def exception_to_dict(fault):
"""Converts exceptions to a dict for use in notifications."""
# TODO(johngarbutt) move to patron/exception.py to share with wrap_exception
code = 500
if hasattr(fault, "kwargs"):
code = fault.kwargs.get('code', 500)
# get the message from the exception that was thrown
# if that does not exist, use the name of the exception class itself
try:
message = fault.format_message()
# These exception handlers are broad so we don't fail to log the fault
# just because there is an unexpected error retrieving the message
except Exception:
try:
message = unicode(fault)
except Exception:
message = None
if not message:
message = fault.__class__.__name__
# NOTE(dripton) The message field in the database is limited to 255 chars.
# MySQL silently truncates overly long messages, but PostgreSQL throws an
# error if we don't truncate it.
u_message = utils.safe_truncate(message, 255)
fault_dict = dict(exception=fault)
fault_dict["message"] = u_message
fault_dict["code"] = code
return fault_dict
def exception_to_dict(fault):
"""Converts exceptions to a dict for use in notifications."""
# TODO(johngarbutt) move to patron/exception.py to share with wrap_exception
code = 500
if hasattr(fault, "kwargs"):
code = fault.kwargs.get('code', 500)
# get the message from the exception that was thrown
# if that does not exist, use the name of the exception class itself
try:
message = fault.format_message()
# These exception handlers are broad so we don't fail to log the fault
# just because there is an unexpected error retrieving the message
except Exception:
try:
message = unicode(fault)
except Exception:
message = None
if not message:
message = fault.__class__.__name__
# NOTE(dripton) The message field in the database is limited to 255 chars.
# MySQL silently truncates overly long messages, but PostgreSQL throws an
# error if we don't truncate it.
u_message = utils.safe_truncate(message, 255)
fault_dict = dict(exception=fault)
fault_dict["message"] = u_message
fault_dict["code"] = code
return fault_dict
def test_exception_to_dict_with_long_message_2_bytes(self):
# Generate Russian byte string whose length is 300. This Russian UTF-8
# character occupies 2 bytes. After truncating, the byte string length
# should be 254.
msg = encodeutils.safe_decode('\xd0\x92' * 150)
truncated_msg = utils.safe_truncate(msg, 255)
byte_message = encodeutils.safe_encode(truncated_msg)
self.assertEqual(254, len(byte_message))
def test_exception_to_dict_with_long_message_3_bytes(self):
# Generate Chinese byte string whose length is 300. This Chinese UTF-8
# character occupies 3 bytes. After truncating, the byte string length
# should be 255.
msg = encodeutils.safe_decode('\xe8\xb5\xb5' * 100)
truncated_msg = utils.safe_truncate(msg, 255)
byte_message = encodeutils.safe_encode(truncated_msg)
self.assertEqual(255, len(byte_message))
def test_exception_to_dict_with_long_message_3_bytes(self):
# Generate Chinese byte string whose length is 300. This Chinese UTF-8
# character occupies 3 bytes. After truncating, the byte string length
# should be 255.
msg = encodeutils.safe_decode('\xe8\xb5\xb5' * 100)
truncated_msg = utils.safe_truncate(msg, 255)
byte_message = encodeutils.safe_encode(truncated_msg)
self.assertEqual(255, len(byte_message))
def test_exception_to_dict_with_long_message_2_bytes(self):
# Generate Russian byte string whose length is 300. This Russian UTF-8
# character occupies 2 bytes. After truncating, the byte string length
# should be 254.
msg = encodeutils.safe_decode('\xd0\x92' * 150)
truncated_msg = utils.safe_truncate(msg, 255)
byte_message = encodeutils.safe_encode(truncated_msg)
self.assertEqual(254, len(byte_message))
