XmlImporter.add_object() - Code Metrics - Inspection of "allow to import and export xml client side" - FreeOpcUa/python-opcua - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 4eddf2...83c23e )

by Olivier

created 2016-12-30 10:07 UTC

XmlImporter.add_object() A

↳ Parent: XmlImporter

Complexity

Conditions

Size

Total Lines

Duplication

Lines	11
Ratio	91.67 %

Code Coverage

Tests	12
CRAP Score	2

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	2
c	1
b	0
f	0
dl	11
loc	12
ccs	12
cts	12
cp	1
crap	2
rs	9.4285

"""
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 opcua
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 _add_node(self, node):
        if isinstance(self.server, opcua.server.server.Server):
            return self.server.iserver.isession.add_nodes([node])
        else:
            return self.server.uaclient.add_nodes([node])

    def _add_references(self, refs):
        if isinstance(self.server, opcua.server.server.Server):
            return self.server.iserver.isession.add_references(refs)
        else:
            return self.server.uaclient.add_references(refs)
    
    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._add_node(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._add_node(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._add_node(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 ua.Variant(values, ua.VariantType.ExtensionObject)
        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 ua.Variant([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._add_node(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._add_node(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._add_node(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._add_node(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._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 opcua
10	1		from opcua import ua
11	1		from opcua.common import xmlparser
12
13
14	1		class XmlImporter(object):
15
16	1		def __init__(self, server):
17	1		self.logger = logging.getLogger(__name__)
18	1		self.parser = None
19	1		self.server = server
20	1		self.namespaces = {}
21	1		self.aliases = {}
22
23	1		def _map_namespaces(self, namespaces_uris):
24			"""
25			creates a mapping between the namespaces in the xml file and in the server.
26			if not present the namespace is registered.
27			"""
28	1		namespaces = {}
29	1		for ns_index, ns_uri in enumerate(namespaces_uris):
30	1		ns_server_index = self.server.register_namespace(ns_uri)
31	1		namespaces[ns_index + 1] = ns_server_index
32	1		return namespaces
33
34	1		def _map_aliases(self, aliases):
35			"""
36			maps the import aliases to the correct namespaces
37			"""
38	1		aliases_mapped = {}
39	1		for alias, node_id in aliases.items():
40	1		aliases_mapped[alias] = self._migrate_ns(self.to_nodeid(node_id))
41	1		return aliases_mapped
42
43	1		def import_xml(self, xmlpath):
44			"""
45			import xml and return added nodes
46			"""
47	1		self.logger.info("Importing XML file %s", xmlpath)
48	1		self.parser = xmlparser.XMLParser(xmlpath)
49
50	1		dnodes = self.parser.get_node_datas()
51	1		dnodes = self.make_objects(dnodes)
52
53	1		self.namespaces = self._map_namespaces(self.parser.get_used_namespaces())
54	1		self.aliases = self._map_aliases(self.parser.get_aliases())
55
56	1		nodes_parsed = self._sort_nodes_by_parentid(dnodes)
57
58	1		nodes = []
59	1		for nodedata in nodes_parsed: # self.parser:
60	1		if nodedata.nodetype == 'UAObject':
61	1		node = self.add_object(nodedata)
62	1		elif nodedata.nodetype == 'UAObjectType':
63	1		node = self.add_object_type(nodedata)
64	1		elif nodedata.nodetype == 'UAVariable':
65	1		node = self.add_variable(nodedata)
66	1		elif nodedata.nodetype == 'UAVariableType':
67			node = self.add_variable_type(nodedata)
68	1		elif nodedata.nodetype == 'UAReferenceType':
69			node = self.add_reference_type(nodedata)
70	1		elif nodedata.nodetype == 'UADataType':
71	1		node = self.add_datatype(nodedata)
72	1		elif nodedata.nodetype == 'UAMethod':
73	1		node = self.add_method(nodedata)
74			else:
75			self.logger.warning("Not implemented node type: %s ", nodedata.nodetype)
76			continue
77	1		nodes.append(node)
78	1		return nodes
79
80	1		def _add_node(self, node):
81	1		if isinstance(self.server, opcua.server.server.Server):
82	1		return self.server.iserver.isession.add_nodes([node])
83			else:
84	1		return self.server.uaclient.add_nodes([node])
85
86	1		def _add_references(self, refs):
87	1		if isinstance(self.server, opcua.server.server.Server):
88	1		return self.server.iserver.isession.add_references(refs)
89			else:
90	1		return self.server.uaclient.add_references(refs)
91
92	1		def make_objects(self, node_datas):
93	1		new_nodes = []
94	1		for ndata in node_datas:
95	1		ndata.nodeid = ua.NodeId.from_string(ndata.nodeid)
96	1		ndata.browsename = ua.QualifiedName.from_string(ndata.browsename)
97	1		if ndata.parent:
98	1		ndata.parent = ua.NodeId.from_string(ndata.parent)
99	1		if ndata.parentlink:
100	1		ndata.parentlink = self.to_nodeid(ndata.parentlink)
101	1		if ndata.typedef:
102	1		ndata.typedef = self.to_nodeid(ndata.typedef)
103	1		new_nodes.append(ndata)
104	1		return new_nodes
105
106	1		def _migrate_ns(self, nodeid):
107			"""
108			Check if the index of nodeid or browsename given in the xml model file
109			must be converted to a already existing namespace id based on the files
110			namespace uri
111
112			:returns: NodeId (str)
113			"""
114	1		if nodeid.NamespaceIndex in self.namespaces:
115	1		nodeid = copy(nodeid)
116	1		nodeid.NamespaceIndex = self.namespaces[nodeid.NamespaceIndex]
117	1		return nodeid
118
119	1		def _get_node(self, obj):
120	1		node = ua.AddNodesItem()
121	1		node.RequestedNewNodeId = self._migrate_ns(obj.nodeid)
122	1		node.BrowseName = self._migrate_ns(obj.browsename)
123	1		self.logger.info("Importing xml node (%s, %s) as (%s %s)", obj.browsename, obj.nodeid, node.BrowseName, node.RequestedNewNodeId)
124	1		node.NodeClass = getattr(ua.NodeClass, obj.nodetype[2:])
125	1		if obj.parent:
126	1		node.ParentNodeId = self._migrate_ns(obj.parent)
127	1		if obj.parentlink:
128	1		node.ReferenceTypeId = self._migrate_ns(obj.parentlink)
129	1		if obj.typedef:
130	1		node.TypeDefinition = self._migrate_ns(obj.typedef)
131	1		return node
132
133	1		def to_nodeid(self, nodeid):
134	1		if isinstance(nodeid, ua.NodeId):
135			return nodeid
136	1		elif not nodeid:
137			return ua.NodeId(ua.ObjectIds.String)
138	1		elif "=" in nodeid:
139	1		return ua.NodeId.from_string(nodeid)
140	1		elif hasattr(ua.ObjectIds, nodeid):
141	1		return ua.NodeId(getattr(ua.ObjectIds, nodeid))
142			else:
143	1		if nodeid in self.aliases:
144	1		return self.aliases[nodeid]
145			else:
146			return ua.NodeId(getattr(ua.ObjectIds, nodeid))
147
148	1		def add_object(self, obj):
149	1	View Code Duplication	node = self._get_node(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...
150	1		attrs = ua.ObjectAttributes()
151	1		if obj.desc:
152	1		attrs.Description = ua.LocalizedText(obj.desc)
153	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
154	1		attrs.EventNotifier = obj.eventnotifier
155	1		node.NodeAttributes = attrs
156	1		res = self._add_node(node)
157	1		self._add_refs(obj)
158	1		res[0].StatusCode.check()
159	1		return res[0].AddedNodeId
160
161	1		def add_object_type(self, obj):
162	1	View Code Duplication	node = self._get_node(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...
163	1		attrs = ua.ObjectTypeAttributes()
164	1		if obj.desc:
165			attrs.Description = ua.LocalizedText(obj.desc)
166	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
167	1		attrs.IsAbstract = obj.abstract
168	1		node.NodeAttributes = attrs
169	1		res = self._add_node(node)
170	1		self._add_refs(obj)
171	1		res[0].StatusCode.check()
172	1		return res[0].AddedNodeId
173
174	1		def add_variable(self, obj):
175	1		node = self._get_node(obj)
176	1		attrs = ua.VariableAttributes()
177	1		if obj.desc:
178	1		attrs.Description = ua.LocalizedText(obj.desc)
179	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
180	1		attrs.DataType = self.to_nodeid(obj.datatype)
181	1		if obj.value is not None:
182	1		attrs.Value = self._add_variable_value(obj,)
183	1		if obj.rank:
184	1		attrs.ValueRank = obj.rank
185	1		if obj.accesslevel:
186			attrs.AccessLevel = obj.accesslevel
187	1		if obj.useraccesslevel:
188			attrs.UserAccessLevel = obj.useraccesslevel
189	1		if obj.minsample:
190			attrs.MinimumSamplingInterval = obj.minsample
191	1		if obj.dimensions:
192	1		attrs.ArrayDimensions = obj.dimensions
193	1		node.NodeAttributes = attrs
194	1		res = self._add_node(node)
195	1		self._add_refs(obj)
196	1		res[0].StatusCode.check()
197	1		return res[0].AddedNodeId
198
199	1		def _make_ext_obj(self, obj):
200	1		ext = getattr(ua, obj.objname)()
201	1		for name, val in obj.body:
202	1		if isinstance(val, str):
203			raise Exception("Error val should a dict", name, val)
204			else:
205	1		for attname, v in val:
206	1		self._set_attr(ext, attname, v)
207	1		return ext
208
209	1		def _set_attr(self, obj, attname, val):
210			# tow possible values:
211			# either we get value directly
212			# or a dict if it s an object or a list
213	1		if isinstance(val, str):
214	1		pval = xmlparser.ua_type_to_python(val, obj.ua_types[attname])
215	1		setattr(obj, attname, pval)
216			else:
217			# so we have either an object or a list...
218	1		obj2 = getattr(obj, attname)
219	1		if isinstance(obj2, ua.NodeId): # NodeId representation does not follow common rules!!
220	1		for attname2, v2 in val:
221	1		if attname2 == "Identifier":
222	1		obj2 = ua.NodeId.from_string(v2)
223	1		setattr(obj, attname, obj2)
224	1		break
225	1		elif not isinstance(obj2, ua.NodeId) and not hasattr(obj2, "ua_types"):
226			# we probably have a list
227	1		my_list = []
228	1		for vtype, v2 in val:
229	1		my_list.append(xmlparser.ua_type_to_python(v2, vtype))
230	1		setattr(obj, attname, my_list)
231			else:
232	1		for attname2, v2 in val:
233	1		self._set_attr(obj2, attname2, v2)
234	1		setattr(obj, attname, obj2)
235
236	1		def _add_variable_value(self, obj):
237			"""
238			Returns the value for a Variable based on the objects value type.
239			"""
240	1		self.logger.debug("Setting value with type %s and value %s", obj.valuetype, obj.value)
241	1		if obj.valuetype == 'ListOfExtensionObject':
242	1		values = []
243	1		for ext in obj.value:
244	1		extobj = self._make_ext_obj(ext)
245	1		values.append(extobj)
246	1		return ua.Variant(values, ua.VariantType.ExtensionObject)
247	1		elif obj.valuetype == 'ListOfGuid':
248	1		return ua.Variant([
249			uuid.UUID(guid) for guid in obj.value
250			], getattr(ua.VariantType, obj.valuetype[6:]))
251	1		elif obj.valuetype.startswith("ListOf"):
252	1		vtype = obj.valuetype[6:]
253	1		if hasattr(ua.ua_binary.Primitives, vtype):
254	1		return ua.Variant(obj.value, getattr(ua.VariantType, vtype))
255			else:
256	1		return ua.Variant([getattr(ua, vtype)(v) for v in obj.value])
257	1		elif obj.valuetype == 'ExtensionObject':
258	1		extobj = self._make_ext_obj(obj.value)
259	1		return ua.Variant(extobj, getattr(ua.VariantType, obj.valuetype))
260	1		elif obj.valuetype == 'Guid':
261	1		return ua.Variant(uuid.UUID(obj.value), getattr(ua.VariantType, obj.valuetype))
262	1		elif obj.valuetype == 'LocalizedText':
263	1		ltext = ua.LocalizedText()
264	1		for name, val in obj.value:
265	1		if name == "Text":
266	1		ltext.Text = val.encode("utf-8")
267			else:
268			self.logger.warning("While parsing localizedText value, unkown element: %s with val: %s", name, val)
269	1		return ua.Variant(ltext, ua.VariantType.LocalizedText)
270	1		elif obj.valuetype == 'NodeId':
271	1		return ua.Variant(ua.NodeId.from_string(obj.value))
272			else:
273	1		return ua.Variant(obj.value, getattr(ua.VariantType, obj.valuetype))
274
275	1		def add_variable_type(self, obj):
276			node = self._get_node(obj)
277			attrs = ua.VariableTypeAttributes()
278			if obj.desc:
279			attrs.Description = ua.LocalizedText(obj.desc)
280			attrs.DisplayName = ua.LocalizedText(obj.displayname)
281			attrs.DataType = self.to_nodeid(obj.datatype)
282			if obj.value and len(obj.value) == 1:
283			attrs.Value = obj.value[0]
284			if obj.rank:
285			attrs.ValueRank = obj.rank
286			if obj.abstract:
287			attrs.IsAbstract = obj.abstract
288			if obj.dimensions:
289			attrs.ArrayDimensions = obj.dimensions
290			node.NodeAttributes = attrs
291			res = self._add_node(node)
292			self._add_refs(obj)
293			res[0].StatusCode.check()
294			return res[0].AddedNodeId
295
296	1		def add_method(self, obj):
297	1	View Code Duplication	node = self._get_node(obj)
			0 ignored issues – show Duplication introduced 2016-10-10 16:54 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
298	1		attrs = ua.MethodAttributes()
299	1		if obj.desc:
300	1		attrs.Description = ua.LocalizedText(obj.desc)
301	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
302	1		if obj.accesslevel:
303			attrs.AccessLevel = obj.accesslevel
304	1		if obj.useraccesslevel:
305			attrs.UserAccessLevel = obj.useraccesslevel
306	1		if obj.minsample:
307			attrs.MinimumSamplingInterval = obj.minsample
308	1		if obj.dimensions:
309			attrs.ArrayDimensions = obj.dimensions
310	1		node.NodeAttributes = attrs
311	1		res = self._add_node(node)
312	1		self._add_refs(obj)
313	1		res[0].StatusCode.check()
314	1		return res[0].AddedNodeId
315
316	1		def add_reference_type(self, obj):
317		View Code Duplication	node = self._get_node(obj)
			0 ignored issues – show Duplication introduced 2016-10-10 16:54 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
318			attrs = ua.ReferenceTypeAttributes()
319			if obj.desc:
320			attrs.Description = ua.LocalizedText(obj.desc)
321			attrs.DisplayName = ua.LocalizedText(obj.displayname)
322			if obj. inversename:
323			attrs.InverseName = ua.LocalizedText(obj.inversename)
324			if obj.abstract:
325			attrs.IsAbstract = obj.abstract
326			if obj.symmetric:
327			attrs.Symmetric = obj.symmetric
328			node.NodeAttributes = attrs
329			res = self._add_node(node)
330			self._add_refs(obj)
331			res[0].StatusCode.check()
332			return res[0].AddedNodeId
333
334	1		def add_datatype(self, obj):
335	1	View Code Duplication	node = self._get_node(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...
336	1		attrs = ua.DataTypeAttributes()
337	1		if obj.desc:
338	1		attrs.Description = ua.LocalizedText(obj.desc)
339	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
340	1		if obj.abstract:
341			attrs.IsAbstract = obj.abstract
342	1		node.NodeAttributes = attrs
343	1		res = self._add_node(node)
344	1		self._add_refs(obj)
345	1		res[0].StatusCode.check()
346	1		return res[0].AddedNodeId
347
348	1		def _add_refs(self, obj):
349	1		if not obj.refs:
350	1		return
351	1		refs = []
352	1		for data in obj.refs:
353	1		ref = ua.AddReferencesItem()
354	1		ref.IsForward = True
355	1		ref.ReferenceTypeId = self.to_nodeid(data.reftype)
356	1		ref.SourceNodeId = self._migrate_ns(obj.nodeid)
357	1		ref.TargetNodeClass = ua.NodeClass.DataType
358	1		ref.TargetNodeId = self._migrate_ns(self.to_nodeid(data.target))
359	1		refs.append(ref)
360	1		self._add_references(refs)
361
362	1		def _sort_nodes_by_parentid(self, ndatas):
363			"""
364			Sort the list of nodes according their parent node in order to respect
365			the dependency between nodes.
366
367			:param nodes: list of NodeDataObjects
368			:returns: list of sorted nodes
369			"""
370	1		_ndatas = list(ndatas)
371			# list of node ids that are already sorted / inserted
372	1		sorted_nodes_ids = []
373			# list of sorted nodes (i.e. XML Elements)
374	1		sorted_ndatas = []
375	1		all_node_ids = [data.nodeid for data in ndatas]
376			# list of namespace indexes that are relevant for this import
377			# we can only respect ordering nodes for namespaces indexes that
378			# are defined in the xml file itself. Thus we assume that all other
379			# references namespaces are already known to the server and should
380			# not create any dependency problems (like "NodeNotFound")
381	1		while len(_ndatas) > 0:
382	1		pop_nodes = []
383	1		for ndata in _ndatas:
384			# Insert nodes that
385			# (1) have no parent / parent_ns is None (e.g. namespace 0)
386			# (2) ns is not in list of relevant namespaces
387	1		if ndata.nodeid.NamespaceIndex not in self.namespaces or \
388			ndata.parent is None or \
389			ndata.parent not in all_node_ids:
390	1		sorted_ndatas.append(ndata)
391	1		sorted_nodes_ids.append(ndata.nodeid)
392	1		pop_nodes.append(ndata)
393			else:
394			# Check if the nodes parent is already in the list of
395			# inserted nodes
396	1		if ndata.parent in sorted_nodes_ids:
397	1		sorted_ndatas.append(ndata)
398	1		sorted_nodes_ids.append(ndata.nodeid)
399	1		pop_nodes.append(ndata)
400			# Remove inserted nodes from the list
401	1		for ndata in pop_nodes:
402	1		_ndatas.pop(_ndatas.index(ndata))
403			return sorted_ndatas
404

FreeOpcUa / python-opcua

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XmlImporter.add_object() A

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