package org.jboss.narayana.blacktie.jatmibroker.xatmi;
import java.util.Properties;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.jboss.narayana.blacktie.jatmibroker.core.conf.AtmiBrokerEnvXML;
import org.jboss.narayana.blacktie.jatmibroker.core.conf.ConfigurationException;
/**
* This is a factory that will create connections to remote Blacktie services.
*
* @see Connection
* @see ConnectionException
*/
public class ConnectionFactory {
private static final Logger log = LogManager
.getLogger(ConnectionFactory.class);
/**
* The properties inside the connection factory.
*/
private Properties properties = new Properties();
/**
* The connection factory will allocate a connection per thread.
*/
private static ThreadLocal<Connection> connections = new ThreadLocal<Connection>();
/**
* Get the default connection factory
*
* @return The connection factory
* @throws ConfigurationException
* If the configuration cannot be parsed.
*/
public static synchronized ConnectionFactory getConnectionFactory()
throws ConfigurationException {
return new ConnectionFactory();
}
/**
* Create the connection factory
*
* @throws ConfigurationException
* In case the configuration could not be loaded
*/
private ConnectionFactory() throws ConfigurationException {
log.debug("Creating connection factory: " + this);
AtmiBrokerEnvXML xml = new AtmiBrokerEnvXML();
properties.putAll(xml.getProperties());
log.debug("Created connection factory: " + this);
}
/**
* Get the connection for this thread.
*
* @return The connection for this thread.
* @throws ConfigurationException
*/
public Connection getConnection() throws ConfigurationException {
Connection connection = connections.get();
if (connection == null) {
connection = new Connection(this, properties);
connections.set(connection);
log.debug("Returning connection: " + connection);
}
return connection;
}
/**
* Remove the connection from the factory after closure.
*
* @param connection
* The connection to remove.
*/
void removeConnection(Connection connection) {
connections.set(null);
}
}