中间件编程

开发平台：
Java

TransportFactoryImpl.java：源码内容
							/*
 * JBoss, Home of Professional Open Source
 * Copyright 2008, Red Hat, Inc., and others contributors as indicated
 * by the @authors tag. All rights reserved.
 * See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU Lesser General Public License, v. 2.1.
 * This program is distributed in the hope that it will be useful, but WITHOUT A
 * 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,
 * v.2.1 along with this distribution; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA  02110-1301, USA.
 */
package org.jboss.blacktie.jatmibroker.core.transport.hybrid;
import java.util.Properties;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.naming.Context;
import javax.naming.InitialContext;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.jboss.blacktie.jatmibroker.core.conf.ConfigurationException;
import org.jboss.blacktie.jatmibroker.core.transport.OrbManagement;
import org.jboss.blacktie.jatmibroker.core.transport.Transport;
import org.jboss.blacktie.jatmibroker.core.transport.TransportFactory;
import org.jboss.blacktie.jatmibroker.xatmi.ConnectionException;
public class TransportFactoryImpl extends TransportFactory {
	private static final Logger log = LogManager
			.getLogger(TransportFactoryImpl.class);
	private OrbManagement orbManagement;
	private Properties props;
	private Context context;
	private ConnectionFactory factory;
	private Connection connection;
	protected void setProperties(Properties properties)
			throws ConfigurationException {
		log.debug("Creating OrbManagement");
		try {
			props = new Properties();
			props.setProperty("java.naming.factory.initial",
					"org.jnp.interfaces.NamingContextFactory");
			props.setProperty("java.naming.factory.url.pkgs",
					"org.jboss.naming:org.jnp.interfaces");
			props.setProperty("java.naming.provider.url", (String) properties
					.get("java.naming.provider.url"));
			props.putAll(properties);
			context = new InitialContext(props);
			factory = (ConnectionFactory) context.lookup("ConnectionFactory");
			String username = (String) props.get("StompConnectUsr");
			String password = (String) props.get("StompConnectPwd");
			if (username != null) {
				connection = factory.createConnection(username, password);
			} else {
				connection = factory.createConnection();
			}
		} catch (Throwable t) {
			throw new ConfigurationException(
					"Could not create the required connection", t);
		}
		try {
			orbManagement = new OrbManagement(properties, false);
		} catch (Throwable t) {
			throw new ConfigurationException(
					"Could not create the orb management function", t);
		}
		log.debug("Created OrbManagement");
	}
	public Transport createTransport() throws ConnectionException {
		log.debug("Creating");
		TransportImpl instance = null;
		try {
			instance = new TransportImpl(orbManagement, context, connection,
					props);
		} catch (Throwable t) {
			throw new ConnectionException(-1, "Could not connect to server", t);
		}
		log.debug("Created");
		return instance;
	}
}

						