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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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package javax.ejb.embeddable;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import javax.ejb.EJBException;
import javax.ejb.spi.EJBContainerProvider;
import javax.naming.Context;

/**
 * Used to execute an EJB application in an embeddable container.
 * 
 * @author Carlo de Wolf
 * @version $Revision$
 * @since 3.1
 */
public abstract class EJBContainer implements AutoCloseable
{
   public static final String APP_NAME = "javax.ejb.embeddable.appName";
   public static final String MODULES = "javax.ejb.embeddable.modules";
   public static final String PROVIDER = "javax.ejb.embeddable.provider";
   
   private static final Pattern nonCommentPattern = Pattern.compile("^([^#]+)");

   private static List factories = new ArrayList();
   
   static
   {
      findAllFactories();
   }
   
   /**
    * Shutdown an embeddable EJBContainer instance.
    */
   @Override
   public abstract void close();
   
   /**
    * Create and initialize an embeddable EJB container. 
    * JVM classpath is searched for all ejb-jars or exploded ejb-jars in directory format.
    * 
    * @return EJBContainer instance
    * @throws EJBException Thrown if the container or application could not 
    *   be successfully initialized.
    */
   public static EJBContainer createEJBContainer() throws EJBException
   {
      return createEJBContainer(null);
   }
   
   /**
    * Create and initialize an embeddable EJB container with an 
    * set of configuration properties and names of modules to be initialized. 
    * 
    * @param properties One or more spec-defined or vendor-specific properties. 
    *   The spec reserves the prefix "javax.ejb." for spec-defined properties.
    * @return EJBContainer instance
    * @throws EJBException Thrown if the container or application could not 
    *   be successfully initialized.
    */
   public static EJBContainer createEJBContainer(Map properties)
      throws EJBException
   {
      for(EJBContainerProvider factory : factories)
      {
         EJBContainer container = factory.createEJBContainer(properties);
         if(container != null)
            return container;
      }
      throw new EJBException("Unable to instantiate container with factories " + factories);
   }
   
   private static List factoryNamesFromReader(BufferedReader reader) throws IOException
   {
      List names = new ArrayList();
      String line;
      while ((line = reader.readLine()) != null)
      {
         line = line.trim();
         Matcher m = nonCommentPattern.matcher(line);
         if (m.find())
         {
            names.add(m.group().trim());
         }
      }
      return names;
   }
   
   private static void findAllFactories()
   {
      try
      {
         ClassLoader loader = Thread.currentThread().getContextClassLoader();
         Enumeration resources = loader.getResources("META-INF/services/" + EJBContainerProvider.class.getName());
         Set names = new HashSet();
         while (resources.hasMoreElements())
         {
            URL url = resources.nextElement();
            InputStream is = url.openStream();
            try
            {
               names.addAll(factoryNamesFromReader(new BufferedReader(new InputStreamReader(is))));
            }
            finally
            {
               is.close();
            }
         }
         for (String s : names)
         {
            Class factoryClass = loader.loadClass(s);
            factories.add(EJBContainerProvider.class.cast(factoryClass.newInstance()));
         }
      }
      catch (IOException e)
      {
         throw new EJBException(e);
      }
      catch (InstantiationException e)
      {
         throw new EJBException(e);
      }
      catch (IllegalAccessException e)
      {
         throw new EJBException(e);
      }
      catch (ClassNotFoundException e)
      {
         throw new EJBException(e);
      }
   }
   
   /**
    * Retrieve a naming context for looking up references to session beans executing in
    * the embeddable container.
    * 
    * @return The naming context.
    */
   public abstract Context getContext();
}




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