/**

 * Back 2 Browser Bytecode Translator

 * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

 *

 * 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, version 2 of the License.

 *

 * 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. Look for COPYING file in the top folder.

 * If not, see http://opensource.org/licenses/GPL-2.0.

 */

package org.apidesign.bck2brwsr.launcher.impl;

import java.util.TooManyListenersException;

import javafx.beans.value.ChangeListener;

/**

 *

 * @author Jaroslav Tulach <jtulach@netbeans.org>

 */

public final class JVMBridge {

    private static ClassLoader[] ldrs;

    private static ChangeListener<Void> onBck2BrwsrLoad;

    public static void registerClassLoaders(ClassLoader[] loaders) {

        ldrs = loaders.clone();

    }

    public static void addBck2BrwsrLoad(ChangeListener<Void> l) throws TooManyListenersException {

        if (onBck2BrwsrLoad != null) {

            throw new TooManyListenersException();

        }

        onBck2BrwsrLoad = l;

    }

    public static void onBck2BrwsrLoad() {

        ChangeListener<Void> l = onBck2BrwsrLoad;

        if (l != null) {

            l.changed(null, null, null);

        }

    }

    public Class<?> loadClass(String name) throws ClassNotFoundException {

        System.err.println("trying to load " + name);

        ClassNotFoundException ex = null;

        if (ldrs != null) for (ClassLoader l : ldrs) {

            try {

                return Class.forName(name, true, l);

            } catch (ClassNotFoundException ex2) {

                ex = ex2;

            }

        }

        if (ex == null) {

            ex = new ClassNotFoundException("No loaders");

        }

        throw ex;

    }

}