843b487736
Instead of requiring iteration to be able to list new jobs and existing jobs so that they can be claimed, allow for attaching callbacks to the jobboard where instead of requiring iteration those callbacks will be automatically called by the jobboard internally when events are recieved. Breaking change: renames transition notifier to notifier since it is really not just a notifier for transitions but is a generic notifier of events occuring (and details about those events). This is an internal api so its not expected that this will cause any issues (it's not expected for external users to be creating instances of this class). Implements bp board-notification Change-Id: I2384d5e335ed9d17e29fec9a78699e3156fa225c
46 lines
1.7 KiB
Python
46 lines
1.7 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (C) 2013 Yahoo! Inc. 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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from __future__ import print_function
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import sys
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import traceback
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from taskflow.listeners import base
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from taskflow.utils import misc
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class PrintingListener(base.LoggingBase):
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"""Writes the task and flow notifications messages to stdout or stderr."""
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def __init__(self, engine,
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task_listen_for=(misc.Notifier.ANY,),
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flow_listen_for=(misc.Notifier.ANY,),
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stderr=False):
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super(PrintingListener, self).__init__(engine,
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task_listen_for=task_listen_for,
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flow_listen_for=flow_listen_for)
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if stderr:
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self._file = sys.stderr
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else:
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self._file = sys.stdout
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def _log(self, message, *args, **kwargs):
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print(message % args, file=self._file)
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exc_info = kwargs.get('exc_info')
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if exc_info is not None:
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traceback.print_exception(exc_info[0], exc_info[1], exc_info[2],
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file=self._file)
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