TopicManagerImpl::TopicManagerImpl(const InstancePtr& instance) :
_instance(instance),
_connectionPool(instance->connectionPool())
{
try
{
__setNoDelete(true);
if(_instance->observer())
{
_instance->observer()->setObserverUpdater(this);
}
// TODO: If we want to improve the performance of the
// non-replicated case we could allocate a null-topic manager impl
// here.
_managerImpl = new TopicManagerI(instance, this);
Ice::PropertiesPtr properties = _instance->communicator()->getProperties();
// If there is no node adapter we don't need to start the
// observer, nor sync since we're not replicating.
if(_instance->nodeAdapter())
{
_observerImpl = new ReplicaObserverI(instance, this);
_observer = _instance->nodeAdapter()->addWithUUID(_observerImpl);
_syncImpl = new TopicManagerSyncI(this);
_sync = _instance->nodeAdapter()->addWithUUID(_syncImpl);
}
DatabaseConnectionPtr connection = _connectionPool->newConnection();
// Ensure that the llu counter is present in the log.
LLUWrapperPtr lluWrapper = _connectionPool->getLLU(connection);
LogUpdate empty = {0, 0};
lluWrapper->put(empty);
// Recreate each of the topics.
SubscribersWrapperPtr subscribersWrapper = _connectionPool->getSubscribers(connection);
map<SubscriberRecordKey, SubscriberRecord> subscriberMap = subscribersWrapper->getMap();
map<SubscriberRecordKey, SubscriberRecord>::const_iterator p = subscriberMap.begin();
while(p != subscriberMap.end())
{
// This record has to be a place holder record, otherwise
// there is a database bug.
assert(p->first.id.name.empty() && p->first.id.category.empty());
Ice::Identity topic = p->first.topic;
// Skip the place holder.
++p;
SubscriberRecordSeq content;
while(p != subscriberMap.end() && p->first.topic == topic)
{
content.push_back(p->second);
++p;
}
string name = identityToTopicName(topic);
installTopic(name, topic, false, content);
}
}
catch(...)
{
shutdown();
__setNoDelete(false);
throw;
}
__setNoDelete(false);
}
TopicManagerImpl::TopicManagerImpl(const PersistentInstancePtr& instance) :
_instance(instance),
_lluMap(instance->lluMap()),
_subscriberMap(instance->subscriberMap())
{
try
{
__setNoDelete(true);
if(_instance->observer())
{
_instance->observer()->setObserverUpdater(this);
}
// TODO: If we want to improve the performance of the
// non-replicated case we could allocate a null-topic manager impl
// here.
_managerImpl = new TopicManagerI(instance, this);
// If there is no node adapter we don't need to start the
// observer, nor sync since we're not replicating.
if(_instance->nodeAdapter())
{
_observerImpl = new ReplicaObserverI(instance, this);
_observer = _instance->nodeAdapter()->addWithUUID(_observerImpl);
_syncImpl = new TopicManagerSyncI(this);
_sync = _instance->nodeAdapter()->addWithUUID(_syncImpl);
}
{
IceDB::ReadWriteTxn txn(_instance->dbEnv());
// Ensure that the llu counter is present in the log.
LogUpdate empty = {0, 0};
_instance->lluMap().put(txn, lluDbKey, empty);
// Recreate each of the topics.
SubscriberRecordKey k;
SubscriberRecord v;
SubscriberMapRWCursor cursor(_subscriberMap, txn);
if(cursor.get(k, v, MDB_FIRST))
{
bool moreTopics = false;
do
{
// This record has to be a place holder record, otherwise
// there is a database bug.
assert(k.id.name.empty() && k.id.category.empty());
Ice::Identity topic = k.topic;
bool moreTopics;
SubscriberRecordSeq content;
while((moreTopics = cursor.get(k, v, MDB_NEXT)) && k.topic == topic)
{
content.push_back(v);
}
string name = identityToTopicName(topic);
installTopic(name, topic, false, content);
} while(moreTopics);
}
txn.commit();
}
}
catch(...)
{
shutdown();
__setNoDelete(false);
throw;
}
__setNoDelete(false);
}
