package org.apache.ojb.broker.accesslayer;

 /* Copyright 2002-2005 The Apache Software Foundation

  *

  * Licensed under the Apache License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  *     http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 import org.apache.ojb.broker.metadata.JdbcConnectionDescriptor;

 import org.apache.ojb.broker.util.logging.Logger;

 import org.apache.ojb.broker.util.logging.LoggerFactory;

 import java.sql.Connection;

 import java.sql.SQLException;

 /**

  * Base implementation without connection pooling.

  *

  * @author <a href="mailto:armin@codeAuLait.de">Armin Waibel</a>

  * @version $Id: ConnectionFactoryNotPooledImpl.java,v 1.1 2007-08-24 22:17:30 ewestfal Exp $

  */

 public class ConnectionFactoryNotPooledImpl extends ConnectionFactoryAbstractImpl

 {

     private Logger log = LoggerFactory.getLogger(ConnectionFactoryNotPooledImpl.class);

     public Connection checkOutJdbcConnection(JdbcConnectionDescriptor jcd) throws LookupException

     {

         if (log.isDebugEnabled())

         {

             log.debug("checkOutJdbcConnection: this implementation always return a new Connection");

         }

         final Connection conn = newConnectionFromDriverManager(jcd);

         validateConnection(conn, jcd);

         // Connection is now guaranteed to be valid (else validateConnection must throw exception)

         return conn;

     }

     protected void validateConnection(Connection conn, JdbcConnectionDescriptor jcd)

             throws LookupException

     {

         if (conn == null)

         {

             log.error(getJcdDescription(jcd) + " failed, DriverManager returned null");

             throw new LookupException("No Connection returned from DriverManager");

         }

         try

         {

             if (conn.isClosed())

             {

                 log.error(getJcdDescription(jcd) + " is invalid (closed)");

                 throw new LookupException("Could not create valid connection, connection was " +

                                           conn);

             }

         }

         catch (SQLException e)

         {

             log.error(getJcdDescription(jcd) + " failed validation with exception");

             throw new LookupException("Connection validation failed", e);

         }

     }

     public void releaseJdbcConnection(JdbcConnectionDescriptor jcd, Connection con)

             throws LookupException

     {

         try

         {

             con.close();

         }

         catch (SQLException e)

         {

             log.warn("Connection.close() failed, message was " + e.getMessage());

         }

     }

 }