public void addSubscription(
long consumerID,
String subscriptionID,
String clientID,
String durableSubscriptionName,
String destination,
String selector,
String ack)
throws Exception {
SimpleString queue = SimpleString.toSimpleString(destination);
int receiveCredits = consumerCredits;
if (ack.equals(Stomp.Headers.Subscribe.AckModeValues.AUTO)) {
receiveCredits = -1;
}
if (destination.startsWith("jms.topic")) {
// subscribes to a topic
if (durableSubscriptionName != null) {
if (clientID == null) {
throw BUNDLE.missingClientID();
}
queue = SimpleString.toSimpleString(clientID + "." + durableSubscriptionName);
QueueQueryResult query = session.executeQueueQuery(queue);
if (!query.isExists()) {
session.createQueue(
SimpleString.toSimpleString(destination),
queue,
SimpleString.toSimpleString(selector),
false,
true);
}
} else {
queue = UUIDGenerator.getInstance().generateSimpleStringUUID();
session.createQueue(
SimpleString.toSimpleString(destination),
queue,
SimpleString.toSimpleString(selector),
true,
false);
}
((ServerSessionImpl) session)
.createConsumer(consumerID, queue, null, false, false, receiveCredits);
} else {
((ServerSessionImpl) session)
.createConsumer(
consumerID,
queue,
SimpleString.toSimpleString(selector),
false,
false,
receiveCredits);
}
StompSubscription subscription = new StompSubscription(subscriptionID, ack);
subscriptions.put(consumerID, subscription);
session.start();
}
public boolean unsubscribe(String id, String durableSubscriptionName) throws Exception {
Iterator<Entry<Long, StompSubscription>> iterator = subscriptions.entrySet().iterator();
while (iterator.hasNext()) {
Map.Entry<Long, StompSubscription> entry = iterator.next();
long consumerID = entry.getKey();
StompSubscription sub = entry.getValue();
if (id != null && id.equals(sub.getID())) {
iterator.remove();
session.closeConsumer(consumerID);
SimpleString queueName;
if (durableSubscriptionName != null && durableSubscriptionName.trim().length() != 0) {
queueName = SimpleString.toSimpleString(id + "." + durableSubscriptionName);
} else {
queueName = SimpleString.toSimpleString(id);
}
QueueQueryResult query = session.executeQueueQuery(queueName);
if (query.isExists()) {
session.deleteQueue(queueName);
}
return true;
}
}
return false;
}