org.optaplanner.benchmark.impl.statistic.common.GraphSupport.java Source code

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Here is the source code for org.optaplanner.benchmark.impl.statistic.common.GraphSupport.java

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/*
 * Copyright 2014 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.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.apache.commons.io.IOUtils;
import org.jfree.chart.JFreeChart;

public class GraphSupport {

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

    private GraphSupport() {
    }

}