XmlImporter.import_xml() - Code Metrics - Inspection of "Load Aliases before make_objects()" - FreeOpcUa/python-opcua - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( d47619...3daa2d )

by Olivier

created 2017-01-17 11:43 UTC

XmlImporter.import_xml() A

↳ Parent: XmlImporter

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	14
CRAP Score	3.0494

Importance

Changes	5
Bugs	1	Features	0

Metric	Value
cc	3
c	5
b	1
f	0
dl	0
loc	23
ccs	14
cts	17
cp	0.8235
crap	3.0494
rs	9.0856

"""
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)

        self.namespaces = self._map_namespaces(self.parser.get_used_namespaces())
        self.aliases = self._map_aliases(self.parser.get_aliases())
        
        dnodes = self.parser.get_node_datas()
        dnodes = self.make_objects(dnodes)
        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		self.namespaces = self._map_namespaces(self.parser.get_used_namespaces())
51	1		self.aliases = self._map_aliases(self.parser.get_aliases())
52
53	1		dnodes = self.parser.get_node_datas()
54	1		dnodes = self.make_objects(dnodes)
55	1		nodes_parsed = self._sort_nodes_by_parentid(dnodes)
56
57	1		nodes = []
58	1		for nodedata in nodes_parsed: # self.parser:
59	1		try:
60	1		node = self._add_node_data(nodedata)
61			except Exception:
62			self.logger.warning("failure adding node %s", nodedata)
63			raise
64	1		nodes.append(node)
65	1		return nodes
66
67	1		def _add_node_data(self, nodedata):
68	1		if nodedata.nodetype == 'UAObject':
69	1		node = self.add_object(nodedata)
70	1		elif nodedata.nodetype == 'UAObjectType':
71	1		node = self.add_object_type(nodedata)
72	1		elif nodedata.nodetype == 'UAVariable':
73	1		node = self.add_variable(nodedata)
74	1		elif nodedata.nodetype == 'UAVariableType':
75			node = self.add_variable_type(nodedata)
76	1		elif nodedata.nodetype == 'UAReferenceType':
77			node = self.add_reference_type(nodedata)
78	1		elif nodedata.nodetype == 'UADataType':
79	1		node = self.add_datatype(nodedata)
80	1		elif nodedata.nodetype == 'UAMethod':
81	1		node = self.add_method(nodedata)
82			else:
83			self.logger.warning("Not implemented node type: %s ", nodedata.nodetype)
84	1		return node
85
86	1		def _add_node(self, node):
87	1		if isinstance(self.server, opcua.server.server.Server):
88	1		return self.server.iserver.isession.add_nodes([node])
89			else:
90	1		return self.server.uaclient.add_nodes([node])
91
92	1		def _add_references(self, refs):
93	1		if isinstance(self.server, opcua.server.server.Server):
94	1		return self.server.iserver.isession.add_references(refs)
95			else:
96	1		return self.server.uaclient.add_references(refs)
97
98	1		def make_objects(self, node_datas):
99	1		new_nodes = []
100	1		for ndata in node_datas:
101	1		ndata.nodeid = ua.NodeId.from_string(ndata.nodeid)
102	1		ndata.browsename = ua.QualifiedName.from_string(ndata.browsename)
103	1		if ndata.parent:
104	1		ndata.parent = ua.NodeId.from_string(ndata.parent)
105	1		if ndata.parentlink:
106	1		ndata.parentlink = self.to_nodeid(ndata.parentlink)
107	1		if ndata.typedef:
108	1		ndata.typedef = self.to_nodeid(ndata.typedef)
109	1		new_nodes.append(ndata)
110	1		return new_nodes
111
112	1		def _migrate_ns(self, nodeid):
113			"""
114			Check if the index of nodeid or browsename given in the xml model file
115			must be converted to a already existing namespace id based on the files
116			namespace uri
117
118			:returns: NodeId (str)
119			"""
120	1		if nodeid.NamespaceIndex in self.namespaces:
121	1		nodeid = copy(nodeid)
122	1		nodeid.NamespaceIndex = self.namespaces[nodeid.NamespaceIndex]
123	1		return nodeid
124
125	1		def _get_node(self, obj):
126	1		node = ua.AddNodesItem()
127	1		node.RequestedNewNodeId = self._migrate_ns(obj.nodeid)
128	1		node.BrowseName = self._migrate_ns(obj.browsename)
129	1		self.logger.info("Importing xml node (%s, %s) as (%s %s)", obj.browsename, obj.nodeid, node.BrowseName, node.RequestedNewNodeId)
130	1		node.NodeClass = getattr(ua.NodeClass, obj.nodetype[2:])
131	1		if obj.parent:
132	1		node.ParentNodeId = self._migrate_ns(obj.parent)
133	1		if obj.parentlink:
134	1		node.ReferenceTypeId = self._migrate_ns(obj.parentlink)
135	1		if obj.typedef:
136	1		node.TypeDefinition = self._migrate_ns(obj.typedef)
137	1		return node
138
139	1		def to_nodeid(self, nodeid):
140	1		if isinstance(nodeid, ua.NodeId):
141			return nodeid
142	1		elif not nodeid:
143			return ua.NodeId(ua.ObjectIds.String)
144	1		elif "=" in nodeid:
145	1		return ua.NodeId.from_string(nodeid)
146	1		elif hasattr(ua.ObjectIds, nodeid):
147	1		return ua.NodeId(getattr(ua.ObjectIds, nodeid))
148			else:
149	1	View Code Duplication	if nodeid in self.aliases:
			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		return self.aliases[nodeid]
151			else:
152			return ua.NodeId(getattr(ua.ObjectIds, nodeid))
153
154	1		def add_object(self, obj):
155	1		node = self._get_node(obj)
156	1		attrs = ua.ObjectAttributes()
157	1		if obj.desc:
158	1		attrs.Description = ua.LocalizedText(obj.desc)
159	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
160	1		attrs.EventNotifier = obj.eventnotifier
161	1		node.NodeAttributes = attrs
162	1	View Code Duplication	res = self._add_node(node)
			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		self._add_refs(obj)
164	1		res[0].StatusCode.check()
165	1		return res[0].AddedNodeId
166
167	1		def add_object_type(self, obj):
168	1		node = self._get_node(obj)
169	1		attrs = ua.ObjectTypeAttributes()
170	1		if obj.desc:
171			attrs.Description = ua.LocalizedText(obj.desc)
172	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
173	1		attrs.IsAbstract = obj.abstract
174	1		node.NodeAttributes = attrs
175	1		res = self._add_node(node)
176	1		self._add_refs(obj)
177	1		res[0].StatusCode.check()
178	1		return res[0].AddedNodeId
179
180	1		def add_variable(self, obj):
181	1		node = self._get_node(obj)
182	1		attrs = ua.VariableAttributes()
183	1		if obj.desc:
184	1		attrs.Description = ua.LocalizedText(obj.desc)
185	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
186	1		attrs.DataType = self.to_nodeid(obj.datatype)
187	1		if obj.value is not None:
188	1		attrs.Value = self._add_variable_value(obj,)
189	1		if obj.rank:
190	1		attrs.ValueRank = obj.rank
191	1		if obj.accesslevel:
192			attrs.AccessLevel = obj.accesslevel
193	1		if obj.useraccesslevel:
194			attrs.UserAccessLevel = obj.useraccesslevel
195	1		if obj.minsample:
196			attrs.MinimumSamplingInterval = obj.minsample
197	1		if obj.dimensions:
198	1		attrs.ArrayDimensions = obj.dimensions
199	1		node.NodeAttributes = attrs
200	1		res = self._add_node(node)
201	1		self._add_refs(obj)
202	1		res[0].StatusCode.check()
203	1		return res[0].AddedNodeId
204
205	1		def _make_ext_obj(self, obj):
206	1		ext = getattr(ua, obj.objname)()
207	1		for name, val in obj.body:
208	1		if isinstance(val, str):
209			raise Exception("Error val should a dict", name, val)
210			else:
211	1		for attname, v in val:
212	1		self._set_attr(ext, attname, v)
213	1		return ext
214
215	1		def _set_attr(self, obj, attname, val):
216			# tow possible values:
217			# either we get value directly
218			# or a dict if it s an object or a list
219	1		if isinstance(val, str):
220	1		pval = xmlparser.ua_type_to_python(val, obj.ua_types[attname])
221	1		setattr(obj, attname, pval)
222			else:
223			# so we have either an object or a list...
224	1		obj2 = getattr(obj, attname)
225	1		if isinstance(obj2, ua.NodeId): # NodeId representation does not follow common rules!!
226	1		for attname2, v2 in val:
227	1		if attname2 == "Identifier":
228	1		obj2 = ua.NodeId.from_string(v2)
229	1		setattr(obj, attname, obj2)
230	1		break
231	1		elif not isinstance(obj2, ua.NodeId) and not hasattr(obj2, "ua_types"):
232			# we probably have a list
233	1		my_list = []
234	1		for vtype, v2 in val:
235	1		my_list.append(xmlparser.ua_type_to_python(v2, vtype))
236	1		setattr(obj, attname, my_list)
237			else:
238	1		for attname2, v2 in val:
239	1		self._set_attr(obj2, attname2, v2)
240	1		setattr(obj, attname, obj2)
241
242	1		def _add_variable_value(self, obj):
243			"""
244			Returns the value for a Variable based on the objects value type.
245			"""
246	1		self.logger.debug("Setting value with type %s and value %s", obj.valuetype, obj.value)
247	1		if obj.valuetype == 'ListOfExtensionObject':
248	1		values = []
249	1		for ext in obj.value:
250	1		extobj = self._make_ext_obj(ext)
251	1		values.append(extobj)
252	1		return ua.Variant(values, ua.VariantType.ExtensionObject)
253	1		elif obj.valuetype == 'ListOfGuid':
254	1		return ua.Variant([
255			uuid.UUID(guid) for guid in obj.value
256			], getattr(ua.VariantType, obj.valuetype[6:]))
257	1		elif obj.valuetype.startswith("ListOf"):
258	1		vtype = obj.valuetype[6:]
259	1		if hasattr(ua.ua_binary.Primitives, vtype):
260	1		return ua.Variant(obj.value, getattr(ua.VariantType, vtype))
261			else:
262	1		return ua.Variant([getattr(ua, vtype)(v) for v in obj.value])
263	1		elif obj.valuetype == 'ExtensionObject':
264	1		extobj = self._make_ext_obj(obj.value)
265	1		return ua.Variant(extobj, getattr(ua.VariantType, obj.valuetype))
266	1		elif obj.valuetype == 'Guid':
267	1		return ua.Variant(uuid.UUID(obj.value), getattr(ua.VariantType, obj.valuetype))
268	1		elif obj.valuetype == 'LocalizedText':
269	1		ltext = ua.LocalizedText()
270	1		for name, val in obj.value:
271	1		if name == "Text":
272	1		ltext.Text = val.encode("utf-8")
273			else:
274			self.logger.warning("While parsing localizedText value, unkown element: %s with val: %s", name, val)
275	1		return ua.Variant(ltext, ua.VariantType.LocalizedText)
276	1		elif obj.valuetype == 'NodeId':
277	1		return ua.Variant(ua.NodeId.from_string(obj.value))
278			else:
279	1		return ua.Variant(obj.value, getattr(ua.VariantType, obj.valuetype))
280
281	1		def add_variable_type(self, obj):
282			node = self._get_node(obj)
283			attrs = ua.VariableTypeAttributes()
284			if obj.desc:
285			attrs.Description = ua.LocalizedText(obj.desc)
286			attrs.DisplayName = ua.LocalizedText(obj.displayname)
287			attrs.DataType = self.to_nodeid(obj.datatype)
288			if obj.value and len(obj.value) == 1:
289			attrs.Value = obj.value[0]
290			if obj.rank:
291			attrs.ValueRank = obj.rank
292			if obj.abstract:
293			attrs.IsAbstract = obj.abstract
294			if obj.dimensions:
295			attrs.ArrayDimensions = obj.dimensions
296			node.NodeAttributes = attrs
297		View Code Duplication	res = self._add_node(node)
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298			self._add_refs(obj)
299			res[0].StatusCode.check()
300			return res[0].AddedNodeId
301
302	1		def add_method(self, obj):
303	1		node = self._get_node(obj)
304	1		attrs = ua.MethodAttributes()
305	1		if obj.desc:
306	1		attrs.Description = ua.LocalizedText(obj.desc)
307	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
308	1		if obj.accesslevel:
309			attrs.AccessLevel = obj.accesslevel
310	1		if obj.useraccesslevel:
311			attrs.UserAccessLevel = obj.useraccesslevel
312	1		if obj.minsample:
313			attrs.MinimumSamplingInterval = obj.minsample
314	1		if obj.dimensions:
315			attrs.ArrayDimensions = obj.dimensions
316	1		node.NodeAttributes = attrs
317	1	View Code Duplication	res = self._add_node(node)
			0 ignored issues – show Duplication introduced 2017-01-17 11:14 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
318	1		self._add_refs(obj)
319	1		res[0].StatusCode.check()
320	1		return res[0].AddedNodeId
321
322	1		def add_reference_type(self, obj):
323			node = self._get_node(obj)
324			attrs = ua.ReferenceTypeAttributes()
325			if obj.desc:
326			attrs.Description = ua.LocalizedText(obj.desc)
327			attrs.DisplayName = ua.LocalizedText(obj.displayname)
328			if obj. inversename:
329			attrs.InverseName = ua.LocalizedText(obj.inversename)
330			if obj.abstract:
331			attrs.IsAbstract = obj.abstract
332			if obj.symmetric:
333			attrs.Symmetric = obj.symmetric
334			node.NodeAttributes = attrs
335		View Code Duplication	res = self._add_node(node)
			0 ignored issues – show Duplication introduced 2017-01-17 11:14 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
336			self._add_refs(obj)
337			res[0].StatusCode.check()
338			return res[0].AddedNodeId
339
340	1		def add_datatype(self, obj):
341	1		node = self._get_node(obj)
342	1		attrs = ua.DataTypeAttributes()
343	1		if obj.desc:
344	1		attrs.Description = ua.LocalizedText(obj.desc)
345	1		attrs.DisplayName = ua.LocalizedText(obj.displayname)
346	1		if obj.abstract:
347			attrs.IsAbstract = obj.abstract
348	1		node.NodeAttributes = attrs
349	1		res = self._add_node(node)
350	1		self._add_refs(obj)
351	1		res[0].StatusCode.check()
352	1		return res[0].AddedNodeId
353
354	1		def _add_refs(self, obj):
355	1		if not obj.refs:
356	1		return
357	1		refs = []
358	1		for data in obj.refs:
359	1		ref = ua.AddReferencesItem()
360	1		ref.IsForward = True
361	1		ref.ReferenceTypeId = self.to_nodeid(data.reftype)
362	1		ref.SourceNodeId = self._migrate_ns(obj.nodeid)
363	1		ref.TargetNodeClass = ua.NodeClass.DataType
364	1		ref.TargetNodeId = self._migrate_ns(self.to_nodeid(data.target))
365	1		refs.append(ref)
366	1		self._add_references(refs)
367
368	1		def _sort_nodes_by_parentid(self, ndatas):
369			"""
370			Sort the list of nodes according their parent node in order to respect
371			the dependency between nodes.
372
373			:param nodes: list of NodeDataObjects
374			:returns: list of sorted nodes
375			"""
376	1		_ndatas = list(ndatas)
377			# list of node ids that are already sorted / inserted
378	1		sorted_nodes_ids = []
379			# list of sorted nodes (i.e. XML Elements)
380	1		sorted_ndatas = []
381	1		all_node_ids = [data.nodeid for data in ndatas]
382			# list of namespace indexes that are relevant for this import
383			# we can only respect ordering nodes for namespaces indexes that
384			# are defined in the xml file itself. Thus we assume that all other
385			# references namespaces are already known to the server and should
386			# not create any dependency problems (like "NodeNotFound")
387	1		while len(_ndatas) > 0:
388	1		pop_nodes = []
389	1		for ndata in _ndatas:
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	1		if ndata.nodeid.NamespaceIndex not in self.namespaces or \
394			ndata.parent is None or \
395			ndata.parent not in all_node_ids:
396	1		sorted_ndatas.append(ndata)
397	1		sorted_nodes_ids.append(ndata.nodeid)
398	1		pop_nodes.append(ndata)
399			else:
400			# Check if the nodes parent is already in the list of
401			# inserted nodes
402	1		if ndata.parent in sorted_nodes_ids:
403	1		sorted_ndatas.append(ndata)
404	1		sorted_nodes_ids.append(ndata.nodeid)
405	1		pop_nodes.append(ndata)
406			# Remove inserted nodes from the list
407	1		for ndata in pop_nodes:
408	1		_ndatas.pop(_ndatas.index(ndata))
409			return sorted_ndatas
410

FreeOpcUa / python-opcua

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XmlImporter.import_xml() A

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