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OptaPlanner solves planning problems.
This lightweight, embeddable planning engine implements powerful and scalable algorithms
to optimize business resource scheduling and planning.
This module contains the examples which demonstrate how to use it in a normal Java application.
/*
* 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.optaplanner.examples.manners2009.persistence;
import java.io.IOException;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.optaplanner.core.impl.solution.Solution;
import org.optaplanner.examples.common.persistence.AbstractTxtSolutionImporter;
import org.optaplanner.examples.manners2009.domain.Gender;
import org.optaplanner.examples.manners2009.domain.Guest;
import org.optaplanner.examples.manners2009.domain.Hobby;
import org.optaplanner.examples.manners2009.domain.HobbyPractician;
import org.optaplanner.examples.manners2009.domain.Job;
import org.optaplanner.examples.manners2009.domain.JobType;
import org.optaplanner.examples.manners2009.domain.Manners2009;
import org.optaplanner.examples.manners2009.domain.Seat;
import org.optaplanner.examples.manners2009.domain.SeatDesignation;
import org.optaplanner.examples.manners2009.domain.Table;
public class Manners2009SolutionImporter extends AbstractTxtSolutionImporter {
public static void main(String[] args) {
new Manners2009SolutionImporter().convertAll();
}
public Manners2009SolutionImporter() {
super(new Manners2009Dao());
}
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);
BigInteger possibleSolutionSize = BigInteger.valueOf(manners2009.getGuestList().size()).pow(
manners2009.getSeatDesignationList().size());
String flooredPossibleSolutionSize = "10^" + (possibleSolutionSize.toString().length() - 1);
logger.info("Manners2009 {} has {} jobs, {} guests, {} hobby practicians, {} tables and {} seats"
+ " with a search space of {}.",
getInputId(),
manners2009.getJobList().size(),
manners2009.getGuestList().size(),
manners2009.getHobbyPracticianList().size(),
manners2009.getTableList().size(),
manners2009.getSeatList().size(),
flooredPossibleSolutionSize);
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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