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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/Communicator.h>
#include <Ice/LocalException.h>
#include <Ice/LoggerUtil.h>
#include <IceGrid/ReplicaCache.h>
#include <IceGrid/ReplicaSessionI.h>
#include <IceGrid/Topics.h>
using namespace std;
using namespace IceGrid;
ReplicaCache::ReplicaCache(const Ice::CommunicatorPtr& communicator, const IceStorm::TopicManagerPrx& topicManager) :
_communicator(communicator)
{
IceStorm::TopicPrx t;
try
{
t = topicManager->create("NodeNotifier");
}
catch(const IceStorm::TopicExists&)
{
t = topicManager->retrieve("NodeNotifier");
}
const_cast<IceStorm::TopicPrx&>(_topic) = t;
const_cast<NodePrx&>(_nodes) = NodePrx::uncheckedCast(_topic->getPublisher());
}
void
ReplicaCache::destroy()
{
_entries.clear();
}
ReplicaEntryPtr
ReplicaCache::add(const string& name, const ReplicaSessionIPtr& session)
{
ReplicaEntryPtr entry;
{
Lock sync(*this);
if(getImpl(name))
{
throw ReplicaActiveException();
}
if(_traceLevels && _traceLevels->replica > 0)
{
Ice::Trace out(_traceLevels->logger, _traceLevels->replicaCat);
out << "replica `" << name << "' up";
}
entry = addImpl(name, new ReplicaEntry(name, session));
}
try
{
_nodes->replicaAdded(session->getInternalRegistry());
}
catch(const Ice::LocalException&)
{
// TODO: XXX
}
return entry;
}
ReplicaEntryPtr
ReplicaCache::remove(const string& name)
{
ReplicaEntryPtr entry;
{
Lock sync(*this);
entry = removeImpl(name);
assert(entry);
if(_traceLevels && _traceLevels->replica > 0)
{
Ice::Trace out(_traceLevels->logger, _traceLevels->replicaCat);
out << "replica `" << name << "' down";
}
}
try
{
_nodes->replicaRemoved(entry->getSession()->getInternalRegistry());
}
catch(const Ice::LocalException&)
{
// TODO: XXX
}
return entry;
}
ReplicaEntryPtr
ReplicaCache::get(const string& name) const
{
Lock sync(*this);
ReplicaEntryPtr entry = getImpl(name);
if(!entry)
{
RegistryNotExistException ex;
ex.name = name;
throw ex;
}
return entry;
}
void
ReplicaCache::nodeAdded(const NodePrx& node)
{
IceStorm::QoS qos;
qos["reliability"] = "twoway ordered";
try
{
_topic->subscribe(qos, node);
}
catch(const Ice::LocalException&)
{
// TODO: XXX
}
}
void
ReplicaCache::nodeRemoved(const NodePrx& node)
{
try
{
_topic->unsubscribe(node);
}
catch(const Ice::ConnectionRefusedException&)
{
// The replica is being shutdown.
}
catch(const Ice::LocalException&)
{
// TODO: XXX
}
}
Ice::ObjectPrx
ReplicaCache::getEndpoints(const string& name, const Ice::ObjectPrx& proxy) const
{
Ice::EndpointSeq endpoints;
if(proxy)
{
Ice::EndpointSeq endpts = proxy->ice_getEndpoints();
endpoints.insert(endpoints.end(), endpts.begin(), endpts.end());
}
for(map<string, ReplicaEntryPtr>::const_iterator p = _entries.begin(); p != _entries.end(); ++p)
{
Ice::ObjectPrx prx = p->second->getSession()->getEndpoint(name);
if(prx)
{
Ice::EndpointSeq endpts = prx->ice_getEndpoints();
endpoints.insert(endpoints.end(), endpts.begin(), endpts.end());
}
}
return _communicator->stringToProxy("dummy")->ice_endpoints(endpoints);
}
ReplicaEntry::ReplicaEntry(const std::string& name, const ReplicaSessionIPtr& session) :
_name(name),
_session(session)
{
}
const ReplicaSessionIPtr&
ReplicaEntry::getSession() const
{
return _session;
}
RegistryInfo
ReplicaEntry::getInfo() const
{
return _session->getInfo();
}
InternalRegistryPrx
ReplicaEntry::getProxy() const
{
return _session->getInternalRegistry();
}
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