public DigitalLibraryServer() {
try {
Properties properties = new Properties();
properties.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
properties.put(Context.URL_PKG_PREFIXES, "org.jnp.interfaces");
properties.put(Context.PROVIDER_URL, "localhost");
InitialContext jndi = new InitialContext(properties);
ConnectionFactory conFactory = (ConnectionFactory) jndi.lookup("XAConnectionFactory");
connection = conFactory.createConnection();
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
try {
counterTopic = (Topic) jndi.lookup("counterTopic");
} catch (NamingException NE1) {
System.out.println("NamingException: " + NE1 + " : Continuing anyway...");
}
if (null == counterTopic) {
counterTopic = session.createTopic("counterTopic");
jndi.bind("counterTopic", counterTopic);
}
consumer = session.createConsumer(counterTopic);
consumer.setMessageListener(this);
System.out.println("Server started waiting for client requests");
connection.start();
} catch (NamingException NE) {
System.out.println("Naming Exception: " + NE);
} catch (JMSException JMSE) {
System.out.println("JMS Exception: " + JMSE);
JMSE.printStackTrace();
}
}
/**
* Establishes a connection to a registry.
*
* @param queryUrl the URL of the query registry
* @param publishUrl the URL of the publish registry
*/
public void makeConnection(String queryUrl, String publishUrl) {
Context context = null;
ConnectionFactory factory = null;
/*
* Define connection configuration properties.
* To publish, you need both the query URL and the
* publish URL.
*/
Properties props = new Properties();
props.setProperty("javax.xml.registry.queryManagerURL", queryUrl);
props.setProperty("javax.xml.registry.lifeCycleManagerURL", publishUrl);
try {
// Create the connection, passing it the
// configuration properties
context = new InitialContext();
factory = (ConnectionFactory) context.lookup("java:comp/env/eis/JAXR");
factory.setProperties(props);
connection = factory.createConnection();
System.out.println("Created connection to registry");
} catch (Exception e) {
e.printStackTrace();
if (connection != null) {
try {
connection.close();
} catch (JAXRException je) {
}
}
}
}