/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2006, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file 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.resource.adapter.jdbc.local;

import java.sql.Connection;
import java.sql.SQLException;
import java.util.Properties;

import javax.resource.ResourceException;
import javax.resource.spi.LocalTransaction;
import javax.transaction.xa.XAResource;

import org.jboss.resource.JBossResourceException;
import org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection;

/**
 * LocalManagedConnection
 *
 * @author <a href="mailto:d_jencks@users.sourceforge.net">David Jencks</a>
 * @author <a href="mailto:adrian@jboss.com">Adrian Brock</a>
 * @version $Revision: 71788 $
 */
public class LocalManagedConnection extends BaseWrapperManagedConnection implements LocalTransaction
{
   public LocalManagedConnection(final LocalManagedConnectionFactory mcf, final Connection con, final Properties props,
         final int transactionIsolation, final int psCacheSize) throws SQLException
   {
      super(mcf, con, props, transactionIsolation, psCacheSize);
   }

   public LocalTransaction getLocalTransaction() throws ResourceException
   {
      return this;
   }

   public XAResource getXAResource() throws ResourceException
   {
      throw new JBossResourceException("Local tx only!");
   }

   public void commit() throws ResourceException
   {
      lock();
      try
      {
         synchronized (stateLock)
         {
            if (inManagedTransaction)
               inManagedTransaction = false;
         }
         try
         {
            con.commit();
         }
         catch (SQLException e)
         {
            checkException(e);
         }
      }
      finally
      {
         unlock();
      }
   }

   public void rollback() throws ResourceException
   {
      lock();
      try
      {
         synchronized (stateLock)
         {
            if (inManagedTransaction)
               inManagedTransaction = false;
         }
         try
         {
            con.rollback();
         }
         catch (SQLException e)
         {
            try
            {
               checkException(e);
            }
            catch (Exception e2)
            {
            }
         }
      }
      finally
      {
         unlock();
      }
   }

   public void begin() throws ResourceException
   {
      lock();
      try
      {
         synchronized (stateLock)
         {
            if (inManagedTransaction == false)
            {
               try
               {
                  if (underlyingAutoCommit)
                  {
                     underlyingAutoCommit = false;
                     con.setAutoCommit(false);
                  }
                  checkState();
                  inManagedTransaction = true;
               }
               catch (SQLException e)
               {
                  checkException(e);
               }
            }
            else
               throw new JBossResourceException("Trying to begin a nested local tx");
         }
      }
      finally
      {
         unlock();
      }
   }


}
