MorphLoaderGroovy.java

/*
Mjdj MIDI Morph - an extensible MIDI processor and translator.
Copyright (C) 2010 Confusionists, LLC (www.confusionists.com)

This program 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 3 of the License, or (at your option) any later version. This program 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 this program. If not, see <http://www.gnu.org/licenses/>. 

You may contact the author at mjdj_midi_morph [at] confusionists.com
*/
package com.confusionists.mjdj.fileIO;

import groovy.lang.GroovyClassLoader;
import groovy.lang.GroovyObject;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import com.confusionists.mjdj.ui.Logger;
import com.confusionists.mjdjApi.morph.Morph;
import com.confusionists.util.RecursiveFileList;

/**
 * This could be used for dynamic loading, but in practice, the developer has an IDE or build process. Groovy classes are loaded as classes.
 */
public class MorphLoaderGroovy {

    public void load(List<Morph> morphs) throws Exception {
        assert (MorphLoaderJava.classLoader != null);
        // get all .class files in the directory

        File[] files = RecursiveFileList.getList(ExternalDirectories.instance.morphsDirGroovy, "groovy");
        for (File file : files) {
        	
            GroovyClassLoader loader = new GroovyClassLoader(MorphLoaderJava.classLoader);

            try {
                Class<?> groovyClass = loader.parseClass(file);
                GroovyObject groovyObject = (GroovyObject) groovyClass.newInstance();
                System.out.println("Loaded groovy ok " + groovyClass.getSimpleName());
                morphs.add((Morph) groovyObject);
            } catch (InstantiationException ie) {
                System.out.println("Could not instantiate " + file.getName() + ", could be abstract.");
            } catch (Exception e) {
                Logger.log("Could not load Groovy translator " + file.getAbsolutePath().substring(ExternalDirectories.instance.morphsDirGroovy.getAbsolutePath().length()), e);
            }
            
            loader.close();

        }
    }

    /* testing main */
    public static void main(String[] args) throws Exception {
        MorphLoaderJava.main(args);
        List<Morph> morphs = new ArrayList<Morph>();
        System.out.println("Groovy loader " + morphs.size());

    }
}