SubscriberPtr
Subscriber::create(
const InstancePtr& instance,
const SubscriberRecord& rec)
{
if(rec.link)
{
return new SubscriberLink(instance, rec);
}
else
{
PerSubscriberPublisherIPtr per = new PerSubscriberPublisherI(instance);
Ice::Identity perId;
perId.category = instance->instanceName();
perId.name = "topic." + rec.topicName + ".publish." +
instance->communicator()->identityToString(rec.obj->ice_getIdentity());
Ice::ObjectPrx proxy = instance->publishAdapter()->add(per, perId);
TraceLevelsPtr traceLevels = instance->traceLevels();
SubscriberPtr subscriber;
try
{
int retryCount = 0;
QoS::const_iterator p = rec.theQoS.find("retryCount");
if(p != rec.theQoS.end())
{
retryCount = atoi(p->second.c_str());
}
string reliability;
p = rec.theQoS.find("reliability");
if(p != rec.theQoS.end())
{
reliability = p->second;
}
if(!reliability.empty() && reliability != "ordered")
{
throw BadQoS("invalid reliability: " + reliability);
}
//
// Override the timeout.
//
Ice::ObjectPrx newObj;
try
{
newObj = rec.obj->ice_timeout(instance->sendTimeout());
}
catch(const Ice::FixedProxyException&)
{
//
// In the event IceStorm is collocated this could be a
// fixed proxy in which case its not possible to set the
// timeout.
//
newObj = rec.obj;
}
if(reliability == "ordered")
{
if(!newObj->ice_isTwoway())
{
throw BadQoS("ordered reliability requires a twoway proxy");
}
subscriber = new SubscriberTwoway(instance, rec, proxy, retryCount, 1, newObj);
}
else if(newObj->ice_isOneway() || newObj->ice_isDatagram())
{
if(retryCount > 0)
{
throw BadQoS("non-zero retryCount QoS requires a twoway proxy");
}
subscriber = new SubscriberOneway(instance, rec, proxy, retryCount, newObj);
}
else if(newObj->ice_isBatchOneway() || newObj->ice_isBatchDatagram())
{
if(retryCount > 0)
{
throw BadQoS("non-zero retryCount QoS requires a twoway proxy");
}
subscriber = new SubscriberBatch(instance, rec, proxy, retryCount, newObj);
}
else //if(newObj->ice_isTwoway())
{
assert(newObj->ice_isTwoway());
subscriber = new SubscriberTwoway(instance, rec, proxy, retryCount, 5, newObj);
}
per->setSubscriber(subscriber);
}
catch(const Ice::Exception&)
{
instance->publishAdapter()->remove(proxy->ice_getIdentity());
throw;
}
return subscriber;
}
}
