792 lines
25 KiB
Python
792 lines
25 KiB
Python
"""
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SleekXMPP: The Sleek XMPP Library
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Implementation of xeps for Internet of Things
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http://wiki.xmpp.org/web/Tech_pages/IoT_systems
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Copyright (C) 2013 Sustainable Innovation, Joachim.lindborg@sust.se, bjorn.westrom@consoden.se
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This file is part of SleekXMPP.
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See the file LICENSE for copying permission.
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"""
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from sleekxmpp import Iq, Message
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from sleekxmpp.xmlstream import register_stanza_plugin, ElementBase, ET, JID
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from re import match
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class Sensordata(ElementBase):
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""" Placeholder for the namespace, not used as a stanza """
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'sensordata'
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plugin_attrib = name
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interfaces = set(tuple())
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class FieldTypes():
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"""
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All field types are optional booleans that default to False
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"""
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field_types = set([ 'momentary','peak','status','computed','identity','historicalSecond','historicalMinute','historicalHour', \
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'historicalDay','historicalWeek','historicalMonth','historicalQuarter','historicalYear','historicalOther'])
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class FieldStatus():
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"""
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All field statuses are optional booleans that default to False
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"""
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field_status = set([ 'missing','automaticEstimate','manualEstimate','manualReadout','automaticReadout','timeOffset','warning','error', \
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'signed','invoiced','endOfSeries','powerFailure','invoiceConfirmed'])
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class Request(ElementBase):
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'req'
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plugin_attrib = name
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interfaces = set(['seqnr','nodes','fields','serviceToken','deviceToken','userToken','from','to','when','historical','all'])
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interfaces.update(FieldTypes.field_types)
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_flags = set(['serviceToken','deviceToken','userToken','from','to','when','historical','all'])
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_flags.update(FieldTypes.field_types)
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def __init__(self, xml=None, parent=None):
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ElementBase.__init__(self, xml, parent)
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self._nodes = set()
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self._fields = set()
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def setup(self, xml=None):
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"""
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Populate the stanza object using an optional XML object.
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Overrides ElementBase.setup
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Caches item information.
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Arguments:
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xml -- Use an existing XML object for the stanza's values.
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"""
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ElementBase.setup(self, xml)
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self._nodes = set([node['nodeId'] for node in self['nodes']])
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self._fields = set([field['name'] for field in self['fields']])
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def _get_flags(self):
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"""
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Helper function for getting of flags. Returns all flags in
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dictionary format: { "flag name": "flag value" ... }
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"""
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flags = {}
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for f in self._flags:
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if not self[f] == "":
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flags[f] = self[f]
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return flags
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def _set_flags(self, flags):
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"""
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Helper function for setting of flags.
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Arguments:
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flags -- Flags in dictionary format: { "flag name": "flag value" ... }
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"""
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for f in self._flags:
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if flags is not None and f in flags:
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self[f] = flags[f]
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else:
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self[f] = None
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def add_node(self, nodeId, sourceId=None, cacheType=None):
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"""
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Add a new node element. Each item is required to have a
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nodeId, but may also specify a sourceId value and cacheType.
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Arguments:
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nodeId -- The ID for the node.
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sourceId -- [optional] identifying the data source controlling the device
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cacheType -- [optional] narrowing down the search to a specific kind of node
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"""
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if nodeId not in self._nodes:
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self._nodes.add((nodeId))
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node = RequestNode(parent=self)
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node['nodeId'] = nodeId
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node['sourceId'] = sourceId
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node['cacheType'] = cacheType
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self.iterables.append(node)
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return node
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return None
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def del_node(self, nodeId):
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"""
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Remove a single node.
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Arguments:
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nodeId -- Node ID of the item to remove.
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"""
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if nodeId in self._nodes:
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nodes = [i for i in self.iterables if isinstance(i, RequestNode)]
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for node in nodes:
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if node['nodeId'] == nodeId:
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self.xml.remove(node.xml)
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self.iterables.remove(node)
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return True
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return False
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def get_nodes(self):
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"""Return all nodes."""
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nodes = []
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for node in self['substanzas']:
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if isinstance(node, RequestNode):
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nodes.append(node)
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return nodes
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def set_nodes(self, nodes):
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"""
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Set or replace all nodes. The given nodes must be in a
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list or set where each item is a tuple of the form:
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(nodeId, sourceId, cacheType)
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Arguments:
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nodes -- A series of nodes in tuple format.
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"""
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self.del_nodes()
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for node in nodes:
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if isinstance(node, RequestNode):
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self.add_node(node['nodeId'], node['sourceId'], node['cacheType'])
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else:
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nodeId, sourceId, cacheType = node
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self.add_node(nodeId, sourceId, cacheType)
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def del_nodes(self):
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"""Remove all nodes."""
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self._nodes = set()
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nodes = [i for i in self.iterables if isinstance(i, RequestNode)]
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for node in nodes:
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self.xml.remove(node.xml)
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self.iterables.remove(node)
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def add_field(self, name):
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"""
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Add a new field element. Each item is required to have a
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name.
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Arguments:
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name -- The name of the field.
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"""
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if name not in self._fields:
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self._fields.add((name))
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field = RequestField(parent=self)
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field['name'] = name
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self.iterables.append(field)
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return field
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return None
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def del_field(self, name):
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"""
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Remove a single field.
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Arguments:
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name -- name of field to remove.
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"""
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if name in self._fields:
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fields = [i for i in self.iterables if isinstance(i, RequestField)]
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for field in fields:
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if field['name'] == name:
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self.xml.remove(field.xml)
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self.iterables.remove(field)
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return True
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return False
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def get_fields(self):
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"""Return all fields."""
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fields = []
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for field in self['substanzas']:
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if isinstance(field, RequestField):
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fields.append(field)
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return fields
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def set_fields(self, fields):
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"""
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Set or replace all fields. The given fields must be in a
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list or set where each item is RequestField or string
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Arguments:
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fields -- A series of fields in RequestField or string format.
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"""
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self.del_fields()
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for field in fields:
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if isinstance(field, RequestField):
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self.add_field(field['name'])
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else:
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self.add_field(field)
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def del_fields(self):
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"""Remove all fields."""
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self._fields = set()
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fields = [i for i in self.iterables if isinstance(i, RequestField)]
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for field in fields:
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self.xml.remove(field.xml)
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self.iterables.remove(field)
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class RequestNode(ElementBase):
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""" Node element in a request """
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'node'
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plugin_attrib = name
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interfaces = set(['nodeId','sourceId','cacheType'])
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class RequestField(ElementBase):
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""" Field element in a request """
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'field'
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plugin_attrib = name
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interfaces = set(['name'])
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class Accepted(ElementBase):
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'accepted'
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plugin_attrib = name
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interfaces = set(['seqnr','queued'])
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class Started(ElementBase):
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'started'
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plugin_attrib = name
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interfaces = set(['seqnr'])
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class Failure(ElementBase):
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'failure'
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plugin_attrib = name
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interfaces = set(['seqnr','done'])
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class Error(ElementBase):
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""" Error element in a request failure """
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'error'
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plugin_attrib = name
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interfaces = set(['nodeId','timestamp','sourceId','cacheType','text'])
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def get_text(self):
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"""Return then contents inside the XML tag."""
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return self.xml.text
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def set_text(self, value):
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"""Set then contents inside the XML tag.
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:param value: string
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"""
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self.xml.text = value
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return self
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def del_text(self):
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"""Remove the contents inside the XML tag."""
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self.xml.text = ""
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return self
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class Rejected(ElementBase):
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'rejected'
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plugin_attrib = name
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interfaces = set(['seqnr','error'])
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sub_interfaces = set(['error'])
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class Fields(ElementBase):
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""" Fields element, top level in a response message with data """
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'fields'
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plugin_attrib = name
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interfaces = set(['seqnr','done','nodes'])
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def __init__(self, xml=None, parent=None):
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ElementBase.__init__(self, xml, parent)
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self._nodes = set()
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def setup(self, xml=None):
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"""
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Populate the stanza object using an optional XML object.
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Overrides ElementBase.setup
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Caches item information.
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Arguments:
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xml -- Use an existing XML object for the stanza's values.
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"""
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ElementBase.setup(self, xml)
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self._nodes = set([node['nodeId'] for node in self['nodes']])
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def add_node(self, nodeId, sourceId=None, cacheType=None, substanzas=None):
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"""
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Add a new node element. Each item is required to have a
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nodeId, but may also specify a sourceId value and cacheType.
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Arguments:
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nodeId -- The ID for the node.
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sourceId -- [optional] identifying the data source controlling the device
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cacheType -- [optional] narrowing down the search to a specific kind of node
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"""
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if nodeId not in self._nodes:
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self._nodes.add((nodeId))
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node = FieldsNode(parent=self)
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node['nodeId'] = nodeId
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node['sourceId'] = sourceId
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node['cacheType'] = cacheType
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if substanzas is not None:
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node.set_timestamps(substanzas)
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self.iterables.append(node)
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return node
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return None
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def del_node(self, nodeId):
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"""
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Remove a single node.
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Arguments:
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nodeId -- Node ID of the item to remove.
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"""
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if nodeId in self._nodes:
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nodes = [i for i in self.iterables if isinstance(i, FieldsNode)]
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for node in nodes:
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if node['nodeId'] == nodeId:
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self.xml.remove(node.xml)
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self.iterables.remove(node)
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return True
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return False
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def get_nodes(self):
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"""Return all nodes."""
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nodes = []
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for node in self['substanzas']:
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if isinstance(node, FieldsNode):
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nodes.append(node)
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return nodes
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def set_nodes(self, nodes):
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"""
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Set or replace all nodes. The given nodes must be in a
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list or set where each item is a tuple of the form:
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(nodeId, sourceId, cacheType)
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Arguments:
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nodes -- A series of nodes in tuple format.
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"""
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#print(str(id(self)) + " set_nodes: got " + str(nodes))
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self.del_nodes()
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for node in nodes:
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if isinstance(node, FieldsNode):
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self.add_node(node['nodeId'], node['sourceId'], node['cacheType'], substanzas=node['substanzas'])
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else:
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nodeId, sourceId, cacheType = node
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self.add_node(nodeId, sourceId, cacheType)
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def del_nodes(self):
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"""Remove all nodes."""
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self._nodes = set()
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nodes = [i for i in self.iterables if isinstance(i, FieldsNode)]
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for node in nodes:
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self.xml.remove(node.xml)
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self.iterables.remove(node)
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class FieldsNode(ElementBase):
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""" Node element in response fields """
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'node'
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plugin_attrib = name
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interfaces = set(['nodeId','sourceId','cacheType','timestamps'])
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def __init__(self, xml=None, parent=None):
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ElementBase.__init__(self, xml, parent)
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self._timestamps = set()
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def setup(self, xml=None):
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"""
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Populate the stanza object using an optional XML object.
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Overrides ElementBase.setup
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Caches item information.
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Arguments:
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xml -- Use an existing XML object for the stanza's values.
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"""
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ElementBase.setup(self, xml)
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self._timestamps = set([ts['value'] for ts in self['timestamps']])
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def add_timestamp(self, timestamp, substanzas=None):
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"""
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Add a new timestamp element.
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Arguments:
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timestamp -- The timestamp in ISO format.
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"""
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#print(str(id(self)) + " add_timestamp: " + str(timestamp))
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if timestamp not in self._timestamps:
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self._timestamps.add((timestamp))
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ts = Timestamp(parent=self)
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ts['value'] = timestamp
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if not substanzas is None:
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ts.set_datas(substanzas)
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#print("add_timestamp with substanzas: " + str(substanzas))
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self.iterables.append(ts)
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#print(str(id(self)) + " added_timestamp: " + str(id(ts)))
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return ts
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return None
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def del_timestamp(self, timestamp):
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"""
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Remove a single timestamp.
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Arguments:
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timestamp -- timestamp (in ISO format) of the item to remove.
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"""
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#print("del_timestamp: ")
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if timestamp in self._timestamps:
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timestamps = [i for i in self.iterables if isinstance(i, Timestamp)]
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for ts in timestamps:
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if ts['value'] == timestamp:
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self.xml.remove(ts.xml)
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self.iterables.remove(ts)
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return True
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return False
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def get_timestamps(self):
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"""Return all timestamps."""
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#print(str(id(self)) + " get_timestamps: ")
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timestamps = []
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for timestamp in self['substanzas']:
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if isinstance(timestamp, Timestamp):
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timestamps.append(timestamp)
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return timestamps
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def set_timestamps(self, timestamps):
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"""
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Set or replace all timestamps. The given timestamps must be in a
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list or set where each item is a timestamp
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Arguments:
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timestamps -- A series of timestamps.
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"""
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#print(str(id(self)) + " set_timestamps: got " + str(timestamps))
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self.del_timestamps()
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for timestamp in timestamps:
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#print("set_timestamps: subset " + str(timestamp))
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#print("set_timestamps: subset.substanzas " + str(timestamp['substanzas']))
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if isinstance(timestamp, Timestamp):
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self.add_timestamp(timestamp['value'], substanzas=timestamp['substanzas'])
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else:
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#print("set_timestamps: got " + str(timestamp))
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self.add_timestamp(timestamp)
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def del_timestamps(self):
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"""Remove all timestamps."""
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#print(str(id(self)) + " del_timestamps: ")
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self._timestamps = set()
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timestamps = [i for i in self.iterables if isinstance(i, Timestamp)]
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for timestamp in timestamps:
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self.xml.remove(timestamp.xml)
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self.iterables.remove(timestamp)
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class Field(ElementBase):
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"""
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Field element in response Timestamp. This is a base class,
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all instances of fields added to Timestamp must be of types:
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DataNumeric
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DataString
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DataBoolean
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DataDateTime
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DataTimeSpan
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DataEnum
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"""
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'field'
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plugin_attrib = name
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interfaces = set(['name','module','stringIds'])
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interfaces.update(FieldTypes.field_types)
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interfaces.update(FieldStatus.field_status)
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_flags = set()
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_flags.update(FieldTypes.field_types)
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_flags.update(FieldStatus.field_status)
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def set_stringIds(self, value):
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"""Verifies stringIds according to regexp from specification XMPP-0323.
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:param value: string
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"""
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pattern = re.compile("^\d+([|]\w+([.]\w+)*([|][^,]*)?)?(,\d+([|]\w+([.]\w+)*([|][^,]*)?)?)*$")
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if pattern.match(value) is not None:
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self.xml.stringIds = value
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else:
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# Bad content, add nothing
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pass
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return self
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def _get_flags(self):
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"""
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Helper function for getting of flags. Returns all flags in
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dictionary format: { "flag name": "flag value" ... }
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"""
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flags = {}
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for f in self._flags:
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if not self[f] == "":
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flags[f] = self[f]
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return flags
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def _set_flags(self, flags):
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"""
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Helper function for setting of flags.
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Arguments:
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flags -- Flags in dictionary format: { "flag name": "flag value" ... }
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"""
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for f in self._flags:
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if flags is not None and f in flags:
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self[f] = flags[f]
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else:
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self[f] = None
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def _get_typename(self):
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return "invalid type, use subclasses!"
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class Timestamp(ElementBase):
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""" Timestamp element in response Node """
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'timestamp'
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plugin_attrib = name
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interfaces = set(['value','datas'])
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def __init__(self, xml=None, parent=None):
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ElementBase.__init__(self, xml, parent)
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self._datas = set()
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def setup(self, xml=None):
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"""
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Populate the stanza object using an optional XML object.
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Overrides ElementBase.setup
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Caches item information.
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Arguments:
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xml -- Use an existing XML object for the stanza's values.
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"""
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ElementBase.setup(self, xml)
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self._datas = set([data['name'] for data in self['datas']])
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def add_data(self, typename, name, value, module=None, stringIds=None, unit=None, dataType=None, flags=None):
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"""
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Add a new data element.
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Arguments:
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typename -- The type of data element (numeric, string, boolean, dateTime, timeSpan or enum)
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value -- The value of the data element
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module -- [optional] language module to use for the data element
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stringIds -- [optional] The stringIds used to find associated text in the language module
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unit -- [optional] The unit. Only applicable for type numeric
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dataType -- [optional] The dataType. Only applicable for type enum
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"""
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if name not in self._datas:
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dataObj = None
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if typename == "numeric":
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dataObj = DataNumeric(parent=self)
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dataObj['unit'] = unit
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elif typename == "string":
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dataObj = DataString(parent=self)
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elif typename == "boolean":
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dataObj = DataBoolean(parent=self)
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elif typename == "dateTime":
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dataObj = DataDateTime(parent=self)
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elif typename == "timeSpan":
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dataObj = DataTimeSpan(parent=self)
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elif typename == "enum":
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dataObj = DataEnum(parent=self)
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dataObj['dataType'] = dataType
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dataObj['name'] = name
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dataObj['value'] = value
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dataObj['module'] = module
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dataObj['stringIds'] = stringIds
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if flags is not None:
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dataObj._set_flags(flags)
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self._datas.add(name)
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self.iterables.append(dataObj)
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return dataObj
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return None
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def del_data(self, name):
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"""
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Remove a single data element.
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Arguments:
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data_name -- The data element name to remove.
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"""
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if name in self._datas:
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datas = [i for i in self.iterables if isinstance(i, Field)]
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for data in datas:
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if data['name'] == name:
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self.xml.remove(data.xml)
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self.iterables.remove(data)
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return True
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return False
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def get_datas(self):
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""" Return all data elements. """
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datas = []
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for data in self['substanzas']:
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if isinstance(data, Field):
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datas.append(data)
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return datas
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def set_datas(self, datas):
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"""
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Set or replace all data elements. The given elements must be in a
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list or set where each item is a data element (numeric, string, boolean, dateTime, timeSpan or enum)
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Arguments:
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datas -- A series of data elements.
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"""
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self.del_datas()
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for data in datas:
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self.add_data(typename=data._get_typename(), name=data['name'], value=data['value'], module=data['module'], stringIds=data['stringIds'], unit=data['unit'], dataType=data['dataType'], flags=data._get_flags())
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def del_datas(self):
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"""Remove all data elements."""
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self._datas = set()
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datas = [i for i in self.iterables if isinstance(i, Field)]
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for data in datas:
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self.xml.remove(data.xml)
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self.iterables.remove(data)
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class DataNumeric(Field):
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"""
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Field data of type numeric.
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Note that the value is expressed as a string.
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"""
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'numeric'
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plugin_attrib = name
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interfaces = set(['value', 'unit'])
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interfaces.update(Field.interfaces)
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def _get_typename(self):
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return "numeric"
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class DataString(Field):
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"""
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Field data of type string
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"""
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'string'
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plugin_attrib = name
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interfaces = set(['value'])
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interfaces.update(Field.interfaces)
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def _get_typename(self):
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return "string"
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class DataBoolean(Field):
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"""
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Field data of type boolean.
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Note that the value is expressed as a string.
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"""
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'boolean'
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plugin_attrib = name
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interfaces = set(['value'])
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interfaces.update(Field.interfaces)
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def _get_typename(self):
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return "boolean"
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class DataDateTime(Field):
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"""
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Field data of type dateTime.
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Note that the value is expressed as a string.
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"""
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'dateTime'
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plugin_attrib = name
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interfaces = set(['value'])
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interfaces.update(Field.interfaces)
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def _get_typename(self):
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return "dateTime"
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class DataTimeSpan(Field):
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"""
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Field data of type timeSpan.
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Note that the value is expressed as a string.
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"""
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'timeSpan'
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plugin_attrib = name
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interfaces = set(['value'])
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interfaces.update(Field.interfaces)
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def _get_typename(self):
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return "timeSpan"
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class DataEnum(Field):
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"""
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Field data of type enum.
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Note that the value is expressed as a string.
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"""
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'enum'
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plugin_attrib = name
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interfaces = set(['value', 'dataType'])
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interfaces.update(Field.interfaces)
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def _get_typename(self):
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return "enum"
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class Done(ElementBase):
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""" Done element used to signal that all data has been transferred """
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'done'
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plugin_attrib = name
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interfaces = set(['seqnr'])
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class Cancel(ElementBase):
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""" Cancel element used to signal that a request shall be cancelled """
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'cancel'
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plugin_attrib = name
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interfaces = set(['seqnr'])
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class Cancelled(ElementBase):
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""" Cancelled element used to signal that cancellation is confirmed """
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namespace = 'urn:xmpp:iot:sensordata'
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name = 'cancelled'
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plugin_attrib = name
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interfaces = set(['seqnr'])
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register_stanza_plugin(Iq, Request)
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register_stanza_plugin(Request, RequestNode, iterable=True)
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register_stanza_plugin(Request, RequestField, iterable=True)
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register_stanza_plugin(Iq, Accepted)
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register_stanza_plugin(Message, Failure)
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register_stanza_plugin(Failure, Error)
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register_stanza_plugin(Iq, Rejected)
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register_stanza_plugin(Message, Fields)
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register_stanza_plugin(Fields, FieldsNode, iterable=True)
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register_stanza_plugin(FieldsNode, Timestamp, iterable=True)
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register_stanza_plugin(Timestamp, Field, iterable=True)
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register_stanza_plugin(Timestamp, DataNumeric, iterable=True)
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register_stanza_plugin(Timestamp, DataString, iterable=True)
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register_stanza_plugin(Timestamp, DataBoolean, iterable=True)
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register_stanza_plugin(Timestamp, DataDateTime, iterable=True)
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register_stanza_plugin(Timestamp, DataTimeSpan, iterable=True)
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register_stanza_plugin(Timestamp, DataEnum, iterable=True)
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register_stanza_plugin(Message, Started)
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register_stanza_plugin(Iq, Cancel)
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register_stanza_plugin(Iq, Cancelled)
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