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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/ReplicaSessionManager.h>
#include <IceGrid/TraceLevels.h>
#include <IceGrid/Database.h>
using namespace std;
using namespace IceGrid;
class MasterRegistryObserverI : public RegistryObserver
{
public:
MasterRegistryObserverI(const DatabasePtr& database) : _database(database)
{
}
virtual void
init(int serial,
const ApplicationDescriptorSeq& applications,
const AdapterInfoSeq& adapters,
const ObjectInfoSeq& objects,
const Ice::Current&)
{
_database->initReplica(serial, applications, adapters, objects);
}
virtual void
applicationAdded(int serial, const ApplicationDescriptor& application, const Ice::Current&)
{
_database->addApplicationDescriptor(0, application, serial);
}
virtual void
applicationRemoved(int serial, const std::string& name, const Ice::Current&)
{
_database->removeApplicationDescriptor(0, name, serial);
}
virtual void
applicationUpdated(int serial, const ApplicationUpdateDescriptor& update, const Ice::Current&)
{
_database->updateApplicationDescriptor(0, update, serial);
}
virtual void
adapterAdded(int serial, const AdapterInfo& info, const Ice::Current&)
{
_database->setAdapterDirectProxy(info.id, info.replicaGroupId, info.proxy, serial);
}
virtual void
adapterUpdated(int serial, const AdapterInfo& info, const Ice::Current&)
{
_database->setAdapterDirectProxy(info.id, info.replicaGroupId, info.proxy, serial);
}
virtual void
adapterRemoved(int serial, const std::string& id, const Ice::Current&)
{
_database->setAdapterDirectProxy(id, "", 0, serial);
}
virtual void
objectAdded(int serial, const ObjectInfo& info, const Ice::Current&)
{
_database->addObject(info, false, serial);
}
virtual void
objectUpdated(int serial, const ObjectInfo& info, const Ice::Current&)
{
_database->updateObject(info.proxy, serial);
}
virtual void
objectRemoved(int serial, const Ice::Identity& id, const Ice::Current&)
{
_database->removeObject(id, serial);
}
private:
const DatabasePtr _database;
};
ReplicaSessionKeepAliveThread::ReplicaSessionKeepAliveThread(const std::string& name,
const InternalRegistryPrx& master,
const InternalRegistryPrx& replica,
const ReplicaInfo& info,
const DatabasePtr& database) :
_name(name),
_master(master),
_replica(replica),
_info(info),
_database(database),
_timeout(IceUtil::Time::seconds(5)),
_shutdown(false)
{
}
void
ReplicaSessionKeepAliveThread::run()
{
//
// Keep alive the session.
//
ReplicaSessionPrx session;
while(true)
{
keepAlive(session);
{
Lock sync(*this);
session = _session;
if(!_shutdown)
{
timedWait(_timeout);
}
if(_shutdown)
{
break;
}
}
}
//
// Destroy the session.
//
if(session)
{
try
{
session->destroy();
}
catch(const Ice::LocalException&)
{
//
// TODO: XXX: TRACE?
//
// ostringstream os;
// os << "couldn't contact the IceGrid registry to destroy the node session:\n" << ex;
// _database->getTraceLevels()->logger->warning(os.str());
}
}
}
void
ReplicaSessionKeepAliveThread::waitForCreate()
{
Lock sync(*this);
while(!_session)
{
wait();
}
}
void
ReplicaSessionKeepAliveThread::terminate()
{
Lock sync(*this);
_shutdown = true;
notifyAll();
}
void
ReplicaSessionKeepAliveThread::keepAlive(const ReplicaSessionPrx& session)
{
if(session)
{
try
{
session->keepAlive();
return; // We're done!
}
catch(const Ice::LocalException&)
{
}
}
try
{
ReplicaSessionPrx newSession = _master->registerReplica(_name, _replica, _info);
int timeout = newSession->getTimeout();
{
Lock sync(*this);
if(timeout > 0)
{
_timeout = IceUtil::Time::seconds(timeout);
}
_session = newSession;
notifyAll();
}
}
catch(const ReplicaActiveException&)
{
_database->getTraceLevels()->logger->error("a replica with the same name is already registered and active");
}
catch(const Ice::LocalException&)
{
//
// TODO: FIX THIS SHOULD BE A TRACE
//
// ostringstream os;
// os << "couldn't contact the IceGrid registry:\n" << ex;
// _database->getTraceLevels()->logger->warning(os.str());
}
}
ReplicaSessionManager::ReplicaSessionManager()
{
}
void
ReplicaSessionManager::create(const string& name,
const DatabasePtr& database,
const InternalRegistryPrx& replica,
const Ice::ObjectAdapterPtr& clientAdapter,
const Ice::ObjectAdapterPtr& serverAdapter)
{
Ice::CommunicatorPtr communicator = database->getCommunicator();
Ice::PropertiesPtr properties = communicator->getProperties();
Ice::LocatorPrx locator = communicator->getDefaultLocator();
assert(locator);
string instanceName = locator->ice_getIdentity().category;
InternalRegistryPrx master =
InternalRegistryPrx::uncheckedCast(communicator->stringToProxy(instanceName + "/InternalRegistry"));
Ice::ObjectPrx observer = database->getInternalAdapter()->addWithUUID(new MasterRegistryObserverI(database));
ReplicaInfo info;
info.clientProxy = clientAdapter->createDirectProxy(communicator->stringToIdentity("dummy"));
info.serverProxy = serverAdapter->createDirectProxy(communicator->stringToIdentity("dummy"));
info.observer = RegistryObserverPrx::uncheckedCast(observer);
_session = new ReplicaSessionKeepAliveThread(name, master, replica, info, database);
_session->start();
}
void
ReplicaSessionManager::destroy()
{
if(_session)
{
_session->terminate();
_session->getThreadControl().join();
}
}
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