/*
 * Copyright 2008-2013 Red Hat, Inc, and individual contributors.
 * 
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 * 
 * This software 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.torquebox.services.injection;

import org.jboss.msc.service.Service;
import org.jboss.msc.service.StartContext;
import org.jboss.msc.service.StartException;
import org.jboss.msc.service.StopContext;
import org.jruby.runtime.builtin.IRubyObject;
import org.torquebox.services.RubyService;

/** Injectable service for a service.
 * 
 * <p>This service wraps a {@link RubyService} to extract the actual
 * underlying <code>IRubyObject</code> for injection into other Ruby
 * code.</p>.
 * 
 * @author Bob McWhirter
 */
public class InjectableService implements Service<IRubyObject> {

    public InjectableService(RubyService service) {
        this.service = service;
    }

    @Override
    public IRubyObject getValue() throws IllegalStateException, IllegalArgumentException {
        return this.rubyService;
    }

    @Override
    public void start(StartContext context) throws StartException {
        this.rubyService = this.service.getComponent().getRubyComponent();
    }

    @Override
    public void stop(StopContext context) {
        this.rubyService = null;
    }

    private RubyService service;
    private IRubyObject rubyService;

}
