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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.

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/*
 * Copyright 2010 Red Hat, Inc. and/or its affiliates.
 *
 * 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.nurserostering.persistence;

import java.io.IOException;
import java.time.format.DateTimeFormatter;

import org.jdom.Element;
import org.optaplanner.examples.common.persistence.AbstractXmlSolutionExporter;
import org.optaplanner.examples.common.persistence.SolutionConverter;
import org.optaplanner.examples.nurserostering.app.NurseRosteringApp;
import org.optaplanner.examples.nurserostering.domain.NurseRoster;
import org.optaplanner.examples.nurserostering.domain.Shift;
import org.optaplanner.examples.nurserostering.domain.ShiftAssignment;

public class NurseRosteringExporter extends AbstractXmlSolutionExporter {

    public static void main(String[] args) {
        SolutionConverter converter = SolutionConverter.createExportConverter(
                NurseRosteringApp.DATA_DIR_NAME, NurseRoster.class, new NurseRosteringExporter());
        converter.convertAll();
    }

    @Override
    public XmlOutputBuilder createXmlOutputBuilder() {
        return new NurseRosteringOutputBuilder();
    }

    public static class NurseRosteringOutputBuilder extends XmlOutputBuilder {

        private NurseRoster nurseRoster;

        @Override
        public void setSolution(NurseRoster solution) {
            nurseRoster = solution;
        }

        @Override
        public void writeSolution() throws IOException {
            Element solutionElement = new Element("Solution");
            document.setRootElement(solutionElement);

            Element schedulingPeriodIDElement = new Element("SchedulingPeriodID");
            schedulingPeriodIDElement.setText(nurseRoster.getCode());
            solutionElement.addContent(schedulingPeriodIDElement);

            Element competitorElement = new Element("Competitor");
            competitorElement.setText("Geoffrey De Smet with OptaPlanner");
            solutionElement.addContent(competitorElement);

            Element softConstraintsPenaltyElement = new Element("SoftConstraintsPenalty");
            softConstraintsPenaltyElement.setText(Integer.toString(nurseRoster.getScore().getSoftScore()));
            solutionElement.addContent(softConstraintsPenaltyElement);

            for (ShiftAssignment shiftAssignment : nurseRoster.getShiftAssignmentList()) {
                Shift shift = shiftAssignment.getShift();
                if (shift != null) {
                    Element assignmentElement = new Element("Assignment");
                    solutionElement.addContent(assignmentElement);

                    Element dateElement = new Element("Date");
                    dateElement.setText(shift.getShiftDate().getDate().format(DateTimeFormatter.ISO_DATE));
                    assignmentElement.addContent(dateElement);

                    Element employeeElement = new Element("Employee");
                    employeeElement.setText(shiftAssignment.getEmployee().getCode());
                    assignmentElement.addContent(employeeElement);

                    Element shiftTypeElement = new Element("ShiftType");
                    shiftTypeElement.setText(shift.getShiftType().getCode());
                    assignmentElement.addContent(shiftTypeElement);
                }
            }
        }
    }

}