/**
* In addition to checking if the connection factory is set, make sure that the supplied
* connection factory is of the appropriate type for the specified destination type:
* QueueConnectionFactory for queues, and TopicConnectionFactory for topics.
*/
public void afterPropertiesSet() {
super.afterPropertiesSet();
// Make sure that the ConnectionFactory passed is consistent.
// Some provider implementations of the ConnectionFactory interface
// implement both domain interfaces under the cover, so just check if
// the selected domain is consistent with the type of connection factory.
if (isPubSubDomain()) {
if (!(getConnectionFactory() instanceof TopicConnectionFactory)) {
throw new IllegalArgumentException(
"Specified a Spring JMS 1.0.2 template for topics "
+ "but did not supply an instance of TopicConnectionFactory");
}
} else {
if (!(getConnectionFactory() instanceof QueueConnectionFactory)) {
throw new IllegalArgumentException(
"Specified a Spring JMS 1.0.2 template for queues "
+ "but did not supply an instance of QueueConnectionFactory");
}
}
}
/**
* Called to send messages to a JMS queue regarding new URLs to be crawled.
*
* @param submission
* @throws JMSException
*/
public void sendMessage(UrlSubmission submission) throws JMSException {
UrlMessageCreator creator =
new UrlMessageCreator(submission.getJobID(), submission.getUrl(), "user submission");
template.send(destination, creator);
log.info("sent submission message to crawler");
} // - sendMessage
