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// **********************************************************************
//
// Copyright (c) 2003-2006 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#include <Ice/Ice.h>
#include <IceStorm/SubscriberFactory.h>
#include <IceStorm/LinkSubscriber.h>
#include <IceStorm/OnewaySubscriber.h>
#include <IceStorm/OnewayBatchSubscriber.h>
#include <IceStorm/Flusher.h>
#include <IceStorm/TraceLevels.h>
#include <IceStorm/LinkProxy.h>
#include <IceStorm/OnewayProxy.h>
#include <IceStorm/TwowayProxy.h>
using namespace std;
using namespace IceStorm;
SubscriberFactory::SubscriberFactory(const Ice::CommunicatorPtr& communicator,
const TraceLevelsPtr& traceLevels,
const FlusherPtr& flusher) :
_communicator(communicator),
_traceLevels(traceLevels),
_flusher(flusher)
{
}
SubscriberPtr
SubscriberFactory::createLinkSubscriber(const TopicLinkPrx& obj, Ice::Int cost)
{
IceUtil::RecMutex::Lock sync(_proxiesMutex);
//
// Check if a queued proxy already exists, or create one if
// necessary.
//
QueuedProxyPtr proxy;
map<Ice::ObjectPrx, ProxyInfo>::iterator p = _proxies.find(obj);
if(p != _proxies.end())
{
proxy = p->second.proxy;
}
else
{
proxy = new LinkProxy(obj);
ProxyInfo info;
info.proxy = proxy;
info.count = 0;
_proxies.insert(pair<Ice::ObjectPrx, ProxyInfo>(obj, info));
}
return new LinkSubscriber(this, _communicator, _traceLevels, proxy, cost);
}
SubscriberPtr
SubscriberFactory::createSubscriber(const QoS& qos, const Ice::ObjectPrx& obj)
{
IceUtil::RecMutex::Lock sync(_proxiesMutex);
//
// Determine the requested reliability characteristics
//
Ice::ObjectPrx newObj;
QoS::const_iterator i = qos.find("reliability");
string reliability;
if(i == qos.end())
{
reliability = "oneway";
}
else
{
reliability = i->second;
}
if(reliability == "batch")
{
if(obj->ice_isDatagram())
{
newObj = obj->ice_batchDatagram();
}
else
{
newObj = obj->ice_batchOneway();
}
}
else if(reliability == "twoway" || reliability == "twoway ordered")
{
newObj = obj->ice_twoway();
}
else // reliability == "oneway"
{
if(reliability != "oneway")
{
if(_traceLevels->subscriber > 0)
{
Ice::Trace out(_traceLevels->logger, _traceLevels->subscriberCat);
out << reliability <<" mode not understood.";
}
}
if(obj->ice_isDatagram())
{
newObj = obj;
}
else
{
newObj = obj->ice_oneway();
}
}
//
// Check if a queued proxy already exists, or create one if necessary.
//
QueuedProxyPtr proxy;
map<Ice::ObjectPrx, ProxyInfo>::iterator p = _proxies.find(newObj);
if(p != _proxies.end())
{
proxy = p->second.proxy;
}
else
{
if(reliability == "twoway")
{
proxy = new UnorderedTwowayProxy(newObj);
}
else if(reliability == "twoway ordered")
{
proxy = new OrderedTwowayProxy(newObj);
}
else
{
proxy = new OnewayProxy(newObj);
}
ProxyInfo info;
info.proxy = proxy;
info.count = 0;
_proxies.insert(pair<Ice::ObjectPrx, ProxyInfo>(newObj, info));
}
if(reliability == "batch")
{
return new OnewayBatchSubscriber(this, _communicator, _traceLevels, _flusher, proxy);
}
else // oneway or twoway
{
//
// TODO: rename OnewaySubscriber into something more approriate, ObjectPrxSubscriber
// for example (there's also LinkSubscriber).
//
return new OnewaySubscriber(this, _traceLevels, proxy);
}
}
void
SubscriberFactory::incProxyUsageCount(const QueuedProxyPtr& proxy)
{
IceUtil::RecMutex::Lock sync(_proxiesMutex);
map<Ice::ObjectPrx, ProxyInfo>::iterator p = _proxies.find(proxy->proxy());
assert(p->second.count >= 0);
p->second.count++;
}
void
SubscriberFactory::decProxyUsageCount(const QueuedProxyPtr& proxy)
{
IceUtil::RecMutex::Lock sync(_proxiesMutex);
map<Ice::ObjectPrx, ProxyInfo>::iterator p = _proxies.find(proxy->proxy());
assert(p->second.count > 0);
p->second.count--;
if(p->second.count == 0)
{
_proxies.erase(p);
}
}
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