merlimat commented on a change in pull request #1996: Cpp client: add
multiTopicsConsumer
URL: https://github.com/apache/incubator-pulsar/pull/1996#discussion_r197870080
##########
File path: pulsar-client-cpp/lib/ClientImpl.cc
##########
@@ -209,6 +211,42 @@ void ClientImpl::handleReaderMetadataLookup(const Result
result, const LookupDat
consumers_.push_back(reader->getConsumer());
}
+void ClientImpl::subscribeAsync(const std::vector<std::string>& topics, const
std::string& consumerName,
+ const ConsumerConfiguration& conf,
SubscribeCallback callback) {
+ TopicNamePtr topicNamePtr;
+ {
+ Lock lock(mutex_);
+ if (state_ != Open) {
+ lock.unlock();
+ callback(ResultAlreadyClosed, Consumer());
+ return;
+ } else {
+ lock.unlock();
+ if (!topics.empty() && !(topicNamePtr =
MultiTopicsConsumerImpl::topicNamesValid(topics))) {
+ callback(ResultInvalidTopicName, Consumer());
+ return;
+ }
+ }
+ }
+
+ if (topicNamePtr) {
+ std::string randomName = generateRandomName();
+ std::stringstream consumerTopicNameStream;
+ consumerTopicNameStream << topicNamePtr->toString() <<
"-TopicsConsumerFakeName-" << randomName;
+ topicNamePtr = TopicName::get(consumerTopicNameStream.str());
+ }
+
+ ConsumerImplBasePtr consumer = boost::make_shared<MultiTopicsConsumerImpl>(
+ shared_from_this(), topics, consumerName, topicNamePtr, conf,
lookupServicePtr_);
+
+ consumer->getConsumerCreatedFuture().addListener(
+ boost::bind(&ClientImpl::handleConsumerCreated, shared_from_this(),
_1, _2, callback, consumer));
+ Lock lock(mutex_);
Review comment:
Since we're acquiring the mutex above as well, I'd rather have a single
continuous section with the mutex
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