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// **********************************************************************
//
// Copyright (c) 2003 - 2004
// ZeroC, Inc.
// North Palm Beach, FL, USA
//
// 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 <IcePack/ServerAdapterI.h>
#include <IcePack/ServerFactory.h>
#include <IcePack/TraceLevels.h>
#include <IcePack/WaitQueue.h>
using namespace std;
using namespace IcePack;
namespace IcePack
{
class WaitForAdapterActivation : public WaitItem
{
public:
WaitForAdapterActivation(const ServerAdapterPtr& adapter,
const TraceLevelsPtr traceLevels,
const AMD_Adapter_getDirectProxyPtr& cb) :
WaitItem(adapter),
_adapter(adapter),
_traceLevels(traceLevels),
_cb(cb)
{
}
virtual void execute()
{
_adapter->getDirectProxy_async(_cb, false);
}
virtual void expired(bool destroyed)
{
if(_traceLevels->adapter > 1)
{
Ice::Trace out(_traceLevels->logger, _traceLevels->adapterCat);
out << "server adapter `" << _adapter->id << "' activation timed out";
}
_cb->ice_response(0);
}
private:
ServerAdapterPtr _adapter;
TraceLevelsPtr _traceLevels;
AMD_Adapter_getDirectProxyPtr _cb;
};
}
IcePack::ServerAdapterI::ServerAdapterI(const ServerFactoryPtr& factory, const TraceLevelsPtr& traceLevels,
Ice::Int waitTime) :
_factory(factory),
_traceLevels(traceLevels),
_waitTime(IceUtil::Time::seconds(waitTime))
{
}
IcePack::ServerAdapterI::~ServerAdapterI()
{
}
void
IcePack::ServerAdapterI::getDirectProxy_async(const AMD_Adapter_getDirectProxyPtr& cb,
bool activate,
const Ice::Current& current)
{
{
::IceUtil::Mutex::Lock sync(*this);
if(_proxy || !activate)
{
//
// Return the adapter direct proxy.
//
cb->ice_response(_proxy);
return;
}
if(_traceLevels->adapter > 2)
{
Ice::Trace out(_traceLevels->logger, _traceLevels->adapterCat);
out << "waiting for activation of server adapter `" << id << "'";
}
}
//
// Try to start the server. Note that we start the server outside
// the synchronization block since start() can block and callback
// on this adapter (when the server is deactivating for example).
//
try
{
if(svr->start(OnDemand))
{
//
// Now that the server is activated, wait for the adapter
// direct proxy to be set.
//
::IceUtil::Mutex::Lock sync(*this);
if(!_proxy)
{
_factory->getWaitQueue()->add(new WaitForAdapterActivation(this, _traceLevels, cb), _waitTime);
return;
}
}
}
catch(const Ice::ObjectNotExistException&)
{
//
// The server associated to this adapter doesn't exist
// anymore. Somehow the database is inconsistent if this
// happens. The best thing to do is to destroy the adapter
// and throw an ObjectNotExist exception.
//
destroy(current);
Ice::ObjectNotExistException ex(__FILE__,__LINE__);
ex.id = current.id;
throw ex;
}
//
// The server couldn't be activated, trace and return the current
// adapter proxy.
//
{
::IceUtil::Mutex::Lock sync(*this);
if(_traceLevels->adapter > 1)
{
Ice::Trace out(_traceLevels->logger, _traceLevels->adapterCat);
out << "server adapter `" << id << "' activation failed, couldn't start the server";
}
cb->ice_response(_proxy);
}
}
void
IcePack::ServerAdapterI::setDirectProxy(const Ice::ObjectPrx& prx, const Ice::Current&)
{
::IceUtil::Mutex::Lock sync(*this);
//
// If the adapter proxy is not null the given proxy can only be
// null. We don't allow to overide an existing proxy by another
// non null proxy if the server is active.
//
if(prx && _proxy)
{
if(svr->getState() == Active)
{
throw AdapterActiveException();
}
}
_proxy = prx;
_notified = true;
if(_traceLevels->adapter > 1)
{
Ice::Trace out(_traceLevels->logger, _traceLevels->adapterCat);
out << "server adapter `" << id << "' " << (_proxy ? "activated" : "deactivated");
}
_factory->getWaitQueue()->notifyAllWaitingOn(this);
}
void
IcePack::ServerAdapterI::destroy(const Ice::Current& current)
{
_factory->destroy(this, current.id);
}
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