1: /**
2: * PyAxl: Axl Library python bindings
3: * Copyright (C) 2009 Advanced Software Production Line, S.L.
4: *
5: * This program is free software; you can redistribute it and/or
6: * modify it under the terms of the GNU Lesser General Public License
7: * as published by the Free Software Foundation; either version 2.1
8: * of the License, or (at your option) any later version.
9: *
10: * This program is distributed in the hope that it will be useful,
11: * but WITHOUT ANY WARRANTY; without even the implied warranty of
12: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13: * Lesser General Public License for more details.
14: *
15: * You should have received a copy of the GNU Lesser General Public
16: * License along with this program; if not, write to the Free
17: * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18: * 02111-1307 USA
19: *
20: * You may find a copy of the license under this software is released
21: * at COPYING file. This is LGPL software: you are welcome to develop
22: * proprietary applications using this library without any royalty or
23: * fee but returning back any change, improvement or addition in the
24: * form of source code, project image, documentation patches, etc.
25: *
26: * For commercial support for XML enabled solutions contact us:
27: *
28: * Postal address:
29: * Advanced Software Production Line, S.L.
30: * C/ Antonio Suarez Nº 10,
31: * Edificio Alius A, Despacho 102
32: * Alcalá de Henares 28802 (Madrid)
33: * Spain
34: *
35: * Email address:
36: * info@aspl.es - http://www.aspl.es/axl
37: */
38: #include <py_axl_doc.h>
39:
40: #define LOG_DOMAIN "py-axl-doc"
41:
42: struct _PyAxlDoc {
43: /* header required to initialize python required bits for
44: every python object */
45: PyObject_HEAD
46:
47: /* pointer to the axl doc */
48: axlDoc * doc;
49: /* release the document on gc */
50: axl_bool finish_on_gc;
51: };
52:
53: static int py_axl_doc_init_type (PyAxlDoc *self, PyObject *args, PyObject *kwds)
54: {
55: return 0;
56: }
57:
58: /**
59: * @brief Function used to allocate memory required by the object
60: * axl.Doc
61: */
62: static PyObject * py_axl_doc_new (PyTypeObject *type, PyObject *args, PyObject *kwds)
63: {
64: PyAxlDoc * self;
65: const char * version = NULL;
66: const char * encoding = NULL;
67: axl_bool stand_alone = axl_true;
68:
69: /* now parse arguments */
70: static char *kwlist[] = {"version", "encoding", "standalone", NULL};
71:
72: /* create the object */
73: self = (PyAxlDoc *)type->tp_alloc(type, 0);
74:
75: /* in the case the constructor was called with arguments,
76: * check them */
77: if (! PyArg_ParseTupleAndKeywords(args, kwds, "|ssi", kwlist, &version, &encoding, &stand_alone))
78: return NULL;
79:
80: /* create the document */
81: self->finish_on_gc = axl_true;
82: self->doc = axl_doc_create (version, encoding, stand_alone);
83:
84: /* return reference created */
85: return (PyObject *)self;
86: }
87:
88: /**
89: * @brief Function used to finish and dealloc memory used by the
90: * object axl.Doc
91: */
92: static void py_axl_doc_dealloc (PyAxlDoc* self)
93: {
94: /* free document and nullfy pointer */
95: if (self->finish_on_gc)
96: axl_doc_free (self->doc);
97: self->doc = NULL;
98:
99: /* free the node it self */
100: self->ob_type->tp_free ((PyObject*)self);
101:
102: return;
103: }
104:
105: /**
106: * @brief This function implements the generic attribute getting that
107: * allows to perform complex member resolution (not merely direct
108: * member access).
109: */
110: PyObject * py_axl_doc_get_attr (PyObject *o, PyObject *attr_name) {
111: const char * attr = NULL;
112: PyObject * result;
113: PyAxlDoc * self = (PyAxlDoc *) o;
114:
115: /* now implement other attributes */
116: if (! PyArg_Parse (attr_name, "s", &attr))
117: return NULL;
118:
119: __axl_log (LOG_DOMAIN, AXL_LEVEL_DEBUG, "received request to report doc attr name %s (self: %p)",
120: attr, o);
121: if (axl_cmp (attr, "encoding")) {
122: /* encoding */
123: return Py_BuildValue ("s", axl_doc_get_encoding (self->doc));
124: } else if (axl_cmp (attr, "standalone") || axl_cmp (attr, "stand_alone")) {
125: /* standalone */
126: return Py_BuildValue ("i", axl_doc_get_standalone (self->doc));
127: } else if (axl_cmp (attr, "root")) {
128: if (axl_doc_get_root (self->doc) == NULL) {
129: Py_INCREF (Py_None);
130: return Py_None;
131: }
132:
133: /* return root axl node: signaling to not finish the
134: * internal copy once it is collected the reference */
135: __axl_log (LOG_DOMAIN, AXL_LEVEL_DEBUG, "reporting root node (doc ref: %p, ref count: %d)",
136: self, self->ob_refcnt);
137: return py_axl_node_create (axl_doc_get_root (self->doc), axl_false, o);
138: }
139:
140: /* first implement generic attr already defined */
141: result = PyObject_GenericGetAttr (o, attr_name);
142: if (result)
143: return result;
144:
145: return NULL;
146: }
147:
148: /**
149: * @brief Implements attribute set operation.
150: */
151: int py_axl_doc_set_attr (PyObject *o, PyObject *attr_name, PyObject *v)
152: {
153: const char * attr = NULL;
154: PyAxlDoc * self = (PyAxlDoc *) o;
155: PyObject * py_node = NULL;
156:
157: /* now implement other attributes */
158: if (! PyArg_Parse (attr_name, "s", &attr))
159: return -1;
160:
161: if (axl_cmp (attr, "root")) {
162: if (! PyArg_Parse (v, "O", &py_node))
163: return -1;
164:
165: /* configure the node */
166: axl_doc_set_root (self->doc, py_axl_node_get (py_node));
167:
168: /* set the node to not dealloc internal node */
169: py_axl_node_set_dealloc (py_node, axl_false);
170:
171: return 0;
172: }
173:
174: /* now implement generic setter */
175: return PyObject_GenericSetAttr (o, attr_name, v);
176: }
177:
178: static PyObject * py_axl_doc_get_node (PyObject * _self, PyObject * args)
179: {
180: PyAxlDoc * self = (PyAxlDoc *) _self;
181: const char * path = NULL;
182: axlNode * node = NULL;
183:
184: /* parse and check result */
185: if (! PyArg_ParseTuple (args, "s", &path))
186: return NULL;
187:
188: /* get next called */
189: node = axl_doc_get (self->doc, path);
190: if (node == NULL) {
191: Py_INCREF (Py_None);
192: return Py_None;
193: } /* end if */
194:
195: /* create node result */
196: return py_axl_node_create (node, axl_false, _self);
197: }
198:
199: static PyObject * py_axl_doc_dump (PyObject * _self, PyObject * args, PyObject * kwds)
200: {
201: PyAxlDoc * self = (PyAxlDoc *) _self;
202: int tabular = 0;
203: char * content = NULL;
204: int size = 0;
205: PyObject * result;
206:
207:
208: /* parse and check result */
209: if (PyTuple_Size (args) == 0) {
210: /* simple dump operation */
211: /* dump content */
212: if (! axl_doc_dump (self->doc, &content, &size)) {
213: /* failed to dump */
214: PyErr_SetString (PyExc_TypeError, "axl_doc_dump operation failed, unable to produce dumped content");
215: return NULL;
216: } /* end if */
217:
218: /* create the tuple */
219: result = PyTuple_New (2);
220: PyTuple_SetItem (result, 0, Py_BuildValue ("s", content));
221: axl_free (content);
222: PyTuple_SetItem (result, 1, Py_BuildValue ("i", size));
223: } else {
224: /* dump with tabular configuration */
225: if (! PyArg_ParseTuple (args, "i", &tabular))
226: return NULL;
227:
228: /* check tabular value */
229: if (tabular < 0) {
230: PyErr_SetString (PyExc_ValueError, "failed to produce dump operation, received a non-positive (including 0) tabular value");
231: return NULL;
232: } /* end if */
233:
234: /* dump content with tabular configured */
235: if (! axl_doc_dump_pretty (self->doc, &content, &size, tabular)) {
236: /* failed to dump */
237: PyErr_SetString (PyExc_TypeError, "axl_doc_dump operation failed, unable to produce dumped content");
238: return NULL;
239: } /* end if */
240:
241: /* create the tuple */
242: result = PyTuple_New (2);
243: PyTuple_SetItem (result, 0, Py_BuildValue ("s", content));
244: axl_free (content);
245: PyTuple_SetItem (result, 1, Py_BuildValue ("i", size));
246: } /* end if */
247:
248: /* return tuple */
249: return result;
250: }
251:
252: static PyObject * py_axl_doc_file_dump (PyObject * _self, PyObject * args, PyObject * kwds)
253: {
254: PyAxlDoc * self = (PyAxlDoc *) _self;
255: int tabular = 0;
256: char * file = NULL;
257:
258: /* parse and check result */
259: if (PyTuple_Size (args) == 1) {
260:
261: /* dump with tabular configuration */
262: if (! PyArg_ParseTuple (args, "s", &file))
263: return NULL;
264:
265: /* simple dump operation */
266: /* dump content */
267: if (! axl_doc_dump_to_file (self->doc, file)) {
268: /* failed to dump */
269: PyErr_SetString (PyExc_TypeError, "axl_doc_dump_to_file operation failed, unable to produce dumped content");
270: return NULL;
271: } /* end if */
272:
273: } else if (PyTuple_Size (args) == 2) {
274:
275: /* dump with tabular configuration */
276: if (! PyArg_ParseTuple (args, "si", &file, &tabular))
277: return NULL;
278:
279: /* simple dump operation */
280: /* dump content */
281: if (! axl_doc_dump_pretty_to_file (self->doc, file, tabular)) {
282: /* failed to dump */
283: PyErr_SetString (PyExc_TypeError, "axl_doc_dump_pretty_to_file operation failed, unable to produce dumped content");
284: return NULL;
285: } /* end if */
286:
287: } /* end if */
288:
289: /* return ok operation */
290: return Py_BuildValue ("i", 1);
291: }
292:
293: static PyObject * py_axl_doc_has_pi (PyObject * _self, PyObject * args)
294: {
295: PyAxlDoc * self = (PyAxlDoc *) _self;
296: char * pi_name = NULL;
297:
298: /* parse and check result */
299: if (! PyArg_ParseTuple (args, "s", &pi_name))
300: return NULL;
301:
302: return Py_BuildValue ("i", axl_doc_has_pi_target (self->doc, pi_name));
303: }
304:
305: static PyObject * py_axl_doc_pi_value (PyObject * _self, PyObject * args)
306: {
307: PyAxlDoc * self = (PyAxlDoc *) _self;
308: char * pi_name = NULL;
309:
310: /* parse and check result */
311: if (! PyArg_ParseTuple (args, "s", &pi_name))
312: return NULL;
313:
314: return Py_BuildValue ("z", axl_doc_get_pi_target_content (self->doc, pi_name));
315: }
316:
317: static PyMethodDef py_axl_doc_methods[] = {
318: /* next_called */
319: {"get", (PyCFunction) py_axl_doc_get_node, METH_VARARGS,
320: "Allows to get a node found at a particular path (method wrapper of axl_doc_get)"},
321: /* next_called */
322: {"dump", (PyCFunction) py_axl_doc_dump, METH_VARARGS | METH_KEYWORDS,
323: "Allows to perform a dump operation returning the content and the size that result in a tuple."},
324: {"file_dump", (PyCFunction) py_axl_doc_file_dump, METH_VARARGS | METH_KEYWORDS,
325: "Allows to perform a dump operation sending the content to a file."},
326: /* has_pi */
327: {"has_pi", (PyCFunction) py_axl_doc_has_pi, METH_VARARGS,
328: "Allows to check if the provided doc has the given process instruction."},
329: /* pi */
330: {"pi", (PyCFunction) py_axl_doc_pi_value, METH_VARARGS,
331: "Allows to get the value of the given process instruction on the provided doc."},
332: {NULL, NULL, 0, NULL}
333: };
334:
335: static PyObject * py_axl_doc_str (PyObject * _self)
336: {
337: char * dump = NULL;
338: int size = 0;
339: PyAxlDoc * self = (PyAxlDoc *) _self;
340: PyObject * result = NULL;
341:
342: if (self == NULL || self->doc == NULL) {
343: Py_INCREF (Py_None);
344: return Py_None;
345: }
346:
347: if (! axl_doc_dump_pretty (self->doc, &dump, &size, 4)) {
348: Py_INCREF (Py_None);
349: return Py_None;
350: }
351:
352: result = Py_BuildValue ("z", dump);
353: axl_free (dump);
354: return result;
355: }
356:
357: static PyTypeObject PyAxlDocType = {
358: PyObject_HEAD_INIT(NULL)
359: 0, /* ob_size*/
360: "axl.Doc", /* tp_name*/
361: sizeof(PyAxlDoc), /* tp_basicsize*/
362: 0, /* tp_itemsize*/
363: (destructor)py_axl_doc_dealloc, /* tp_dealloc*/
364: 0, /* tp_print*/
365: 0, /* tp_getattr*/
366: 0, /* tp_setattr*/
367: 0, /* tp_compare*/
368: 0, /* tp_repr*/
369: 0, /* tp_as_number*/
370: 0, /* tp_as_sequence*/
371: 0, /* tp_as_mapping*/
372: 0, /* tp_hash */
373: 0, /* tp_call*/
374: py_axl_doc_str, /* tp_str*/
375: py_axl_doc_get_attr, /* tp_getattro*/
376: py_axl_doc_set_attr, /* tp_setattro*/
377: 0, /* tp_as_buffer*/
378: Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags*/
379: "Document object; wrapper of axlDoc API type", /* tp_doc */
380: 0, /* tp_traverse */
381: 0, /* tp_clear */
382: 0, /* tp_richcompare */
383: 0, /* tp_weaklistoffset */
384: 0, /* tp_iter */
385: 0, /* tp_iternext */
386: py_axl_doc_methods, /* tp_methods */
387: 0, /* py_axl_doc_members, */ /* tp_members */
388: 0, /* tp_getset */
389: 0, /* tp_base */
390: 0, /* tp_dict */
391: 0, /* tp_descr_get */
392: 0, /* tp_descr_set */
393: 0, /* tp_dictoffset */
394: (initproc)py_axl_doc_init_type, /* tp_init */
395: 0, /* tp_alloc */
396: py_axl_doc_new, /* tp_new */
397:
398: };
399:
400:
401: /**
402: * @brief Allows to check if the PyObject received represents a
403: * PyAxlDoc reference.
404: */
405: axl_bool py_axl_doc_check (PyObject * obj)
406: {
407: /* check null references */
408: if (obj == NULL)
409: return axl_false;
410:
411: /* return check result */
412: return PyObject_TypeCheck (obj, &PyAxlDocType);
413: }
414:
415: PyObject * py_axl_doc_create (axlDoc * doc, axl_bool finish_on_gc)
416: {
417: /* return a new instance */
418: PyAxlDoc * obj = (PyAxlDoc *) PyObject_CallObject ((PyObject *) &PyAxlDocType, NULL);
419:
420: /* check ref created */
421: if (obj == NULL) {
422: __axl_log (LOG_DOMAIN, AXL_LEVEL_CRITICAL, "Failed to create PyAxlDoc object, returning NULL");
423: return NULL;
424: } /* end if */
425:
426: /* configure finish handling */
427: obj->finish_on_gc = finish_on_gc;
428:
429: /* set doc if defined */
430: if (doc) {
431: __axl_log (LOG_DOMAIN, AXL_LEVEL_DEBUG, "Created axl.Doc reference (%p), refcount: %d",
432: obj, obj->ob_refcnt);
433: /* clear previous reference */
434: axl_doc_free (obj->doc);
435: obj->doc = doc;
436: }
437:
438: return __PY_OBJECT (obj);
439: }
440:
441: axlDoc * py_axl_doc_get (PyObject * doc)
442: {
443: PyAxlDoc * _doc = (PyAxlDoc *) doc;
444:
445: if (! py_axl_doc_check (doc))
446: return NULL;
447: /* return doc reference */
448: return _doc->doc;
449: }
450:
451: void init_axl_doc (PyObject * module)
452: {
453: /* register type */
454: if (PyType_Ready(&PyAxlDocType) < 0)
455: return;
456:
457: Py_INCREF (&PyAxlDocType);
458: PyModule_AddObject(module, "Doc", (PyObject *)&PyAxlDocType);
459:
460: }
461:
462:
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