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# Copyright 2014 Huawei Technologies Co. Ltd
#
# 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.
"""Custom exception"""
import traceback
class DatabaseException(Exception):
"""Base class for all database exceptions."""
def __init__(self, message):
super(DatabaseException, self).__init__(message)
self.traceback = traceback.format_exc()
self.status_code = 400
def to_dict(self):
return {'message': str(self)}
class RecordNotExists(DatabaseException):
"""Define the exception for referring non-existing object in DB."""
def __init__(self, message):
super(RecordNotExists, self).__init__(message)
self.status_code = 404
class DuplicatedRecord(DatabaseException):
"""Define the exception for trying to insert an existing object in DB."""
def __init__(self, message):
super(DuplicatedRecord, self).__init__(message)
self.status_code = 409
class Unauthorized(DatabaseException):
"""Define the exception for invalid user login."""
def __init__(self, message):
super(Unauthorized, self).__init__(message)
self.status_code = 401
class UserDisabled(DatabaseException):
"""Define the exception that a disabled user tries to do some operations.
"""
def __init__(self, message):
super(UserDisabled, self).__init__(message)
self.status_code = 403
class Forbidden(DatabaseException):
"""Define the exception that a user is trying to make some action
without the right permission.
"""
def __init__(self, message):
super(Forbidden, self).__init__(message)
self.status_code = 403
class NotAcceptable(DatabaseException):
"""The data is not acceptable."""
def __init__(self, message):
super(NotAcceptable, self).__init__(message)
self.status_code = 406
class InvalidParameter(DatabaseException):
"""Define the exception that the request has invalid or missing parameters.
"""
def __init__(self, message):
super(InvalidParameter, self).__init__(message)
self.status_code = 400
class InvalidResponse(DatabaseException):
"""Define the exception that the response is invalid.
"""
def __init__(self, message):
super(InvalidResponse, self).__init__(message)
self.status_code = 400
class MultiDatabaseException(DatabaseException):
"""Define the exception composites with multi exceptions."""
def __init__(self, exceptions):
super(MultiDatabaseException, self).__init__('multi exceptions')
self.exceptions = exceptions
self.status_code = 400
@property
def traceback(self):
tracebacks = []
for exception in self.exceptions:
tracebacks.append(exception.trackback)
def to_dict(self):
dict_info = super(MultiDatabaseException, self).to_dict()
dict_info.update({
'exceptions': [
exception.to_dict() for exception in self.exceptions
]
})
return dict_info
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