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/*
* python/varinfo - DB-All.e Varinfo 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 "varinfo.h"
#include "dballe/core/var.h"
#include "common.h"
using namespace dballe;
using namespace dballe::python;
using namespace wreport;
extern "C" {
static PyMethodDef dpy_Varinfo_methods[] = {
{NULL}
};
static PyObject* dpy_Varinfo_is_string(dpy_Varinfo *self, void* closure)
{
if (self->info->is_string())
return Py_True;
else
return Py_False;
}
static PyObject* dpy_Varinfo_var(dpy_Varinfo *self, void* closure) { return format_varcode(self->info->var); }
static PyObject* dpy_Varinfo_len(dpy_Varinfo* self, void* closure) { return PyInt_FromLong(self->info->len); }
static PyObject* dpy_Varinfo_bit_len(dpy_Varinfo* self, void* closure) { return PyInt_FromLong(self->info->bit_len); }
static PyObject* dpy_Varinfo_unit(dpy_Varinfo* self, void* closure) { return PyString_FromString(self->info->unit); }
static PyObject* dpy_Varinfo_desc(dpy_Varinfo* self, void* closure) { return PyString_FromString(self->info->desc); }
static PyObject* dpy_Varinfo_scale(dpy_Varinfo* self, void* closure) { return PyInt_FromLong(self->info->scale); }
static PyObject* dpy_Varinfo_ref(dpy_Varinfo* self, void* closure) { return PyInt_FromLong(self->info->ref); }
static PyObject* dpy_Varinfo_bit_ref(dpy_Varinfo* self, void* closure) { return PyInt_FromLong(self->info->bit_ref); }
static PyGetSetDef dpy_Varinfo_getsetters[] = {
{"is_string", (getter)dpy_Varinfo_is_string, NULL, "true if the value is a string", NULL },
{"var", (getter)dpy_Varinfo_var, NULL, "variable code", NULL },
{"len", (getter)dpy_Varinfo_len, NULL, "number of significant digits", NULL},
{"bit_len", (getter)dpy_Varinfo_bit_len, NULL, "number of bits used to encode the value in BUFR", NULL},
{"scale", (getter)dpy_Varinfo_scale, NULL, "scale of the value as a power of 10", NULL},
{"ref", (getter)dpy_Varinfo_ref, NULL, "reference value added after scaling", NULL},
{"bit_ref", (getter)dpy_Varinfo_bit_ref, NULL, "reference value added after scaling, for BUFR decoding", NULL},
{"unit", (getter)dpy_Varinfo_unit, NULL, "measurement unit", NULL},
{"desc", (getter)dpy_Varinfo_desc, NULL, "description", NULL},
{NULL}
};
static int dpy_Varinfo_init(dpy_Varinfo* self, PyObject* args, PyObject* kw)
{
// People should not invoke Varinfo() as a constructor, but if they do,
// this is better than a segfault later on
PyErr_SetString(PyExc_NotImplementedError, "Varinfo objects cannot be constructed explicitly");
return -1;
}
static void dpy_Varinfo_dealloc(dpy_Varinfo* self)
{
// Explicitly call destructor
if (self->info.impl())
self->info.~Varinfo();
}
static PyObject* dpy_Varinfo_str(dpy_Varinfo* self)
{
return format_varcode(self->info->var);
}
static PyObject* dpy_Varinfo_repr(dpy_Varinfo* self)
{
wreport::Varcode code = self->info->var;
char buf[20];
snprintf(buf, 20, "Varinfo('%c%02d%03d')",
WR_VAR_F(code) == 0 ? 'B' :
WR_VAR_F(code) == 1 ? 'R' :
WR_VAR_F(code) == 2 ? 'C' :
WR_VAR_F(code) == 3 ? 'D' : '?',
WR_VAR_X(code), WR_VAR_Y(code));
return PyString_FromString(buf);
}
static PyTypeObject dpy_Varinfo_Type = {
PyObject_HEAD_INIT(NULL)
0, // ob_size
"dballe.Varinfo", // tp_name
sizeof(dpy_Varinfo), // tp_basicsize
0, // tp_itemsize
(destructor)dpy_Varinfo_dealloc, // tp_dealloc
0, // tp_print
0, // tp_getattr
0, // tp_setattr
0, // tp_compare
(reprfunc)dpy_Varinfo_repr, // tp_repr
0, // tp_as_number
0, // tp_as_sequence
0, // tp_as_mapping
0, // tp_hash
0, // tp_call
(reprfunc)dpy_Varinfo_str, // tp_str
0, // tp_getattro
0, // tp_setattro
0, // tp_as_buffer
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, // tp_flags
"DB-All.e Varinfo object", // tp_doc
0, // tp_traverse
0, // tp_clear
0, // tp_richcompare
0, // tp_weaklistoffset
0, // tp_iter
0, // tp_iternext
dpy_Varinfo_methods, // tp_methods
0, // tp_members
dpy_Varinfo_getsetters, // tp_getset
0, // tp_base
0, // tp_dict
0, // tp_descr_get
0, // tp_descr_set
0, // tp_dictoffset
(initproc)dpy_Varinfo_init, // tp_init
0, // tp_alloc
0, // tp_new
};
}
namespace dballe {
namespace python {
dpy_Varinfo* varinfo_create(const Varinfo& v)
{
dpy_Varinfo* result = PyObject_New(dpy_Varinfo, &dpy_Varinfo_Type);
if (!result) return NULL;
result = (dpy_Varinfo*)PyObject_Init((PyObject*)result, &dpy_Varinfo_Type);
new (&result->info) Varinfo(v);
return result;
}
void register_varinfo(PyObject* m)
{
dpy_Varinfo_Type.tp_new = PyType_GenericNew;
if (PyType_Ready(&dpy_Varinfo_Type) < 0)
return;
Py_INCREF(&dpy_Varinfo_Type);
PyModule_AddObject(m, "Varinfo", (PyObject*)&dpy_Varinfo_Type);
}
}
}
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