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Generalize provider error handling to processes (#1495)
This allows triggering errors from a processor with specific http status code, ogc exception code and a custom message. This is very useful the processor realizes that the input parameters don't make sense or are not allowed, in which case it can supply a descriptive error message and an http status code different from 500.
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# ================================================================= | ||
# | ||
# Authors: Bernhard Mallinger <[email protected]> | ||
# | ||
# Copyright (c) 2024 Bernhard Mallinger | ||
# | ||
# Permission is hereby granted, free of charge, to any person | ||
# obtaining a copy of this software and associated documentation | ||
# files (the "Software"), to deal in the Software without | ||
# restriction, including without limitation the rights to use, | ||
# copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
# copies of the Software, and to permit persons to whom the | ||
# Software is furnished to do so, subject to the following | ||
# conditions: | ||
# | ||
# The above copyright notice and this permission notice shall be | ||
# included in all copies or substantial portions of the Software. | ||
# | ||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES | ||
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | ||
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT | ||
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | ||
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | ||
# OTHER DEALINGS IN THE SOFTWARE. | ||
# | ||
# ================================================================= | ||
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from http import HTTPStatus | ||
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class GenericError(Exception): | ||
"""Exception class where error codes and messages | ||
can be defined in custom error subclasses, so custom | ||
providers and processes can raise appropriate errors. | ||
""" | ||
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ogc_exception_code = 'NoApplicableCode' | ||
http_status_code = HTTPStatus.INTERNAL_SERVER_ERROR | ||
default_msg = 'Unknown error' | ||
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def __init__(self, msg=None, *args, user_msg=None) -> None: | ||
# if only a user_msg is provided, use it as msg | ||
if user_msg and not msg: | ||
msg = user_msg | ||
super().__init__(msg, *args) | ||
self.user_msg = user_msg | ||
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@property | ||
def message(self): | ||
return self.user_msg if self.user_msg else self.default_msg |
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