DotGeneratorMojo.java

/**
 * Copyright (C) 2009 Original Authors
 *
 * This file is part of Spring ME.
 *
 * Spring ME is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 * Spring ME is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Spring ME; see the file COPYING. If not, write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 *
 * Linking this library statically or dynamically with other modules is
 * making a combined work based on this library. Thus, the terms and
 * conditions of the GNU General Public License cover the whole
 * combination.
 *
 * As a special exception, the copyright holders of this library give you
 * permission to link this library with independent modules to produce an
 * executable, regardless of the license terms of these independent
 * modules, and to copy and distribute the resulting executable under
 * terms of your choice, provided that you also meet, for each linked
 * independent module, the terms and conditions of the license of that
 * module. An independent module is a module which is not derived from or
 * based on this library. If you modify this library, you may extend this
 * exception to your version of the library, but you are not obligated to
 * do so. If you do not wish to do so, delete this exception statement
 * from your version.
 */
package me.springframework.di.maven;

import java.util.ArrayList;
import java.util.List;

import me.springframework.di.Configuration;
import me.springframework.di.gen.dot.DotGenerator;
import me.springframework.di.gen.dot.DotGenerator.StyleCatalog;
import me.springframework.di.gen.factory.GeneratorException;

import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;


/**
 * A Mojo generating a dot file representing the Spring beans.
 * 
 * @author Wilfred Springer (wis)
 * @goal dot
 */
public class DotGeneratorMojo extends AbstractGeneratorMojo {

    /**
     * The styles defined for rendering the diagram.
     * 
     * @parameter
     */
    private List<Style> styles = new ArrayList<Style>();

    @Override
    public void process(Configuration config, BeanFactory factory) throws MojoExecutionException, MojoFailureException {
        try {
            DotGenerator generator = new DotGenerator(new MojoStyleCatalog());
            generator.generate(config, factory.getDotFile());
        } catch (GeneratorException ge) {
            throw new MojoExecutionException("Failed to generate dot output.", ge);
        }
    }

    /**
     * A {@link StyleCatalog} that takes its values from the Mojo configuration,
     * based on regular expressions.
     * 
     */
    private class MojoStyleCatalog implements StyleCatalog {

        /*
         * (non-Javadoc)
         * @see me.springframework.di.gen.DotGenerator.StyleCatalog#getColor(java.lang.String)
         */
        public String getColor(String type) {
            for (Style style : styles) {
                if (type.matches(style.getExpr())) {
                    return style.getColor();
                } else {
                    getLog().debug(type + " does not match " + style.getExpr());
                }
            }
            return "white";
        }

    }

}