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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.examination.persistence;
import java.io.IOException;
import java.util.Collections;
import org.drools.planner.examples.common.domain.PersistableIdComparator;
import org.drools.planner.examples.common.persistence.AbstractTxtSolutionExporter;
import org.drools.planner.examples.examination.domain.Exam;
import org.drools.planner.examples.examination.domain.Examination;
import org.drools.planner.core.solution.Solution;
public class ExaminationSolutionExporter extends AbstractTxtSolutionExporter {
private static final String OUTPUT_FILE_SUFFIX = ".sln";
public static void main(String[] args) {
new ExaminationSolutionExporter().convertAll();
}
public ExaminationSolutionExporter() {
super(new ExaminationDaoImpl());
}
@Override
protected String getOutputFileSuffix() {
return OUTPUT_FILE_SUFFIX;
}
public TxtOutputBuilder createTxtOutputBuilder() {
return new ExaminationOutputBuilder();
}
public class ExaminationOutputBuilder extends TxtOutputBuilder {
private Examination examination;
public void setSolution(Solution solution) {
examination = (Examination) solution;
}
public void writeSolution() throws IOException {
Collections.sort(examination.getExamList(), new PersistableIdComparator()); // TODO remove me when obsolete
for (Exam exam : examination.getExamList()) {
bufferedWriter.write(exam.getPeriod().getId() + ", " + exam.getRoom().getId() + "\r\n");
}
}
}
}