Package org.jboss.forge.shell

Source Code of org.jboss.forge.shell.Bootstrap

/*
* JBoss, by Red Hat.
* Copyright 2010, Red Hat, Inc., and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of 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.jboss.forge.shell;

import java.io.File;
import java.util.logging.Handler;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.enterprise.event.Observes;
import javax.enterprise.inject.spi.BeanManager;
import javax.inject.Inject;

import org.jboss.forge.shell.events.AcceptUserInput;
import org.jboss.forge.shell.events.PostStartup;
import org.jboss.forge.shell.events.PreStartup;
import org.jboss.forge.shell.events.ReinitializeEnvironment;
import org.jboss.forge.shell.events.Shutdown;
import org.jboss.forge.shell.events.Startup;
import org.jboss.modules.ModuleLoader;
import org.jboss.weld.environment.se.Weld;
import org.jboss.weld.environment.se.WeldContainer;

/**
* @author <a href="mailto:lincolnbaxter@gmail.com">Lincoln Baxter, III</a>
* @author Mike Brock
* @author Ronald van Kuijk
*/
public class Bootstrap
{
   private static Thread currentShell = null;
   private static boolean restartRequested = false;
   private static File workingDir = new File("").getAbsoluteFile();

   @Inject
   private BeanManager manager;

   public static void main(final String[] args)
   {
      init();
   }

   private static void init()
   {
      do
      {
         loadPlugins();
         currentShell = new Thread(new Runnable()
         {
            @Override
            public void run()
            {
               boolean restarting = restartRequested;
               restartRequested = false;

               initLogging();
               Weld weld = new Weld();
               WeldContainer container = weld.initialize();
               BeanManager manager = container.getBeanManager();
               manager.fireEvent(new PreStartup());
               manager.fireEvent(new Startup(workingDir, restarting));
               manager.fireEvent(new PostStartup());
               manager.fireEvent(new AcceptUserInput());
               weld.shutdown();
            }
         });

         currentShell.start();
         try
         {
            currentShell.join();
         }
         catch (InterruptedException e)
         {
            throw new RuntimeException(e);
         }
      }
      while (restartRequested);
   }

   public void observeReinitialize(@Observes final ReinitializeEnvironment event, final Shell shell)
   {
      workingDir = shell.getCurrentDirectory().getUnderlyingResourceObject();
      manager.fireEvent(new Shutdown());
      restartRequested = true;
   }

   private static void initLogging()
   {
      String[] loggerNames = new String[] { "", "main", Logger.GLOBAL_LOGGER_NAME };
      for (String loggerName : loggerNames)
      {
         Logger globalLogger = Logger.getLogger(loggerName);
         Handler[] handlers = globalLogger.getHandlers();
         for (Handler handler : handlers)
         {
            handler.setLevel(Level.SEVERE);
            globalLogger.removeHandler(handler);
         }
      }
   }

   synchronized private static void loadPlugins()
   {
      try {
         ModuleLoader moduleLoader = ModuleLoader.forClassLoader(Bootstrap.class.getClassLoader());

         ClassLoader cl = Thread.currentThread().getContextClassLoader();
         if (cl == null)
         {
            cl = Bootstrap.class.getClassLoader();
         }
      }
      catch (Exception e) {
         // TODO Auto-generated catch block
         e.printStackTrace();
      }
   }
}
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