76cbdb467b
* added execute_with_retries method * added retries_number and retry_after config opts * added unit tests that check that only specified errors will be retried partially implements bp: clients-calls-retry Change-Id: I59c27b1b9891900d9222fbe4303a33a31d749493
373 lines
11 KiB
Python
373 lines
11 KiB
Python
# Copyright (c) 2013 Mirantis Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from oslo_utils import uuidutils
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import six
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from sahara.i18n import _
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class SaharaException(Exception):
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"""Base Exception for the project
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To correctly use this class, inherit from it and define
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a 'message' and 'code' properties.
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"""
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message = _("An unknown exception occurred")
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code = "UNKNOWN_EXCEPTION"
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def __str__(self):
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return self.message
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def __init__(self):
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super(SaharaException, self).__init__(
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'%s: %s' % (self.code, self.message))
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self.uuid = uuidutils.generate_uuid()
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self.message = (_('%(message)s\nError ID: %(id)s')
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% {'message': self.message, 'id': self.uuid})
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class NotFoundException(SaharaException):
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message = _("Object '%s' is not found")
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# It could be a various property of object which was not found
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value = None
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def __init__(self, value, message=None):
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self.code = "NOT_FOUND"
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self.value = value
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if message:
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self.message = message % value
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else:
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self.message = self.message % value
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super(NotFoundException, self).__init__()
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class NameAlreadyExistsException(SaharaException):
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message = _("Name already exists")
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def __init__(self, message=None):
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self.code = "NAME_ALREADY_EXISTS"
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if message:
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self.message = message
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super(NameAlreadyExistsException, self).__init__()
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class InvalidCredentials(SaharaException):
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message = _("Invalid credentials")
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def __init__(self, message=None):
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self.code = "INVALID_CREDENTIALS"
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if message:
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self.message = message
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super(InvalidCredentials, self).__init__()
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class InvalidReferenceException(SaharaException):
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message = _("Invalid object reference")
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def __init__(self, message=None):
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self.code = "INVALID_REFERENCE"
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if message:
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self.message = message
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super(InvalidReferenceException, self).__init__()
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class RemoteCommandException(SaharaException):
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message = _("Error during command execution: \"%s\"")
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def __init__(self, cmd, ret_code=None, stdout=None,
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stderr=None):
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self.code = "REMOTE_COMMAND_FAILED"
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self.cmd = cmd
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self.ret_code = ret_code
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self.stdout = stdout
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self.stderr = stderr
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self.message = self.message % cmd
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if ret_code:
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self.message = '%s\nReturn code: %s' % (self.message,
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six.text_type(ret_code))
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if stderr:
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self.message = '%s\nSTDERR:\n%s' % (
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self.message, stderr.decode('ascii', 'ignore'))
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if stdout:
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self.message = '%s\nSTDOUT:\n%s' % (
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self.message, stdout.decode('ascii', 'ignore'))
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super(RemoteCommandException, self).__init__()
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class InvalidDataException(SaharaException):
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"""General exception to use for invalid data
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A more useful message should be passed to __init__ which
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tells the user more about why the data is invalid.
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"""
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message = _("Data is invalid")
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code = "INVALID_DATA"
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def __init__(self, message=None):
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if message:
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self.message = message
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super(InvalidDataException, self).__init__()
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class BadJobBinaryInternalException(SaharaException):
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message = _("Job binary internal data must be a string of length "
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"greater than zero")
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def __init__(self, message=None):
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if message:
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self.message = message
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self.code = "BAD_JOB_BINARY"
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super(BadJobBinaryInternalException, self).__init__()
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class BadJobBinaryException(SaharaException):
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message = _("To work with JobBinary located in internal swift add 'user'"
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" and 'password' to extra")
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def __init__(self, message=None):
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if message:
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self.message = message
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self.code = "BAD_JOB_BINARY"
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super(BadJobBinaryException, self).__init__()
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class DBDuplicateEntry(SaharaException):
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message = _("Database object already exists")
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code = "DB_DUPLICATE_ENTRY"
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def __init__(self, message=None):
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if message:
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self.message = message
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super(DBDuplicateEntry, self).__init__()
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class CreationFailed(SaharaException):
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message = _("Object was not created")
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code = "CREATION_FAILED"
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def __init__(self, message=None):
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if message:
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self.message = message
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super(CreationFailed, self).__init__()
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class CancelingFailed(SaharaException):
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message = _("Operation was not canceled")
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code = "CANCELING_FAILED"
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def __init__(self, message=None):
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if message:
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self.message = message
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super(CancelingFailed, self).__init__()
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class DeletionFailed(SaharaException):
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message = _("Object was not deleted")
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code = "DELETION_FAILED"
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def __init__(self, message=None):
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if message:
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self.message = message
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super(DeletionFailed, self).__init__()
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class MissingFloatingNetworkException(SaharaException):
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def __init__(self, ng_name):
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self.message = _("Node Group %s is missing 'floating_ip_pool' "
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"field") % ng_name
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self.code = "MISSING_FLOATING_NETWORK"
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super(MissingFloatingNetworkException, self).__init__()
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class SwiftClientException(SaharaException):
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'''General wrapper object for swift client exceptions
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This exception is intended for wrapping the message from a
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swiftclient.ClientException in a SaharaException. The ClientException
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should be caught and an instance of SwiftClientException raised instead.
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'''
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def __init__(self, message):
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self.message = message
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self.code = "SWIFT_CLIENT_EXCEPTION"
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super(SwiftClientException, self).__init__()
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class DataTooBigException(SaharaException):
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message = _("Size of data (%(size)s) is greater than maximum "
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"(%(maximum)s)")
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def __init__(self, size, maximum, message=None):
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if message:
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self.message = message
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self.message = self.message % ({'size': size, 'maximum': maximum})
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self.code = "DATA_TOO_BIG"
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super(DataTooBigException, self).__init__()
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class ThreadException(SaharaException):
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def __init__(self, thread_description, e):
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self.message = (_("An error occurred in thread '%(thread)s': %(e)s")
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% {'thread': thread_description,
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'e': six.text_type(e)})
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self.code = "THREAD_EXCEPTION"
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super(ThreadException, self).__init__()
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class NotImplementedException(SaharaException):
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code = "NOT_IMPLEMENTED"
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def __init__(self, feature):
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self.message = _("Feature '%s' is not implemented") % feature
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super(NotImplementedException, self).__init__()
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class HeatStackException(SaharaException):
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def __init__(self, heat_stack_status):
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self.code = "HEAT_STACK_EXCEPTION"
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self.message = (_("Heat stack failed with status %s") %
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heat_stack_status)
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super(HeatStackException, self).__init__()
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class ConfigurationError(SaharaException):
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code = "CONFIGURATION_ERROR"
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def __init__(self, message):
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self.message = message
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super(ConfigurationError, self).__init__()
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class IncorrectStateError(SaharaException):
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code = "INCORRECT_STATE_ERROR"
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def __init__(self, message):
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self.message = message
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super(IncorrectStateError, self).__init__()
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class SystemError(SaharaException):
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code = "SYSTEM_ERROR"
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def __init__(self, message):
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self.message = message
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super(SystemError, self).__init__()
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class EDPError(SaharaException):
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code = "EDP_ERROR"
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def __init__(self, message):
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self.message = message
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super(EDPError, self).__init__()
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class TimeoutException(SaharaException):
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code = "TIMEOUT"
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message = _("'%(operation)s' timed out after %(timeout)i second(s)")
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def __init__(self, timeout, op_name=None, timeout_name=None):
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if op_name:
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op_name = _("Operation with name '%s'") % op_name
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else:
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op_name = _("Operation")
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self.message = self.message % {
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'operation': op_name, 'timeout': timeout}
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if timeout_name:
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desc = _("%(message)s and following timeout was violated: "
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"%(timeout_name)s")
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self.message = desc % {
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'message': self.message, 'timeout_name': timeout_name}
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super(TimeoutException, self).__init__()
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class DeprecatedException(SaharaException):
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code = "DEPRECATED"
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def __init__(self, message):
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self.message = message
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super(DeprecatedException, self).__init__()
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class Forbidden(SaharaException):
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code = "FORBIDDEN"
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message = _("You are not authorized to complete this action.")
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def __init__(self, message=None):
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if message:
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self.message = message
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super(Forbidden, self).__init__()
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class ImageNotRegistered(SaharaException):
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code = "IMAGE_NOT_REGISTERED"
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message = _("Image %s is not registered in Sahara")
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def __init__(self, image):
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self.message = self.message % image
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super(ImageNotRegistered, self).__init__()
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class MalformedRequestBody(SaharaException):
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code = "MALFORMED_REQUEST_BODY"
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message = _("Malformed message body: %(reason)s")
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def __init__(self, reason):
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self.message = self.message % {"reason": reason}
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super(MalformedRequestBody, self).__init__()
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class QuotaException(SaharaException):
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code = "QUOTA_ERROR"
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message = _("Quota exceeded for %(resource)s: Requested %(requested)s,"
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" but available %(available)s")
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def __init__(self, resource, requested, available):
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self.message = self.message % {'resource': resource,
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'requested': requested,
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'available': available}
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super(QuotaException, self).__init__()
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class UpdateFailedException(SaharaException):
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message = _("Object '%s' could not be updated")
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# Object was unable to be updated
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def __init__(self, value, message=None):
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self.code = "UPDATE_FAILED"
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if message:
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self.message = message
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self.message = self.message % value
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super(UpdateFailedException, self).__init__()
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class MaxRetriesExceeded(SaharaException):
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code = "MAX_RETRIES_EXCEEDED"
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message = _("Operation %(operation)s wasn't executed correctly after "
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"%(attempts)d attempts")
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def __init__(self, attempts, operation):
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self.message = self.message % {'operation': operation,
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'attempts': attempts}
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super(MaxRetriesExceeded, self).__init__()
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