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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.pas.persistence;
import java.io.IOException;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.commons.lang.builder.CompareToBuilder;
import org.optaplanner.core.api.domain.solution.Solution;
import org.optaplanner.examples.common.domain.PersistableIdComparator;
import org.optaplanner.examples.common.persistence.AbstractTxtSolutionImporter;
import org.optaplanner.examples.pas.domain.AdmissionPart;
import org.optaplanner.examples.pas.domain.Bed;
import org.optaplanner.examples.pas.domain.BedDesignation;
import org.optaplanner.examples.pas.domain.Department;
import org.optaplanner.examples.pas.domain.DepartmentSpecialism;
import org.optaplanner.examples.pas.domain.Equipment;
import org.optaplanner.examples.pas.domain.Gender;
import org.optaplanner.examples.pas.domain.GenderLimitation;
import org.optaplanner.examples.pas.domain.Night;
import org.optaplanner.examples.pas.domain.Patient;
import org.optaplanner.examples.pas.domain.PatientAdmissionSchedule;
import org.optaplanner.examples.pas.domain.PreferredPatientEquipment;
import org.optaplanner.examples.pas.domain.RequiredPatientEquipment;
import org.optaplanner.examples.pas.domain.Room;
import org.optaplanner.examples.pas.domain.RoomEquipment;
import org.optaplanner.examples.pas.domain.RoomSpecialism;
import org.optaplanner.examples.pas.domain.Specialism;
public class PatientAdmissionScheduleImporter extends AbstractTxtSolutionImporter {
public static void main(String[] args) {
new PatientAdmissionScheduleImporter().convertAll();
}
public PatientAdmissionScheduleImporter() {
super(new PatientAdmissionScheduleDao());
}
public TxtInputBuilder createTxtInputBuilder() {
return new PatientAdmissionScheduleInputBuilder();
}
public static class PatientAdmissionScheduleInputBuilder extends TxtInputBuilder {
private PatientAdmissionSchedule patientAdmissionSchedule;
private int specialismListSize;
private int departmentListSize;
private int equipmentListSize;
private int roomListSize;
private int bedListSize;
private int nightListSize;
private int patientListSize;
private Map idToSpecialismMap = null;
private Map idToDepartmentMap = null;
private Map indexToEquipmentMap = null;
private Map idToRoomMap = null;
private Map indexToNightMap = null;
public Solution readSolution() throws IOException {
patientAdmissionSchedule = new PatientAdmissionSchedule();
patientAdmissionSchedule.setId(0L);
readSizes();
readEmptyLine();
readEmptyLine();
readSpecialismList();
readEmptyLine();
readDepartmentListAndDepartmentSpecialismList();
readEmptyLine();
readEquipmentList();
readEmptyLine();
readRoomListAndRoomSpecialismListAndRoomEquipmentList();
readEmptyLine();
readBedList();
readEmptyLine();
generateNightList();
readPatientListAndAdmissionPartListAndRequiredPatientEquipmentListAndPreferredPatientEquipmentList();
readEmptyLine();
readConstantLine("END.");
createBedDesignationList();
// TODO not all nights are planned, only the "planning horizon" nights are planned
BigInteger possibleSolutionSize = BigInteger.valueOf(patientAdmissionSchedule.getBedList().size()).pow(
patientAdmissionSchedule.getAdmissionPartList().size());
logger.info("PatientAdmissionSchedule {} has {} specialisms, {} equipments, {} departments, {} rooms, "
+ "{} beds, {} nights, {} patients and {} admissions with a search space of {}.",
getInputId(),
patientAdmissionSchedule.getSpecialismList().size(),
patientAdmissionSchedule.getEquipmentList().size(),
patientAdmissionSchedule.getDepartmentList().size(),
patientAdmissionSchedule.getRoomList().size(),
patientAdmissionSchedule.getBedList().size(),
patientAdmissionSchedule.getNightList().size(),
patientAdmissionSchedule.getPatientList().size(),
patientAdmissionSchedule.getAdmissionPartList().size(),
getFlooredPossibleSolutionSize(possibleSolutionSize));
return patientAdmissionSchedule;
}
private void readSizes() throws IOException {
readConstantLine("ARTICLE BENCHMARK DATA SET");
roomListSize = readIntegerValue("Rooms:");
equipmentListSize = readIntegerValue("Roomproperties:");
bedListSize = readIntegerValue("Beds:");
departmentListSize = readIntegerValue("Departments:");
specialismListSize = readIntegerValue("Specialisms:");
patientListSize = readIntegerValue("Patients:");
nightListSize = readIntegerValue("Planning horizon:");
}
private void readSpecialismList() throws IOException {
readConstantLine("SPECIALISMS:");
List specialismList = new ArrayList(specialismListSize);
idToSpecialismMap = new HashMap(specialismListSize);
for (int i = 0; i < specialismListSize; i++) {
String line = bufferedReader.readLine();
String[] lineTokens = splitBySpace(line, 2);
Specialism specialism = new Specialism();
specialism.setId(Long.parseLong(lineTokens[0]));
specialism.setName(lineTokens[1]);
specialismList.add(specialism);
idToSpecialismMap.put(specialism.getId(), specialism);
}
patientAdmissionSchedule.setSpecialismList(specialismList);
}
private void readDepartmentListAndDepartmentSpecialismList() throws IOException {
readConstantLine("DEPARTMENTS:");
List departmentList = new ArrayList(departmentListSize);
idToDepartmentMap = new HashMap(departmentListSize);
List departmentSpecialismList = new ArrayList(
departmentListSize * 5);
long departmentSpecialismId = 0L;
for (int i = 0; i < departmentListSize; i++) {
String line = bufferedReader.readLine();
String[] lineTokens = splitByPipelineAndTrim(line, 2);
String[] departmentTokens = splitBySpace(lineTokens[0], 4);
Department department = new Department();
department.setId(Long.parseLong(departmentTokens[0]));
department.setName(departmentTokens[1]);
department.setRoomList(new ArrayList());
int minimumAge = Integer.parseInt(departmentTokens[2]);
if (minimumAge != 0) {
department.setMinimumAge(Integer.valueOf(minimumAge));
}
int maximumAge = Integer.parseInt(departmentTokens[3]);
if (maximumAge != 0) {
department.setMaximumAge(Integer.valueOf(maximumAge));
}
departmentList.add(department);
idToDepartmentMap.put(department.getId(), department);
String[] departmentSpecialismTokens = splitBySpace(lineTokens[1]);
if (departmentSpecialismTokens.length % 2 != 0) {
throw new IllegalArgumentException("Read line (" + line
+ ") is expected to contain even number of tokens (" + departmentSpecialismTokens.length
+ ") after 1st pipeline (|) separated by a space ( ).");
}
for (int j = 0; j < departmentSpecialismTokens.length; j += 2) {
long specialismId = Long.parseLong(departmentSpecialismTokens[j + 1]);
if (specialismId != 0) {
DepartmentSpecialism departmentSpecialism = new DepartmentSpecialism();
departmentSpecialism.setId(departmentSpecialismId);
departmentSpecialism.setDepartment(department);
departmentSpecialism.setPriority(Integer.parseInt(departmentSpecialismTokens[j]));
Specialism specialism = idToSpecialismMap.get(specialismId);
if (specialism == null) {
throw new IllegalArgumentException("Read line (" + line
+ ") has a non existing specialismId (" + specialismId + ").");
}
departmentSpecialism.setSpecialism(specialism);
departmentSpecialismList.add(departmentSpecialism);
departmentSpecialismId++;
}
}
}
Collections.sort(departmentList, new PersistableIdComparator());
patientAdmissionSchedule.setDepartmentList(departmentList);
patientAdmissionSchedule.setDepartmentSpecialismList(departmentSpecialismList);
}
private void readEquipmentList() throws IOException {
readConstantLine("ROOMPROPERTIES:");
List equipmentList = new ArrayList(equipmentListSize);
indexToEquipmentMap = new HashMap(equipmentListSize);
for (int i = 0; i < equipmentListSize; i++) {
String line = bufferedReader.readLine();
String[] lineTokens = splitBySpace(line, 2);
Equipment equipment = new Equipment();
equipment.setId(Long.parseLong(lineTokens[0]));
equipment.setName(lineTokens[1]);
equipmentList.add(equipment);
indexToEquipmentMap.put(i, equipment);
}
patientAdmissionSchedule.setEquipmentList(equipmentList);
}
private void readRoomListAndRoomSpecialismListAndRoomEquipmentList() throws IOException {
readConstantLine("ROOMS:");
List roomList = new ArrayList(roomListSize);
idToRoomMap = new HashMap(roomListSize);
List roomSpecialismList = new ArrayList(roomListSize * 5);
List roomEquipmentList = new ArrayList(roomListSize * 2);
long roomSpecialismId = 0L;
long roomEquipmentId = 0L;
for (int i = 0; i < roomListSize; i++) {
String line = bufferedReader.readLine();
String[] lineTokens = splitByPipelineAndTrim(line, 6);
String[] roomTokens = splitBySpace(lineTokens[0], 2);
Room room = new Room();
room.setId(Long.parseLong(roomTokens[0]));
room.setName(roomTokens[1]);
room.setCapacity(Integer.parseInt(lineTokens[1]));
Department department = idToDepartmentMap.get(
Long.parseLong(lineTokens[2]));
room.setDepartment(department);
room.setGenderLimitation(GenderLimitation.valueOfCode(lineTokens[3]));
room.setBedList(new ArrayList());
roomList.add(room);
idToRoomMap.put(room.getId(), room);
department.getRoomList().add(room);
String[] roomSpecialismTokens = splitBySpace(lineTokens[4]);
if (roomSpecialismTokens.length % 2 != 0) {
throw new IllegalArgumentException("Read line (" + line
+ ") is expected to contain even number of tokens (" + roomSpecialismTokens.length
+ ") after 4th pipeline (|) separated by a space ( ).");
}
List roomSpecialismListOfRoom = new ArrayList(roomSpecialismTokens.length / 2);
for (int j = 0; j < roomSpecialismTokens.length; j += 2) {
int priority = Integer.parseInt(roomSpecialismTokens[j]);
long specialismId = Long.parseLong(roomSpecialismTokens[j + 1]);
if (specialismId != 0) {
RoomSpecialism roomSpecialism = new RoomSpecialism();
roomSpecialism.setId(roomSpecialismId);
roomSpecialism.setRoom(room);
Specialism specialism = idToSpecialismMap.get(specialismId);
if (specialism == null) {
throw new IllegalArgumentException("Read line (" + line
+ ") has a non existing specialismId (" + specialismId + ").");
}
roomSpecialism.setSpecialism(specialism);
roomSpecialism.setPriority(priority);
roomSpecialismListOfRoom.add(roomSpecialism);
roomSpecialismList.add(roomSpecialism);
roomSpecialismId++;
}
}
room.setRoomSpecialismList(roomSpecialismListOfRoom);
List roomEquipmentListOfRoom = new ArrayList(equipmentListSize);
String[] roomEquipmentTokens = splitBySpace(lineTokens[5]);
if (roomEquipmentTokens.length != equipmentListSize) {
throw new IllegalArgumentException("Read line (" + line
+ ") is expected to contain equal number of tokens (" + roomEquipmentTokens.length
+ ") as equipmentListSize (" + equipmentListSize + ") after 5th pipeline (|).");
}
for (int j = 0; j < roomEquipmentTokens.length; j++) {
int hasEquipment = Integer.parseInt(roomEquipmentTokens[j]);
if (hasEquipment == 1) {
RoomEquipment roomEquipment = new RoomEquipment();
roomEquipment.setId(roomEquipmentId);
roomEquipment.setRoom(room);
roomEquipment.setEquipment(indexToEquipmentMap.get(j));
roomEquipmentListOfRoom.add(roomEquipment);
roomEquipmentList.add(roomEquipment);
roomEquipmentId++;
} else if (hasEquipment != 0) {
throw new IllegalArgumentException("Read line (" + line
+ ") is expected to have 0 or 1 hasEquipment (" + hasEquipment + ").");
}
}
room.setRoomEquipmentList(roomEquipmentListOfRoom);
}
Collections.sort(roomList, new Comparator() {
public int compare(Room a, Room b) {
return new CompareToBuilder()
.append(a.getDepartment().getId(), b.getDepartment().getId())
.append(a.getId(), b.getId())
.toComparison();
}
});
patientAdmissionSchedule.setRoomList(roomList);
patientAdmissionSchedule.setRoomSpecialismList(roomSpecialismList);
patientAdmissionSchedule.setRoomEquipmentList(roomEquipmentList);
}
private void readBedList() throws IOException {
readConstantLine("BEDS:");
List bedList = new ArrayList(bedListSize);
Map roomToLastIndexInRoomMap = new HashMap(roomListSize);
for (int i = 0; i < bedListSize; i++) {
String line = bufferedReader.readLine();
String[] lineTokens = splitBySpace(line, 2);
Bed bed = new Bed();
bed.setId(Long.parseLong(lineTokens[0]));
Room room = idToRoomMap.get(Long.parseLong(lineTokens[1]));
bed.setRoom(room);
Integer indexInRoom = roomToLastIndexInRoomMap.get(room);
if (indexInRoom == null) {
indexInRoom = 0;
} else {
indexInRoom++;
}
bed.setIndexInRoom(indexInRoom);
roomToLastIndexInRoomMap.put(room, indexInRoom);
bedList.add(bed);
room.getBedList().add(bed);
}
Collections.sort(bedList, new Comparator() {
public int compare(Bed a, Bed b) {
return new CompareToBuilder()
.append(a.getRoom().getDepartment().getId(), b.getRoom().getDepartment().getId())
.append(a.getRoom().getId(), b.getRoom().getId())
.append(a.getIndexInRoom(), b.getIndexInRoom())
.append(a.getId(), b.getId())
.toComparison();
}
});
patientAdmissionSchedule.setBedList(bedList);
}
private void generateNightList() {
List nightList = new ArrayList(nightListSize);
indexToNightMap = new HashMap(nightListSize);
long nightId = 0L;
for (int i = 0; i < nightListSize; i++) {
Night night = new Night();
night.setId(nightId);
night.setIndex(i);
nightList.add(night);
indexToNightMap.put(i, night);
nightId++;
}
patientAdmissionSchedule.setNightList(nightList);
}
private void readPatientListAndAdmissionPartListAndRequiredPatientEquipmentListAndPreferredPatientEquipmentList() throws IOException {
readConstantLine("PATIENTS:");
List patientList = new ArrayList(patientListSize);
List admissionPartList = new ArrayList(patientListSize);
List requiredPatientEquipmentList = new ArrayList(patientListSize * equipmentListSize);
List preferredPatientEquipmentList = new ArrayList(patientListSize * equipmentListSize);
long admissionPartId = 0L;
long requiredPatientEquipmentId = 0L;
long preferredPatientEquipmentId = 0L;
for (int i = 0; i < patientListSize; i++) {
String line = bufferedReader.readLine();
String[] lineTokens = splitByPipelineAndTrim(line, 6);
String[] nightTokens = splitBySpace(lineTokens[1], 2);
int firstNightIndex = Integer.parseInt(nightTokens[0]);
int lastNightIndex = Integer.parseInt(nightTokens[1]);
int patientNightListSize = lastNightIndex - firstNightIndex;
// A patient with no nights in the planning horizon or no nights at all is ignored
if (firstNightIndex >= nightListSize || patientNightListSize == 0) {
continue;
}
String[] patientTokens = splitBySpace(lineTokens[0], 4);
Patient patient = new Patient();
patient.setId(Long.parseLong(patientTokens[0]));
patient.setName(patientTokens[1]);
patient.setAge(Integer.parseInt(patientTokens[2]));
patient.setGender(Gender.valueOfCode(patientTokens[3]));
int preferredMaximumRoomCapacity = Integer.parseInt(lineTokens[3]);
patient.setPreferredMaximumRoomCapacity(preferredMaximumRoomCapacity == 0
? null : preferredMaximumRoomCapacity);
patientList.add(patient);
String[] admissionPartTokens = splitBySpace(lineTokens[2]);
int patientAdmissionPartListSize = Integer.parseInt(admissionPartTokens[0]);
if (admissionPartTokens.length != ((patientAdmissionPartListSize * 2) + 1)) {
throw new IllegalArgumentException("Read line (" + line
+ ") is expected to contain " + ((patientAdmissionPartListSize * 2) + 1)
+ " number of tokens after 2th pipeline (|).");
}
int nextFirstNightIndex = firstNightIndex;
for (int j = 1; j < admissionPartTokens.length; j += 2) {
long specialismId = Long.parseLong(admissionPartTokens[j]);
int admissionPartNightListSize = Integer.parseInt(admissionPartTokens[j + 1]);
if (nextFirstNightIndex >= nightListSize || admissionPartNightListSize == 0) {
nextFirstNightIndex += admissionPartNightListSize;
continue;
}
AdmissionPart admissionPart = new AdmissionPart();
admissionPart.setId(admissionPartId);
admissionPart.setPatient(patient);
Specialism specialism = (specialismId == 0) ? null : idToSpecialismMap.get(specialismId);
if (specialism == null) {
throw new IllegalArgumentException("Read line (" + line
+ ") has a non existing specialismId (" + specialismId + ").");
}
admissionPart.setSpecialism(specialism);
int admissionPartFirstNightIndex = nextFirstNightIndex;
Night admissionPartFirstNight = indexToNightMap.get(admissionPartFirstNightIndex);
if (admissionPartFirstNight == null) {
throw new IllegalStateException(
"The admissionPartFirstNight was not found for admissionPartFirstNightIndex("
+ admissionPartFirstNightIndex + ").");
}
admissionPart.setFirstNight(admissionPartFirstNight);
int admissionPartLastNightIndex = nextFirstNightIndex + admissionPartNightListSize - 1;
// TODO Instead of ensureEnoughNights(lastNightIndex);
// the official score function ignores any broken constraints after the planning horizon
if (admissionPartLastNightIndex >= nightListSize) {
admissionPartLastNightIndex = nightListSize - 1;
}
Night admissionPartLastNight = indexToNightMap.get(admissionPartLastNightIndex);
if (admissionPartLastNight == null) {
throw new IllegalStateException(
"The admissionPartLastNight was not found for admissionPartLastNightIndex("
+ admissionPartLastNightIndex + ").");
}
admissionPart.setLastNight(admissionPartLastNight);
admissionPartList.add(admissionPart);
admissionPartId++;
nextFirstNightIndex += admissionPartNightListSize;
}
int admissionPartNightListSizeSum = nextFirstNightIndex - firstNightIndex;
if (patientNightListSize != admissionPartNightListSizeSum) {
throw new IllegalArgumentException("Read line (" + line
+ ") has patientNightListSize (" + patientNightListSize
+ ") different from admissionPartNightListSizeSum(" + admissionPartNightListSizeSum + ")");
}
String[] requiredPatientEquipmentTokens = splitBySpace(lineTokens[4]);
if (requiredPatientEquipmentTokens.length != equipmentListSize) {
throw new IllegalArgumentException("Read line (" + line
+ ") is expected to contain equal number of tokens ("
+ requiredPatientEquipmentTokens.length
+ ") as equipmentListSize (" + equipmentListSize + ") after 4th pipeline (|).");
}
List requiredPatientEquipmentOfPatientList
= new ArrayList(equipmentListSize);
for (int j = 0; j < requiredPatientEquipmentTokens.length; j++) {
int hasEquipment = Integer.parseInt(requiredPatientEquipmentTokens[j]);
if (hasEquipment == 1) {
RequiredPatientEquipment requiredPatientEquipment = new RequiredPatientEquipment();
requiredPatientEquipment.setId(requiredPatientEquipmentId);
requiredPatientEquipment.setPatient(patient);
requiredPatientEquipment.setEquipment(indexToEquipmentMap.get(j));
requiredPatientEquipmentOfPatientList.add(requiredPatientEquipment);
requiredPatientEquipmentList.add(requiredPatientEquipment);
requiredPatientEquipmentId++;
} else if (hasEquipment != 0) {
throw new IllegalArgumentException("Read line (" + line
+ ") is expected to have 0 or 1 hasEquipment (" + hasEquipment + ").");
}
}
patient.setRequiredPatientEquipmentList(requiredPatientEquipmentOfPatientList);
String[] preferredPatientEquipmentTokens = splitBySpace(lineTokens[5]);
if (preferredPatientEquipmentTokens.length != equipmentListSize) {
throw new IllegalArgumentException("Read line (" + line
+ ") is expected to contain equal number of tokens ("
+ preferredPatientEquipmentTokens.length
+ ") as equipmentListSize (" + equipmentListSize + ") after 5th pipeline (|).");
}
List preferredPatientEquipmentOfPatientList
= new ArrayList(equipmentListSize);
for (int j = 0; j < preferredPatientEquipmentTokens.length; j++) {
int hasEquipment = Integer.parseInt(preferredPatientEquipmentTokens[j]);
if (hasEquipment == 1) {
boolean alreadyRequired = (Integer.parseInt(requiredPatientEquipmentTokens[j]) == 1);
// Official spec: if equipment is required
// then a duplicate preffered constraint should be ignored
if (!alreadyRequired) {
PreferredPatientEquipment preferredPatientEquipment = new PreferredPatientEquipment();
preferredPatientEquipment.setId(preferredPatientEquipmentId);
preferredPatientEquipment.setPatient(patient);
preferredPatientEquipment.setEquipment(indexToEquipmentMap.get(j));
preferredPatientEquipmentOfPatientList.add(preferredPatientEquipment);
preferredPatientEquipmentList.add(preferredPatientEquipment);
preferredPatientEquipmentId++;
}
} else if (hasEquipment != 0) {
throw new IllegalArgumentException("Read line (" + line
+ ") is expected to have 0 or 1 hasEquipment (" + hasEquipment + ").");
}
}
patient.setPreferredPatientEquipmentList(preferredPatientEquipmentOfPatientList);
}
patientAdmissionSchedule.setPatientList(patientList);
patientAdmissionSchedule.setAdmissionPartList(admissionPartList);
patientAdmissionSchedule.setRequiredPatientEquipmentList(requiredPatientEquipmentList);
patientAdmissionSchedule.setPreferredPatientEquipmentList(preferredPatientEquipmentList);
}
// /**
// * hack to make sure there are enough nights
// * @param lastNightIndex >= 0
// */
// private void ensureEnoughNights(int lastNightIndex) {
// List nightList = patientAdmissionSchedule.getNightList();
// if (lastNightIndex >= nightList.size()) {
// long nightId = nightList.size();
// for (int j = nightList.size(); j <= lastNightIndex; j++) {
// Night night = new Night();
// night.setId(nightId);
// night.setIndex(j);
// nightList.add(night);
// indexToNightMap.put(j, night);
// nightId++;
// }
// }
// }
private void createBedDesignationList() {
List admissionPartList = patientAdmissionSchedule.getAdmissionPartList();
List bedDesignationList = new ArrayList(admissionPartList.size());
long id = 0L;
for (AdmissionPart admissionPart : admissionPartList) {
BedDesignation bedDesignation = new BedDesignation();
bedDesignation.setId(id);
id++;
bedDesignation.setAdmissionPart(admissionPart);
// Notice that we leave the PlanningVariable properties on null
bedDesignationList.add(bedDesignation);
}
patientAdmissionSchedule.setBedDesignationList(bedDesignationList);
}
}
}