XmlImporter._get_node() - Code Metrics - Inspection of "Removed duplicate code from XML parser (#376)" - FreeOpcUa/python-opcua - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 960975...2f9535 )

by Olivier

created 2016-11-30 14:45 UTC

XmlImporter._get_node() A

↳ Parent: XmlImporter

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	13
CRAP Score	4

Importance

Changes	2
Bugs	0	Features	0

Metric	Value
cc	4
c	2
b	0
f	0
dl	0
loc	13
ccs	13
cts	13
cp	1
crap	4
rs	9.2

"""
add nodes defined in XML to address space
format is the one from opc-ua specification
"""
import logging
import uuid
from copy import copy

import dateutil.parser

from opcua import ua
from opcua.common import xmlparser


class XmlImporter(object):

    def __init__(self, server):
        self.logger = logging.getLogger(__name__)
        self.parser = None
        self.server = server
        self.namespaces = {}
        self.aliases = {}

    def _map_namespaces(self, namespaces_uris):
        """
        creates a mapping between the namespaces in the xml file and in the server.
        if not present the namespace is registered.
        """
        namespaces = {}
        for ns_index, ns_uri in enumerate(namespaces_uris):
            ns_server_index = self.server.register_namespace(ns_uri)
            namespaces[ns_index + 1] = ns_server_index
        return namespaces

    def _map_aliases(self, aliases):
        """
        maps the import aliases to the correct namespaces        
        """
        aliases_mapped = {}
        for alias, node_id in aliases.items():
            aliases_mapped[alias] = self._migrate_ns(self.to_nodeid(node_id))
        return aliases_mapped

    def import_xml(self, xmlpath):
        """
        import xml and return added nodes
        """
        self.logger.info("Importing XML file %s", xmlpath)
        self.parser = xmlparser.XMLParser(xmlpath)

        dnodes = self.parser.get_node_datas()
        dnodes = self.make_objects(dnodes)

        self.namespaces = self._map_namespaces(self.parser.get_used_namespaces())
        self.aliases = self._map_aliases(self.parser.get_aliases())

        nodes_parsed = self._sort_nodes_by_parentid(dnodes)

        nodes = []
        for nodedata in nodes_parsed:  # self.parser:
            if nodedata.nodetype == 'UAObject':
                node = self.add_object(nodedata)
            elif nodedata.nodetype == 'UAObjectType':
                node = self.add_object_type(nodedata)
            elif nodedata.nodetype == 'UAVariable':
                node = self.add_variable(nodedata)
            elif nodedata.nodetype == 'UAVariableType':
                node = self.add_variable_type(nodedata)
            elif nodedata.nodetype == 'UAReferenceType':
                node = self.add_reference_type(nodedata)
            elif nodedata.nodetype == 'UADataType':
                node = self.add_datatype(nodedata)
            elif nodedata.nodetype == 'UAMethod':
                node = self.add_method(nodedata)
            else:
                self.logger.warning("Not implemented node type: %s ", nodedata.nodetype)
                continue
            nodes.append(node)
        return nodes
    
    def make_objects(self, node_datas):
        new_nodes = []
        for ndata in node_datas:
            ndata.nodeid = ua.NodeId.from_string(ndata.nodeid)
            ndata.browsename = ua.QualifiedName.from_string(ndata.browsename)
            if ndata.parent:
                ndata.parent = ua.NodeId.from_string(ndata.parent)
            if ndata.parentlink:
                ndata.parentlink = self.to_nodeid(ndata.parentlink)
            if ndata.typedef:
                ndata.typedef = self.to_nodeid(ndata.typedef)
            new_nodes.append(ndata)
        return new_nodes

    def _migrate_ns(self, nodeid):
        """
        Check if the index of nodeid or browsename  given in the xml model file
        must be converted to a already existing namespace id based on the files
        namespace uri

        :returns: NodeId (str)
        """
        if nodeid.NamespaceIndex in self.namespaces:
            nodeid = copy(nodeid)
            nodeid.NamespaceIndex = self.namespaces[nodeid.NamespaceIndex]
        return nodeid

    def _get_node(self, obj):
        node = ua.AddNodesItem()
        node.RequestedNewNodeId = self._migrate_ns(obj.nodeid)
        node.BrowseName = self._migrate_ns(obj.browsename)
        self.logger.info("Importing xml node (%s, %s) as (%s %s)", obj.browsename, obj.nodeid, node.BrowseName, node.RequestedNewNodeId)
        node.NodeClass = getattr(ua.NodeClass, obj.nodetype[2:])
        if obj.parent:
            node.ParentNodeId = self._migrate_ns(obj.parent)
        if obj.parentlink:
            node.ReferenceTypeId = self._migrate_ns(obj.parentlink)
        if obj.typedef:
            node.TypeDefinition = self._migrate_ns(obj.typedef)
        return node

    def to_nodeid(self, nodeid):
        if isinstance(nodeid, ua.NodeId):
            return nodeid
        elif not nodeid:
            return ua.NodeId(ua.ObjectIds.String)
        elif "=" in nodeid:
            return ua.NodeId.from_string(nodeid)
        elif hasattr(ua.ObjectIds, nodeid):
            return ua.NodeId(getattr(ua.ObjectIds, nodeid))
        else:
            if nodeid in self.aliases:
                return self.aliases[nodeid]
            else:
                return ua.NodeId(getattr(ua.ObjectIds, nodeid))

    def add_object(self, obj):

        node = self._get_node(obj)
        attrs = ua.ObjectAttributes()
        if obj.desc:
            attrs.Description = ua.LocalizedText(obj.desc)
        attrs.DisplayName = ua.LocalizedText(obj.displayname)
        attrs.EventNotifier = obj.eventnotifier
        node.NodeAttributes = attrs
        res = self.server.iserver.isession.add_nodes([node])
        self._add_refs(obj)
        res[0].StatusCode.check()
        return res[0].AddedNodeId

    def add_object_type(self, obj):

        node = self._get_node(obj)
        attrs = ua.ObjectTypeAttributes()
        if obj.desc:
            attrs.Description = ua.LocalizedText(obj.desc)
        attrs.DisplayName = ua.LocalizedText(obj.displayname)
        attrs.IsAbstract = obj.abstract
        node.NodeAttributes = attrs
        res = self.server.iserver.isession.add_nodes([node])
        self._add_refs(obj)
        res[0].StatusCode.check()
        return res[0].AddedNodeId

    def add_variable(self, obj):
        node = self._get_node(obj)
        attrs = ua.VariableAttributes()
        if obj.desc:
            attrs.Description = ua.LocalizedText(obj.desc)
        attrs.DisplayName = ua.LocalizedText(obj.displayname)
        attrs.DataType = self.to_nodeid(obj.datatype)
        if obj.value is not None:
            attrs.Value = self._add_variable_value(obj,)
        if obj.rank:
            attrs.ValueRank = obj.rank
        if obj.accesslevel:
            attrs.AccessLevel = obj.accesslevel
        if obj.useraccesslevel:
            attrs.UserAccessLevel = obj.useraccesslevel
        if obj.minsample:
            attrs.MinimumSamplingInterval = obj.minsample
        if obj.dimensions:
            attrs.ArrayDimensions = obj.dimensions
        node.NodeAttributes = attrs
        res = self.server.iserver.isession.add_nodes([node])
        self._add_refs(obj)
        res[0].StatusCode.check()
        return res[0].AddedNodeId

    def _make_ext_obj(self, obj):
        ext = getattr(ua, obj.objname)()
        for name, val in obj.body:
            if isinstance(val, str):
                raise Exception("Error val should a dict", name, val)
            else:
                for attname, v in val:
                    self._set_attr(ext, attname, v)
        return ext

    def _set_attr(self, obj, attname, val):
        # tow possible values:
        # either we get value directly
        # or a dict if it s an object or a list
        if isinstance(val, str):
            pval = xmlparser.ua_type_to_python(val, obj.ua_types[attname])
            setattr(obj, attname, pval)
        else:
            # so we have either an object or a list...
            obj2 = getattr(obj, attname)
            if isinstance(obj2, ua.NodeId):  # NodeId representation does not follow common rules!!
                for attname2, v2 in val:
                    if attname2 == "Identifier":
                        obj2 = ua.NodeId.from_string(v2)
                        setattr(obj, attname, obj2)
                        break
            elif not isinstance(obj2, ua.NodeId) and not hasattr(obj2, "ua_types"):
                # we probably have a list
                my_list = []
                for vtype, v2 in val:
                    my_list.append(xmlparser.ua_type_to_python(v2, vtype))
                setattr(obj, attname, my_list)
            else:
                for attname2, v2 in val:
                    self._set_attr(obj2, attname2, v2)
                setattr(obj, attname, obj2)

    def _add_variable_value(self, obj):
        """
        Returns the value for a Variable based on the objects value type.
        """
        self.logger.debug("Setting value with type %s and value %s", obj.valuetype, obj.value)
        if obj.valuetype == 'ListOfExtensionObject':
            values = []
            for ext in obj.value:
                extobj = self._make_ext_obj(ext)
                values.append(extobj)
            return values
        elif obj.valuetype == 'ListOfGuid':
            return ua.Variant([
                uuid.UUID(guid) for guid in obj.value
            ], getattr(ua.VariantType, obj.valuetype[6:]))
        elif obj.valuetype.startswith("ListOf"):
            vtype = obj.valuetype[6:]
            if hasattr(ua.ua_binary.Primitives, vtype):
                return ua.Variant(obj.value, getattr(ua.VariantType, vtype))
            else:
                return [getattr(ua, vtype)(v) for v in obj.value]
        elif obj.valuetype == 'ExtensionObject':
            extobj = self._make_ext_obj(obj.value)
            return ua.Variant(extobj, getattr(ua.VariantType, obj.valuetype))
        elif obj.valuetype == 'Guid':
            return ua.Variant(uuid.UUID(obj.value), getattr(ua.VariantType, obj.valuetype))
        elif obj.valuetype == 'LocalizedText':
            ltext = ua.LocalizedText()
            for name, val in obj.value:
                if name == "Text":
                    ltext.Text = val.encode("utf-8")

                else:
                    self.logger.warning("While parsing localizedText value, unkown element: %s with val: %s", name, val)
            return ua.Variant(ltext, ua.VariantType.LocalizedText)
        elif obj.valuetype == 'NodeId':
            return ua.Variant(ua.NodeId.from_string(obj.value))
        else:
            return ua.Variant(obj.value, getattr(ua.VariantType, obj.valuetype))

    def add_variable_type(self, obj):
        node = self._get_node(obj)
        attrs = ua.VariableTypeAttributes()
        if obj.desc:
            attrs.Description = ua.LocalizedText(obj.desc)
        attrs.DisplayName = ua.LocalizedText(obj.displayname)
        attrs.DataType = self.to_nodeid(obj.datatype)
        if obj.value and len(obj.value) == 1:
            attrs.Value = obj.value[0]
        if obj.rank:
            attrs.ValueRank = obj.rank
        if obj.abstract:
            attrs.IsAbstract = obj.abstract

        if obj.dimensions:
            attrs.ArrayDimensions = obj.dimensions
        node.NodeAttributes = attrs
        res = self.server.iserver.isession.add_nodes([node])
        self._add_refs(obj)
        res[0].StatusCode.check()
        return res[0].AddedNodeId

    def add_method(self, obj):
        node = self._get_node(obj)
        attrs = ua.MethodAttributes()
        if obj.desc:
            attrs.Description = ua.LocalizedText(obj.desc)
        attrs.DisplayName = ua.LocalizedText(obj.displayname)
        if obj.accesslevel:
            attrs.AccessLevel = obj.accesslevel
        if obj.useraccesslevel:
            attrs.UserAccessLevel = obj.useraccesslevel
        if obj.minsample:
            attrs.MinimumSamplingInterval = obj.minsample
        if obj.dimensions:
            attrs.ArrayDimensions = obj.dimensions
        node.NodeAttributes = attrs
        res = self.server.iserver.isession.add_nodes([node])
        self._add_refs(obj)
        res[0].StatusCode.check()
        return res[0].AddedNodeId

    def add_reference_type(self, obj):
        node = self._get_node(obj)
        attrs = ua.ReferenceTypeAttributes()
        if obj.desc:
            attrs.Description = ua.LocalizedText(obj.desc)
        attrs.DisplayName = ua.LocalizedText(obj.displayname)
        if obj. inversename:
            attrs.InverseName = ua.LocalizedText(obj.inversename)
        if obj.abstract:
            attrs.IsAbstract = obj.abstract
        if obj.symmetric:
            attrs.Symmetric = obj.symmetric
        node.NodeAttributes = attrs
        res = self.server.iserver.isession.add_nodes([node])
        self._add_refs(obj)
        res[0].StatusCode.check()
        return res[0].AddedNodeId


    def add_datatype(self, obj):
        node = self._get_node(obj)
        attrs = ua.DataTypeAttributes()
        if obj.desc:
            attrs.Description = ua.LocalizedText(obj.desc)
        attrs.DisplayName = ua.LocalizedText(obj.displayname)
        if obj.abstract:
            attrs.IsAbstract = obj.abstract
        node.NodeAttributes = attrs
        res = self.server.iserver.isession.add_nodes([node])
        self._add_refs(obj)
        res[0].StatusCode.check()
        return res[0].AddedNodeId

    def _add_refs(self, obj):
        if not obj.refs:
            return
        refs = []
        for data in obj.refs:
            ref = ua.AddReferencesItem()
            ref.IsForward = True
            ref.ReferenceTypeId = self.to_nodeid(data.reftype)
            ref.SourceNodeId = self._migrate_ns(obj.nodeid)
            ref.TargetNodeClass = ua.NodeClass.DataType
            ref.TargetNodeId = self._migrate_ns(self.to_nodeid(data.target))
            refs.append(ref)
        self.server.iserver.isession.add_references(refs)

    def _sort_nodes_by_parentid(self, ndatas):
        """
        Sort the list of nodes according their parent node in order to respect
        the dependency between nodes.

        :param nodes: list of NodeDataObjects
        :returns: list of sorted nodes
        """
        _ndatas = list(ndatas)
        # list of node ids that are already sorted / inserted
        sorted_nodes_ids = []
        # list of sorted nodes (i.e. XML Elements)
        sorted_ndatas = []
        all_node_ids = [data.nodeid for data in ndatas]
        # list of namespace indexes that are relevant for this import
        # we can only respect ordering nodes for namespaces indexes that
        # are defined in the xml file itself. Thus we assume that all other
        # references namespaces are already known to the server and should
        # not create any dependency problems (like "NodeNotFound")
        while len(_ndatas) > 0:
            pop_nodes = []
            for ndata in _ndatas:
                # Insert nodes that
                #   (1) have no parent / parent_ns is None (e.g. namespace 0)
                #   (2) ns is not in list of relevant namespaces
                if ndata.nodeid.NamespaceIndex not in self.namespaces or \
                        ndata.parent is None or \
                        ndata.parent not in all_node_ids:
                    sorted_ndatas.append(ndata)
                    sorted_nodes_ids.append(ndata.nodeid)
                    pop_nodes.append(ndata)
                else:
                    # Check if the nodes parent is already in the list of
                    # inserted nodes
                    if ndata.parent in sorted_nodes_ids:
                        sorted_ndatas.append(ndata)
                        sorted_nodes_ids.append(ndata.nodeid)
                        pop_nodes.append(ndata)
            # Remove inserted nodes from the list
            for ndata in pop_nodes:
                _ndatas.pop(_ndatas.index(ndata))
        return sorted_ndatas


1			"""
2			add nodes defined in XML to address space
3			format is the one from opc-ua specification
4			"""
5	1		import logging
6	1		import uuid
7	1		from copy import copy
8
9	1		import dateutil.parser
10
11	1		from opcua import ua
12	1		from opcua.common import xmlparser
13
14
15	1		class XmlImporter(object):
16
17	1		def __init__(self, server):
18	1		self.logger = logging.getLogger(__name__)
19	1		self.parser = None
20	1		self.server = server
21	1		self.namespaces = {}
22	1		self.aliases = {}
23
24	1		def _map_namespaces(self, namespaces_uris):
25			"""
26			creates a mapping between the namespaces in the xml file and in the server.
27			if not present the namespace is registered.
28			"""
29	1		namespaces = {}
30	1		for ns_index, ns_uri in enumerate(namespaces_uris):
31	1		ns_server_index = self.server.register_namespace(ns_uri)
32	1		namespaces[ns_index + 1] = ns_server_index
33	1		return namespaces
34
35	1		def _map_aliases(self, aliases):
36			"""
37			maps the import aliases to the correct namespaces
38			"""
39	1		aliases_mapped = {}
40	1		for alias, node_id in aliases.items():
41	1		aliases_mapped[alias] = self._migrate_ns(self.to_nodeid(node_id))
42	1		return aliases_mapped
43
44	1		def import_xml(self, xmlpath):
45			"""
46			import xml and return added nodes
47			"""
48	1		self.logger.info("Importing XML file %s", xmlpath)
49	1		self.parser = xmlparser.XMLParser(xmlpath)
50
51	1		dnodes = self.parser.get_node_datas()
52	1		dnodes = self.make_objects(dnodes)
53
54	1		self.namespaces = self._map_namespaces(self.parser.get_used_namespaces())
55	1		self.aliases = self._map_aliases(self.parser.get_aliases())
56
57	1		nodes_parsed = self._sort_nodes_by_parentid(dnodes)
58
59	1		nodes = []
60	1		for nodedata in nodes_parsed: # self.parser:
61	1		if nodedata.nodetype == 'UAObject':
62	1		node = self.add_object(nodedata)
63	1		elif nodedata.nodetype == 'UAObjectType':
64	1		node = self.add_object_type(nodedata)
65	1		elif nodedata.nodetype == 'UAVariable':
66	1		node = self.add_variable(nodedata)
67	1		elif nodedata.nodetype == 'UAVariableType':
68			node = self.add_variable_type(nodedata)
69	1		elif nodedata.nodetype == 'UAReferenceType':
70			node = self.add_reference_type(nodedata)
71	1		elif nodedata.nodetype == 'UADataType':
72	1		node = self.add_datatype(nodedata)
73	1		elif nodedata.nodetype == 'UAMethod':
74	1		node = self.add_method(nodedata)
75			else:
76			self.logger.warning("Not implemented node type: %s ", nodedata.nodetype)
77			continue
78	1		nodes.append(node)
79	1		return nodes
80
81	1		def make_objects(self, node_datas):
82	1		new_nodes = []
83	1		for ndata in node_datas:
84	1		ndata.nodeid = ua.NodeId.from_string(ndata.nodeid)
85	1		ndata.browsename = ua.QualifiedName.from_string(ndata.browsename)
86	1		if ndata.parent:
87	1		ndata.parent = ua.NodeId.from_string(ndata.parent)
88	1		if ndata.parentlink:
89	1		ndata.parentlink = self.to_nodeid(ndata.parentlink)
90	1		if ndata.typedef:
91	1		ndata.typedef = self.to_nodeid(ndata.typedef)
92	1		new_nodes.append(ndata)
93	1		return new_nodes
94
95	1		def _migrate_ns(self, nodeid):
96			"""
97			Check if the index of nodeid or browsename given in the xml model file
98			must be converted to a already existing namespace id based on the files
99			namespace uri
100
101			:returns: NodeId (str)
102			"""
103	1		if nodeid.NamespaceIndex in self.namespaces:
104	1		nodeid = copy(nodeid)
105	1		nodeid.NamespaceIndex = self.namespaces[nodeid.NamespaceIndex]
106	1		return nodeid
107
108	1		def _get_node(self, obj):
109	1		node = ua.AddNodesItem()
110	1		node.RequestedNewNodeId = self._migrate_ns(obj.nodeid)
111	1		node.BrowseName = self._migrate_ns(obj.browsename)
112	1		self.logger.info("Importing xml node (%s, %s) as (%s %s)", obj.browsename, obj.nodeid, node.BrowseName, node.RequestedNewNodeId)
113	1		node.NodeClass = getattr(ua.NodeClass, obj.nodetype[2:])
114	1		if obj.parent:
115	1		node.ParentNodeId = self._migrate_ns(obj.parent)
116	1		if obj.parentlink:
117	1		node.ReferenceTypeId = self._migrate_ns(obj.parentlink)
118	1		if obj.typedef:
119	1		node.TypeDefinition = self._migrate_ns(obj.typedef)
120	1		return node
121
122	1		def to_nodeid(self, nodeid):
123	1		if isinstance(nodeid, ua.NodeId):
124			return nodeid
125	1		elif not nodeid:
126			return ua.NodeId(ua.ObjectIds.String)
127	1		elif "=" in nodeid:
128	1		return ua.NodeId.from_string(nodeid)
129	1		elif hasattr(ua.ObjectIds, nodeid):
130	1		return ua.NodeId(getattr(ua.ObjectIds, nodeid))
131			else:
132	1		if nodeid in self.aliases:
133	1		return self.aliases[nodeid]
134			else:
135			return ua.NodeId(getattr(ua.ObjectIds, nodeid))
136
137	1	View Code Duplication	def add_object(self, obj):
			0 ignored issues – show Duplication introduced 2016-10-15 08:32 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
138	1		node = self._get_node(obj)
139	1		attrs = ua.ObjectAttributes()
140	1		if obj.desc:
141	1		attrs.Description = ua.LocalizedText(obj.desc)
142	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
143	1		attrs.EventNotifier = obj.eventnotifier
144	1		node.NodeAttributes = attrs
145	1		res = self.server.iserver.isession.add_nodes([node])
146	1		self._add_refs(obj)
147	1		res[0].StatusCode.check()
148	1		return res[0].AddedNodeId
149
150	1	View Code Duplication	def add_object_type(self, obj):
			0 ignored issues – show Duplication introduced 2016-10-15 08:32 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
151	1		node = self._get_node(obj)
152	1		attrs = ua.ObjectTypeAttributes()
153	1		if obj.desc:
154			attrs.Description = ua.LocalizedText(obj.desc)
155	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
156	1		attrs.IsAbstract = obj.abstract
157	1		node.NodeAttributes = attrs
158	1		res = self.server.iserver.isession.add_nodes([node])
159	1		self._add_refs(obj)
160	1		res[0].StatusCode.check()
161	1		return res[0].AddedNodeId
162
163	1		def add_variable(self, obj):
164	1		node = self._get_node(obj)
165	1		attrs = ua.VariableAttributes()
166	1		if obj.desc:
167	1		attrs.Description = ua.LocalizedText(obj.desc)
168	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
169	1		attrs.DataType = self.to_nodeid(obj.datatype)
170	1		if obj.value is not None:
171	1		attrs.Value = self._add_variable_value(obj,)
172	1		if obj.rank:
173	1		attrs.ValueRank = obj.rank
174	1		if obj.accesslevel:
175			attrs.AccessLevel = obj.accesslevel
176	1		if obj.useraccesslevel:
177			attrs.UserAccessLevel = obj.useraccesslevel
178	1		if obj.minsample:
179			attrs.MinimumSamplingInterval = obj.minsample
180	1		if obj.dimensions:
181	1		attrs.ArrayDimensions = obj.dimensions
182	1		node.NodeAttributes = attrs
183	1		res = self.server.iserver.isession.add_nodes([node])
184	1		self._add_refs(obj)
185	1		res[0].StatusCode.check()
186	1		return res[0].AddedNodeId
187
188	1		def _make_ext_obj(self, obj):
189	1		ext = getattr(ua, obj.objname)()
190	1		for name, val in obj.body:
191	1		if isinstance(val, str):
192			raise Exception("Error val should a dict", name, val)
193			else:
194	1		for attname, v in val:
195	1		self._set_attr(ext, attname, v)
196	1		return ext
197
198	1		def _set_attr(self, obj, attname, val):
199			# tow possible values:
200			# either we get value directly
201			# or a dict if it s an object or a list
202	1		if isinstance(val, str):
203	1		pval = xmlparser.ua_type_to_python(val, obj.ua_types[attname])
204	1		setattr(obj, attname, pval)
205			else:
206			# so we have either an object or a list...
207	1		obj2 = getattr(obj, attname)
208	1		if isinstance(obj2, ua.NodeId): # NodeId representation does not follow common rules!!
209	1		for attname2, v2 in val:
210	1		if attname2 == "Identifier":
211	1		obj2 = ua.NodeId.from_string(v2)
212	1		setattr(obj, attname, obj2)
213	1		break
214	1		elif not isinstance(obj2, ua.NodeId) and not hasattr(obj2, "ua_types"):
215			# we probably have a list
216	1		my_list = []
217	1		for vtype, v2 in val:
218	1		my_list.append(xmlparser.ua_type_to_python(v2, vtype))
219	1		setattr(obj, attname, my_list)
220			else:
221	1		for attname2, v2 in val:
222	1		self._set_attr(obj2, attname2, v2)
223	1		setattr(obj, attname, obj2)
224
225	1		def _add_variable_value(self, obj):
226			"""
227			Returns the value for a Variable based on the objects value type.
228			"""
229	1		self.logger.debug("Setting value with type %s and value %s", obj.valuetype, obj.value)
230	1		if obj.valuetype == 'ListOfExtensionObject':
231	1		values = []
232	1		for ext in obj.value:
233	1		extobj = self._make_ext_obj(ext)
234	1		values.append(extobj)
235	1		return values
236	1		elif obj.valuetype == 'ListOfGuid':
237	1		return ua.Variant([
238			uuid.UUID(guid) for guid in obj.value
239			], getattr(ua.VariantType, obj.valuetype[6:]))
240	1		elif obj.valuetype.startswith("ListOf"):
241	1		vtype = obj.valuetype[6:]
242	1		if hasattr(ua.ua_binary.Primitives, vtype):
243	1		return ua.Variant(obj.value, getattr(ua.VariantType, vtype))
244			else:
245	1		return [getattr(ua, vtype)(v) for v in obj.value]
246	1		elif obj.valuetype == 'ExtensionObject':
247	1		extobj = self._make_ext_obj(obj.value)
248	1		return ua.Variant(extobj, getattr(ua.VariantType, obj.valuetype))
249	1		elif obj.valuetype == 'Guid':
250	1		return ua.Variant(uuid.UUID(obj.value), getattr(ua.VariantType, obj.valuetype))
251	1		elif obj.valuetype == 'LocalizedText':
252	1		ltext = ua.LocalizedText()
253	1		for name, val in obj.value:
254	1		if name == "Text":
255	1	View Code Duplication	ltext.Text = val.encode("utf-8")
			0 ignored issues – show Duplication introduced 2016-08-10 08:32 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
256			else:
257			self.logger.warning("While parsing localizedText value, unkown element: %s with val: %s", name, val)
258	1		return ua.Variant(ltext, ua.VariantType.LocalizedText)
259	1		elif obj.valuetype == 'NodeId':
260	1		return ua.Variant(ua.NodeId.from_string(obj.value))
261			else:
262	1		return ua.Variant(obj.value, getattr(ua.VariantType, obj.valuetype))
263
264	1		def add_variable_type(self, obj):
265			node = self._get_node(obj)
266			attrs = ua.VariableTypeAttributes()
267			if obj.desc:
268			attrs.Description = ua.LocalizedText(obj.desc)
269			attrs.DisplayName = ua.LocalizedText(obj.displayname)
270			attrs.DataType = self.to_nodeid(obj.datatype)
271			if obj.value and len(obj.value) == 1:
272			attrs.Value = obj.value[0]
273			if obj.rank:
274			attrs.ValueRank = obj.rank
275			if obj.abstract:
276		View Code Duplication	attrs.IsAbstract = obj.abstract
			0 ignored issues – show Duplication introduced 2016-11-30 09:25 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
277			if obj.dimensions:
278			attrs.ArrayDimensions = obj.dimensions
279			node.NodeAttributes = attrs
280			res = self.server.iserver.isession.add_nodes([node])
281			self._add_refs(obj)
282			res[0].StatusCode.check()
283			return res[0].AddedNodeId
284
285	1		def add_method(self, obj):
286	1		node = self._get_node(obj)
287	1		attrs = ua.MethodAttributes()
288	1		if obj.desc:
289	1		attrs.Description = ua.LocalizedText(obj.desc)
290	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
291	1		if obj.accesslevel:
292			attrs.AccessLevel = obj.accesslevel
293	1		if obj.useraccesslevel:
294			attrs.UserAccessLevel = obj.useraccesslevel
295	1		if obj.minsample:
296			attrs.MinimumSamplingInterval = obj.minsample
297	1		if obj.dimensions:
298			attrs.ArrayDimensions = obj.dimensions
299	1		node.NodeAttributes = attrs
300	1		res = self.server.iserver.isession.add_nodes([node])
301	1		self._add_refs(obj)
302	1		res[0].StatusCode.check()
303	1		return res[0].AddedNodeId
304
305	1		def add_reference_type(self, obj):
306			node = self._get_node(obj)
307			attrs = ua.ReferenceTypeAttributes()
308			if obj.desc:
309			attrs.Description = ua.LocalizedText(obj.desc)
310			attrs.DisplayName = ua.LocalizedText(obj.displayname)
311			if obj. inversename:
312			attrs.InverseName = ua.LocalizedText(obj.inversename)
313			if obj.abstract:
314			attrs.IsAbstract = obj.abstract
315			if obj.symmetric:
316			attrs.Symmetric = obj.symmetric
317			node.NodeAttributes = attrs
318			res = self.server.iserver.isession.add_nodes([node])
319			self._add_refs(obj)
320			res[0].StatusCode.check()
321		View Code Duplication	return res[0].AddedNodeId
			0 ignored issues – show Duplication introduced 2016-10-15 08:32 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
322
323	1		def add_datatype(self, obj):
324	1		node = self._get_node(obj)
325	1		attrs = ua.DataTypeAttributes()
326	1		if obj.desc:
327	1		attrs.Description = ua.LocalizedText(obj.desc)
328	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
329	1		if obj.abstract:
330			attrs.IsAbstract = obj.abstract
331	1		node.NodeAttributes = attrs
332	1		res = self.server.iserver.isession.add_nodes([node])
333	1		self._add_refs(obj)
334	1		res[0].StatusCode.check()
335	1		return res[0].AddedNodeId
336
337	1		def _add_refs(self, obj):
338	1		if not obj.refs:
339	1		return
340	1		refs = []
341	1		for data in obj.refs:
342	1		ref = ua.AddReferencesItem()
343	1		ref.IsForward = True
344	1		ref.ReferenceTypeId = self.to_nodeid(data.reftype)
345	1		ref.SourceNodeId = self._migrate_ns(obj.nodeid)
346	1		ref.TargetNodeClass = ua.NodeClass.DataType
347	1		ref.TargetNodeId = self._migrate_ns(self.to_nodeid(data.target))
348	1		refs.append(ref)
349	1		self.server.iserver.isession.add_references(refs)
350
351	1		def _sort_nodes_by_parentid(self, ndatas):
352			"""
353			Sort the list of nodes according their parent node in order to respect
354			the dependency between nodes.
355
356			:param nodes: list of NodeDataObjects
357			:returns: list of sorted nodes
358			"""
359	1		_ndatas = list(ndatas)
360			# list of node ids that are already sorted / inserted
361	1		sorted_nodes_ids = []
362			# list of sorted nodes (i.e. XML Elements)
363	1		sorted_ndatas = []
364	1		all_node_ids = [data.nodeid for data in ndatas]
365			# list of namespace indexes that are relevant for this import
366			# we can only respect ordering nodes for namespaces indexes that
367			# are defined in the xml file itself. Thus we assume that all other
368			# references namespaces are already known to the server and should
369			# not create any dependency problems (like "NodeNotFound")
370	1		while len(_ndatas) > 0:
371	1		pop_nodes = []
372	1		for ndata in _ndatas:
373			# Insert nodes that
374			# (1) have no parent / parent_ns is None (e.g. namespace 0)
375			# (2) ns is not in list of relevant namespaces
376	1		if ndata.nodeid.NamespaceIndex not in self.namespaces or \
377			ndata.parent is None or \
378			ndata.parent not in all_node_ids:
379	1		sorted_ndatas.append(ndata)
380	1		sorted_nodes_ids.append(ndata.nodeid)
381	1		pop_nodes.append(ndata)
382			else:
383			# Check if the nodes parent is already in the list of
384			# inserted nodes
385	1		if ndata.parent in sorted_nodes_ids:
386	1		sorted_ndatas.append(ndata)
387	1		sorted_nodes_ids.append(ndata.nodeid)
388	1		pop_nodes.append(ndata)
389			# Remove inserted nodes from the list
390	1		for ndata in pop_nodes:
391	1		_ndatas.pop(_ndatas.index(ndata))
392			return sorted_ndatas
393

FreeOpcUa / python-opcua

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XmlImporter._get_node() A

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