XmlImporter.import_xml() - Code Metrics - Inspection of "also export namespace of referenced nodes" - FreeOpcUa/python-opcua - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#327)

by Olivier

created 2016-10-15 19:19 UTC

XmlImporter.import_xml() F

↳ Parent: XmlImporter

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	20
CRAP Score	12.6176

Importance

Changes	3
Bugs	1	Features	0

Metric	Value
cc	9
dl	0
loc	37
ccs	20
cts	31
cp	0.6452
crap	12.6176
rs	3
c	3
b	1
f	0

"""G
add node defined in XML to address space
format is the one from opc-ua specification
"""
import logging
import sys

from opcua import ua
from opcua.common import xmlparser


def to_python(val, obj, attname):
    if isinstance(obj, ua.NodeId) and attname == "Identifier":
        raise RuntimeError("Error we should parse a NodeId here")
        return ua.NodeId.from_string(val)
    else:
        return xmlparser.ua_type_to_python(val, obj.ua_types[attname])


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.
        """
        print("original ns", self.server.get_namespace_array())
        print("xml ns", namespaces_uris)
        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, ns_uri)
        print("new ns", self.server.get_namespace_array())
        print(namespaces)
        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
            print("ADDED", node)
            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.NamespaceIndex = self.namespaces[nodeid.NamespaceIndex][0]
        return nodeid

    def _get_node(self, obj):
        node = ua.AddNodesItem()
        node.RequestedNewNodeId = self._migrate_ns(obj.nodeid)
        print("\nADDING", node.RequestedNewNodeId, node.RequestedNewNodeId.Identifier)
        node.BrowseName = self._migrate_ns(obj.browsename)
        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)
        print("VAL", obj.value)
        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(sefl, obj):
        ext = getattr(ua, obj.objname)()
        for name, val in obj.body:
            if type(val) is str:
                raise Exception("Error val should a dict", name, val)
            else:
                for attname, v in val:
                    # tow possible values:
                    # either we get value directly
                    # or a dict if it s an object or a list
                    if type(v) is str:
                        setattr(ext, attname, to_python(v, ext, attname))
                    else:
                        # so we habve either an object or a list...
                        obj2 = getattr(ext, attname)
                        if isinstance(obj2, ua.NodeId):
                            for attname2, v2 in v:
                                if attname2 == "Identifier":
                                    obj2 = ua.NodeId.from_string(v2)
                                    setattr(ext, 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 v:
                                my_list.append(xmlparser.ua_type_to_python(v2, vtype))
                            setattr(ext, attname, my_list)
                        else:
                            for attname2, v2 in v:
                                setattr(obj2, attname2, to_python(v2, obj2, attname2))
                            setattr(ext, attname, obj2)
        return ext

    def _add_variable_value(self, obj):
        """
        Returns the value for a Variable based on the objects valuetype. 
        """
        print("KKKKKKKKKKKKKKKKKK", obj, obj.valuetype)
        if obj.valuetype == 'ListOfExtensionObject':
            values = []
            for ext in obj.value:
                extobj = self._make_ext_obj(ext)
                values.append(extobj)
            return values
        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))
        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 theire parent node in order to respect
        the depency 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")
        relevant_namespaces = [str(ns) for ns in self.namespaces.keys()]
        while len(_ndatas) > 0:
            pop_nodes = []
            print(_ndatas)
            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 relevant_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))
        print("SORTD", sorted_ndatas)
        return sorted_ndatas


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

FreeOpcUa / python-opcua

Pull Request — master (#327)

XmlImporter.import_xml() F

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