PyObject* Flow::create(PyTypeObject* pytype, PyObject* args, PyObject* kwds)
{
try
{
// Pick up the operation
PyObject* oper = PyDict_GetItemString(kwds, "operation");
if (!oper)
throw DataException("missing operation on Flow");
if (!PyObject_TypeCheck(oper, Operation::metadata->pythonClass))
throw DataException("flow operation must be of type operation");
else if (!static_cast<Operation*>(oper)->getLocation())
throw DataException("operation location is unspecified");
// Pick up the item
PyObject* item = PyDict_GetItemString(kwds, "item");
if (!item)
throw DataException("missing item on Flow");
if (!PyObject_TypeCheck(item, Item::metadata->pythonClass))
throw DataException("flow item must be of type item");
// Pick up the quantity
PyObject* q1 = PyDict_GetItemString(kwds, "quantity");
double q2 = q1 ? PythonData(q1).getDouble() : 1.0;
// Pick up the effectivity dates
DateRange eff;
PyObject* eff_start = PyDict_GetItemString(kwds, "effective_start");
if (eff_start)
{
PythonData d(eff_start);
eff.setStart(d.getDate());
}
PyObject* eff_end = PyDict_GetItemString(kwds, "effective_end");
if (eff_end)
{
PythonData d(eff_end);
eff.setEnd(d.getDate());
}
// Find or create a buffer for the item at the operation location
Buffer* buf = Buffer::findOrCreate(
static_cast<Item*>(item),
static_cast<Operation*>(oper)->getLocation()
);
// Pick up the type and create the flow
Flow *l;
PyObject* t = PyDict_GetItemString(kwds, "type");
if (t)
{
PythonData d(t);
if (d.getString() == "flow_end")
l = new FlowEnd(
static_cast<Operation*>(oper),
static_cast<Buffer*>(buf),
q2
);
else if (d.getString() == "flow_transfer_batch")
l = new FlowTransferBatch(
static_cast<Operation*>(oper),
static_cast<Buffer*>(buf),
q2
);
else
l = new FlowStart(
static_cast<Operation*>(oper),
static_cast<Buffer*>(buf),
q2
);
}
else
l = new FlowStart(
static_cast<Operation*>(oper),
static_cast<Buffer*>(buf),
q2
);
// Iterate over extra keywords, and set attributes. @todo move this responsibility to the readers...
if (l)
{
l->setEffective(eff);
PyObject *key, *value;
Py_ssize_t pos = 0;
while (PyDict_Next(kwds, &pos, &key, &value))
{
PythonData field(value);
PyObject* key_utf8 = PyUnicode_AsUTF8String(key);
DataKeyword attr(PyBytes_AsString(key_utf8));
Py_DECREF(key_utf8);
if (!attr.isA(Tags::effective_end) && !attr.isA(Tags::effective_start)
&& !attr.isA(Tags::operation) && !attr.isA(Tags::buffer)
&& !attr.isA(Tags::quantity) && !attr.isA(Tags::type)
&& !attr.isA(Tags::action))
{
const MetaFieldBase* fmeta = l->getType().findField(attr.getHash());
if (!fmeta && l->getType().category)
fmeta = l->getType().category->findField(attr.getHash());
if (fmeta)
// Update the attribute
fmeta->setField(l, field);
else
l->setProperty(attr.getName(), value);
}
};
}
// Return the object
Py_INCREF(l);
return static_cast<PyObject*>(l);
}
catch (...)
{
PythonType::evalException();
return nullptr;
}
}
PyObject* Flow::create(PyTypeObject* pytype, PyObject* args, PyObject* kwds)
{
try
{
// Pick up the operation
PyObject* oper = PyDict_GetItemString(kwds, "operation");
if (!oper)
throw DataException("missing operation on Flow");
if (!PyObject_TypeCheck(oper, Operation::metadata->pythonClass))
throw DataException("flow operation must be of type operation");
// Pick up the buffer
PyObject* buf = PyDict_GetItemString(kwds, "buffer");
if (!buf)
throw DataException("missing buffer on Flow");
if (!PyObject_TypeCheck(buf, Buffer::metadata->pythonClass))
throw DataException("flow buffer must be of type buffer");
// Pick up the quantity
PyObject* q1 = PyDict_GetItemString(kwds, "quantity");
double q2 = q1 ? PythonData(q1).getDouble() : 1.0;
// Pick up the effectivity dates
DateRange eff;
PyObject* eff_start = PyDict_GetItemString(kwds, "effective_start");
if (eff_start)
{
PythonData d(eff_start);
eff.setStart(d.getDate());
}
PyObject* eff_end = PyDict_GetItemString(kwds, "effective_end");
if (eff_end)
{
PythonData d(eff_end);
eff.setEnd(d.getDate());
}
// Pick up the type and create the flow
Flow *l;
PyObject* t = PyDict_GetItemString(kwds, "type");
if (t)
{
PythonData d(t);
if (d.getString() == "flow_end")
l = new FlowEnd(
static_cast<Operation*>(oper),
static_cast<Buffer*>(buf),
q2
);
else if (d.getString() == "flow_fixed_end")
l = new FlowFixedEnd(
static_cast<Operation*>(oper),
static_cast<Buffer*>(buf),
q2
);
else if (d.getString() == "flow_fixed_start")
l = new FlowFixedStart(
static_cast<Operation*>(oper),
static_cast<Buffer*>(buf),
q2
);
else
l = new FlowStart(
static_cast<Operation*>(oper),
static_cast<Buffer*>(buf),
q2
);
}
else
l = new FlowStart(
static_cast<Operation*>(oper),
static_cast<Buffer*>(buf),
q2
);
// Iterate over extra keywords, and set attributes. @todo move this responsibility to the readers...
if (l)
{
l->setEffective(eff);
PyObject *key, *value;
Py_ssize_t pos = 0;
while (PyDict_Next(kwds, &pos, &key, &value))
{
PythonData field(value);
PyObject* key_utf8 = PyUnicode_AsUTF8String(key);
DataKeyword attr(PyBytes_AsString(key_utf8));
Py_DECREF(key_utf8);
if (!attr.isA(Tags::effective_end) && !attr.isA(Tags::effective_start)
&& !attr.isA(Tags::operation) && !attr.isA(Tags::buffer)
&& !attr.isA(Tags::quantity) && !attr.isA(Tags::type)
&& !attr.isA(Tags::action))
{
const MetaFieldBase* fmeta = l->getType().findField(attr.getHash());
if (!fmeta && l->getType().category)
fmeta = l->getType().category->findField(attr.getHash());
if (fmeta)
// Update the attribute
fmeta->setField(l, field);
else
PyErr_Format(PyExc_AttributeError,
"attribute '%S' on '%s' can't be updated",
key, Py_TYPE(l)->tp_name);
}
};
}
// Return the object
Py_INCREF(l);
return static_cast<PyObject*>(l);
}
catch (...)
{
PythonType::evalException();
return NULL;
}
}