/*
* Copyright 2015 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.common.persistence;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.apache.commons.io.FilenameUtils;
import org.optaplanner.core.api.domain.solution.PlanningSolution;
/**
* @param <Solution_> the solution type, the class with the {@link PlanningSolution} annotation
*/
public abstract class AbstractPngSolutionImporter<Solution_> extends AbstractSolutionImporter<Solution_> {
private static final String DEFAULT_INPUT_FILE_SUFFIX = "png";
protected AbstractPngSolutionImporter(SolutionDao<Solution_> solutionDao) {
super(solutionDao);
}
protected AbstractPngSolutionImporter(boolean withoutDao) {
super(withoutDao);
}
@Override
public String getInputFileSuffix() {
return DEFAULT_INPUT_FILE_SUFFIX;
}
public abstract PngInputBuilder<Solution_> createPngInputBuilder();
@Override
public Solution_ readSolution(File inputFile) {
try {
BufferedImage image = ImageIO.read(inputFile);
PngInputBuilder<Solution_> pngInputBuilder = createPngInputBuilder();
pngInputBuilder.setInputFile(inputFile);
pngInputBuilder.setImage(image);
try {
Solution_ solution = pngInputBuilder.readSolution();
logger.info("Imported: {}", inputFile);
return solution;
} catch (IllegalArgumentException | IllegalStateException e) {
throw new IllegalArgumentException("Exception in inputFile (" + inputFile + ")", e);
}
} catch (IOException e) {
throw new IllegalArgumentException("Could not read the file (" + inputFile.getName() + ").", e);
}
}
public static abstract class PngInputBuilder<Solution_> extends InputBuilder {
protected File inputFile;
protected BufferedImage image;
public void setInputFile(File inputFile) {
this.inputFile = inputFile;
}
public void setImage(BufferedImage image) {
this.image = image;
}
public abstract Solution_ readSolution() throws IOException;
// ************************************************************************
// Helper methods
// ************************************************************************
public String getInputId() {
return FilenameUtils.getBaseName(inputFile.getPath());
}
}
}