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
|
"""
This module houses the OGR & SRS Exception objects, and the
check_err() routine which checks the status code returned by
OGR methods.
"""
#### OGR & SRS Exceptions ####
class GDALException(Exception):
pass
class OGRException(Exception):
pass
class SRSException(Exception):
pass
class OGRIndexError(OGRException, KeyError):
"""
This exception is raised when an invalid index is encountered, and has
the 'silent_variable_feature' attribute set to true. This ensures that
django's templates proceed to use the next lookup type gracefully when
an Exception is raised. Fixes ticket #4740.
"""
silent_variable_failure = True
#### OGR error checking codes and routine ####
# OGR Error Codes
OGRERR_DICT = {
1: (OGRException, 'Not enough data.'),
2: (OGRException, 'Not enough memory.'),
3: (OGRException, 'Unsupported geometry type.'),
4: (OGRException, 'Unsupported operation.'),
5: (OGRException, 'Corrupt data.'),
6: (OGRException, 'OGR failure.'),
7: (SRSException, 'Unsupported SRS.'),
8: (OGRException, 'Invalid handle.'),
}
OGRERR_NONE = 0
def check_err(code):
"Checks the given OGRERR, and raises an exception where appropriate."
if code == OGRERR_NONE:
return
elif code in OGRERR_DICT:
e, msg = OGRERR_DICT[code]
raise e(msg)
else:
raise OGRException('Unknown error code: "%s"' % code)
|
