Server.get_event_object() - Code Metrics - Inspection of "Events debugging" - FreeOpcUa/python-opcua - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#133)

by Denis

created 2016-04-19 09:08 UTC

Server.get_event_object() A

↳ Parent: Project

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	7
CRAP Score	3

Metric	Value
cc	3
dl	0
loc	14
ccs	7
cts	7
cp	1
crap	3
rs	9.4285

"""
High level interface to pure python OPC-UA server
"""

import logging
try:
    from urllib.parse import urlparse
except ImportError:
    from urlparse import urlparse


from opcua import ua
#from opcua.binary_server import BinaryServer
from opcua.server.binary_server_asyncio import BinaryServer
from opcua.server.internal_server import InternalServer
from opcua.common.node import Node
from opcua.common.subscription import Subscription
from opcua.common import xmlimporter
from opcua.common.manage_nodes import delete_nodes
from opcua.client.client import Client
from opcua.crypto import security_policies
use_crypto = True
try:
    from opcua.crypto import uacrypto
except ImportError:
    print("cryptography is not installed, use of crypto disabled")
    use_crypto = False


class Server(object):

    """
    High level Server class

    This class creates an opcua server with default values

    Create your own namespace and then populate your server address space
    using use the get_root() or get_objects() to get Node objects.
    and get_event_object() to fire events.
    Then start server. See example_server.py
    All methods are threadsafe

    If you need more flexibility you call directly the Ua Service methods
    on the iserver  or iserver.isesssion object members.


    :ivar application_uri:
    :vartype application_uri: uri
    :ivar product_uri:
    :vartype product_uri: uri
    :ivar name:
    :vartype name: string
    :ivar default_timeout: timout in milliseconds for sessions and secure channel
    :vartype default_timeout: int
    :ivar iserver: internal server object
    :vartype default_timeout: InternalServer
    :ivar bserver: binary protocol server
    :vartype bserver: BinaryServer

    """

    def __init__(self):
        self.logger = logging.getLogger(__name__)
        self.endpoint = urlparse("opc.tcp://0.0.0.0:4840/freeopcua/server/")
        self.application_uri = "urn:freeopcua:python:server"
        self.product_uri = "urn:freeopcua.github.no:python:server"
        self.name = "FreeOpcUa Python Server"
        self.application_type = ua.ApplicationType.ClientAndServer
        self.default_timeout = 3600000
        self.iserver = InternalServer()
        self.bserver = None
        self._discovery_clients = {}
        self._discovery_period = 60
        self.certificate = None
        self.private_key = None
        self._policies = []

        # setup some expected values
        self.register_namespace(self.application_uri)
        sa_node = self.get_node(ua.NodeId(ua.ObjectIds.Server_ServerArray))
        sa_node.set_value([self.application_uri])

    def load_certificate(self, path):
        """
        load server certificate from file, either pem or der
        """
        self.certificate = uacrypto.load_certificate(path)

    def load_private_key(self, path):
        self.private_key = uacrypto.load_private_key(path)

    def disable_clock(self, val=True):
        """
        for debugging you may want to disable clock that write every second
        to address space
        """
        self.iserver.disabled_clock = val

    def set_application_uri(self, uri):
        """
        Set application/server URI.
        This uri is supposed to be unique. If you intent to register
        your server to a discovery server, it really should be unique in
        your system!
        default is : "urn:freeopcua:python:server"
        """
        self.application_uri = uri

    def find_servers(self, uris=None):
        """
        find_servers. mainly implemented for simmetry with client
        """
        if uris is None:
            uris = []
        params = ua.FindServersParameters()
        params.EndpointUrl = self.endpoint.geturl()
        params.ServerUris = uris
        return self.iserver.find_servers(params)

    def register_to_discovery(self, url="opc.tcp://localhost:4840", period=60):
        """
        Register to an OPC-UA Discovery server. Registering must be renewed at
        least every 10 minutes, so this method will use our asyncio thread to
        re-register every period seconds
        if period is 0 registration is not automatically renewed
        """
        # FIXME: habe a period per discovery
        if url in self._discovery_clients:
            self._discovery_clients[url].disconnect()
        self._discovery_clients[url] = Client(url)
        self._discovery_clients[url].connect()
        self._discovery_clients[url].register_server(self)
        self._discovery_period = period
        if period:
            self.iserver.loop.call_soon(self._renew_registration)

    def unregister_to_discovery(self, url="opc.tcp://localhost:4840"):
        """
        stop registration thread
        """
        # FIXME: is there really no way to deregister?
        self._discovery_clients[url].disconnect()

    def _renew_registration(self):
        for client in self._discovery_clients.values():
            client.register_server(self)
            self.iserver.loop.call_later(self._discovery_period, self._renew_registration)

    def get_client_to_discovery(self, url="opc.tcp://localhost:4840"):
        """
        Create a client to discovery server and return it
        """
        client = Client(url)
        client.connect()
        return client

    def allow_remote_admin(self, allow):
        """
        Enable or disable the builtin Admin user from network clients
        """
        self.iserver.allow_remote_admin = allow

    def set_endpoint(self, url):
        self.endpoint = urlparse(url)

    def get_endpoints(self):
        return self.iserver.get_endpoints()

    def _setup_server_nodes(self):
        # to be called just before starting server since it needs all parameters to be setup
        self._set_endpoints()
        self._policies = [ua.SecurityPolicyFactory()]
        if self.certificate and self.private_key:
            self._set_endpoints(security_policies.SecurityPolicyBasic128Rsa15,
                                ua.MessageSecurityMode.SignAndEncrypt)
            self._policies.append(ua.SecurityPolicyFactory(security_policies.SecurityPolicyBasic128Rsa15,
                                                           ua.MessageSecurityMode.SignAndEncrypt,
                                                           self.certificate,
                                                           self.private_key)
                                 )
            self._set_endpoints(security_policies.SecurityPolicyBasic128Rsa15,
                                ua.MessageSecurityMode.Sign)
            self._policies.append(ua.SecurityPolicyFactory(security_policies.SecurityPolicyBasic128Rsa15,
                                                           ua.MessageSecurityMode.Sign,
                                                           self.certificate,
                                                           self.private_key)
                                 )
            self._set_endpoints(security_policies.SecurityPolicyBasic256,
                                ua.MessageSecurityMode.SignAndEncrypt)
            self._policies.append(ua.SecurityPolicyFactory(security_policies.SecurityPolicyBasic256,
                                                           ua.MessageSecurityMode.SignAndEncrypt,
                                                           self.certificate,
                                                           self.private_key)
                                 )
            self._set_endpoints(security_policies.SecurityPolicyBasic256,
                                ua.MessageSecurityMode.Sign)
            self._policies.append(ua.SecurityPolicyFactory(security_policies.SecurityPolicyBasic256,
                                                           ua.MessageSecurityMode.Sign,
                                                           self.certificate,
                                                           self.private_key)
                                 )

    def _set_endpoints(self, policy=ua.SecurityPolicy, mode=ua.MessageSecurityMode.None_):
        idtoken = ua.UserTokenPolicy()
        idtoken.PolicyId = 'anonymous'
        idtoken.TokenType = ua.UserTokenType.Anonymous

        idtoken2 = ua.UserTokenPolicy()
        idtoken2.PolicyId = 'certificate_basic256'
        idtoken2.TokenType = ua.UserTokenType.Certificate

        idtoken3 = ua.UserTokenPolicy()
        idtoken3.PolicyId = 'certificate_basic128'
        idtoken3.TokenType = ua.UserTokenType.Certificate

        idtoken4 = ua.UserTokenPolicy()
        idtoken4.PolicyId = 'username'
        idtoken4.TokenType = ua.UserTokenType.UserName

        appdesc = ua.ApplicationDescription()
        appdesc.ApplicationName = ua.LocalizedText(self.name)
        appdesc.ApplicationUri = self.application_uri
        appdesc.ApplicationType = self.application_type
        appdesc.ProductUri = self.product_uri
        appdesc.DiscoveryUrls.append(self.endpoint.geturl())

        edp = ua.EndpointDescription()
        edp.EndpointUrl = self.endpoint.geturl()
        edp.Server = appdesc
        if self.certificate:
            edp.ServerCertificate = uacrypto.der_from_x509(self.certificate)
        edp.SecurityMode = mode
        edp.SecurityPolicyUri = policy.URI
        edp.UserIdentityTokens = [idtoken, idtoken2, idtoken3, idtoken4]
        edp.TransportProfileUri = 'http://opcfoundation.org/UA-Profile/Transport/uatcp-uasc-uabinary'
        edp.SecurityLevel = 0
        self.iserver.add_endpoint(edp)

    def set_server_name(self, name):
        self.name = name

    def start(self):
        """
        Start to listen on network
        """
        self._setup_server_nodes()
        self.iserver.start()
        self.bserver = BinaryServer(self.iserver, self.endpoint.hostname, self.endpoint.port)
        self.bserver.set_policies(self._policies)
        self.bserver.start()

    def stop(self):
        """
        Stop server
        """
        for client in self._discovery_clients.values():
            client.disconnect()
        self.bserver.stop()
        self.iserver.stop()

    def get_root_node(self):
        """
        Get Root node of server. Returns a Node object.
        """
        return self.get_node(ua.TwoByteNodeId(ua.ObjectIds.RootFolder))

    def get_objects_node(self):
        """
        Get Objects node of server. Returns a Node object.
        """
        return self.get_node(ua.TwoByteNodeId(ua.ObjectIds.ObjectsFolder))

    def get_server_node(self):
        """
        Get Server node of server. Returns a Node object.
        """
        return self.get_node(ua.TwoByteNodeId(ua.ObjectIds.Server))

    def get_node(self, nodeid):
        """
        Get a specific node using NodeId object or a string representing a NodeId
        """
        return Node(self.iserver.isession, nodeid)

    def create_subscription(self, period, handler):
        """
        Create a subscription.
        returns a Subscription object which allow
        to subscribe to events or data on server
        """
        params = ua.CreateSubscriptionParameters()
        params.RequestedPublishingInterval = period
        params.RequestedLifetimeCount = 3000
        params.RequestedMaxKeepAliveCount = 10000
        params.MaxNotificationsPerPublish = 0
        params.PublishingEnabled = True
        params.Priority = 0
        return Subscription(self.iserver.isession, params, handler)

    def get_namespace_array(self):
        """
        get all namespace defined in server
        """
        ns_node = self.get_node(ua.NodeId(ua.ObjectIds.Server_NamespaceArray))
        return ns_node.get_value()

    def register_namespace(self, uri):
        """
        Register a new namespace. Nodes should in custom namespace, not 0.
        """
        ns_node = self.get_node(ua.NodeId(ua.ObjectIds.Server_NamespaceArray))
        uries = ns_node.get_value()
        uries.append(uri)
        ns_node.set_value(uries)
        return len(uries) - 1

    def get_namespace_index(self, uri):
        """
        get index of a namespace using its uri
        """
        uries = self.get_namespace_array()
        return uries.index(uri)

    def get_event_object(self, event=ua.BaseEvent()):
        """
        Returns an event object using an event type from address space.
        Use this object to fire events
        """
        #TODO: Implement EventTypeID as input paramter

        if isinstance(event, ua.BaseEvent):
            source = Node(self.iserver.isession, event.SourceNode)
            if event.SourceNode.Identifier:
                event.SourceName = source.get_display_name().Text
                source.set_attribute(ua.AttributeIds.EventNotifier, ua.DataValue(ua.Variant(1, ua.VariantType.Byte)))

        return event

    def trigger_event(self, event):
        self.iserver.isession.subscription_service.trigger_event(event)

    def import_xml(self, path):
        """
        import nodes defined in xml
        """
        importer = xmlimporter.XmlImporter(self.iserver.node_mgt_service)
        importer.import_xml(path)

    def delete_nodes(self, nodes, recursive=False):
        return delete_nodes(self.iserver.isession, nodes, recursive)

    def historize_node(self, node):
        self.iserver.enable_history(node)

    def dehistorize_node(self, node):
        self.iserver.disable_history(node)


1		"""
2		High level interface to pure python OPC-UA server
3		"""
4
5	1	import logging
6	1	try:
7	1	from urllib.parse import urlparse
8		except ImportError:
9		from urlparse import urlparse
10
11
12	1	from opcua import ua
13		#from opcua.binary_server import BinaryServer
14	1	from opcua.server.binary_server_asyncio import BinaryServer
15	1	from opcua.server.internal_server import InternalServer
16	1	from opcua.common.node import Node
17	1	from opcua.common.subscription import Subscription
18	1	from opcua.common import xmlimporter
19	1	from opcua.common.manage_nodes import delete_nodes
20	1	from opcua.client.client import Client
21	1	from opcua.crypto import security_policies
22	1	use_crypto = True
23	1	try:
24	1	from opcua.crypto import uacrypto
25	1	except ImportError:
26	1	print("cryptography is not installed, use of crypto disabled")
27	1	use_crypto = False
28
29
30	1	class Server(object):
31
32		"""
33		High level Server class
34
35		This class creates an opcua server with default values
36
37		Create your own namespace and then populate your server address space
38		using use the get_root() or get_objects() to get Node objects.
39		and get_event_object() to fire events.
40		Then start server. See example_server.py
41		All methods are threadsafe
42
43		If you need more flexibility you call directly the Ua Service methods
44		on the iserver or iserver.isesssion object members.
45
46
47		:ivar application_uri:
48		:vartype application_uri: uri
49		:ivar product_uri:
50		:vartype product_uri: uri
51		:ivar name:
52		:vartype name: string
53		:ivar default_timeout: timout in milliseconds for sessions and secure channel
54		:vartype default_timeout: int
55		:ivar iserver: internal server object
56		:vartype default_timeout: InternalServer
57		:ivar bserver: binary protocol server
58		:vartype bserver: BinaryServer
59
60		"""
61
62	1	def __init__(self):
63	1	self.logger = logging.getLogger(__name__)
64	1	self.endpoint = urlparse("opc.tcp://0.0.0.0:4840/freeopcua/server/")
65	1	self.application_uri = "urn:freeopcua:python:server"
66	1	self.product_uri = "urn:freeopcua.github.no:python:server"
67	1	self.name = "FreeOpcUa Python Server"
68	1	self.application_type = ua.ApplicationType.ClientAndServer
69	1	self.default_timeout = 3600000
70	1	self.iserver = InternalServer()
71	1	self.bserver = None
72	1	self._discovery_clients = {}
73	1	self._discovery_period = 60
74	1	self.certificate = None
75	1	self.private_key = None
76	1	self._policies = []
77
78		# setup some expected values
79	1	self.register_namespace(self.application_uri)
80	1	sa_node = self.get_node(ua.NodeId(ua.ObjectIds.Server_ServerArray))
81	1	sa_node.set_value([self.application_uri])
82
83	1	def load_certificate(self, path):
84		"""
85		load server certificate from file, either pem or der
86		"""
87		self.certificate = uacrypto.load_certificate(path)
88
89	1	def load_private_key(self, path):
90		self.private_key = uacrypto.load_private_key(path)
91
92	1	def disable_clock(self, val=True):
93		"""
94		for debugging you may want to disable clock that write every second
95		to address space
96		"""
97		self.iserver.disabled_clock = val
98
99	1	def set_application_uri(self, uri):
100		"""
101		Set application/server URI.
102		This uri is supposed to be unique. If you intent to register
103		your server to a discovery server, it really should be unique in
104		your system!
105		default is : "urn:freeopcua:python:server"
106		"""
107	1	self.application_uri = uri
108
109	1	def find_servers(self, uris=None):
110		"""
111		find_servers. mainly implemented for simmetry with client
112		"""
113	1	if uris is None:
114	1	uris = []
115	1	params = ua.FindServersParameters()
116	1	params.EndpointUrl = self.endpoint.geturl()
117	1	params.ServerUris = uris
118	1	return self.iserver.find_servers(params)
119
120	1	def register_to_discovery(self, url="opc.tcp://localhost:4840", period=60):
121		"""
122		Register to an OPC-UA Discovery server. Registering must be renewed at
123		least every 10 minutes, so this method will use our asyncio thread to
124		re-register every period seconds
125		if period is 0 registration is not automatically renewed
126		"""
127		# FIXME: habe a period per discovery
128	1	if url in self._discovery_clients:
129	1	self._discovery_clients[url].disconnect()
130	1	self._discovery_clients[url] = Client(url)
131	1	self._discovery_clients[url].connect()
132	1	self._discovery_clients[url].register_server(self)
133	1	self._discovery_period = period
134	1	if period:
135		self.iserver.loop.call_soon(self._renew_registration)
136
137	1	def unregister_to_discovery(self, url="opc.tcp://localhost:4840"):
138		"""
139		stop registration thread
140		"""
141		# FIXME: is there really no way to deregister?
142		self._discovery_clients[url].disconnect()
143
144	1	def _renew_registration(self):
145		for client in self._discovery_clients.values():
146		client.register_server(self)
147		self.iserver.loop.call_later(self._discovery_period, self._renew_registration)
148
149	1	def get_client_to_discovery(self, url="opc.tcp://localhost:4840"):
150		"""
151		Create a client to discovery server and return it
152		"""
153		client = Client(url)
154		client.connect()
155		return client
156
157	1	def allow_remote_admin(self, allow):
158		"""
159		Enable or disable the builtin Admin user from network clients
160		"""
161		self.iserver.allow_remote_admin = allow
162
163	1	def set_endpoint(self, url):
164	1	self.endpoint = urlparse(url)
165
166	1	def get_endpoints(self):
167	1	return self.iserver.get_endpoints()
168
169	1	def _setup_server_nodes(self):
170		# to be called just before starting server since it needs all parameters to be setup
171	1	self._set_endpoints()
172	1	self._policies = [ua.SecurityPolicyFactory()]
173	1	if self.certificate and self.private_key:
174		self._set_endpoints(security_policies.SecurityPolicyBasic128Rsa15,
175		ua.MessageSecurityMode.SignAndEncrypt)
176		self._policies.append(ua.SecurityPolicyFactory(security_policies.SecurityPolicyBasic128Rsa15,
177		ua.MessageSecurityMode.SignAndEncrypt,
178		self.certificate,
179		self.private_key)
180		)
181		self._set_endpoints(security_policies.SecurityPolicyBasic128Rsa15,
182		ua.MessageSecurityMode.Sign)
183		self._policies.append(ua.SecurityPolicyFactory(security_policies.SecurityPolicyBasic128Rsa15,
184		ua.MessageSecurityMode.Sign,
185		self.certificate,
186		self.private_key)
187		)
188		self._set_endpoints(security_policies.SecurityPolicyBasic256,
189		ua.MessageSecurityMode.SignAndEncrypt)
190		self._policies.append(ua.SecurityPolicyFactory(security_policies.SecurityPolicyBasic256,
191		ua.MessageSecurityMode.SignAndEncrypt,
192		self.certificate,
193		self.private_key)
194		)
195		self._set_endpoints(security_policies.SecurityPolicyBasic256,
196		ua.MessageSecurityMode.Sign)
197		self._policies.append(ua.SecurityPolicyFactory(security_policies.SecurityPolicyBasic256,
198		ua.MessageSecurityMode.Sign,
199		self.certificate,
200		self.private_key)
201		)
202
203	1	def _set_endpoints(self, policy=ua.SecurityPolicy, mode=ua.MessageSecurityMode.None_):
204	1	idtoken = ua.UserTokenPolicy()
205	1	idtoken.PolicyId = 'anonymous'
206	1	idtoken.TokenType = ua.UserTokenType.Anonymous
207
208	1	idtoken2 = ua.UserTokenPolicy()
209	1	idtoken2.PolicyId = 'certificate_basic256'
210	1	idtoken2.TokenType = ua.UserTokenType.Certificate
211
212	1	idtoken3 = ua.UserTokenPolicy()
213	1	idtoken3.PolicyId = 'certificate_basic128'
214	1	idtoken3.TokenType = ua.UserTokenType.Certificate
215
216	1	idtoken4 = ua.UserTokenPolicy()
217	1	idtoken4.PolicyId = 'username'
218	1	idtoken4.TokenType = ua.UserTokenType.UserName
219
220	1	appdesc = ua.ApplicationDescription()
221	1	appdesc.ApplicationName = ua.LocalizedText(self.name)
222	1	appdesc.ApplicationUri = self.application_uri
223	1	appdesc.ApplicationType = self.application_type
224	1	appdesc.ProductUri = self.product_uri
225	1	appdesc.DiscoveryUrls.append(self.endpoint.geturl())
226
227	1	edp = ua.EndpointDescription()
228	1	edp.EndpointUrl = self.endpoint.geturl()
229	1	edp.Server = appdesc
230	1	if self.certificate:
231		edp.ServerCertificate = uacrypto.der_from_x509(self.certificate)
232	1	edp.SecurityMode = mode
233	1	edp.SecurityPolicyUri = policy.URI
234	1	edp.UserIdentityTokens = [idtoken, idtoken2, idtoken3, idtoken4]
235	1	edp.TransportProfileUri = 'http://opcfoundation.org/UA-Profile/Transport/uatcp-uasc-uabinary'
236	1	edp.SecurityLevel = 0
237	1	self.iserver.add_endpoint(edp)
238
239	1	def set_server_name(self, name):
240		self.name = name
241
242	1	def start(self):
243		"""
244		Start to listen on network
245		"""
246	1	self._setup_server_nodes()
247	1	self.iserver.start()
248	1	self.bserver = BinaryServer(self.iserver, self.endpoint.hostname, self.endpoint.port)
249	1	self.bserver.set_policies(self._policies)
250	1	self.bserver.start()
251
252	1	def stop(self):
253		"""
254		Stop server
255		"""
256	1	for client in self._discovery_clients.values():
257	1	client.disconnect()
258	1	self.bserver.stop()
259	1	self.iserver.stop()
260
261	1	def get_root_node(self):
262		"""
263		Get Root node of server. Returns a Node object.
264		"""
265	1	return self.get_node(ua.TwoByteNodeId(ua.ObjectIds.RootFolder))
266
267	1	def get_objects_node(self):
268		"""
269		Get Objects node of server. Returns a Node object.
270		"""
271	1	return self.get_node(ua.TwoByteNodeId(ua.ObjectIds.ObjectsFolder))
272
273	1	def get_server_node(self):
274		"""
275		Get Server node of server. Returns a Node object.
276		"""
277	1	return self.get_node(ua.TwoByteNodeId(ua.ObjectIds.Server))
278
279	1	def get_node(self, nodeid):
280		"""
281		Get a specific node using NodeId object or a string representing a NodeId
282		"""
283	1	return Node(self.iserver.isession, nodeid)
284
285	1	def create_subscription(self, period, handler):
286		"""
287		Create a subscription.
288		returns a Subscription object which allow
289		to subscribe to events or data on server
290		"""
291	1	params = ua.CreateSubscriptionParameters()
292	1	params.RequestedPublishingInterval = period
293	1	params.RequestedLifetimeCount = 3000
294	1	params.RequestedMaxKeepAliveCount = 10000
295	1	params.MaxNotificationsPerPublish = 0
296	1	params.PublishingEnabled = True
297	1	params.Priority = 0
298	1	return Subscription(self.iserver.isession, params, handler)
299
300	1	def get_namespace_array(self):
301		"""
302		get all namespace defined in server
303		"""
304	1	ns_node = self.get_node(ua.NodeId(ua.ObjectIds.Server_NamespaceArray))
305	1	return ns_node.get_value()
306
307	1	def register_namespace(self, uri):
308		"""
309		Register a new namespace. Nodes should in custom namespace, not 0.
310		"""
311	1	ns_node = self.get_node(ua.NodeId(ua.ObjectIds.Server_NamespaceArray))
312	1	uries = ns_node.get_value()
313	1	uries.append(uri)
314	1	ns_node.set_value(uries)
315	1	return len(uries) - 1
316
317	1	def get_namespace_index(self, uri):
318		"""
319		get index of a namespace using its uri
320		"""
321	1	uries = self.get_namespace_array()
322	1	return uries.index(uri)
323
324	1	def get_event_object(self, event=ua.BaseEvent()):
325		"""
326		Returns an event object using an event type from address space.
327		Use this object to fire events
328		"""
329		#TODO: Implement EventTypeID as input paramter
330
331	1	if isinstance(event, ua.BaseEvent):
332	1	source = Node(self.iserver.isession, event.SourceNode)
333	1	if event.SourceNode.Identifier:
334	1	event.SourceName = source.get_display_name().Text
335	1	source.set_attribute(ua.AttributeIds.EventNotifier, ua.DataValue(ua.Variant(1, ua.VariantType.Byte)))
336
337	1	return event
338
339	1	def trigger_event(self, event):
340	1	self.iserver.isession.subscription_service.trigger_event(event)
341
342	1	def import_xml(self, path):
343		"""
344		import nodes defined in xml
345		"""
346	1	importer = xmlimporter.XmlImporter(self.iserver.node_mgt_service)
347	1	importer.import_xml(path)
348
349	1	def delete_nodes(self, nodes, recursive=False):
350	1	return delete_nodes(self.iserver.isession, nodes, recursive)
351
352	1	def historize_node(self, node):
353		self.iserver.enable_history(node)
354
355	1	def dehistorize_node(self, node):
356		self.iserver.disable_history(node)
357

FreeOpcUa / python-opcua

Pull Request — master (#133)

Server.get_event_object() A

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