1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
/******************************************************************************
* $Id: pymodule.i 6470 2007-08-06 03:25:14Z hobu $
*
* Project: MapServer
* Purpose: Python-specific enhancements to MapScript
* Author: Sean Gillies, sgillies@frii.com
*
******************************************************************************
*
* Python-specific mapscript code has been moved into this
* SWIG interface file to improve the readibility of the main
* interface file. The main mapscript.i file includes this
* file when SWIGPYTHON is defined (via 'swig -python ...').
*
*****************************************************************************/
/******************************************************************************
* Simple Typemaps
*****************************************************************************/
/* Translates Python None to C NULL for strings */
%typemap(in,parse="z") char * "";
/* Translate Python's built-in file object to FILE * */
%typemap(in) FILE * {
if (!PyFile_Check($input)) {
PyErr_SetString(PyExc_TypeError, "Input is not file");
return NULL;
}
$1 = PyFile_AsFile($input);
}
/* To support imageObj::getBytes */
%typemap(out) gdBuffer {
$result = PyString_FromStringAndSize((const char*)$1.data, $1.size);
if( $1.owns_data )
gdFree($1.data);
}
/**************************************************************************
* MapServer Errors and Python Exceptions
**************************************************************************
*
* Translation of errors reported via the ms_error structure into
* Python exceptions. Original code by Chris Chamberlin <cdc@aracnet.com>
* has been updated by Sean Gillies <sgillies@frii.com> to use
* PyErr_SetString, %exception and $action for SWIG 1.3, do the most
* obvious mapping of MapServer errors to Python exceptions and map all
* others to a new 'MapServerError' exception which can be caught like this:
*
* from mapscript import *
* empty_map = mapObj('')
* try:
* img = empty_map.draw()
* except MapServerError, msg:
* print "Caught MapServerError:", msg
*
*************************************************************************/
%{
PyObject *MSExc_MapServerError;
PyObject *MSExc_MapServerChildError;
%}
/* Module initialization: call msSetup() and register msCleanup() */
%init %{
/* See bug 1203 for discussion of race condition with GD font cache */
if (msSetup() != MS_SUCCESS)
{
msSetError(MS_MISCERR, "Failed to set up threads and font cache",
"msSetup()");
}
Py_AtExit(msCleanup);
/* Define Generic MapServer error */
MSExc_MapServerError=PyErr_NewException("_mapscript.MapServerError",NULL,NULL);
if (MSExc_MapServerError != NULL)
PyDict_SetItemString(d, "MapServerError", MSExc_MapServerError);
/* Define MapServer MS_CHILD error */
MSExc_MapServerChildError = PyErr_NewException("_mapscript.MapServerChildError", NULL, NULL);
if (MSExc_MapServerChildError != NULL)
PyDict_SetItemString(d, "MapServerChildError", MSExc_MapServerChildError);
%}
%{
static void _raise_ms_exception( void );
static void _raise_ms_exception() {
int errcode;
errorObj *ms_error;
char *errmsg;
ms_error = msGetErrorObj();
errcode = ms_error->code;
errmsg = msGetErrorString("\n");
switch (errcode) {
case MS_IOERR:
PyErr_SetString(PyExc_IOError, errmsg);
break;
case MS_MEMERR:
PyErr_SetString(PyExc_MemoryError, errmsg);
break;
case MS_TYPEERR:
PyErr_SetString(PyExc_TypeError, errmsg);
break;
case MS_EOFERR:
PyErr_SetString(PyExc_EOFError, errmsg);
break;
case MS_CHILDERR:
PyErr_SetString(MSExc_MapServerChildError, errmsg);
break;
default:
PyErr_SetString(MSExc_MapServerError, errmsg);
break;
}
free(errmsg);
}
%}
%exception {
$action {
errorObj *ms_error = msGetErrorObj();
switch(ms_error->code) {
case MS_NOERR:
break;
case MS_NOTFOUND:
msResetErrorList();
break;
case -1:
break;
case MS_IOERR:
if (strcmp(ms_error->routine, "msSearchDiskTree()") != 0) {
_raise_ms_exception();
msResetErrorList();
return NULL;
}
default:
_raise_ms_exception();
msResetErrorList();
return NULL;
}
}
}
%pythoncode %{
MapServerError = _mapscript.MapServerError
MapServerChildError = _mapscript.MapServerChildError
%}
|
