gai.kernel.BeanContainer.java Source code

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Here is the source code for gai.kernel.BeanContainer.java

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/*
   Copyright (c) 2009
  Marcel Hauf <marcel.hauf@googlemail.com>
  Robin Vobruba <hoijui.quaero@gmail.com>
    
   This file is part of GAI (Groovy skirmish Artificial Intelligence
   for the spring RTS game engine).
    
   GAI 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 of the License, or
   (at your option) any later version.
    
   Foobar 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 GAI; If not, see <http://www.gnu.org/licenses/>.
*/

package gai.kernel;

import org.apache.commons.logging.*;

import org.springframework.context.support.GenericApplicationContext;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
 * Loads the Kernel and agents .
 * @see gai.agents.AgentEnvironment#getCallback()
 */
public class BeanContainer extends GenericApplicationContext {

    public static final ClassLoader MY_CLASS_LOADER = BeanContainer.class.getClassLoader();
    private static Log log = LogFactory.getLog("gai");

    private ApplicationContext context = null;

    public static BeanContainer getInstance() {
        return new BeanContainer();
    }

    public void initContext() {

        // TODO FIXME: ClassLoader issue!!
        // Without this line, JRuby and BeanShell scripts can not be loaded
        // through the spring framework.
        // But this line will probably cause problems when our AI is used
        // together with other AI implementations that rely on the context
        // class loader as well, if they have to use a similar hack.
        ClassLoader originalContextClassLoader = Thread.currentThread().getContextClassLoader();
        Thread.currentThread().setContextClassLoader(MY_CLASS_LOADER);
        //this.setClassLoader(MY_CLASS_LOADER);

        context = new ClassPathXmlApplicationContext("beans.xml");
        setParent(context);

        // reset the original CL, to try to prevent crashing with
        // other Java AI implementations
        Thread.currentThread().setContextClassLoader(originalContextClassLoader);
    }
}