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// **********************************************************************
//
// Copyright (c) 2003-2005 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/ObserverSessionI.h>
#include <IceGrid/Database.h>
using namespace std;
using namespace IceGrid;
ObserverSessionI::ObserverSessionI(const string& userId,
const DatabasePtr& database,
RegistryObserverTopic& registryObserverTopic,
NodeObserverTopic& nodeObserverTopic,
int timeout) :
_userId(userId),
_timeout(timeout),
_traceLevels(database->getTraceLevels()),
_updating(false),
_destroyed(false),
_database(database),
_registryObserverTopic(registryObserverTopic),
_nodeObserverTopic(nodeObserverTopic)
{
if(_traceLevels && _traceLevels->session > 0)
{
Ice::Trace out(_traceLevels->logger, _traceLevels->sessionCat);
out << "observer session `" << _userId << "' created";
}
}
ObserverSessionI::~ObserverSessionI()
{
}
int
ObserverSessionI::getTimeout(const Ice::Current&) const
{
return _timeout;
}
QueryPrx
ObserverSessionI::getQuery(const Ice::Current& current) const
{
return QueryPrx::uncheckedCast(
current.adapter->getCommunicator()->stringToProxy(_database->getInstanceName() + "/Query"));
}
AdminPrx
ObserverSessionI::getAdmin(const Ice::Current& current) const
{
return AdminPrx::uncheckedCast(
current.adapter->getCommunicator()->stringToProxy(_database->getInstanceName() + "/Admin"));
}
void
ObserverSessionI::setObservers(const RegistryObserverPrx& registryObserver,
const NodeObserverPrx& nodeObserver,
const Ice::Current& current)
{
Lock sync(*this);
if(_destroyed)
{
Ice::ObjectNotExistException ex(__FILE__, __LINE__);
ex.id = current.id;
throw ex;
}
_registryObserver = RegistryObserverPrx::uncheckedCast(registryObserver->ice_timeout(_timeout * 1000));
_nodeObserver = NodeObserverPrx::uncheckedCast(nodeObserver->ice_timeout(_timeout * 1000));
//
// Subscribe to the topics.
//
_registryObserverTopic.subscribe(_registryObserver);
_nodeObserverTopic.subscribe(_nodeObserver);
}
void
ObserverSessionI::setObserversByIdentity(const Ice::Identity& registryObserver,
const Ice::Identity& nodeObserver,
const Ice::Current& current)
{
Lock sync(*this);
if(_destroyed)
{
Ice::ObjectNotExistException ex(__FILE__, __LINE__);
ex.id = current.id;
throw ex;
}
_registryObserver = RegistryObserverPrx::uncheckedCast(current.con->createProxy(registryObserver));
_nodeObserver = NodeObserverPrx::uncheckedCast(current.con->createProxy(nodeObserver));
//
// Subscribe to the topics.
//
_registryObserverTopic.subscribe(_registryObserver);
_nodeObserverTopic.subscribe(_nodeObserver);
}
int
ObserverSessionI::startUpdate(const Ice::Current& current)
{
Lock sync(*this);
if(_destroyed)
{
Ice::ObjectNotExistException ex(__FILE__, __LINE__);
ex.id = current.id;
throw ex;
}
int serial = _database->lock(this, _userId);
_updating = true;
return serial;
}
void
ObserverSessionI::addApplication(const ApplicationDescriptor& app, const Ice::Current& current)
{
Lock sync(*this);
if(_destroyed)
{
Ice::ObjectNotExistException ex(__FILE__, __LINE__);
ex.id = current.id;
throw ex;
}
if(!_updating)
{
throw AccessDeniedException();
}
_database->addApplicationDescriptor(this, app);
}
void
ObserverSessionI::updateApplication(const ApplicationUpdateDescriptor& update, const Ice::Current& current)
{
Lock sync(*this);
if(_destroyed)
{
Ice::ObjectNotExistException ex(__FILE__, __LINE__);
ex.id = current.id;
throw ex;
}
if(!_updating)
{
throw AccessDeniedException();
}
_database->updateApplicationDescriptor(this, update);
}
void
ObserverSessionI::syncApplication(const ApplicationDescriptor& app, const Ice::Current& current)
{
Lock sync(*this);
if(_destroyed)
{
Ice::ObjectNotExistException ex(__FILE__, __LINE__);
ex.id = current.id;
throw ex;
}
if(!_updating)
{
throw AccessDeniedException();
}
_database->syncApplicationDescriptor(this, app);
}
void
ObserverSessionI::removeApplication(const string& name, const Ice::Current& current)
{
Lock sync(*this);
if(_destroyed)
{
Ice::ObjectNotExistException ex(__FILE__, __LINE__);
ex.id = current.id;
throw ex;
}
if(!_updating)
{
throw AccessDeniedException();
}
_database->removeApplicationDescriptor(this, name);
}
void
ObserverSessionI::finishUpdate(const Ice::Current& current)
{
Lock sync(*this);
if(_destroyed)
{
Ice::ObjectNotExistException ex(__FILE__, __LINE__);
ex.id = current.id;
throw ex;
}
if(!_updating)
{
throw AccessDeniedException();
}
_database->unlock(this);
_updating = false;
}
void
ObserverSessionI::destroy(const Ice::Current& current)
{
Lock sync(*this);
if(_destroyed)
{
Ice::ObjectNotExistException ex(__FILE__, __LINE__);
ex.id = current.id;
throw ex;
}
if(_updating)
{
_database->unlock(this);
_updating = false;
}
_destroyed = true;
//
// Unsubscribe from the topics.
//
_registryObserverTopic.unsubscribe(_registryObserver);
_nodeObserverTopic.unsubscribe(_nodeObserver);
if(_traceLevels && _traceLevels->session > 0)
{
Ice::Trace out(_traceLevels->logger, _traceLevels->sessionCat);
out << "observer session `" << _userId << "' destroyed";
}
current.adapter->remove(current.id);
}
LocalObserverSessionI::LocalObserverSessionI(const string& userId,
const DatabasePtr& database,
RegistryObserverTopic& registryObserverTopic,
NodeObserverTopic& nodeObserverTopic,
int timeout) :
ObserverSessionI(userId, database, registryObserverTopic, nodeObserverTopic, timeout),
_timestamp(IceUtil::Time::now())
{
}
void
LocalObserverSessionI::keepAlive(const Ice::Current& current)
{
Lock sync(*this);
if(_destroyed)
{
Ice::ObjectNotExistException ex(__FILE__, __LINE__);
ex.id = current.id;
throw ex;
}
_timestamp = IceUtil::Time::now();
if(_traceLevels->session > 1)
{
Ice::Trace out(_traceLevels->logger, _traceLevels->sessionCat);
out << "session `" << _userId << "' keep alive";
}
}
IceUtil::Time
LocalObserverSessionI::timestamp() const
{
Lock sync(*this);
return _timestamp;
}
Glacier2ObserverSessionI::Glacier2ObserverSessionI(const string& userId,
const DatabasePtr& database,
RegistryObserverTopic& registryObserverTopic,
NodeObserverTopic& nodeObserverTopic,
int timeout) :
ObserverSessionI(userId, database, registryObserverTopic, nodeObserverTopic, timeout)
{
}
void
Glacier2ObserverSessionI::keepAlive(const Ice::Current&)
{
}
IceUtil::Time
Glacier2ObserverSessionI::timestamp() const
{
return IceUtil::Time();
}
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