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/*
* python/dballe - DB-All.e python bindings
*
* Copyright (C) 2013 ARPA-SIM <urpsim@smr.arpa.emr.it>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author: Enrico Zini <enrico@enricozini.com>
*/
#include <Python.h>
#include "config.h"
#include "common.h"
#include "vartable.h"
#include "varinfo.h"
#include "var.h"
#include "record.h"
#include "db.h"
#include "cursor.h"
#include "dballe/core/defs.h"
#include "dballe/core/var.h"
using namespace std;
using namespace dballe;
using namespace dballe::python;
extern "C" {
static PyObject* dballe_varinfo(PyTypeObject *type, PyObject *args, PyObject *kw)
{
const char* var_name;
if (!PyArg_ParseTuple(args, "s", &var_name))
return NULL;
return (PyObject*)varinfo_create(dballe::varinfo(resolve_varcode(var_name)));
}
static PyObject* dballe_var(PyTypeObject *type, PyObject *args)
{
const char* var_name;
PyObject* val = 0;
if (!PyArg_ParseTuple(args, "s|O", &var_name, &val))
return NULL;
if (val)
{
if (PyFloat_Check(val))
{
double v = PyFloat_AsDouble(val);
if (v == -1.0 && PyErr_Occurred())
return NULL;
return (PyObject*)var_create(dballe::varinfo(resolve_varcode(var_name)), v);
} else if (PyInt_Check(val)) {
long v = PyInt_AsLong(val);
if (v == -1 && PyErr_Occurred())
return NULL;
return (PyObject*)var_create(dballe::varinfo(resolve_varcode(var_name)), (int)v);
} else if (PyString_Check(val)) {
const char* v = PyString_AsString(val);
if (v == NULL)
return NULL;
return (PyObject*)var_create(dballe::varinfo(resolve_varcode(var_name)), v);
} else if (val == Py_None) {
return (PyObject*)var_create(dballe::varinfo(resolve_varcode(var_name)));
} else {
PyErr_SetString(PyExc_TypeError, "Expected int, float, str or None");
return NULL;
}
} else
return (PyObject*)var_create(dballe::varinfo(resolve_varcode(var_name)));
}
#define get_int_or_missing(intvar, ovar) \
int intvar; \
if (ovar == Py_None) \
intvar = MISSING_INT; \
else { \
intvar = PyInt_AsLong(ovar); \
if (intvar == -1 && PyErr_Occurred()) \
return NULL; \
}
static PyObject* dballe_describe_level(PyTypeObject *type, PyObject *args, PyObject* kw)
{
static char* kwlist[] = { "ltype1", "l1", "ltype2", "l2", NULL };
PyObject* oltype1 = Py_None;
PyObject* ol1 = Py_None;
PyObject* oltype2 = Py_None;
PyObject* ol2 = Py_None;
if (!PyArg_ParseTupleAndKeywords(args, kw, "O|OOO", kwlist, &oltype1, &ol1, &oltype2, &ol2))
return NULL;
get_int_or_missing(ltype1, oltype1);
get_int_or_missing(l1, ol1);
get_int_or_missing(ltype2, oltype2);
get_int_or_missing(l2, ol2);
Level lev(ltype1, l1, ltype2, l2);
string desc = lev.describe();
return PyString_FromString(desc.c_str());
}
static PyObject* dballe_describe_trange(PyTypeObject *type, PyObject *args, PyObject* kw)
{
static char* kwlist[] = { "pind", "p1", "p2", NULL };
PyObject* opind = Py_None;
PyObject* op1 = Py_None;
PyObject* op2 = Py_None;
if (!PyArg_ParseTupleAndKeywords(args, kw, "O|OO", kwlist, &opind, &op1, &op2))
return NULL;
get_int_or_missing(pind, opind);
get_int_or_missing(p1, op1);
get_int_or_missing(p2, op2);
Trange tr(pind, p1, p2);
string desc = tr.describe();
return PyString_FromString(desc.c_str());
}
static PyMethodDef dballe_methods[] = {
{"varinfo", (PyCFunction)dballe_varinfo, METH_VARARGS, "Query the DB-All.e variable table returning a Varinfo" },
{"var", (PyCFunction)dballe_var, METH_VARARGS, "Query the DB-All.e variable table returning a Var, optionally initialized with a value" },
{"describe_level", (PyCFunction)dballe_describe_level, METH_VARARGS | METH_KEYWORDS, "Return a string description for a level" },
{"describe_trange", (PyCFunction)dballe_describe_trange, METH_VARARGS | METH_KEYWORDS, "Return a string description for a time range" },
{ NULL }
};
PyMODINIT_FUNC init_dballe(void)
{
using namespace dballe::python;
PyObject* m;
m = Py_InitModule3("_dballe", dballe_methods,
"DB-All.e Python interface.");
register_vartable(m);
register_varinfo(m);
register_var(m);
register_record(m);
register_db(m);
register_cursor(m);
}
}
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