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// **********************************************************************
//
// Copyright (c) 2002
// ZeroC, Inc.
// Billerica, MA, USA
//
// All Rights Reserved.
//
// Ice is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License version 2 as published by
// the Free Software Foundation.
//
// **********************************************************************
#include <Ice/Ice.h>
#include <IcePack/LocatorI.h>
using namespace std;
using namespace IcePack;
namespace IcePack
{
//
// Callback from asynchronous call to adapter->getDirectProxy()
// invoked in LocatorI::findAdapterById_async().
//
class AMI_Adapter_getDirectProxyI : public AMI_Adapter_getDirectProxy
{
public:
AMI_Adapter_getDirectProxyI(const Ice::AMD_Locator_findAdapterByIdPtr& cb) : _cb(cb)
{
}
virtual void ice_response(const ::Ice::ObjectPrx& obj)
{
//
// Return the adapter dummy direct proxy.
//
_cb->ice_response(obj);
}
virtual void ice_exception(const ::Ice::Exception& ex)
{
try
{
ex.ice_throw();
}
catch(const Ice::ObjectNotExistException&)
{
//
// Expected if the adapter is destroyed.
//
_cb->ice_exception(Ice::AdapterNotFoundException());
return;
}
catch(const Ice::LocalException& ex)
{
//
// Expected if we couldn't contact the adapter object
// (possibly because the IcePack node is down). Return a
// null proxy in this case (the client will get empty
// endpoints and throw a NoEndpointException).
//
_cb->ice_response(0);
return;
}
catch(const Ice::Exception& ex)
{
//
// Rethrow unexpected exception.
//
_cb->ice_exception(ex);
return;
}
assert(false);
}
private:
Ice::AMD_Locator_findAdapterByIdPtr _cb;
};
//
// Callback from asynchrnous call to LocatorI::findAdapterById_async()
// invoked in LocatorI::findObjectById_async().
//
class AMD_Locator_findAdapterByIdI : public Ice::AMD_Locator_findAdapterById
{
public:
AMD_Locator_findAdapterByIdI(const Ice::AMD_Locator_findObjectByIdPtr& cb, const Ice::ObjectPrx& obj) :
_cb(cb),
_obj(obj)
{
}
virtual void ice_response(const ::Ice::ObjectPrx& obj)
{
//
// If the adapter dummy direct proxy is not null, return a
// proxy containing the identity we were looking for and the
// endpoints of the adapter.
//
// If null, return the proxy registered with the object
// registry.
//
if(obj)
{
_cb->ice_response(obj->ice_newIdentity(_obj->ice_getIdentity()));
}
else
{
_cb->ice_response(_obj);
}
}
virtual void ice_exception(const ::Ice::Exception& ex)
{
try
{
ex.ice_throw();
}
catch(Ice::AdapterNotFoundException&)
{
//
// We couldn't find the adapter, we ignore and return the
// original proxy containing the adapter id.
//
_cb->ice_response(_obj);
return;
}
catch(const Ice::Exception& ex)
{
//
// Rethrow unexpected exception.
//
_cb->ice_exception(ex);
return;
}
assert(false);
}
virtual void ice_exception(const std::exception& ex)
{
_cb->ice_exception(ex);
}
virtual void ice_exception()
{
_cb->ice_exception();
}
private:
Ice::AMD_Locator_findObjectByIdPtr _cb;
Ice::ObjectPrx _obj;
};
}
IcePack::LocatorI::LocatorI(const AdapterRegistryPtr& adapterRegistry,
const ObjectRegistryPtr& objectRegistry,
const Ice::LocatorRegistryPrx& locatorRegistry) :
_adapterRegistry(adapterRegistry),
_objectRegistry(objectRegistry),
_locatorRegistry(locatorRegistry)
{
}
//
// Find an object by identity. The object is searched in the object
// registry.
//
void
IcePack::LocatorI::findObjectById_async(const Ice::AMD_Locator_findObjectByIdPtr& response, const Ice::Identity& id,
const Ice::Current& current) const
{
ObjectDescription obj;
try
{
obj = _objectRegistry->getObjectDescription(id);
}
catch(const ObjectNotExistException&)
{
throw Ice::ObjectNotFoundException();
}
//
// OPTIMIZATION: If the object is registered with an adapter id,
// try to get the adapter direct proxy (which might caused the
// server activation). This will avoid the client to lookup for
// the adapter id endpoints.
//
if(!obj.adapterId.empty())
{
Ice::AMD_Locator_findAdapterByIdPtr cb = new AMD_Locator_findAdapterByIdI(response, obj.proxy);
findAdapterById_async(cb, obj.adapterId, current);
}
else
{
response->ice_response(obj.proxy);
}
}
//
// Find an adapter by identity. The object is searched in the adapter
// registry. If found, we try to get its direct proxy.
//
void
IcePack::LocatorI::findAdapterById_async(const Ice::AMD_Locator_findAdapterByIdPtr& response,
const string& id, const Ice::Current&) const
{
try
{
AMI_Adapter_getDirectProxyPtr cb = new AMI_Adapter_getDirectProxyI(response);
_adapterRegistry->findById(id)->getDirectProxy_async(cb, true);
}
catch(const AdapterNotExistException&)
{
throw Ice::AdapterNotFoundException();
}
}
Ice::LocatorRegistryPrx
IcePack::LocatorI::getRegistry(const Ice::Current&) const
{
return _locatorRegistry;
}
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