com.carrotgarden.maven.imgscalr.ImgscalrMojo.java Source code

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Here is the source code for com.carrotgarden.maven.imgscalr.ImgscalrMojo.java

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/**
 * Copyright (C) 2010-2012 Andrei Pozolotin <Andrei.Pozolotin@gmail.com>
 *
 * All rights reserved. Licensed under the OSI BSD License.
 *
 * http://www.opensource.org/licenses/bsd-license.php
 */
package com.carrotgarden.maven.imgscalr;

import java.awt.image.BufferedImage;
import java.io.File;

import javax.imageio.ImageIO;

import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.imgscalr.Scalr;
import org.imgscalr.Scalr.Method;
import org.imgscalr.Scalr.Mode;

/**
 * 
 * @goal scale
 * @phase generate-resources
 */
public class ImgscalrMojo extends AbstractMojo {

    /**
     * @parameter
     * @required
     */
    protected File source;

    /**
     * @parameter
     * @required
     */
    protected File target;

    /**
     * @parameter
     * @required
     */
    protected int width;

    /**
     * @parameter
     * @required
     */
    protected int height;

    /**
     * {@inheritDoc}
     */
    @Override
    public void execute() throws MojoExecutionException, MojoFailureException {

        try {

            getLog().info("imgscalr : source = " + source);
            getLog().info("imgscalr : target = " + target);
            getLog().info("imgscalr : w x h = " + width + " x " + height);

            final BufferedImage source = ImageIO.read(this.source);

            final BufferedImage target = Scalr.resize(source, Method.QUALITY, Mode.AUTOMATIC, width, height);

            final String format = getFileExtension(this.target);

            this.target.getParentFile().mkdirs();

            ImageIO.write(target, format, this.target);

        } catch (final Throwable exception) {
            throw new MojoExecutionException("imgscalr: scale failed", exception);
        }

    }

    protected String getFileExtension(final File file) {

        final String name = file.getName();

        final int pos = name.lastIndexOf('.');

        final String extension = name.substring(pos + 1);

        return extension;

    }

}