XmlImporter._add_references() - Code Metrics - Inspection of "better information when importer fails" - FreeOpcUa/python-opcua - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 5ca03b...453bfe )

by Olivier

created 2017-01-07 12:43 UTC

XmlImporter._add_references() A

↳ Parent: XmlImporter

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	2

Importance

Changes

Metric	Value
cc	2
c	0
b	0
f	0
dl	0
loc	5
ccs	4
cts	4
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:
            try:
                node = self._add_node_data(nodedata)
            except Exception:
                self.logger.warning("failure adding node %s", nodedata)
                raise
            nodes.append(node)
        return nodes

    def _add_node_data(self, nodedata):
        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)
        return node

    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		try:
61	1		node = self._add_node_data(nodedata)
62			except Exception:
63			self.logger.warning("failure adding node %s", nodedata)
64			raise
65	1		nodes.append(node)
66	1		return nodes
67
68	1		def _add_node_data(self, nodedata):
69	1		if nodedata.nodetype == 'UAObject':
70	1		node = self.add_object(nodedata)
71	1		elif nodedata.nodetype == 'UAObjectType':
72	1		node = self.add_object_type(nodedata)
73	1		elif nodedata.nodetype == 'UAVariable':
74	1		node = self.add_variable(nodedata)
75	1		elif nodedata.nodetype == 'UAVariableType':
76			node = self.add_variable_type(nodedata)
77	1		elif nodedata.nodetype == 'UAReferenceType':
78			node = self.add_reference_type(nodedata)
79	1		elif nodedata.nodetype == 'UADataType':
80	1		node = self.add_datatype(nodedata)
81	1		elif nodedata.nodetype == 'UAMethod':
82	1		node = self.add_method(nodedata)
83			else:
84			self.logger.warning("Not implemented node type: %s ", nodedata.nodetype)
85	1		return node
86
87	1		def _add_node(self, node):
88	1		if isinstance(self.server, opcua.server.server.Server):
89	1		return self.server.iserver.isession.add_nodes([node])
90			else:
91	1		return self.server.uaclient.add_nodes([node])
92
93	1		def _add_references(self, refs):
94	1		if isinstance(self.server, opcua.server.server.Server):
95	1		return self.server.iserver.isession.add_references(refs)
96			else:
97	1		return self.server.uaclient.add_references(refs)
98
99	1		def make_objects(self, node_datas):
100	1		new_nodes = []
101	1		for ndata in node_datas:
102	1		ndata.nodeid = ua.NodeId.from_string(ndata.nodeid)
103	1		ndata.browsename = ua.QualifiedName.from_string(ndata.browsename)
104	1		if ndata.parent:
105	1		ndata.parent = ua.NodeId.from_string(ndata.parent)
106	1		if ndata.parentlink:
107	1		ndata.parentlink = self.to_nodeid(ndata.parentlink)
108	1		if ndata.typedef:
109	1		ndata.typedef = self.to_nodeid(ndata.typedef)
110	1		new_nodes.append(ndata)
111	1		return new_nodes
112
113	1		def _migrate_ns(self, nodeid):
114			"""
115			Check if the index of nodeid or browsename given in the xml model file
116			must be converted to a already existing namespace id based on the files
117			namespace uri
118
119			:returns: NodeId (str)
120			"""
121	1		if nodeid.NamespaceIndex in self.namespaces:
122	1		nodeid = copy(nodeid)
123	1		nodeid.NamespaceIndex = self.namespaces[nodeid.NamespaceIndex]
124	1		return nodeid
125
126	1		def _get_node(self, obj):
127	1		node = ua.AddNodesItem()
128	1		node.RequestedNewNodeId = self._migrate_ns(obj.nodeid)
129	1		node.BrowseName = self._migrate_ns(obj.browsename)
130	1		self.logger.info("Importing xml node (%s, %s) as (%s %s)", obj.browsename, obj.nodeid, node.BrowseName, node.RequestedNewNodeId)
131	1		node.NodeClass = getattr(ua.NodeClass, obj.nodetype[2:])
132	1		if obj.parent:
133	1		node.ParentNodeId = self._migrate_ns(obj.parent)
134	1		if obj.parentlink:
135	1		node.ReferenceTypeId = self._migrate_ns(obj.parentlink)
136	1		if obj.typedef:
137	1		node.TypeDefinition = self._migrate_ns(obj.typedef)
138	1		return node
139
140	1		def to_nodeid(self, nodeid):
141	1		if isinstance(nodeid, ua.NodeId):
142			return nodeid
143	1		elif not nodeid:
144			return ua.NodeId(ua.ObjectIds.String)
145	1		elif "=" in nodeid:
146	1		return ua.NodeId.from_string(nodeid)
147	1		elif hasattr(ua.ObjectIds, nodeid):
148	1		return ua.NodeId(getattr(ua.ObjectIds, nodeid))
149		View Code Duplication	else:
			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		if nodeid in self.aliases:
151	1		return self.aliases[nodeid]
152			else:
153			return ua.NodeId(getattr(ua.ObjectIds, nodeid))
154
155	1		def add_object(self, obj):
156	1		node = self._get_node(obj)
157	1		attrs = ua.ObjectAttributes()
158	1		if obj.desc:
159	1		attrs.Description = ua.LocalizedText(obj.desc)
160	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
161	1		attrs.EventNotifier = obj.eventnotifier
162	1	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...
163	1		res = self._add_node(node)
164	1		self._add_refs(obj)
165	1		res[0].StatusCode.check()
166	1		return res[0].AddedNodeId
167
168	1		def add_object_type(self, obj):
169	1		node = self._get_node(obj)
170	1		attrs = ua.ObjectTypeAttributes()
171	1		if obj.desc:
172			attrs.Description = ua.LocalizedText(obj.desc)
173	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
174	1		attrs.IsAbstract = obj.abstract
175	1		node.NodeAttributes = attrs
176	1		res = self._add_node(node)
177	1		self._add_refs(obj)
178	1		res[0].StatusCode.check()
179	1		return res[0].AddedNodeId
180
181	1		def add_variable(self, obj):
182	1		node = self._get_node(obj)
183	1		attrs = ua.VariableAttributes()
184	1		if obj.desc:
185	1		attrs.Description = ua.LocalizedText(obj.desc)
186	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
187	1		attrs.DataType = self.to_nodeid(obj.datatype)
188	1		if obj.value is not None:
189	1		attrs.Value = self._add_variable_value(obj,)
190	1		if obj.rank:
191	1		attrs.ValueRank = obj.rank
192	1		if obj.accesslevel:
193			attrs.AccessLevel = obj.accesslevel
194	1		if obj.useraccesslevel:
195			attrs.UserAccessLevel = obj.useraccesslevel
196	1		if obj.minsample:
197			attrs.MinimumSamplingInterval = obj.minsample
198	1		if obj.dimensions:
199	1		attrs.ArrayDimensions = obj.dimensions
200	1		node.NodeAttributes = attrs
201	1		res = self._add_node(node)
202	1		self._add_refs(obj)
203	1		res[0].StatusCode.check()
204	1		return res[0].AddedNodeId
205
206	1		def _make_ext_obj(self, obj):
207	1		ext = getattr(ua, obj.objname)()
208	1		for name, val in obj.body:
209	1		if isinstance(val, str):
210			raise Exception("Error val should a dict", name, val)
211			else:
212	1		for attname, v in val:
213	1		self._set_attr(ext, attname, v)
214	1		return ext
215
216	1		def _set_attr(self, obj, attname, val):
217			# tow possible values:
218			# either we get value directly
219			# or a dict if it s an object or a list
220	1		if isinstance(val, str):
221	1		pval = xmlparser.ua_type_to_python(val, obj.ua_types[attname])
222	1		setattr(obj, attname, pval)
223			else:
224			# so we have either an object or a list...
225	1		obj2 = getattr(obj, attname)
226	1		if isinstance(obj2, ua.NodeId): # NodeId representation does not follow common rules!!
227	1		for attname2, v2 in val:
228	1		if attname2 == "Identifier":
229	1		obj2 = ua.NodeId.from_string(v2)
230	1		setattr(obj, attname, obj2)
231	1		break
232	1		elif not isinstance(obj2, ua.NodeId) and not hasattr(obj2, "ua_types"):
233			# we probably have a list
234	1		my_list = []
235	1		for vtype, v2 in val:
236	1		my_list.append(xmlparser.ua_type_to_python(v2, vtype))
237	1		setattr(obj, attname, my_list)
238			else:
239	1		for attname2, v2 in val:
240	1		self._set_attr(obj2, attname2, v2)
241	1		setattr(obj, attname, obj2)
242
243	1		def _add_variable_value(self, obj):
244			"""
245			Returns the value for a Variable based on the objects value type.
246			"""
247	1		self.logger.debug("Setting value with type %s and value %s", obj.valuetype, obj.value)
248	1		if obj.valuetype == 'ListOfExtensionObject':
249	1		values = []
250	1		for ext in obj.value:
251	1		extobj = self._make_ext_obj(ext)
252	1		values.append(extobj)
253	1		return ua.Variant(values, ua.VariantType.ExtensionObject)
254	1		elif obj.valuetype == 'ListOfGuid':
255	1		return ua.Variant([
256			uuid.UUID(guid) for guid in obj.value
257			], getattr(ua.VariantType, obj.valuetype[6:]))
258	1		elif obj.valuetype.startswith("ListOf"):
259	1		vtype = obj.valuetype[6:]
260	1		if hasattr(ua.ua_binary.Primitives, vtype):
261	1		return ua.Variant(obj.value, getattr(ua.VariantType, vtype))
262			else:
263	1		return ua.Variant([getattr(ua, vtype)(v) for v in obj.value])
264	1		elif obj.valuetype == 'ExtensionObject':
265	1		extobj = self._make_ext_obj(obj.value)
266	1		return ua.Variant(extobj, getattr(ua.VariantType, obj.valuetype))
267	1		elif obj.valuetype == 'Guid':
268	1		return ua.Variant(uuid.UUID(obj.value), getattr(ua.VariantType, obj.valuetype))
269	1		elif obj.valuetype == 'LocalizedText':
270	1		ltext = ua.LocalizedText()
271	1		for name, val in obj.value:
272	1		if name == "Text":
273	1		ltext.Text = val.encode("utf-8")
274			else:
275			self.logger.warning("While parsing localizedText value, unkown element: %s with val: %s", name, val)
276	1		return ua.Variant(ltext, ua.VariantType.LocalizedText)
277	1		elif obj.valuetype == 'NodeId':
278	1		return ua.Variant(ua.NodeId.from_string(obj.value))
279			else:
280	1		return ua.Variant(obj.value, getattr(ua.VariantType, obj.valuetype))
281
282	1		def add_variable_type(self, obj):
283			node = self._get_node(obj)
284			attrs = ua.VariableTypeAttributes()
285			if obj.desc:
286			attrs.Description = ua.LocalizedText(obj.desc)
287			attrs.DisplayName = ua.LocalizedText(obj.displayname)
288			attrs.DataType = self.to_nodeid(obj.datatype)
289			if obj.value and len(obj.value) == 1:
290			attrs.Value = obj.value[0]
291			if obj.rank:
292			attrs.ValueRank = obj.rank
293			if obj.abstract:
294			attrs.IsAbstract = obj.abstract
295			if obj.dimensions:
296			attrs.ArrayDimensions = obj.dimensions
297		View Code Duplication	node.NodeAttributes = attrs
			0 ignored issues – show Duplication introduced 2017-01-07 12:46 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
298			res = self._add_node(node)
299			self._add_refs(obj)
300			res[0].StatusCode.check()
301			return res[0].AddedNodeId
302
303	1		def add_method(self, obj):
304	1		node = self._get_node(obj)
305	1		attrs = ua.MethodAttributes()
306	1		if obj.desc:
307	1		attrs.Description = ua.LocalizedText(obj.desc)
308	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
309	1		if obj.accesslevel:
310			attrs.AccessLevel = obj.accesslevel
311	1		if obj.useraccesslevel:
312			attrs.UserAccessLevel = obj.useraccesslevel
313	1		if obj.minsample:
314			attrs.MinimumSamplingInterval = obj.minsample
315	1		if obj.dimensions:
316			attrs.ArrayDimensions = obj.dimensions
317	1	View Code Duplication	node.NodeAttributes = attrs
			0 ignored issues – show Duplication introduced 2017-01-07 12:46 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
318	1		res = self._add_node(node)
319	1		self._add_refs(obj)
320	1		res[0].StatusCode.check()
321	1		return res[0].AddedNodeId
322
323	1		def add_reference_type(self, obj):
324			node = self._get_node(obj)
325			attrs = ua.ReferenceTypeAttributes()
326			if obj.desc:
327			attrs.Description = ua.LocalizedText(obj.desc)
328			attrs.DisplayName = ua.LocalizedText(obj.displayname)
329			if obj. inversename:
330			attrs.InverseName = ua.LocalizedText(obj.inversename)
331			if obj.abstract:
332			attrs.IsAbstract = obj.abstract
333			if obj.symmetric:
334			attrs.Symmetric = obj.symmetric
335		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...
336			res = self._add_node(node)
337			self._add_refs(obj)
338			res[0].StatusCode.check()
339			return res[0].AddedNodeId
340
341	1		def add_datatype(self, obj):
342	1		node = self._get_node(obj)
343	1		attrs = ua.DataTypeAttributes()
344	1		if obj.desc:
345	1		attrs.Description = ua.LocalizedText(obj.desc)
346	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
347	1		if obj.abstract:
348			attrs.IsAbstract = obj.abstract
349	1		node.NodeAttributes = attrs
350	1		res = self._add_node(node)
351	1		self._add_refs(obj)
352	1		res[0].StatusCode.check()
353	1		return res[0].AddedNodeId
354
355	1		def _add_refs(self, obj):
356	1		if not obj.refs:
357	1		return
358	1		refs = []
359	1		for data in obj.refs:
360	1		ref = ua.AddReferencesItem()
361	1		ref.IsForward = True
362	1		ref.ReferenceTypeId = self.to_nodeid(data.reftype)
363	1		ref.SourceNodeId = self._migrate_ns(obj.nodeid)
364	1		ref.TargetNodeClass = ua.NodeClass.DataType
365	1		ref.TargetNodeId = self._migrate_ns(self.to_nodeid(data.target))
366	1		refs.append(ref)
367	1		self._add_references(refs)
368
369	1		def _sort_nodes_by_parentid(self, ndatas):
370			"""
371			Sort the list of nodes according their parent node in order to respect
372			the dependency between nodes.
373
374			:param nodes: list of NodeDataObjects
375			:returns: list of sorted nodes
376			"""
377	1		_ndatas = list(ndatas)
378			# list of node ids that are already sorted / inserted
379	1		sorted_nodes_ids = []
380			# list of sorted nodes (i.e. XML Elements)
381	1		sorted_ndatas = []
382	1		all_node_ids = [data.nodeid for data in ndatas]
383			# list of namespace indexes that are relevant for this import
384			# we can only respect ordering nodes for namespaces indexes that
385			# are defined in the xml file itself. Thus we assume that all other
386			# references namespaces are already known to the server and should
387			# not create any dependency problems (like "NodeNotFound")
388	1		while len(_ndatas) > 0:
389	1		pop_nodes = []
390	1		for ndata in _ndatas:
391			# Insert nodes that
392			# (1) have no parent / parent_ns is None (e.g. namespace 0)
393			# (2) ns is not in list of relevant namespaces
394	1		if ndata.nodeid.NamespaceIndex not in self.namespaces or \
395			ndata.parent is None or \
396			ndata.parent not in all_node_ids:
397	1		sorted_ndatas.append(ndata)
398	1		sorted_nodes_ids.append(ndata.nodeid)
399	1		pop_nodes.append(ndata)
400			else:
401			# Check if the nodes parent is already in the list of
402			# inserted nodes
403	1		if ndata.parent in sorted_nodes_ids:
404	1		sorted_ndatas.append(ndata)
405	1		sorted_nodes_ids.append(ndata.nodeid)
406	1		pop_nodes.append(ndata)
407			# Remove inserted nodes from the list
408	1		for ndata in pop_nodes:
409	1		_ndatas.pop(_ndatas.index(ndata))
410			return sorted_ndatas
411

FreeOpcUa / python-opcua

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XmlImporter._add_references() A

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