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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.
package org.optaplanner.examples.examination.persistence;
import java.io.IOException;
import java.util.Comparator;
import org.optaplanner.examples.common.persistence.AbstractTxtSolutionExporter;
import org.optaplanner.examples.common.persistence.SolutionConverter;
import org.optaplanner.examples.examination.app.ExaminationApp;
import org.optaplanner.examples.examination.domain.Exam;
import org.optaplanner.examples.examination.domain.Examination;
public class ExaminationExporter extends AbstractTxtSolutionExporter {
private static final String OUTPUT_FILE_SUFFIX = "sln";
public static void main(String[] args) {
SolutionConverter converter = SolutionConverter.createExportConverter(
ExaminationApp.DATA_DIR_NAME, new ExaminationExporter(), new ExaminationSolutionFileIO());
converter.convertAll();
}
@Override
public String getOutputFileSuffix() {
return OUTPUT_FILE_SUFFIX;
}
@Override
public TxtOutputBuilder createTxtOutputBuilder() {
return new ExaminationOutputBuilder();
}
public static class ExaminationOutputBuilder extends TxtOutputBuilder {
@Override
public void writeSolution() throws IOException {
solution.getExamList().sort(Comparator.comparingLong(Exam::getId)); // TODO remove me when obsolete
for (Exam exam : solution.getExamList()) {
bufferedWriter.write(exam.getPeriod().getId() + ", " + exam.getRoom().getId() + "\r\n");
}
}
}
}