[xmlimporter] support for values with ListOfLocalizedText (#238)

opcua/common/xmlimporter.py

@@ -95,7 +95,10 @@ class XmlImporter(object):
         attrs.DataType = self.to_nodeid(obj.datatype)
         # if obj.value and len(obj.value) == 1:
         if obj.value is not None:
-            attrs.Value = ua.Variant(obj.value, getattr(ua.VariantType, obj.valuetype))
+            if obj.valuetype == 'ListOfLocalizedText':
+                attrs.Value = ua.Variant([ua.LocalizedText(txt) for txt in obj.value], None)
+            else:
+                attrs.Value = ua.Variant(obj.value, getattr(ua.VariantType, obj.valuetype))
         if obj.rank:
             attrs.ValueRank = obj.rank
         if obj.accesslevel:

opcua/common/xmlparser.py

@@ -167,10 +167,24 @@ class XMLParser(object):
             elif ntag == "ListOfExtensionObject":
                 self.logger.info("Value type not implemented: %s", ntag)
             elif ntag == "ListOfLocalizedText":
-                self.logger.info("Value type not implemented: %s", ntag)
+                obj.value = self._parse_list_of_localized_text(el)
             else:
                 self.logger.info("Value type not implemented: %s", ntag)
 
+    def _parse_list_of_localized_text(self, el):
+        value = []
+        for localized_text_list in el:
+            for localized_text in localized_text_list:
+                ntag = self._retag.match(localized_text.tag).groups()[1]
+                for child in localized_text:
+                    ntag = self._retag.match(child.tag).groups()[1]
+                    if ntag == 'Text':
+                        txt = ""
+                        for text  in child.itertext():
+                            txt += text                        
+                        value.append(txt)
+        return value
+
     def _parse_refs(self, el, obj):
         for ref in el:
             if ref.attrib["ReferenceType"] == "HasTypeDefinition":

tests/custom_nodes.xml

 <?xml version="1.0" encoding="utf-8"?>
-<UANodeSet xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" Version="1.02" LastModified="2013-03-06T05:36:44.0862658Z" xmlns="http://opcfoundation.org/UA/2011/03/UANodeSet.xsd">
+<UANodeSet xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" Version="1.02" LastModified="2013-03-06T05:36:44.0862658Z" xmlns="http://opcfoundation.org/UA/2011/03/UANodeSet.xsd" xmlns:uax="http://opcfoundation.org/UA/2008/02/Types.xsd">
   <Aliases>
+     <Alias Alias="LocalizedText">i=21</Alias>
+     <Alias Alias="HasModellingRule">i=37</Alias>
+     <Alias Alias="HasTypeDefinition">i=40</Alias>
+     <Alias Alias="HasSubtype">i=45</Alias>
+     <Alias Alias="HasProperty">i=46</Alias>
      <Alias Alias="MyCustomString">ns=1;i=3008</Alias>
+     <Alias Alias="MyEnum">ns=1;i=3010</Alias>
   </Aliases>
 
   <UAObject NodeId="i=30001" BrowseName="MyXMLFolder"  >
@@ -44,6 +50,7 @@
 
   <UAVariable NodeId="i=30006" BrowseName="MyXMLVariableWithoutValue" DataType="String">
     <References>
+    
       <Reference ReferenceType="HasTypeDefinition">i=69</Reference>
       <Reference ReferenceType="Organizes" IsForward="false">i=30002</Reference>
     </References>
@@ -62,4 +69,41 @@
       <Reference ReferenceType="Organizes" IsForward="false">i=30002</Reference>
     </References>
   </UAVariable>
+  
+  <UADataType NodeId="ns=1;i=3010" BrowseName="1:MyEnum">
+        <DisplayName>MyEnum</DisplayName>
+        <Description>Demonstrates enums</Description>
+        <References>
+            <Reference ReferenceType="HasProperty">ns=1;i=6001</Reference>
+            <Reference ReferenceType="HasSubtype" IsForward="false">i=29</Reference>
+        </References>
+        <Definition Name="1:MyEnum">
+            <Field Name="ok" Value="0"/>
+            <Field Name="run" Value="1"/>
+            <Field Name="error" Value="2"/>
+        </Definition>
+  </UADataType>
+    
+  <UAVariable DataType="LocalizedText" ParentNodeId="ns=1;i=3010" ValueRank="1" NodeId="ns=1;i=6001" ArrayDimensions="3" BrowseName="EnumStrings">
+        <DisplayName>EnumStrings</DisplayName>
+        <References>
+            <Reference ReferenceType="HasProperty" IsForward="false">ns=1;i=3010</Reference>
+            <Reference ReferenceType="HasModellingRule">i=78</Reference>
+            <Reference ReferenceType="HasTypeDefinition">i=68</Reference>
+        </References>
+        <Value>
+            <uax:ListOfLocalizedText>
+                <uax:LocalizedText>
+                    <uax:Text>ok</uax:Text>
+                </uax:LocalizedText>
+                <uax:LocalizedText>
+                    <uax:Text>run</uax:Text>
+                </uax:LocalizedText>
+                <uax:LocalizedText>
+                    <uax:Text>error</uax:Text>
+                </uax:LocalizedText>
+            </uax:ListOfLocalizedText>
+        </Value>
+    </UAVariable>
+      
 </UANodeSet>

tests/tests_server.py

@@ -134,7 +134,11 @@ class TestServer(unittest.TestCase, CommonTests, SubscriptionTests):
         v = o.get_child(["MyXMLFolder", "MyXMLObject", "MyXMLVariable"])
         val = v.get_value()
         self.assertEqual(val, "StringValue")
+        
+        o = self.opc.get_root_node().get_child(["Types", "DataTypes", "BaseDataType", "Enumeration", "1:MyEnum", "0:EnumStrings"])
+        self.assertEqual(len(o.get_value() ), 3)
 
+        
     def test_historize_variable(self):
         o = self.opc.get_objects_node()
         var = o.add_variable(3, "test_hist", 1.0)