def parse_service_type_fb(self, fb, fb_xml):
self.__parse_all_fb(fb, fb_xml)
# create the ua method to call
fb = self.ua_peer.config.get_fb(self.fb_name)
# creates the connection to initialize the fb
self.ua_peer.config.create_connection(
'{0}.{1}'.format('START', 'COLD'),
'{0}.{1}'.format(self.fb_name, 'INIT'))
# virtualize the method that allows the remote running
ua_method.Method2Call('RUN', fb, self.ua_peer)
def __dm_method(self, method_xml):
"""
Receives a method in the XML format and creates it's OPC-UA representation.
The XML representation comes from the data model XML.
:param method_xml: XML method from the data_model.xml.
"""
method_name = method_xml.attrib['name']
# gets the created fb
fb = self.ua_peer.config.get_fb(self.fb_name)
method2call = ua_method.Method2Call(method_name, fb, self.ua_peer)
# parses the method from the xml
method2call.from_xml(method_xml)
# virtualize (opc-ua) the method
method2call.virtualize(self.methods_idx, self.methods_path,
method2call.method_name)
# save the method in the dictionary
self.methods_dict[method_name] = method2call
def __fb_method(self, input_event, input_vars_xml, output_vars_xml):
"""
Receives a method in the XML format and creates it's OPC-UA representation.
The XML representation comes from the function block XML.
:param input_event: event that represents the method name.
:param input_vars_xml: method input variables XML
:param output_vars_xml: method output variables XML
"""
# gets the method name
method_name = input_event.attrib['Name']
# gets the created fb
fb = self.ua_peer.config.get_fb(self.fb_name)
# creates the opc-ua method
method2call = ua_method.Method2Call(method_name, fb, self.ua_peer)
# parses the inputs_vars and the output_vars
method2call.from_fb(input_vars_xml, output_vars_xml)
# virtualize (opc-ua) the method
method2call.virtualize(self.methods_idx, self.methods_path,
method2call.method_name)
# save the method in the dictionary
self.methods_dict[method_name] = method2call