XmlImporter.add_object() - Code Metrics - Inspection of "Guid ua binary primitive (#338)" - FreeOpcUa/python-opcua - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 5318bd...777e81 )

by Olivier

created 2016-10-21 13:48 UTC

XmlImporter.add_object() A

↳ Parent: XmlImporter

Complexity

Conditions

Size

Total Lines

Duplication

Lines	10
Ratio	90.91 %

Code Coverage

Tests	3
CRAP Score	3.372

Importance

Changes

Metric	Value
cc	2
dl	10
loc	11
ccs	3
cts	10
cp	0.3
crap	3.372
rs	9.4285
c	0
b	0
f	0

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

from opcua import ua
from opcua.common import xmlparser


def ua_type_to_python(val, uatype):
    if uatype.startswith("Int") or uatype.startswith("UInt"):
        return int(val)
    elif uatype in ("Double", "Float"):
        return float(val)
    elif uatype in ("String"):
        return val
    elif uatype in ("Bytes", "Bytes", "ByteString", "ByteArray"):
        if sys.version_info.major > 2:
            return bytes(val, 'utf8')
        else:
            return val
    else:
        raise Exception("uatype nopt handled", uatype, " for val ", val)


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 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 = {}
        self._re_nodeid = re.compile(r"^ns=(?P<ns>\d+[^;]*);i=(?P<i>\d+)")

    def _map_namespaces(self, namespaces_uris, act_server):
        """
        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 = act_server.register_namespace(ns_uri)
            namespaces[ns_index + 1] = (ns_server_index, ns_uri)
            self.logger.info("namespace offset", ns_index + 1, (ns_server_index, ns_uri))
        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._get_node_id(node_id)
        return aliases_mapped

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

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

        # The ordering of nodes currently only works if namespaces are defined in XML.
        # Also, it is recommended not to use node ids without namespace prefix!
        nodes_parsed = self._sort_nodes_by_parentid(self.parser)

        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 _split_node_id(self, value):
        """
        Split the fq node id into namespace and id part.

        :returns: (namespace, id)
        """
        if not value:
            return (None, value)
        r_match = self._re_nodeid.search(value)
        if r_match:
            return r_match.groups()

        return (None, value)

    def _parse_bname(self, bname):
        """
        Parse a browsename and correct the namespace index.
        """
        if bname.find(':') != -1:
            browse_ns, browse_name = bname.split(':')
            if browse_ns:
                ns_server = self.namespaces.get(int(browse_ns), None)
                if ns_server:
                    return '%d:%s' % (ns_server[0], browse_name)
        return bname

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

        :returns: NodeId (str)
        """
        result = value

        node_ns, node_id = self._split_node_id(value)
        if node_ns:
            ns_server = self.namespaces.get(int(node_ns), None)
            if ns_server:
                result = "ns={};i={}".format(ns_server[0], node_id)
        return result

    def _get_node(self, obj):
        node = ua.AddNodesItem()
        node.RequestedNewNodeId = ua.NodeId.from_string(self._get_node_id(obj.nodeid))
        node.BrowseName = ua.QualifiedName.from_string(self._parse_bname(obj.browsename))
        node.NodeClass = getattr(ua.NodeClass, obj.nodetype[2:])
        if obj.parent:
            node.ParentNodeId = ua.NodeId.from_string(self._get_node_id(obj.parent))
        if obj.parentlink:
            node.ReferenceTypeId = self.to_nodeid(self._get_node_id(obj.parentlink))
        if obj.typedef:
            node.TypeDefinition = ua.NodeId.from_string(self._get_node_id(obj.typedef))
        return node

    def to_nodeid(self, nodeid):
        if 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:
                nodeid = self.aliases[nodeid]
            else:
                nodeid = "i={}".format(getattr(ua.ObjectIds, nodeid))
            return ua.NodeId.from_string(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.add_nodes([node])
        self._add_refs(obj)
        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.add_nodes([node])
        self._add_refs(obj)
        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 and len(obj.value) == 1:
        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.add_nodes([node])
        self._add_refs(obj)
        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 have 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(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 value type.
        """
        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:]
            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 == 'DateTime':
            return ua.Variant(dateutil.parser.parse(obj.value), getattr(ua.VariantType, obj.valuetype))
        elif obj.valuetype == 'Guid':

            return ua.Variant(uuid.UUID(obj.value), 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.add_nodes([node])
        self._add_refs(obj)
        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.add_nodes([node])
        self._add_refs(obj)
        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.add_nodes([node])
        self._add_refs(obj)
        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.add_nodes([node])
        self._add_refs(obj)
        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 = ua.NodeId.from_string(self._get_node_id(obj.nodeid))
            ref.TargetNodeClass = ua.NodeClass.DataType
            ref.TargetNodeId = ua.NodeId.from_string(self._get_node_id(data.target))
            refs.append(ref)
        self.server.add_references(refs)

    # FIX: wrong order of node sorting .. need to find out what is wrong
    def _sort_nodes_by_parentid(self, nodes):
        """
        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
        """
        _nodes = list(nodes)
        # list of node ids that are already sorted / inserted
        sorted_nodes_ids = []
        # list of sorted nodes (i.e. XML Elements)
        sorted_nodes = []
        # 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(_nodes) > 0:
            pop_nodes = []
            for node in _nodes:
                insert = None
                # Get the node and parent node namespace and id parts
                node_ns, node_id = self._split_node_id(node.nodeid)
                parent_ns, parent_id = self._split_node_id(node.parent)
                # 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 (parent_ns is None or (len(relevant_namespaces) >= 1 and node_ns not in relevant_namespaces) or
                        parent_id is None):
                    insert = 0
                else:
                    # Check if the nodes parent is already in the list of inserted nodes
                    if node.parent in sorted_nodes_ids:
                        insert = -1
                if insert == 0:
                    sorted_nodes.insert(insert, node)
                    sorted_nodes_ids.insert(insert, node.nodeid)
                    pop_nodes.append(node)
                elif insert == -1:
                    sorted_nodes.append(node)
                    sorted_nodes_ids.append(node.nodeid)
                    pop_nodes.append(node)

            # Remove inserted nodes from the list
            for node in pop_nodes:
                _nodes.pop(_nodes.index(node))
        return sorted_nodes


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			import re
8	1		import uuid
9	1		import dateutil.parser
10
11			from opcua import ua
12	1		from opcua.common import xmlparser
13
14	1
15	1		def ua_type_to_python(val, uatype):
16	1		if uatype.startswith("Int") or uatype.startswith("UInt"):
17	1		return int(val)
18			elif uatype in ("Double", "Float"):
19	1		return float(val)
20	1		elif uatype in ("String"):
21	1		return val
22	1		elif uatype in ("Bytes", "Bytes", "ByteString", "ByteArray"):
23	1		if sys.version_info.major > 2:
24	1		return bytes(val, 'utf8')
25	1		else:
26			return val
27	1		else:
28	1		raise Exception("uatype nopt handled", uatype, " for val ", val)
29
30
31			def to_python(val, obj, attname):
32			if isinstance(obj, ua.NodeId) and attname == "Identifier":
33			raise RuntimeError("Error we should parse a NodeId here")
34			return ua.NodeId.from_string(val)
35			else:
36			return ua_type_to_python(val, obj.ua_types[attname])
37
38
39			class XmlImporter(object):
40	1
41	1		def __init__(self, server):
42	1		self.logger = logging.getLogger(__name__)
43	1		self.parser = None
44	1		self.server = server
45	1		self.namespaces = {}
46	1		self.aliases = {}
47	1		self._re_nodeid = re.compile(r"^ns=(?P<ns>\d+[^;]*);i=(?P<i>\d+)")
48	1
49	1		def _map_namespaces(self, namespaces_uris, act_server):
50	1		"""
51	1		creates a mapping between the namespaces in the xml file and in the server.
52			if not present the namespace is registered.
53	1		"""
54	1		namespaces = {}
55			for ns_index, ns_uri in enumerate(namespaces_uris):
56	1		ns_server_index = act_server.register_namespace(ns_uri)
57			namespaces[ns_index + 1] = (ns_server_index, ns_uri)
58			self.logger.info("namespace offset", ns_index + 1, (ns_server_index, ns_uri))
59	1		return namespaces
60
61	1		def _map_aliases(self, aliases):
62	1		"""
63	1		maps the import aliases to the correct namespaces
64			"""
65			aliases_mapped = {}
66	1		for alias, node_id in aliases.items():
67			aliases_mapped[alias] = self._get_node_id(node_id)
68	1		return aliases_mapped
69
70	1		def import_xml(self, xmlpath, act_server):
71	1		"""
72	1		import xml and return added nodes
73	1		"""
74	1		self.logger.info("Importing XML file %s", xmlpath)
75	1		self.parser = xmlparser.XMLParser(xmlpath, act_server)
76	1
77	1		self.namespaces = self._map_namespaces(self.parser.get_used_namespaces(), act_server)
78	1		self.aliases = self._map_aliases(self.parser.get_aliases())
79	1
80			# The ordering of nodes currently only works if namespaces are defined in XML.
81	1		# Also, it is recommended not to use node ids without namespace prefix!
82			nodes_parsed = self._sort_nodes_by_parentid(self.parser)
83
84			nodes = []
85			for nodedata in nodes_parsed: # self.parser:
86			if nodedata.nodetype == 'UAObject':
87			node = self.add_object(nodedata)
88			elif nodedata.nodetype == 'UAObjectType':
89			node = self.add_object_type(nodedata)
90			elif nodedata.nodetype == 'UAVariable':
91			node = self.add_variable(nodedata)
92	1		elif nodedata.nodetype == 'UAVariableType':
93	1		node = self.add_variable_type(nodedata)
94	1		elif nodedata.nodetype == 'UAReferenceType':
95	1		node = self.add_reference_type(nodedata)
96			elif nodedata.nodetype == 'UADataType':
97	1		node = self.add_datatype(nodedata)
98	1		elif nodedata.nodetype == 'UAMethod':
99			node = self.add_method(nodedata)
100	1		else:
101	1		self.logger.warning("Not implemented node type: %s ", nodedata.nodetype)
102	1		continue
103	1		nodes.append(node)
104	1		return nodes
105
106	1		def _split_node_id(self, value):
107			"""
108	1		Split the fq node id into namespace and id part.
109
110	1		:returns: (namespace, id)
111			"""
112	1		if not value:
113	1		return (None, value)
114	1		r_match = self._re_nodeid.search(value)
115			if r_match:
116	1		return r_match.groups()
117
118			return (None, value)
119
120			def _parse_bname(self, bname):
121			"""
122			Parse a browsename and correct the namespace index.
123			"""
124			if bname.find(':') != -1:
125			browse_ns, browse_name = bname.split(':')
126			if browse_ns:
127			ns_server = self.namespaces.get(int(browse_ns), None)
128			if ns_server:
129			return '%d:%s' % (ns_server[0], browse_name)
130			return bname
131
132			def _get_node_id(self, value):
133			"""
134			Check if the nodeid given in the xml model file must be converted
135	1		to a already existing namespace id based on the files namespace uri
136
137			:returns: NodeId (str)
138			"""
139			result = value
140
141			node_ns, node_id = self._split_node_id(value)
142			if node_ns:
143			ns_server = self.namespaces.get(int(node_ns), None)
144			if ns_server:
145			result = "ns={};i={}".format(ns_server[0], node_id)
146			return result
147
148			def _get_node(self, obj):
149			node = ua.AddNodesItem()
150			node.RequestedNewNodeId = ua.NodeId.from_string(self._get_node_id(obj.nodeid))
151			node.BrowseName = ua.QualifiedName.from_string(self._parse_bname(obj.browsename))
152			node.NodeClass = getattr(ua.NodeClass, obj.nodetype[2:])
153	1		if obj.parent:
154			node.ParentNodeId = ua.NodeId.from_string(self._get_node_id(obj.parent))
155			if obj.parentlink:
156			node.ReferenceTypeId = self.to_nodeid(self._get_node_id(obj.parentlink))
157			if obj.typedef:
158			node.TypeDefinition = ua.NodeId.from_string(self._get_node_id(obj.typedef))
159			return node
160
161			def to_nodeid(self, nodeid):
162			if not nodeid:
163			return ua.NodeId(ua.ObjectIds.String)
164			elif "=" in nodeid:
165			return ua.NodeId.from_string(nodeid)
166			elif hasattr(ua.ObjectIds, nodeid):
167			return ua.NodeId(getattr(ua.ObjectIds, nodeid))
168			else:
169	1		if nodeid in self.aliases:
170			nodeid = self.aliases[nodeid]
171			else:
172			nodeid = "i={}".format(getattr(ua.ObjectIds, nodeid))
173			return ua.NodeId.from_string(nodeid)
174		View Code Duplication
			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...
175			def add_object(self, obj):
176			node = self._get_node(obj)
177			attrs = ua.ObjectAttributes()
178			if obj.desc:
179			attrs.Description = ua.LocalizedText(obj.desc)
180			attrs.DisplayName = ua.LocalizedText(obj.displayname)
181	1		attrs.EventNotifier = obj.eventnotifier
182	1		node.NodeAttributes = attrs
183	1		res = self.server.add_nodes([node])
184			self._add_refs(obj)
185			return res[0].AddedNodeId
186		View Code Duplication
			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...
187			def add_object_type(self, obj):
188			node = self._get_node(obj)
189			attrs = ua.ObjectTypeAttributes()
190			if obj.desc:
191			attrs.Description = ua.LocalizedText(obj.desc)
192			attrs.DisplayName = ua.LocalizedText(obj.displayname)
193			attrs.IsAbstract = obj.abstract
194			node.NodeAttributes = attrs
195			res = self.server.add_nodes([node])
196			self._add_refs(obj)
197			return res[0].AddedNodeId
198
199			def add_variable(self, obj):
200			node = self._get_node(obj)
201			attrs = ua.VariableAttributes()
202			if obj.desc:
203			attrs.Description = ua.LocalizedText(obj.desc)
204			attrs.DisplayName = ua.LocalizedText(obj.displayname)
205			attrs.DataType = self.to_nodeid(obj.datatype)
206			# if obj.value and len(obj.value) == 1:
207			if obj.value is not None:
208			attrs.Value = self._add_variable_value(obj,)
209			if obj.rank:
210			attrs.ValueRank = obj.rank
211			if obj.accesslevel:
212			attrs.AccessLevel = obj.accesslevel
213			if obj.useraccesslevel:
214			attrs.UserAccessLevel = obj.useraccesslevel
215			if obj.minsample:
216			attrs.MinimumSamplingInterval = obj.minsample
217			if obj.dimensions:
218			attrs.ArrayDimensions = obj.dimensions
219			node.NodeAttributes = attrs
220			res = self.server.add_nodes([node])
221			self._add_refs(obj)
222			return res[0].AddedNodeId
223
224			def _make_ext_obj(sefl, obj):
225			ext = getattr(ua, obj.objname)()
226			for name, val in obj.body:
227			if type(val) is str:
228			raise Exception("Error val should a dict", name, val)
229			else:
230			for attname, v in val:
231			# tow possible values:
232			# either we get value directly
233			# or a dict if it s an object or a list
234			if type(v) is str:
235			setattr(ext, attname, to_python(v, ext, attname))
236			else:
237			# so we have either an object or a list...
238			obj2 = getattr(ext, attname)
239			if isinstance(obj2, ua.NodeId):
240			for attname2, v2 in v:
241			if attname2 == "Identifier":
242			obj2 = ua.NodeId.from_string(v2)
243			setattr(ext, attname, obj2)
244			break
245			elif not isinstance(obj2, ua.NodeId) and not hasattr(obj2, "ua_types"):
246			# we probably have a list
247			my_list = []
248			for vtype, v2 in v:
249			my_list.append(ua_type_to_python(v2, vtype))
250			setattr(ext, attname, my_list)
251			else:
252			for attname2, v2 in v:
253			setattr(obj2, attname2, to_python(v2, obj2, attname2))
254			setattr(ext, attname, obj2)
255			return ext
256
257			def _add_variable_value(self, obj):
258			"""
259			Returns the value for a Variable based on the objects value type.
260			"""
261			if obj.valuetype == 'ListOfExtensionObject':
262			values = []
263			for ext in obj.value:
264			extobj = self._make_ext_obj(ext)
265			values.append(extobj)
266			return values
267			elif obj.valuetype.startswith("ListOf"):
268			vtype = obj.valuetype[6:]
269			return [getattr(ua, vtype)(v) for v in obj.value]
270			elif obj.valuetype == 'ExtensionObject':
271			extobj = self._make_ext_obj(obj.value)
272			return ua.Variant(extobj, getattr(ua.VariantType, obj.valuetype))
273			elif obj.valuetype == 'DateTime':
274			return ua.Variant(dateutil.parser.parse(obj.value), getattr(ua.VariantType, obj.valuetype))
275		View Code Duplication	elif obj.valuetype == 'Guid':
			0 ignored issues – show Duplication introduced 2016-10-20 14:32 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
276			return ua.Variant(uuid.UUID(obj.value), getattr(ua.VariantType, obj.valuetype))
277			else:
278			return ua.Variant(obj.value, getattr(ua.VariantType, obj.valuetype))
279
280			def add_variable_type(self, obj):
281			node = self._get_node(obj)
282			attrs = ua.VariableTypeAttributes()
283			if obj.desc:
284			attrs.Description = ua.LocalizedText(obj.desc)
285			attrs.DisplayName = ua.LocalizedText(obj.displayname)
286			attrs.DataType = self.to_nodeid(obj.datatype)
287			if obj.value and len(obj.value) == 1:
288			attrs.Value = obj.value[0]
289			if obj.rank:
290			attrs.ValueRank = obj.rank
291			if obj.abstract:
292			attrs.IsAbstract = obj.abstract
293			if obj.dimensions:
294			attrs.ArrayDimensions = obj.dimensions
295		View Code Duplication	node.NodeAttributes = attrs
			0 ignored issues – show Duplication introduced 2016-10-08 10:23 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
296			res = self.server.add_nodes([node])
297			self._add_refs(obj)
298			return res[0].AddedNodeId
299
300			def add_method(self, obj):
301			node = self._get_node(obj)
302			attrs = ua.MethodAttributes()
303			if obj.desc:
304			attrs.Description = ua.LocalizedText(obj.desc)
305			attrs.DisplayName = ua.LocalizedText(obj.displayname)
306			if obj.accesslevel:
307			attrs.AccessLevel = obj.accesslevel
308			if obj.useraccesslevel:
309			attrs.UserAccessLevel = obj.useraccesslevel
310			if obj.minsample:
311			attrs.MinimumSamplingInterval = obj.minsample
312			if obj.dimensions:
313			attrs.ArrayDimensions = obj.dimensions
314		View Code Duplication	node.NodeAttributes = attrs
			0 ignored issues – show Duplication introduced 2016-10-18 07:34 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
315			res = self.server.add_nodes([node])
316			self._add_refs(obj)
317			return res[0].AddedNodeId
318
319			def add_reference_type(self, obj):
320			node = self._get_node(obj)
321			attrs = ua.ReferenceTypeAttributes()
322			if obj.desc:
323			attrs.Description = ua.LocalizedText(obj.desc)
324			attrs.DisplayName = ua.LocalizedText(obj.displayname)
325			if obj. inversename:
326			attrs.InverseName = ua.LocalizedText(obj.inversename)
327			if obj.abstract:
328			attrs.IsAbstract = obj.abstract
329			if obj.symmetric:
330			attrs.Symmetric = obj.symmetric
331		View Code Duplication	node.NodeAttributes = attrs
			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...
332			res = self.server.add_nodes([node])
333			self._add_refs(obj)
334			return res[0].AddedNodeId
335
336			def add_datatype(self, obj):
337			node = self._get_node(obj)
338			attrs = ua.DataTypeAttributes()
339			if obj.desc:
340			attrs.Description = ua.LocalizedText(obj.desc)
341			attrs.DisplayName = ua.LocalizedText(obj.displayname)
342			if obj.abstract:
343			attrs.IsAbstract = obj.abstract
344			node.NodeAttributes = attrs
345			res = self.server.add_nodes([node])
346			self._add_refs(obj)
347			return res[0].AddedNodeId
348
349			def _add_refs(self, obj):
350			if not obj.refs:
351			return
352			refs = []
353			for data in obj.refs:
354			ref = ua.AddReferencesItem()
355			ref.IsForward = True
356			ref.ReferenceTypeId = self.to_nodeid(data.reftype)
357			ref.SourceNodeId = ua.NodeId.from_string(self._get_node_id(obj.nodeid))
358			ref.TargetNodeClass = ua.NodeClass.DataType
359			ref.TargetNodeId = ua.NodeId.from_string(self._get_node_id(data.target))
360			refs.append(ref)
361			self.server.add_references(refs)
362
363			# FIX: wrong order of node sorting .. need to find out what is wrong
364			def _sort_nodes_by_parentid(self, nodes):
365			"""
366			Sort the list of nodes according their parent node in order to respect
367			the dependency between nodes.
368
369			:param nodes: list of NodeDataObjects
370			:returns: list of sorted nodes
371			"""
372			_nodes = list(nodes)
373			# list of node ids that are already sorted / inserted
374			sorted_nodes_ids = []
375			# list of sorted nodes (i.e. XML Elements)
376			sorted_nodes = []
377			# list of namespace indexes that are relevant for this import
378			# we can only respect ordering nodes for namespaces indexes that
379			# are defined in the xml file itself. Thus we assume that all other
380			# references namespaces are already known to the server and should
381			# not create any dependency problems (like "NodeNotFound")
382			relevant_namespaces = [str(ns) for ns in self.namespaces.keys()]
383			while len(_nodes) > 0:
384			pop_nodes = []
385			for node in _nodes:
386			insert = None
387			# Get the node and parent node namespace and id parts
388			node_ns, node_id = self._split_node_id(node.nodeid)
389			parent_ns, parent_id = self._split_node_id(node.parent)
390			# Insert nodes that
391			# (1) have no parent / parent_ns is None (e.g. namespace 0)
392			# (2) ns is not in list of relevant namespaces
393			if (parent_ns is None or (len(relevant_namespaces) >= 1 and node_ns not in relevant_namespaces) or
394			parent_id is None):
395			insert = 0
396			else:
397			# Check if the nodes parent is already in the list of inserted nodes
398			if node.parent in sorted_nodes_ids:
399			insert = -1
400			if insert == 0:
401			sorted_nodes.insert(insert, node)
402			sorted_nodes_ids.insert(insert, node.nodeid)
403			pop_nodes.append(node)
404			elif insert == -1:
405			sorted_nodes.append(node)
406			sorted_nodes_ids.append(node.nodeid)
407			pop_nodes.append(node)
408
409			# Remove inserted nodes from the list
410			for node in pop_nodes:
411			_nodes.pop(_nodes.index(node))
412			return sorted_nodes
413

FreeOpcUa / python-opcua

Push — master ( 5318bd...777e81 )

XmlImporter.add_object() A

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

Filter issues like