1c60dac7fa
There was a decision in the community to change the project name. Change-Id: I8b3d538b9573ebaa2a873f4696e1f1a500c941a8
68 lines
2.5 KiB
Python
68 lines
2.5 KiB
Python
# 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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Manage all operations.
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"""
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from karbor import exception
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from karbor.i18n import _
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from karbor.services.operationengine import operations
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class OperationManager(object):
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"""Manage all operation classes which are defined at operations dir."""
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_instance = None
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def __new__(cls, *args, **kwargs):
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if not OperationManager._instance:
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OperationManager._instance = super(
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OperationManager, cls).__new__(
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cls, *args, **kwargs)
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return OperationManager._instance
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def __init__(self):
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super(OperationManager, self).__init__()
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all_cls = operations.all_operations()
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self._operation_cls_map = {cls.OPERATION_TYPE: cls
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for cls in all_cls}
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def _get_operation_cls(self, operation_type):
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if operation_type not in self._operation_cls_map:
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msg = (_("Invalid operation type:%s") % operation_type)
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raise exception.InvalidInput(msg)
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return self._operation_cls_map[operation_type]
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def check_operation_definition(self, operation_type, operation_definition):
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"""Check operation definition.
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:param operation_type: the type of operation
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:param operation_definition: the definition of operation
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:raise InvalidInput if the operation_type is invalid or
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InvalidOperationDefinition if operation_definition is invalid
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"""
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cls = self._get_operation_cls(operation_type)
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cls.check_operation_definition(operation_definition)
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def run_operation(self, operation_type, operation_definition, **kwargs):
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"""Run operation.
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:param operation_type: the type of operation
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:param operation_definition: the definition of operation
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:raise InvalidInput if the operation_type is invalid.
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"""
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cls = self._get_operation_cls(operation_type)
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cls.run(operation_definition, **kwargs)
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