e252506b51
Use import_class(), import_object(), and import_module() from openstack-common's importutils module. The equivalent functions have been removed from nova.utils. A few modules had import order cleaned up in passing, as well. My initial motivation for this was to remove some more usage of nova bits from nova.rpc as another step towards being able to move nova.rpc import openstack-common. Since I was pulling importutils into nova, I went ahead and converted the whole thing. Change-Id: I7c7786cf0001bcd06db52b9a99ff4284a3f6c6fa
148 lines
3.6 KiB
Python
148 lines
3.6 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 OpenStack LLC.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Exceptions common to OpenStack projects
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"""
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import logging
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class ProcessExecutionError(IOError):
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def __init__(self, stdout=None, stderr=None, exit_code=None, cmd=None,
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description=None):
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if description is None:
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description = "Unexpected error while running command."
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if exit_code is None:
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exit_code = '-'
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message = "%s\nCommand: %s\nExit code: %s\nStdout: %r\nStderr: %r" % (
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description, cmd, exit_code, stdout, stderr)
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IOError.__init__(self, message)
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class Error(Exception):
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def __init__(self, message=None):
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super(Error, self).__init__(message)
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class ApiError(Error):
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def __init__(self, message='Unknown', code='Unknown'):
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self.message = message
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self.code = code
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super(ApiError, self).__init__('%s: %s' % (code, message))
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class NotFound(Error):
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pass
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class UnknownScheme(Error):
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msg = "Unknown scheme '%s' found in URI"
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def __init__(self, scheme):
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msg = self.__class__.msg % scheme
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super(UnknownScheme, self).__init__(msg)
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class BadStoreUri(Error):
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msg = "The Store URI %s was malformed. Reason: %s"
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def __init__(self, uri, reason):
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msg = self.__class__.msg % (uri, reason)
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super(BadStoreUri, self).__init__(msg)
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class Duplicate(Error):
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pass
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class NotAuthorized(Error):
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pass
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class NotEmpty(Error):
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pass
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class Invalid(Error):
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pass
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class BadInputError(Exception):
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"""Error resulting from a client sending bad input to a server"""
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pass
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class MissingArgumentError(Error):
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pass
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class DatabaseMigrationError(Error):
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pass
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class ClientConnectionError(Exception):
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"""Error resulting from a client connecting to a server"""
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pass
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def wrap_exception(f):
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def _wrap(*args, **kw):
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try:
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return f(*args, **kw)
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except Exception, e:
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if not isinstance(e, Error):
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#exc_type, exc_value, exc_traceback = sys.exc_info()
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logging.exception('Uncaught exception')
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#logging.error(traceback.extract_stack(exc_traceback))
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raise Error(str(e))
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raise
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_wrap.func_name = f.func_name
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return _wrap
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class OpenstackException(Exception):
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"""
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Base Exception
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To correctly use this class, inherit from it and define
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a 'message' property. That message will get printf'd
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with the keyword arguments provided to the constructor.
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"""
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message = "An unknown exception occurred"
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def __init__(self, **kwargs):
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try:
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self._error_string = self.message % kwargs
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except Exception:
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# at least get the core message out if something happened
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self._error_string = self.message
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def __str__(self):
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return self._error_string
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class MalformedRequestBody(OpenstackException):
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message = "Malformed message body: %(reason)s"
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class InvalidContentType(OpenstackException):
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message = "Invalid content type %(content_type)s"
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