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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.common.persistence;
import java.io.File;
import java.io.IOException;
import java.io.BufferedWriter;
import java.io.FileWriter;
import org.apache.commons.io.IOUtils;
import org.drools.planner.core.solution.Solution;
public abstract class AbstractTxtSolutionExporter extends AbstractSolutionExporter {
protected static final String DEFAULT_OUTPUT_FILE_SUFFIX = ".txt";
protected AbstractTxtSolutionExporter(SolutionDao solutionDao) {
super(solutionDao);
}
protected String getOutputFileSuffix() {
return DEFAULT_OUTPUT_FILE_SUFFIX;
}
public abstract TxtOutputBuilder createTxtOutputBuilder();
public void writeSolution(Solution solution, File outputFile) {
BufferedWriter bufferedWriter = null;
try {
bufferedWriter = new BufferedWriter(new FileWriter(outputFile));
TxtOutputBuilder txtOutputBuilder = createTxtOutputBuilder();
txtOutputBuilder.setBufferedWriter(bufferedWriter);
txtOutputBuilder.setSolution(solution);
txtOutputBuilder.writeSolution();
} catch (IOException e) {
throw new IllegalArgumentException("Could not write the file (" + outputFile.getName() + ").", e);
} finally {
IOUtils.closeQuietly(bufferedWriter);
}
}
public abstract class TxtOutputBuilder {
protected BufferedWriter bufferedWriter;
public void setBufferedWriter(BufferedWriter bufferedWriter) {
this.bufferedWriter = bufferedWriter;
}
public abstract void setSolution(Solution solution);
public abstract void writeSolution() throws IOException;
// ************************************************************************
// Helper methods
// ************************************************************************
}
}