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// **********************************************************************
//
// Copyright (c) 2003-2013 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.
//
// **********************************************************************
#ifdef _WIN32
# include <IceUtil/Config.h>
#endif
#include <ObjectFactory.h>
#include <Thread.h>
#include <Types.h>
#include <Util.h>
#include <Ice/LocalException.h>
using namespace std;
using namespace IcePy;
IcePy::ObjectFactory::ObjectFactory()
{
}
IcePy::ObjectFactory::~ObjectFactory()
{
assert(_factoryMap.empty());
}
Ice::ObjectPtr
IcePy::ObjectFactory::create(const string& id)
{
PyObject* factory = 0;
//
// Check if the application has registered a factory for this id.
//
{
Lock sync(*this);
FactoryMap::iterator p = _factoryMap.find(id);
if(p != _factoryMap.end())
{
factory = p->second;
}
}
//
// Get the type information.
//
ClassInfoPtr info;
if(id == Ice::Object::ice_staticId())
{
//
// When the ID is that of Ice::Object, it indicates that the stream has not
// found a factory and is providing us an opportunity to preserve the object.
//
info = lookupClassInfo("::Ice::UnknownSlicedObject");
}
else
{
info = lookupClassInfo(id);
}
if(!info)
{
return 0;
}
if(factory)
{
//
// Invoke the create method on the Python factory object.
//
PyObjectHandle obj = PyObject_CallMethod(factory, STRCAST("create"), STRCAST("s"), id.c_str());
if(!obj.get())
{
assert(PyErr_Occurred());
throw AbortMarshaling();
}
if(obj.get() == Py_None)
{
return 0;
}
return new ObjectReader(obj.get(), info);
}
//
// If the requested type is an abstract class, then we give up.
//
if(info->isAbstract)
{
return 0;
}
//
// Instantiate the object.
//
PyTypeObject* type = reinterpret_cast<PyTypeObject*>(info->pythonType.get());
PyObjectHandle args = PyTuple_New(0);
PyObjectHandle obj = type->tp_new(type, args.get(), 0);
if(!obj.get())
{
assert(PyErr_Occurred());
throw AbortMarshaling();
}
return new ObjectReader(obj.get(), info);
}
void
IcePy::ObjectFactory::destroy()
{
FactoryMap factories;
{
Lock sync(*this);
factories = _factoryMap;
_factoryMap.clear();
}
//
// We release the GIL before calling communicator->destroy(), so we must
// reacquire it before calling back into Python.
//
AdoptThread adoptThread;
for(FactoryMap::iterator p = factories.begin(); p != factories.end(); ++p)
{
//
// Invoke the destroy method on each registered Python factory.
//
PyObjectHandle obj = PyObject_CallMethod(p->second, STRCAST("destroy"), 0);
PyErr_Clear(); // Ignore errors.
Py_DECREF(p->second);
}
}
bool
IcePy::ObjectFactory::add(PyObject* factory, const string& id)
{
Lock sync(*this);
FactoryMap::iterator p = _factoryMap.find(id);
if(p != _factoryMap.end())
{
Ice::AlreadyRegisteredException ex(__FILE__, __LINE__);
ex.kindOfObject = "object factory";
ex.id = id;
setPythonException(ex);
return false;
}
_factoryMap.insert(FactoryMap::value_type(id, factory));
Py_INCREF(factory);
return true;
}
bool
IcePy::ObjectFactory::remove(const string& id)
{
Lock sync(*this);
FactoryMap::iterator p = _factoryMap.find(id);
if(p == _factoryMap.end())
{
Ice::NotRegisteredException ex(__FILE__, __LINE__);
ex.kindOfObject = "object factory";
ex.id = id;
setPythonException(ex);
return false;
}
Py_DECREF(p->second);
_factoryMap.erase(p);
return true;
}
PyObject*
IcePy::ObjectFactory::find(const string& id)
{
Lock sync(*this);
FactoryMap::iterator p = _factoryMap.find(id);
if(p == _factoryMap.end())
{
Py_INCREF(Py_None);
return Py_None;
}
Py_INCREF(p->second);
return p->second;
}
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