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dry.py
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dry.py
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# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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.
"""
Dry executor
"""
from datetime import datetime
from .base import BaseExecutor
class DryExecutor(BaseExecutor): # pylint: disable=abstract-method
"""
Executor which dry runs tasks - prints task information without causing any side effects
"""
def execute(self, task):
# updating the task manually instead of calling self._task_started(task),
# to avoid any side effects raising that event might cause
with task._update():
task.started_at = datetime.utcnow()
task.status = task.STARTED
if task.implementation:
if hasattr(task.actor, 'source_node'):
name = '{source_node.name}->{target_node.name}'.format(
source_node=task.actor.source_node, target_node=task.actor.target_node)
else:
name = task.actor.name
task.context.logger.info(
'<dry> {name} {task.interface_name}.{task.operation_name} started...'
.format(name=name, task=task))
task.context.logger.info(
'<dry> {name} {task.interface_name}.{task.operation_name} successful'
.format(name=name, task=task))
# updating the task manually instead of calling self._task_succeeded(task),
# to avoid any side effects raising that event might cause
with task._update():
task.ended_at = datetime.utcnow()
task.status = task.SUCCESS