void addSubtopicSubscribers(
Subtopic subtopic, Message message, Set<Object> ids, boolean evalSelector) {
// If we have a subtopic, we need to route the message only to that
// subset of subscribers.
if (!destination.getServerSettings().getAllowSubtopics()) {
// Throw an error - the destination doesn't allow subtopics.
ServiceException se = new ServiceException();
se.setMessage(
SUBTOPICS_NOT_SUPPORTED, new Object[] {subtopic.getValue(), destination.getId()});
throw se;
}
// Give a MessagingAdapter a chance to block the send to this subtopic.
ServiceAdapter adapter = destination.getAdapter();
if (adapter instanceof MessagingSecurity) {
if (!((MessagingSecurity) adapter).allowSend(subtopic)) {
ServiceException se = new ServiceException();
se.setMessage(10558, new Object[] {subtopic.getValue()});
throw se;
}
}
TopicSubscription ts;
if (subscribersPerSubtopic.containsKey(subtopic)) {
ts = subscribersPerSubtopic.get(subtopic);
addTopicSubscribers(ts, message, ids, evalSelector);
}
/*
* TODO: performance - organize these into a tree so we can find consumers via
* a hashtable lookup rather than a linear search
*/
Set<Subtopic> subtopics = subscribersPerSubtopicWildcard.keySet();
if (!subtopics.isEmpty()) {
for (Subtopic st : subtopics) {
if (st.matches(subtopic)) {
ts = subscribersPerSubtopicWildcard.get(st);
addTopicSubscribers(ts, message, ids, evalSelector);
}
}
}
}
/**
* Add a subscriber.
*
* @param clientId the client id
* @param selector the selector
* @param subtopicString the subtopic
* @param endpointId the endpoint
* @param maxFrequency maximum frequency
*/
public void addSubscriber(
Object clientId,
String selector,
String subtopicString,
String endpointId,
int maxFrequency) {
Subtopic subtopic = getSubtopic(subtopicString);
MessageClient client = null;
TopicSubscription topicSub;
Map<Object, MessageClient> subs;
Map<Subtopic, TopicSubscription> map;
try {
// Handle resubscribes from the same client and duplicate subscribes from different clients
boolean subscriptionAlreadyExists = (getSubscriber(clientId) != null);
client = getMessageClient(clientId, endpointId);
FlexClient flexClient = FlexContext.getFlexClient();
if (subscriptionAlreadyExists) {
// Block duplicate subscriptions from multiple FlexClients if they
// attempt to use the same clientId. (when this is called from a remote
// subscription, there won't be a flex client so skip this test).
if (flexClient != null && !flexClient.getId().equals(client.getFlexClient().getId())) {
ServiceException se = new ServiceException();
se.setMessage(10559, new Object[] {clientId});
throw se;
}
// It's a resubscribe. Reset the endpoint push state for the subscription to make sure its
// current
// because a resubscribe could be arriving over a new endpoint or a new session.
client.resetEndpoint(endpointId);
}
ServiceAdapter adapter = destination.getAdapter();
client.updateLastUse();
if (subtopic == null) {
topicSub = globalSubscribers;
} else {
if (!destination.getServerSettings().getAllowSubtopics()) {
// Throw an error - the destination doesn't allow subtopics.
ServiceException se = new ServiceException();
se.setMessage(
SUBTOPICS_NOT_SUPPORTED, new Object[] {subtopicString, destination.getId()});
throw se;
}
if (subtopic.containsSubtopicWildcard()
&& destination.getServerSettings().isDisallowWildcardSubtopics()) {
// Attempt to subscribe to the subtopic, ''{0}'', on destination, ''{1}'', that does not
// allow wilcard subtopics failed.
ServiceException se = new ServiceException();
se.setMessage(
WILDCARD_SUBTOPICS_NOT_ALLOWED, new Object[] {subtopicString, destination.getId()});
throw se;
}
// Give a MessagingAdapter a chance to block the subscribe.
if ((adapter instanceof MessagingSecurity) && (subtopic != null)) {
if (!((MessagingSecurity) adapter).allowSubscribe(subtopic)) {
ServiceException se = new ServiceException();
se.setMessage(10557, new Object[] {subtopicString});
throw se;
}
}
/*
* If there is a wildcard, we always need to match that subscription
* against the producer. If it has no wildcard, we can do a quick
* lookup to find the subscribers.
*/
if (subtopic.containsSubtopicWildcard()) map = subscribersPerSubtopicWildcard;
else map = subscribersPerSubtopic;
synchronized (this) {
topicSub = map.get(subtopic);
if (topicSub == null) {
topicSub = new TopicSubscription();
map.put(subtopic, topicSub);
}
}
}
/* Subscribing with no selector */
if (selector == null) {
subs = topicSub.defaultSubscriptions;
if (subs == null) {
synchronized (this) {
if ((subs = topicSub.defaultSubscriptions) == null)
topicSub.defaultSubscriptions = subs = new ConcurrentHashMap<Object, MessageClient>();
}
}
}
/* Subscribing with a selector - store all subscriptions under the selector key */
else {
synchronized (this) {
if (topicSub.selectorSubscriptions == null)
topicSub.selectorSubscriptions =
new ConcurrentHashMap<String, Map<Object, MessageClient>>();
}
subs = topicSub.selectorSubscriptions.get(selector);
if (subs == null) {
synchronized (this) {
if ((subs = topicSub.selectorSubscriptions.get(selector)) == null)
topicSub.selectorSubscriptions.put(
selector, subs = new ConcurrentHashMap<Object, MessageClient>());
}
}
}
if (subs.containsKey(clientId)) {
/* I'd rather this be an error but in 2.0 we allowed this without error */
if (Log.isWarn())
Log.getLogger(JMSSelector.LOG_CATEGORY)
.warn(
"Client: "
+ clientId
+ " already subscribed to: "
+ destination.getId()
+ " selector: "
+ selector
+ " subtopic: "
+ subtopicString);
} else {
client.addSubscription(selector, subtopicString, maxFrequency);
synchronized (this) {
/*
* Make sure other members of the cluster know that we are subscribed to
* this info if we are in server-to-server mode
*
* This has to be done in the synchronized section so that we properly
* order subscribe and unsubscribe messages for our peers so their
* subscription state matches the one in the local server.
*/
if (subs.isEmpty()
&& destination.isClustered()
&& destination.getServerSettings().getRoutingMode() == RoutingMode.SERVER_TO_SERVER)
sendSubscriptionToPeer(true, selector, subtopicString);
subs.put(clientId, client);
}
monitorTimeout(
client); // local operation, timeouts on remote host are not started until failover
// Finally, if a new MessageClient was created, notify its created
// listeners now that MessageClient's subscription state is setup.
if (!subscriptionAlreadyExists) client.notifyCreatedListeners();
}
} finally {
releaseMessageClient(client);
}
}
