in artemis-protocols/artemis-amqp-protocol/src/main/java/org/apache/activemq/artemis/protocol/amqp/proton/ProtonServerSenderContext.java [988:1292]
public Consumer init(ProtonServerSenderContext senderContext) throws Exception {
Source source = (Source) sender.getRemoteSource();
final Map<Symbol, Object> supportedFilters = new HashMap<>();
// Match the settlement mode of the remote instead of relying on the default of MIXED.
sender.setSenderSettleMode(sender.getRemoteSenderSettleMode());
// We don't currently support SECOND so enforce that the answer is anlways FIRST
sender.setReceiverSettleMode(ReceiverSettleMode.FIRST);
if (source != null) {
// We look for message selectors on every receiver, while in other cases we might only
// consume the filter depending on the subscription type.
Map.Entry<Symbol, DescribedType> filter = AmqpSupport.findFilter(source.getFilter(), AmqpSupport.JMS_SELECTOR_FILTER_IDS);
if (filter != null) {
selector = filter.getValue().getDescribed().toString();
// Validate the Selector.
try {
SelectorParser.parse(selector);
} catch (FilterException e) {
throw new ActiveMQAMQPException(AmqpError.INVALID_FIELD, "Invalid filter", ActiveMQExceptionType.INVALID_FILTER_EXPRESSION);
}
supportedFilters.put(filter.getKey(), filter.getValue());
}
}
if (source == null) {
// Attempt to recover a previous subscription happens when a link reattach happens on a
// subscription queue
String clientId = getClientId();
String pubId = sender.getName();
global = hasRemoteDesiredCapability(sender, GLOBAL);
shared = hasRemoteDesiredCapability(sender, SHARED);
queue = createQueueName(connection.isUseCoreSubscriptionNaming(), clientId, pubId, true, global, false);
QueueQueryResult result = sessionSPI.queueQuery(queue, RoutingType.MULTICAST, false);
multicast = true;
routingTypeToUse = RoutingType.MULTICAST;
// Once confirmed that the address exists we need to return a Source that reflects
// the lifetime policy and capabilities of the new subscription.
if (result.isExists()) {
source = new org.apache.qpid.proton.amqp.messaging.Source();
source.setAddress(queue.toString());
source.setDurable(TerminusDurability.UNSETTLED_STATE);
source.setExpiryPolicy(TerminusExpiryPolicy.NEVER);
source.setDistributionMode(COPY);
source.setCapabilities(TOPIC);
SimpleString filterString = result.getFilterString();
if (filterString != null) {
selector = filterString.toString();
boolean noLocal = false;
String remoteContainerId = sender.getSession().getConnection().getRemoteContainer();
String noLocalFilter = MessageUtil.CONNECTION_ID_PROPERTY_NAME.toString() + "<>'" + remoteContainerId + "'";
if (selector.endsWith(noLocalFilter)) {
if (selector.length() > noLocalFilter.length()) {
noLocalFilter = " AND " + noLocalFilter;
selector = selector.substring(0, selector.length() - noLocalFilter.length());
} else {
selector = null;
}
noLocal = true;
}
if (noLocal) {
supportedFilters.put(AmqpSupport.NO_LOCAL_NAME, AmqpNoLocalFilter.NO_LOCAL);
}
if (selector != null && !selector.trim().isEmpty()) {
supportedFilters.put(AmqpSupport.JMS_SELECTOR_NAME, new AmqpJmsSelectorFilter(selector));
}
}
sender.setSource(source);
} else {
throw new ActiveMQAMQPNotFoundException("Unknown subscription link: " + sender.getName());
}
} else if (source.getDynamic()) {
// if dynamic we have to create the node (queue) and set the address on the target, the
// node is temporary and will be deleted on closing of the session
queue = SimpleString.toSimpleString(java.util.UUID.randomUUID().toString());
tempQueueName = queue;
try {
sessionSPI.createTemporaryQueue(queue, RoutingType.ANYCAST);
// protonSession.getServerSession().createQueue(queue, queue, null, true, false);
} catch (Exception e) {
throw ActiveMQAMQPProtocolMessageBundle.BUNDLE.errorCreatingTemporaryQueue(e.getMessage());
}
source.setAddress(queue.toString());
} else {
SimpleString addressToUse;
SimpleString queueNameToUse = null;
shared = hasCapabilities(SHARED, source);
global = hasCapabilities(GLOBAL, source);
final boolean isFQQN;
//find out if we have an address made up of the address and queue name, if yes then set queue name
if (CompositeAddress.isFullyQualified(source.getAddress())) {
isFQQN = true;
addressToUse = SimpleString.toSimpleString(CompositeAddress.extractAddressName(source.getAddress()));
queueNameToUse = SimpleString.toSimpleString(CompositeAddress.extractQueueName(source.getAddress()));
} else {
isFQQN = false;
addressToUse = SimpleString.toSimpleString(source.getAddress());
}
//check to see if the client has defined how we act
boolean clientDefined = hasCapabilities(TOPIC, source) || hasCapabilities(QUEUE, source);
if (clientDefined) {
multicast = hasCapabilities(TOPIC, source);
AddressQueryResult addressQueryResult = null;
try {
addressQueryResult = sessionSPI.addressQuery(addressToUse, multicast ? RoutingType.MULTICAST : RoutingType.ANYCAST, true);
} catch (ActiveMQSecurityException e) {
throw ActiveMQAMQPProtocolMessageBundle.BUNDLE.securityErrorCreatingConsumer(e.getMessage());
} catch (ActiveMQAMQPException e) {
throw e;
} catch (Exception e) {
throw new ActiveMQAMQPInternalErrorException(e.getMessage(), e);
}
if (!addressQueryResult.isExists()) {
throw ActiveMQAMQPProtocolMessageBundle.BUNDLE.sourceAddressDoesntExist();
}
Set<RoutingType> routingTypes = addressQueryResult.getRoutingTypes();
//if the client defines 1 routing type and the broker another then throw an exception
if (multicast && !routingTypes.contains(RoutingType.MULTICAST)) {
throw new ActiveMQAMQPIllegalStateException("Address " + addressToUse + " is not configured for topic support");
} else if (!multicast && !routingTypes.contains(RoutingType.ANYCAST)) {
//if client specifies fully qualified name that's allowed, don't throw exception.
if (queueNameToUse == null) {
throw new ActiveMQAMQPIllegalStateException("Address " + addressToUse + " is not configured for queue support");
}
}
} else {
// if not we look up the address
AddressQueryResult addressQueryResult = null;
// Set this to the broker configured default for the address prior to the lookup so that
// an auto create will actually use the configured defaults. The actual query result will
// contain the true answer on what routing type the address actually has though.
final RoutingType routingType = sessionSPI.getDefaultRoutingType(addressToUse);
routingTypeToUse = routingType == null ? ActiveMQDefaultConfiguration.getDefaultRoutingType() : routingType;
try {
addressQueryResult = sessionSPI.addressQuery(addressToUse, routingTypeToUse, true);
} catch (ActiveMQSecurityException e) {
throw ActiveMQAMQPProtocolMessageBundle.BUNDLE.securityErrorCreatingConsumer(e.getMessage());
} catch (ActiveMQAMQPException e) {
throw e;
} catch (Exception e) {
throw new ActiveMQAMQPInternalErrorException(e.getMessage(), e);
}
if (!addressQueryResult.isExists()) {
throw ActiveMQAMQPProtocolMessageBundle.BUNDLE.sourceAddressDoesntExist();
}
Set<RoutingType> routingTypes = addressQueryResult.getRoutingTypes();
if (routingTypes.contains(RoutingType.MULTICAST) && routingTypes.size() == 1) {
multicast = true;
} else {
//todo add some checks if both routing types are supported
multicast = false;
}
}
routingTypeToUse = multicast ? RoutingType.MULTICAST : RoutingType.ANYCAST;
// if not dynamic then we use the target's address as the address to forward the
// messages to, however there has to be a queue bound to it so we need to check this.
if (multicast) {
Map.Entry<Symbol, DescribedType> filter = AmqpSupport.findFilter(source.getFilter(), AmqpSupport.NO_LOCAL_FILTER_IDS);
if (filter != null) {
String remoteContainerId = sender.getSession().getConnection().getRemoteContainer();
String noLocalFilter = MessageUtil.CONNECTION_ID_PROPERTY_NAME.toString() + "<>'" + remoteContainerId + "'";
if (selector != null) {
selector += " AND " + noLocalFilter;
} else {
selector = noLocalFilter;
}
supportedFilters.put(filter.getKey(), filter.getValue());
}
SimpleString simpleStringSelector = SimpleString.toSimpleString(selector);
queue = getMatchingQueue(queueNameToUse, addressToUse, RoutingType.MULTICAST, simpleStringSelector, isFQQN);
//if the address specifies a broker configured queue then we always use this, treat it as a queue
if (queue != null) {
multicast = false;
} else if (TerminusDurability.UNSETTLED_STATE.equals(source.getDurable()) || TerminusDurability.CONFIGURATION.equals(source.getDurable())) {
// if we are a subscription and durable create a durable queue using the container
// id and link name
String clientId = getClientId();
String pubId = sender.getName();
queue = createQueueName(connection.isUseCoreSubscriptionNaming(), clientId, pubId, shared, global, false);
QueueQueryResult result = sessionSPI.queueQuery(queue, routingTypeToUse, false);
if (result.isExists()) {
/*
* If a client attaches to an existing durable subscription with a different filter or address then
* we must recreate the queue (JMS semantics). However, if the corresponding queue is managed via the
* configuration then we don't want to change it. We must account for optional address prefixes that
* are not carried over into the actual created address by stripping any prefix value that matches
* those configured on the acceptor.
*/
if (!result.isConfigurationManaged() &&
(!Objects.equals(result.getAddress(), sessionSPI.removePrefix(addressToUse)) ||
!Objects.equals(result.getFilterString(), simpleStringSelector))) {
if (result.getConsumerCount() == 0) {
sessionSPI.deleteQueue(queue);
if (shared) {
sessionSPI.createSharedDurableQueue(addressToUse, RoutingType.MULTICAST, queue, simpleStringSelector);
} else {
sessionSPI.createUnsharedDurableQueue(addressToUse, RoutingType.MULTICAST, queue, simpleStringSelector);
}
} else {
throw new ActiveMQAMQPIllegalStateException("Unable to recreate subscription, consumers already exist");
}
}
} else {
if (shared) {
sessionSPI.createSharedDurableQueue(addressToUse, RoutingType.MULTICAST, queue, simpleStringSelector);
} else {
sessionSPI.createUnsharedDurableQueue(addressToUse, RoutingType.MULTICAST, queue, simpleStringSelector);
}
}
} else {
// otherwise we are a volatile subscription
isVolatile = true;
if (shared && sender.getName() != null) {
queue = createQueueName(connection.isUseCoreSubscriptionNaming(), getClientId(), sender.getName(), shared, global, isVolatile);
QueueQueryResult result = sessionSPI.queueQuery(queue, routingTypeToUse, false);
if ((!result.isExists() || !Objects.equals(result.getAddress(), addressToUse) || !Objects.equals(result.getFilterString(), simpleStringSelector)) && !result.isConfigurationManaged()) {
sessionSPI.createSharedVolatileQueue(addressToUse, RoutingType.MULTICAST, queue, simpleStringSelector);
}
} else {
queue = SimpleString.toSimpleString(java.util.UUID.randomUUID().toString());
tempQueueName = queue;
try {
sessionSPI.createTemporaryQueue(addressToUse, queue, RoutingType.MULTICAST, simpleStringSelector);
} catch (Exception e) {
throw ActiveMQAMQPProtocolMessageBundle.BUNDLE.errorCreatingTemporaryQueue(e.getMessage());
}
}
}
} else {
if (queueNameToUse != null) {
SimpleString matchingAnycastQueue;
QueueQueryResult result = sessionSPI.queueQuery(CompositeAddress.toFullyQualified(addressToUse, queueNameToUse), null, false, null);
if (result.isExists()) {
// if the queue exists and we're using FQQN then just ignore the routing-type
routingTypeToUse = null;
}
matchingAnycastQueue = getMatchingQueue(queueNameToUse, addressToUse, routingTypeToUse, null, false);
if (matchingAnycastQueue != null) {
queue = matchingAnycastQueue;
} else {
throw ActiveMQAMQPProtocolMessageBundle.BUNDLE.sourceAddressDoesntExist();
}
} else {
SimpleString matchingAnycastQueue = sessionSPI.getMatchingQueue(addressToUse, RoutingType.ANYCAST);
if (matchingAnycastQueue != null) {
queue = matchingAnycastQueue;
} else {
queue = addressToUse;
}
}
}
if (queue == null) {
throw ActiveMQAMQPProtocolMessageBundle.BUNDLE.sourceAddressNotSet();
}
try {
if (!sessionSPI.queueQuery(queue, routingTypeToUse, !multicast).isExists()) {
throw ActiveMQAMQPProtocolMessageBundle.BUNDLE.sourceAddressDoesntExist();
}
} catch (ActiveMQAMQPNotFoundException e) {
throw e;
} catch (Exception e) {
throw new ActiveMQAMQPInternalErrorException(e.getMessage(), e);
}
}
// Detect if sender is in pre-settle mode.
preSettle = sender.getRemoteSenderSettleMode() == SenderSettleMode.SETTLED;
// We need to update the source with any filters we support otherwise the client
// is free to consider the attach as having failed if we don't send back what we
// do support or if we send something we don't support the client won't know we
// have not honored what it asked for.
source.setFilter(supportedFilters.isEmpty() ? null : supportedFilters);
boolean browseOnly = !multicast && source.getDistributionMode() != null && source.getDistributionMode().equals(COPY);
return (Consumer) sessionSPI.createSender(senderContext, queue, multicast ? null : selector, browseOnly);
}