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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 <IceGrid/ReplicaSessionI.h>
#include <IceGrid/Database.h>
#include <IceGrid/WellKnownObjectsManager.h>
#include <IceGrid/PlatformInfo.h>
using namespace std;
using namespace IceGrid;
namespace IceGrid
{
static bool
operator==(const ObjectInfo& info, const Ice::Identity& id)
{
return info.proxy->ice_getIdentity() == id;
}
}
ReplicaSessionI::ReplicaSessionI(const DatabasePtr& database,
const WellKnownObjectsManagerPtr& wellKnownObjects,
const InternalReplicaInfoPtr& info,
const InternalRegistryPrx& proxy,
int timeout) :
_database(database),
_wellKnownObjects(wellKnownObjects),
_traceLevels(database->getTraceLevels()),
_internalRegistry(InternalRegistryPrx::uncheckedCast(proxy->ice_timeout(timeout * 1000))),
_info(info),
_timeout(timeout),
_timestamp(IceUtil::Time::now()),
_destroy(false)
{
__setNoDelete(true);
try
{
_database->getReplicaCache().add(info->name, this);
ObserverTopicPtr obsv = _database->getObserverTopic(RegistryObserverTopicName);
RegistryObserverTopicPtr::dynamicCast(obsv)->registryUp(toRegistryInfo(_info));
Ice::ObjectPrx prx = _database->getInternalAdapter()->addWithUUID(this)->ice_timeout(timeout * 1000);
_proxy = ReplicaSessionPrx::uncheckedCast(prx);
}
catch(...)
{
__setNoDelete(false);
throw;
}
__setNoDelete(false);
}
void
ReplicaSessionI::keepAlive(const Ice::Current& current)
{
Lock sync(*this);
if(_destroy)
{
throw Ice::ObjectNotExistException(__FILE__, __LINE__);
}
_timestamp = IceUtil::Time::now();
if(_traceLevels->replica > 2)
{
Ice::Trace out(_traceLevels->logger, _traceLevels->replicaCat);
out << "replica `" << _info->name << "' keep alive ";
}
}
int
ReplicaSessionI::getTimeout(const Ice::Current& current) const
{
return _timeout;
}
void
ReplicaSessionI::setDatabaseObserver(const DatabaseObserverPrx& observer, const Ice::Current& current)
{
Lock sync(*this);
if(_destroy)
{
throw Ice::ObjectNotExistException(__FILE__, __LINE__);
}
_observer = observer;
_database->getObserverTopic(ApplicationObserverTopicName)->subscribe(_observer, _info->name);
_database->getObserverTopic(AdapterObserverTopicName)->subscribe(_observer, _info->name);
_database->getObserverTopic(ObjectObserverTopicName)->subscribe(_observer, _info->name);
}
void
ReplicaSessionI::setEndpoints(const StringObjectProxyDict& endpoints, const Ice::Current& current)
{
{
Lock sync(*this);
if(_destroy)
{
throw Ice::ObjectNotExistException(__FILE__, __LINE__);
}
_replicaEndpoints = endpoints;
}
_wellKnownObjects->updateReplicatedWellKnownObjects();
}
void
ReplicaSessionI::registerWellKnownObjects(const ObjectInfoSeq& objects, const Ice::Current& current)
{
int serial;
{
Lock sync(*this);
if(_destroy)
{
throw Ice::ObjectNotExistException(__FILE__, __LINE__);
}
_replicaWellKnownObjects = objects;
serial = _database->addOrUpdateObjectsInDatabase(objects);
}
//
// We wait for the replica to receive the database replication
// updates. This is to ensure that the replica well-known objects
// are correctly setup when the replica starts accepting requests
// from clients (if the replica is being started).
//
_database->getObserverTopic(ObjectObserverTopicName)->waitForSyncedSubscribers(serial, _info->name);
}
void
ReplicaSessionI::setAdapterDirectProxy(const string& adapterId,
const string& replicaGroupId,
const Ice::ObjectPrx& proxy,
const Ice::Current&)
{
if(_database->getCommunicator()->getProperties()->getPropertyAsInt("IceGrid.Registry.DynamicRegistration") <= 0)
{
throw AdapterNotExistException();
}
_database->setAdapterDirectProxy(adapterId, replicaGroupId, proxy);
}
void
ReplicaSessionI::receivedUpdate(TopicName topicName, int serial, const string& failure, const Ice::Current&)
{
ObserverTopicPtr topic = _database->getObserverTopic(topicName);
if(topic)
{
topic->receivedUpdate(_info->name, serial, failure);
}
}
void
ReplicaSessionI::destroy(const Ice::Current&)
{
destroyImpl(false);
}
IceUtil::Time
ReplicaSessionI::timestamp() const
{
Lock sync(*this);
if(_destroy)
{
throw Ice::ObjectNotExistException(__FILE__, __LINE__);
}
return _timestamp;
}
void
ReplicaSessionI::shutdown()
{
destroyImpl(true);
}
const InternalRegistryPrx&
ReplicaSessionI::getInternalRegistry() const
{
return _internalRegistry;
}
const InternalReplicaInfoPtr&
ReplicaSessionI::getInfo() const
{
return _info;
}
ReplicaSessionPrx
ReplicaSessionI::getProxy() const
{
return _proxy;
}
Ice::ObjectPrx
ReplicaSessionI::getEndpoint(const std::string& name)
{
Lock sync(*this);
if(_destroy)
{
return 0;
}
return _replicaEndpoints[name];
}
bool
ReplicaSessionI::isDestroyed() const
{
Lock sync(*this);
return _destroy;
}
void
ReplicaSessionI::destroyImpl(bool shutdown)
{
{
Lock sync(*this);
if(_destroy)
{
throw Ice::ObjectNotExistException(__FILE__, __LINE__);
}
_destroy = true;
}
if(_observer)
{
_database->getObserverTopic(ApplicationObserverTopicName)->unsubscribe(_observer, _info->name);
_database->getObserverTopic(AdapterObserverTopicName)->unsubscribe(_observer, _info->name);
_database->getObserverTopic(ObjectObserverTopicName)->unsubscribe(_observer, _info->name);
}
if(!_replicaWellKnownObjects.empty())
{
if(shutdown) // Don't remove the replica proxy from the database if the registry is being shutdown.
{
ObjectInfoSeq::iterator p = find(_replicaWellKnownObjects.begin(), _replicaWellKnownObjects.end(),
_internalRegistry->ice_getIdentity());
if(p != _replicaWellKnownObjects.end())
{
_replicaWellKnownObjects.erase(p);
}
}
_database->removeObjectsInDatabase(_replicaWellKnownObjects);
}
if(!shutdown)
{
_wellKnownObjects->updateReplicatedWellKnownObjects(); // No need to update these if we're shutting down.
}
//
// Notify the observer that the registry is down.
//
ObserverTopicPtr obsv = _database->getObserverTopic(RegistryObserverTopicName);
RegistryObserverTopicPtr::dynamicCast(obsv)->registryDown(_info->name);
//
// Remove the replica from the cache. This must be done last. As
// soon as the replica is removed another session might be
// created.
//
_database->getReplicaCache().remove(_info->name, shutdown);
if(!shutdown)
{
try
{
_database->getInternalAdapter()->remove(_proxy->ice_getIdentity());
}
catch(const Ice::ObjectAdapterDeactivatedException&)
{
}
}
}
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