,Profession,SubProf,Gender,Spt1,Spt2,Spt3");
readConstantLine("-------------------------------------------");
int guestSize = manners2009.getSeatList().size();
List guestList = new ArrayList(guestSize);
List hobbyPracticianList = new ArrayList(guestSize * 3);
Map jobMap = new HashMap(JobType.values().length * 5);
int jobNextId = 0;
int hobbyPracticianJobId = 0;
for (int i = 0; i < guestSize; i++) {
Guest guest = new Guest();
guest.setId((long) i);
String line = bufferedReader.readLine();
String[] lineTokens = line.split("\\,");
if (lineTokens.length < 5) {
throw new IllegalArgumentException("Read line (" + line
+ ") is expected to contain at least 5 tokens.");
}
guest.setCode(lineTokens[0].trim());
JobType jobType = JobType.valueOfCode(lineTokens[1].trim());
String jobName = lineTokens[2].trim();
String jobMapKey = jobType + "/" + jobName;
Job job = jobMap.get(jobMapKey);
if (job == null) {
job = new Job();
job.setId((long) jobNextId);
jobNextId++;
job.setJobType(jobType);
job.setName(jobName);
jobMap.put(jobMapKey, job);
}
guest.setJob(job);
guest.setGender(Gender.valueOfCode(lineTokens[3].trim()));
List hobbyPracticianOfGuestList = new ArrayList(lineTokens.length - 4);
for (int j = 4; j < lineTokens.length; j++) {
HobbyPractician hobbyPractician = new HobbyPractician();
hobbyPractician.setId((long) hobbyPracticianJobId);
hobbyPracticianJobId++;
hobbyPractician.setGuest(guest);
hobbyPractician.setHobby(Hobby.valueOfCode(lineTokens[j].trim()));
hobbyPracticianOfGuestList.add(hobbyPractician);
hobbyPracticianList.add(hobbyPractician);
}
guest.setHobbyPracticianList(hobbyPracticianOfGuestList);
guestList.add(guest);
}
manners2009.setJobList(new ArrayList(jobMap.values()));
manners2009.setGuestList(guestList);
manners2009.setHobbyPracticianList(hobbyPracticianList);
}
private void createSeatDesignationList(Manners2009 manners2009) {
List guestList = manners2009.getGuestList();
List seatDesignationList = new ArrayList(guestList.size());
long id = 0L;
for (Guest guest : guestList) {
SeatDesignation seatDesignation = new SeatDesignation();
seatDesignation.setId(id);
id++;
seatDesignation.setGuest(guest);
// Notice that we leave the PlanningVariable properties on null
seatDesignationList.add(seatDesignation);
}
manners2009.setSeatDesignationList(seatDesignationList);
}
}
}
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