78 lines
2.1 KiB
Python
78 lines
2.1 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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from abc import ABCMeta
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from abc import abstractmethod
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import six
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from karbor import loadables
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@six.add_metaclass(ABCMeta)
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class BaseTrigger(object):
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"""Trigger base class that all Triggers should inherit from"""
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TRIGGER_TYPE = ""
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IS_ENABLED = True
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def __init__(self, trigger_id, trigger_property, executor):
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super(BaseTrigger, self).__init__()
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self._id = trigger_id
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self._operation_ids = set()
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self._executor = executor
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@abstractmethod
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def shutdown(self):
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pass
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@abstractmethod
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def register_operation(self, operation_id, **kwargs):
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pass
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@abstractmethod
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def unregister_operation(self, operation_id, **kwargs):
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pass
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@abstractmethod
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def update_trigger_property(self, trigger_property):
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pass
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@classmethod
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@abstractmethod
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def check_trigger_definition(cls, trigger_definition):
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pass
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@classmethod
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@abstractmethod
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def check_configuration(cls):
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pass
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def has_operations(self):
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return (len(self._operation_ids) != 0)
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class TriggerHandler(loadables.BaseLoader):
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def __init__(self):
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super(TriggerHandler, self).__init__(BaseTrigger)
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def all_triggers():
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"""Get all trigger classes."""
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all_classes = TriggerHandler().get_all_classes()
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for trigger_class in all_classes[:]:
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if trigger_class.TRIGGER_TYPE == 'time' and (
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not trigger_class.IS_ENABLED):
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all_classes.remove(trigger_class)
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return all_classes
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