213 lines
6.7 KiB
Python
213 lines
6.7 KiB
Python
# Copyright (c) 2012 Mitch Garnaat http://garnaat.org/
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# Copyright (c) 2012 Amazon.com, Inc. or its affiliates.
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# All Rights Reserved
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish, dis-
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# tribute, sublicense, and/or sell copies of the Software, and to permit
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# persons to whom the Software is furnished to do so, subject to the fol-
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# lowing conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
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# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
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# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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class Details(dict):
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"""
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A dict object that contains name/value pairs which provide
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more detailed information about the status of the system
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or the instance.
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"""
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def startElement(self, name, attrs, connection):
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return None
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def endElement(self, name, value, connection):
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if name == 'name':
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self._name = value
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elif name == 'status':
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self[self._name] = value
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else:
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setattr(self, name, value)
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class Event(object):
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"""
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A status event for an instance.
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:ivar code: A string indicating the event type.
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:ivar description: A string describing the reason for the event.
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:ivar not_before: A datestring describing the earliest time for
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the event.
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:ivar not_after: A datestring describing the latest time for
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the event.
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"""
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def __init__(self, code=None, description=None,
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not_before=None, not_after=None):
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self.code = code
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self.description = description
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self.not_before = not_before
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self.not_after = not_after
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def __repr__(self):
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return 'Event:%s' % self.code
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def startElement(self, name, attrs, connection):
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return None
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def endElement(self, name, value, connection):
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if name == 'code':
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self.code = value
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elif name == 'description':
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self.description = value
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elif name == 'notBefore':
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self.not_before = value
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elif name == 'notAfter':
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self.not_after = value
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else:
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setattr(self, name, value)
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class Status(object):
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"""
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A generic Status object used for system status and instance status.
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:ivar status: A string indicating overall status.
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:ivar details: A dict containing name-value pairs which provide
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more details about the current status.
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"""
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def __init__(self, status=None, details=None):
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self.status = status
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if not details:
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details = Details()
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self.details = details
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def __repr__(self):
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return 'Status:%s' % self.status
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def startElement(self, name, attrs, connection):
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if name == 'details':
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return self.details
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return None
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def endElement(self, name, value, connection):
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if name == 'status':
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self.status = value
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else:
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setattr(self, name, value)
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class EventSet(list):
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def startElement(self, name, attrs, connection):
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if name == 'item':
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event = Event()
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self.append(event)
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return event
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else:
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return None
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def endElement(self, name, value, connection):
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setattr(self, name, value)
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class InstanceStatus(object):
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"""
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Represents an EC2 Instance status as reported by
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DescribeInstanceStatus request.
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:ivar id: The instance identifier.
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:ivar zone: The availability zone of the instance.
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:ivar events: A list of events relevant to the instance.
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:ivar state_code: An integer representing the current state
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of the instance.
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:ivar state_name: A string describing the current state
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of the instance.
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:ivar system_status: A Status object that reports impaired
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functionality that stems from issues related to the systems
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that support an instance, such as such as hardware failures
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and network connectivity problems.
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:ivar instance_status: A Status object that reports impaired
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functionality that arises from problems internal to the instance.
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"""
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def __init__(self, id=None, zone=None, events=None,
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state_code=None, state_name=None):
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self.id = id
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self.zone = zone
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self.events = events
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self.state_code = state_code
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self.state_name = state_name
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self.system_status = Status()
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self.instance_status = Status()
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def __repr__(self):
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return 'InstanceStatus:%s' % self.id
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def startElement(self, name, attrs, connection):
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if name == 'eventsSet':
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self.events = EventSet()
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return self.events
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elif name == 'systemStatus':
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return self.system_status
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elif name == 'instanceStatus':
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return self.instance_status
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else:
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return None
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def endElement(self, name, value, connection):
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if name == 'instanceId':
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self.id = value
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elif name == 'availabilityZone':
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self.zone = value
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elif name == 'code':
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self.state_code = int(value)
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elif name == 'name':
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self.state_name = value
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else:
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setattr(self, name, value)
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class InstanceStatusSet(list):
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"""
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A list object that contains the results of a call to
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DescribeInstanceStatus request. Each element of the
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list will be an InstanceStatus object.
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:ivar next_token: If the response was truncated by
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the EC2 service, the next_token attribute of the
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object will contain the string that needs to be
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passed in to the next request to retrieve the next
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set of results.
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"""
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def __init__(self, connection=None):
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list.__init__(self)
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self.connection = connection
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self.next_token = None
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def startElement(self, name, attrs, connection):
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if name == 'item':
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status = InstanceStatus()
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self.append(status)
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return status
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else:
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return None
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def endElement(self, name, value, connection):
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if name == 'nextToken':
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self.next_token = value
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setattr(self, name, value)
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