ObserverTopic::ObserverTopic(const IceStorm::TopicManagerPrx& topicManager, const string& name, Ice::Long dbSerial) :
_logger(topicManager->ice_getCommunicator()->getLogger()), _serial(0), _dbSerial(dbSerial)
{
for(int i = 0; i < static_cast<int>(sizeof(encodings) / sizeof(Ice::EncodingVersion)); ++i)
{
ostringstream os;
os << name << "-" << Ice::encodingVersionToString(encodings[i]);
IceStorm::TopicPrx t;
try
{
t = topicManager->create(os.str());
}
catch(const IceStorm::TopicExists&)
{
t = topicManager->retrieve(os.str());
}
//
// NOTE: collocation optimization needs to be turned on for the
// topic because the subscribe() method is given a fixed proxy
// which can't be marshalled.
//
_topics[encodings[i]] = t->ice_collocationOptimized(true);
_basePublishers.push_back(
t->getPublisher()->ice_collocationOptimized(false)->ice_encodingVersion(encodings[i]));
}
}
ReplicaCache::ReplicaCache(const Ice::CommunicatorPtr& communicator, const IceStorm::TopicManagerPrx& topicManager) :
_communicator(communicator)
{
IceStorm::TopicPrx t;
try
{
t = topicManager->create("ReplicaObserverTopic");
}
catch(const IceStorm::TopicExists&)
{
t = topicManager->retrieve("ReplicaObserverTopic");
}
const_cast<IceStorm::TopicPrx&>(_topic) = IceStorm::TopicPrx::uncheckedCast(t->ice_collocationOptimized(true));
const_cast<ReplicaObserverPrx&>(_observers) = ReplicaObserverPrx::uncheckedCast(_topic->getPublisher());
}