89 lines
2.9 KiB
Python
89 lines
2.9 KiB
Python
# Copyright(c) 2016 Nippon Telegraph and Telephone Corporation
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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 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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import socket
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import sys
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import threading
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from oslo_log import log as oslo_logging
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from oslo_utils import excutils
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from oslo_utils import timeutils
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import masakarimonitors.conf
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from masakarimonitors.instancemonitor.libvirt_handler import callback
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from masakarimonitors.instancemonitor.libvirt_handler \
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import eventfilter_table as evft
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from masakarimonitors.objects import event_constants as ec
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LOG = oslo_logging.getLogger(__name__)
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CONF = masakarimonitors.conf.CONF
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class EventFilter(object):
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"""Class of filtering events."""
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def __init__(self):
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self.callback = callback.Callback()
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def vir_event_filter(self, eventID, eventType, detail, uuID):
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"""Filter events from libvirt.
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:param eventID: EventID
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:param eventType: Event type
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:param detail: Event name
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:pram uuID: UUID
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"""
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noticeType = ec.EventConstants.TYPE_VM
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hostname = CONF.hostname or socket.gethostname()
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currentTime = timeutils.utcnow()
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# All Event Output if debug mode is on.
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msg = "libvirt Event Received.type = %s \
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hostname = %s uuid = %s time = %s eventID = %d eventType = %d \
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detail = %d" % (
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noticeType,
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hostname, uuID, currentTime, eventID,
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eventType, detail)
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LOG.debug(msg)
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try:
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if detail in evft.event_filter_dic[eventID][eventType]:
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LOG.debug("Event Filter Matched.")
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eventID_val = evft.eventID_dic[eventID]
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detail_val = evft.detail_dic[eventID][eventType][detail]
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# callback Thread Start
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thread = threading.Thread(
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target=self.callback.libvirt_event_callback,
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args=(eventID_val, detail_val,
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uuID, noticeType,
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hostname, currentTime)
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)
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thread.start()
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else:
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LOG.debug("Event Filter Unmatched.")
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except KeyError:
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LOG.debug("virEventFilter KeyError")
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except IndexError:
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LOG.debug("virEventFilter IndexError")
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except TypeError:
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LOG.debug("virEventFilter TypeError")
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except Exception:
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with excutils.save_and_reraise_exception():
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LOG.debug("Unexpected error: %s" % sys.exc_info()[0])
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