error.py 1.5 KB

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  1. """
  2. This module houses the GDAL & SRS Exception objects, and the
  3. check_err() routine which checks the status code returned by
  4. GDAL/OGR methods.
  5. """
  6. # #### GDAL & SRS Exceptions ####
  7. class GDALException(Exception):
  8. pass
  9. class SRSException(Exception):
  10. pass
  11. # #### GDAL/OGR error checking codes and routine ####
  12. # OGR Error Codes
  13. OGRERR_DICT = {
  14. 1: (GDALException, "Not enough data."),
  15. 2: (GDALException, "Not enough memory."),
  16. 3: (GDALException, "Unsupported geometry type."),
  17. 4: (GDALException, "Unsupported operation."),
  18. 5: (GDALException, "Corrupt data."),
  19. 6: (GDALException, "OGR failure."),
  20. 7: (SRSException, "Unsupported SRS."),
  21. 8: (GDALException, "Invalid handle."),
  22. }
  23. # CPL Error Codes
  24. # https://gdal.org/api/cpl.html#cpl-error-h
  25. CPLERR_DICT = {
  26. 1: (GDALException, "AppDefined"),
  27. 2: (GDALException, "OutOfMemory"),
  28. 3: (GDALException, "FileIO"),
  29. 4: (GDALException, "OpenFailed"),
  30. 5: (GDALException, "IllegalArg"),
  31. 6: (GDALException, "NotSupported"),
  32. 7: (GDALException, "AssertionFailed"),
  33. 8: (GDALException, "NoWriteAccess"),
  34. 9: (GDALException, "UserInterrupt"),
  35. 10: (GDALException, "ObjectNull"),
  36. }
  37. ERR_NONE = 0
  38. def check_err(code, cpl=False):
  39. """
  40. Check the given CPL/OGRERR and raise an exception where appropriate.
  41. """
  42. err_dict = CPLERR_DICT if cpl else OGRERR_DICT
  43. if code == ERR_NONE:
  44. return
  45. elif code in err_dict:
  46. e, msg = err_dict[code]
  47. raise e(msg)
  48. else:
  49. raise GDALException('Unknown error code: "%s"' % code)