package org.jboss.weld.environment.jetty7;


import org.eclipse.jetty.webapp.AbstractConfiguration;
import org.eclipse.jetty.webapp.Configuration;
import org.eclipse.jetty.webapp.WebAppContext;
import org.jboss.weld.environment.servlet.Listener;

import java.util.EventListener;

/**
 * Jetty 7 Configuration to setup Weld environment
 */
public class WeldConfiguration extends AbstractConfiguration {

  @Override
  public void preConfigure (WebAppContext context)
  throws Exception
  {
      context.addDecorator(new WeldDecorator(context.getServletContext()));
  }

  @Override
  public void cloneConfigure(WebAppContext template, WebAppContext context) throws Exception
  {
    context.addDecorator(new WeldDecorator(context.getServletContext()));
  }

  @Override
  public void configure (WebAppContext context)
  throws Exception
  {
  }

  @Override
  public void postConfigure(WebAppContext context) throws Exception
  {
  }

  @Override
  public void deconfigure (WebAppContext context)
  throws Exception
  {
    // May have to release listeners here
  }


  public static void register(WebAppContext wac) throws Exception {
    final WeldConfiguration configuration = new WeldConfiguration();
    configuration.preConfigure(wac);
    configuration.configure(wac);

    appendConfiguration(wac, configuration);
  }

  private static void appendConfiguration(WebAppContext ctx, Configuration c)
  {
     Configuration[] existing = ctx.getConfigurations();
     Configuration[] updated = new Configuration[existing.length + 1];
     System.arraycopy(existing, 0, updated, 0, existing.length);
     updated[existing.length] = c;
     ctx.setConfigurations(updated);
  }

}