org.optaplanner.benchmark.impl.statistic.common.GraphSupport Maven / Gradle / Ivy

/*
 * Copyright 2014 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.benchmark.impl.statistic.common;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

import javax.imageio.ImageIO;

import org.jfree.chart.JFreeChart;

public class GraphSupport {

    public static void writeChartToImageFile(JFreeChart chart, File chartFile) {
        BufferedImage chartImage = chart.createBufferedImage(1024, 768);
        try (OutputStream out = new FileOutputStream(chartFile)) {
            ImageIO.write(chartImage, "png", out);
        } catch (IOException e) {
            throw new IllegalArgumentException("Failed writing chartFile (" + chartFile + ").", e);
        }
    }

    private GraphSupport() {
    }

}