/*
  * JBoss, Home of Professional Open Source
  * Copyright 2005, JBoss Inc., and individual contributors as indicated
  * 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.ejb3;

import java.util.Hashtable;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javassist.bytecode.AnnotationsAttribute;
import javassist.bytecode.annotation.Annotation;
import javassist.bytecode.annotation.StringMemberValue;

/**
 * Comment
 *
 * @author <a href="mailto:bill@jboss.org">Bill Burke</a>
 * @version $Revision$
 */
public class EJB3Util
{
   public static boolean isStateless(AnnotationsAttribute group)
   {
      return group.getAnnotation(javax.ejb.Stateless.class.getName()) != null;
   }

   public static boolean isStatefulSession(AnnotationsAttribute group)
   {
      return group.getAnnotation(javax.ejb.Stateful.class.getName()) != null;
   }

   public static boolean isEntity(AnnotationsAttribute group)
   {
      return group.getAnnotation(javax.persistence.Entity.class.getName()) != null;
   }

   public static boolean isMessageDriven(AnnotationsAttribute group)
   {
      return group.getAnnotation(javax.ejb.MessageDriven.class.getName()) != null;
   }

   public static boolean isService(AnnotationsAttribute group)
   {
      return group.getAnnotation(org.jboss.annotation.ejb.Service.class.getName()) != null;
   }

   public static boolean isConsumer(AnnotationsAttribute group)
   {
      return group.getAnnotation(org.jboss.annotation.ejb.Consumer.class.getName()) != null;
   }

   public static String getAspectDomain(AnnotationsAttribute visible, String defaultContainerName)
   {
      if (visible != null )
      {
         Annotation dinfo = visible.getAnnotation(org.jboss.annotation.ejb.AspectDomain.class
                                      .getName());
         if (dinfo != null)
         {
            StringMemberValue dmv = (StringMemberValue) dinfo
                    .getMemberValue("value");
            if (dmv != null)
            {
               return dmv.getValue();
            }
         }
      }
      
      return defaultContainerName;
   }

   public static InitialContext getInitialContext(Hashtable props)
           throws NamingException
   {
      InitialContext ctx = null;
      if (props != null)
      {
         ctx = new InitialContext(props);
      }
      else ctx = new InitialContext();
      return ctx;
   }
}


