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"""
(c) Copyright 2014,2015 Hewlett-Packard Development Company, L.P.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
"""
import logging
import falcon
from freezer_api.common._i18n import _
class FreezerAPIException(falcon.HTTPError):
"""
Base Freezer API Exception
"""
message = "unknown error"
def __init__(self, message=''):
if message:
self.message = _(str(message)) # noqa
logging.error(message)
Exception.__init__(self, message)
@staticmethod
def handle(ex, req, resp, params):
raise falcon.HTTPError(_('500 unknown server error'),
title=_("Internal Server Error"),
description=FreezerAPIException.message)
class BadDataFormat(FreezerAPIException):
@staticmethod
def handle(ex, req, resp, params):
raise falcon.HTTPBadRequest(
title=_("Bad request format"),
description=ex.message)
class DocumentExists(FreezerAPIException):
@staticmethod
def handle(ex, req, resp, params):
raise falcon.HTTPConflict(
title=_("Document already existing"),
description=ex.message)
class StorageEngineError(FreezerAPIException):
@staticmethod
def handle(ex, req, resp, params):
raise falcon.HTTPInternalServerError(
title=_("Internal Storage Error"),
description=ex.message)
class DocumentNotFound(FreezerAPIException):
@staticmethod
def handle(ex, req, resp, params):
raise falcon.HTTPError(
status=falcon.HTTP_404,
title=_("Not Found"),
description=ex.message)
class AccessForbidden(FreezerAPIException):
@staticmethod
def handle(ex, req, resp, params):
raise falcon.HTTPForbidden(
title=_("Access Forbidden"),
description="You are not allowed to access this resource")
class MethodNotImplemented(FreezerAPIException):
@staticmethod
def handle(ex, req, resp, params):
raise falcon.HTTPMethodNotAllowed(
title=_("Bad Method"),
description=ex.message,
allowed_methods=['GET', 'POST', 'HEAD', 'PATCH', 'DELETE'])
exception_handlers_catalog = [
BadDataFormat,
DocumentExists,
StorageEngineError,
DocumentNotFound,
AccessForbidden,
MethodNotImplemented
]
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