"use strict";
const assert = require("node-opcua-assert").assert;
const _ = require("underscore");
const async = require("async");
const fs = require("fs");
const Xml2Json = require("node-opcua-xml2json").Xml2Json;
const ReaderState = require("node-opcua-xml2json").ReaderState;
const NodeClass = require("node-opcua-data-model").NodeClass;
const resolveNodeId = require("node-opcua-nodeid").resolveNodeId;
const NodeId = require("node-opcua-nodeid").NodeId;
const DataType = require("node-opcua-variant").DataType;
const VariantArrayType = require("node-opcua-variant").VariantArrayType;
const Argument = require("node-opcua-service-call").Argument;
const coerceLocalizedText = require("node-opcua-data-model").coerceLocalizedText;
const EnumValueType = require("node-opcua-data-model").EnumValueType;
const ec = require("node-opcua-basic-types");
const AddressSpace = require("../address_space").AddressSpace;
const EUInformation = require("node-opcua-data-access").EUInformation;
const stringToQualifiedName = require("node-opcua-data-model").stringToQualifiedName;
const debugLog = require("node-opcua-debug").make_debugLog(__filename);
function __make_back_references(namespace) {
_.forEach(namespace._nodeid_index, function (node) {
node.propagate_back_references();
});
_.forEach(namespace._nodeid_index, function (node) {
node.install_extra_properties();
});
}
/**
* @method make_back_references
* @param addressSpace {AddressSpace}
*/
function make_back_references(addressSpace) {
addressSpace.suspendBackReference = false;
addressSpace._namespaceArray.map(namespace => __make_back_references(namespace))
}
function stringToUInt32Array(str) {
const array = str ? str.split(",").map(function (value) {
return parseInt(value);
}) : null;
return array;
}
const makeAccessLevel = require("node-opcua-data-model").makeAccessLevel;
function convertAccessLevel(accessLevel) {
accessLevel = parseInt(accessLevel || 1); // CurrentRead if not specified
return makeAccessLevel(accessLevel);
}
/**
* @module opcua.address_space
* @method generate_address_space
* @param addressSpace
* @param xmlFiles {String|String<>}
* @param callback {Function}
* @param callback.err {null|Error}
* @async
*/
function generate_address_space(addressSpace, xmlFiles, callback) {
let alias_map ={};
/**
*
* @param alias_name {string}
* @param nodeId
*/
function addAlias(alias_name, nodeIdinXmlContext) {
assert(typeof nodeIdinXmlContext === "string");
const nodeId = _translateNodeId(nodeIdinXmlContext);
assert(nodeId instanceof NodeId);
alias_map[alias_name] = nodeId;
addressSpace.getNamespace(nodeId.namespace).addAlias(alias_name,nodeId);
}
let namespace_uri_translation = {};
let namespaceCounter = 0;
let found_namespace_in_uri = {};
function _reset_namespace_translation() {
debugLog("_reset_namespace_translation");
namespace_uri_translation = {};
found_namespace_in_uri = {};
namespaceCounter = 0;
_register_namespace_uri("http://opcfoundation.org/UA/");
alias_map = {};
}
function _translateNamespaceIndex(innerIndex) {
const namespaceIndex = namespace_uri_translation[innerIndex];
if (namespaceIndex === undefined) {
throw new Error("_translateNamespaceIndex! Cannot find namespace definition for index " + innerIndex);
}
return namespaceIndex;
}
function _internal_addReferenceType(params) {
assert(params.nodeId instanceof NodeId); // already translated
addressSpace.getNamespace(params.nodeId.namespace).addReferenceType(params,false);
}
function _internal_createNode(params) {
assert(params.nodeId instanceof NodeId); // already translated
addressSpace.getNamespace(params.nodeId.namespace)._createNode(params);
}
function _register_namespace_uri(namespace_uri) {
if (found_namespace_in_uri[namespace_uri])
return found_namespace_in_uri[namespace_uri];
const namespace = addressSpace.registerNamespace(namespace_uri);
found_namespace_in_uri[namespace_uri] = namespace;
const index_in_xml =namespaceCounter; namespaceCounter++;
namespace_uri_translation[index_in_xml] = namespace.index;
debugLog(" _register_namespace_uri = ",namespace_uri,"index in Xml=",index_in_xml," index in addressSpace",namespace.index);
return namespace;
}
function _register_namespace_uri_model(model) {
const namespace = _register_namespace_uri(model.modelUri);
namespace.version = model.version;
namespace.publicationDate = model.publicationDate;
return namespace;
}
/*=
* convert a nodedId
*
* @method convertToNodeId
* @param nodeId {String|null}
* @return {NodeId}
*
* @example
* convertToNodeId("String") => resolve alias
* convertToNodeId("i=58") => resolve to nodeId in namespace 0
* convertToNodeId("ns=1;i=100") => convert namespace from xml namespace table to corresponding namespace in addressapce
*/
const reg = /ns=([0-9]+);(.*)/;
function _translateNodeId(nodeId) {
assert(typeof nodeId === "string");
if (alias_map[nodeId]) {
return alias_map[nodeId];
}
const m = nodeId.match(reg);
if (m) {
const namespaceIndex = _translateNamespaceIndex(parseInt(m[1]));
nodeId = "ns=" + namespaceIndex + ";" + m[2];
}
return resolveNodeId(nodeId);
}
function _translateReferenceType(refType) {
return _translateNodeId(refType);
}
function convertToNodeId(nodeId) {
// treat alias
if (!nodeId) {
return null;
}
nodeId = _translateNodeId(nodeId);
return addressSpace.resolveNodeId(nodeId);
}
function convertQualifiedName(qualifiedName) {
const qn = stringToQualifiedName(qualifiedName);
//Xx if (qn.namespaceIndex > 0) {
qn.namespaceIndex = _translateNamespaceIndex(qn.namespaceIndex);
//Xx }
return qn;
}
assert(addressSpace instanceof AddressSpace);
assert(_.isFunction(callback)); // expecting a callback
const state_Alias = {
finish: function () {
addAlias(this.attrs.Alias, this.text);
}
};
const references_parser = {
init: function () {
this.parent.obj.references = [];
this.array = this.parent.obj.references;
},
parser: {
"Reference": {
finish: function () {
this.parent.array.push({
referenceType: _translateReferenceType(this.attrs.ReferenceType),
isForward: (this.attrs.IsForward === undefined) ? true : (this.attrs.IsForward === "false" ? false : true),
nodeId: convertToNodeId(this.text)
});
}
}
}
};
//<Definition Name="SomeName">
// <Field Name="Running" Value="0" dataType: [ValueRank="1"]>
// [<Description>text</Description>]
// <Field>
//</Definition>
const definition_parser = {
init: function (name, attrs) {
this.parent.obj.definition = [];
this.parent.obj.definition_name = attrs.Name;
this.array = this.parent.obj.definition;
},
parser: {
"Field": {
init: function () {
this.description = undefined;
},
parser: {
"Description": {
finish: function () {
this.parent.description = this.text;
}
}
},
finish: function () {
this.parent.array.push({
name: this.attrs.Name,
value: this.attrs.Value,
dataType: convertToNodeId(this.attrs.DataType),
valueRank: parseInt(this.attrs.ValueRank || "-1"),
description: this.description
});
}
}
}
};
const state_UAObject = {
init: function (name, attrs) {
this.obj = {};
this.obj.nodeClass = NodeClass.Object;
this.obj.isAbstract = ec.coerceBoolean(attrs.IsAbstract);
this.obj.nodeId = convertToNodeId(attrs.NodeId) || null;
this.obj.browseName = convertQualifiedName(attrs.BrowseName);
this.obj.eventNotifier = ec.coerceByte(attrs.EventNotifier) || 0;
this.obj.symbolicName = attrs.SymbolicName || null;
},
finish: function () {
//xx debugLog("xxxx add object ".red,this.obj.nodeId.toString().yellow , this.obj.browseName);
_internal_createNode(this.obj);
},
parser: {
"DisplayName": {
finish: function () {
this.parent.obj.displayName = this.text;
}
},
"Description": {
finish: function () {
this.parent.obj.description = this.text;
}
},
"References": references_parser
}
};
const state_UAObjectType = {
init: function (name, attrs) {
this.obj = {};
this.obj.nodeClass = NodeClass.ObjectType;
this.obj.isAbstract = ec.coerceBoolean(attrs.IsAbstract);
this.obj.nodeId = convertToNodeId(attrs.NodeId) || null;
this.obj.browseName = convertQualifiedName(attrs.BrowseName);
this.obj.eventNotifier = ec.coerceByte(attrs.EventNotifier) || 0;
},
finish: function () {
_internal_createNode(this.obj);
},
parser: {
"DisplayName": {
finish: function () {
this.parent.obj.displayName = this.text;
}
},
"Description": {
finish: function () {
this.parent.obj.description = this.text;
}
},
"References": references_parser
}
};
const state_UAReferenceType = {
init: function (name, attrs) {
this.obj = {};
this.obj.nodeClass = NodeClass.ReferenceType;
this.obj.isAbstract = ec.coerceBoolean(attrs.IsAbstract);
this.obj.nodeId = convertToNodeId(attrs.NodeId) || null;
this.obj.browseName = convertQualifiedName(attrs.BrowseName);
},
finish: function () {
_internal_addReferenceType(this.obj, false);
},
parser: {
"DisplayName": {
finish: function () {
this.parent.obj.displayName = this.text;
}
},
"Description": {
finish: function () {
this.parent.obj.description = this.text;
}
},
"InverseName": {
finish: function () {
this.parent.obj.inverseName = this.text;
}
},
"References": references_parser
}
};
const state_UADataType = {
init: function (name, attrs) {
this.obj = {};
this.obj.nodeClass = NodeClass.DataType;
this.obj.isAbstract = ec.coerceBoolean(attrs.IsAbstract);
this.obj.nodeId = convertToNodeId(attrs.NodeId) || null;
this.obj.browseName = convertQualifiedName(attrs.BrowseName);
this.obj.displayName = "";
this.obj.description = "";
},
finish: function () {
_internal_createNode(this.obj);
assert(addressSpace.findNode(this.obj.nodeId));
},
parser: {
"DisplayName": {
finish: function () {
this.parent.obj.displayName = this.text;
}
},
"Description": {
finish: function () {
this.parent.obj.description = this.text;
}
},
"References": references_parser,
"Definition": definition_parser
}
};
const localizedText_parser = {
"LocalizedText": {
init: function () {
this.localizedText = {};
},
parser: {
"Locale": {
finish: function () {
this.parent.localizedText.locale = this.text.trim();
}
},
"Text": {
finish: function () {
this.parent.localizedText.text = this.text.trim();
}
}
}
}
};
const enumValueType_parser = {
"EnumValueType": {
init: function () {
this.enumValueType = {
value: 0,
displayName: null,
description: null
};
},
parser: {
"Value": {
finish: function () {
this.parent.enumValueType.value = parseInt(this.text);
}
},
"DisplayName": _.extend(_.clone(localizedText_parser.LocalizedText), {
finish: function () {
this.parent.enumValueType.displayName = _.clone(this.localizedText);
}
}),
"Description": _.extend(_.clone(localizedText_parser.LocalizedText), {
finish: function () {
this.parent.enumValueType.description = _.clone(this.localizedText);
}
})
},
finish: function () {
this.enumValueType = new EnumValueType(this.enumValueType);
}
}
};
const argument_parser = {
"Argument": {
init: function () {
this.argument = {};
},
parser: {
"Name": {
finish: function () {
this.parent.argument.name = this.text.trim();
}
},
"DataType": {
parser: {
"Identifier": {
finish: function () {
this.parent.parent.argument.dataType = resolveNodeId(this.text.trim());
}
}
}
},
"ValueRank": {
finish: function () {
this.parent.argument.valueRank = parseInt(this.text.trim());
}
},
"ArrayDimensions": {
finish: function () {
//xx this.parent.argument.arrayDimensions =[];
}
},
"Description": {
init: function () {
this._text = "";
this.locale = null;
this.text = null;
},
parser: {
"Locale": {
init: function () {
this.text = "";
},
finish: function () {
this.parent.locale = this.text.trim();
}
},
"Text": {
finish: function () {
this.text = this.text || "";
this.parent._text = this.text.trim();
}
}
},
finish: function () {
this.parent.argument.description = coerceLocalizedText(this._text);
}
}
},
finish: function () {
this.argument = new Argument(this.argument);
}
}
};
const Range_parser = {
"Range": {
init: function() {
this.range ={};
},
parser: {
"Low": {
finish: function () {
this.parent.range.low = parseFloat(this.text);
}
},
"High": {
finish: function () {
this.parent.range.high = parseFloat(this.text);
}
}
}
}
};
const EUInformation_parser = {
"EUInformation": {
init: function () {
this.euInformation = {};
},
parser: {
"NamespaceUri": {
finish: function () {
this.parent.euInformation.namespaceUri = this.text;
}
},
"UnitId": {
finish: function () {
this.parent.euInformation.unitId = parseInt(this.text);
}
},
"DisplayName": _.extend(_.clone(localizedText_parser.LocalizedText), {
finish: function () {
this.parent.euInformation.displayName = _.clone(this.localizedText);
}
}),
"Description": _.extend(_.clone(localizedText_parser.LocalizedText), {
finish: function () {
this.parent.euInformation.description = _.clone(this.localizedText);
}
})
},
finish: function () {
this.euInformation = new EUInformation(this.euInformation);
}
}
};
const _extensionObject_inner_parser = {
"TypeId": {
parser: {
"Identifier": {
finish: function () {
const typeId = this.text.trim();
//xx console.log("typeId = ",typeId);
this.parent.parent.typeId = resolveNodeId(typeId);
switch (typeId) {
case "i=297": // Argument
case "ns=0;i=297": // Argument
break;
case "ns=0;i=7616": // EnumValueType
case "i=7616": // EnumValueType
break;
case "ns=0;i=888": // EnumValueType
case "i=888": // EUInformation
break;
case "ns=0;i=885": // Range
case "i=885": // Range
break;
default:
console.warn("loadnodeset2 ( checking identifier type) : unsupported typeId in ExtensionObject " + typeId);
break;
}
}
}
}
},
"Body": {
parser: {
"Argument": argument_parser.Argument,
"EnumValueType": enumValueType_parser.EnumValueType,
"EUInformation": EUInformation_parser.EUInformation,
"Range": Range_parser.Range
},
finish: function () {
const self = this.parent;
switch (self.typeId.toString()) {
case "ns=0;i=7616": // EnumValueType
self.extensionObject = self.parser.Body.parser.EnumValueType.enumValueType;
assert(_.isObject(self.extensionObject));
break;
case "ns=0;i=297": // Arguments
self.extensionObject = self.parser.Body.parser.Argument.argument;
assert(_.isObject(self.extensionObject));
break;
case "i=888":
case "ns=0;i=888": // EUInformation
self.extensionObject = self.parser.Body.parser.EUInformation.euInformation;
assert(_.isObject(self.extensionObject));
break;
case "i=885": // Range
case "ns=0;i=885":
self.extensionObject = self.parser.Body.parser.Range.range;
assert(_.isObject(self.extensionObject));
break;
default:
// to do: implement a post action to create and bind extension object
console.log("loadnodeset2: unsupported typeId in ExtensionObject " + self.typeId.toString());
break;
}
}
}
};
const extensionObject_parser = {
"ExtensionObject": {
init: function () {
this.typeId = {};
this.extensionObject = null;
},
parser: _extensionObject_inner_parser
}
};
function BasicType_parser(dataType, parseFunc) {
const parser = {};
parser[dataType] = {
init: function () {
this.value = 0;
},
finish: function () {
this.value = parseFunc(this.text);
}
};
return parser;
}
function ListOf(dataType, parseFunc) {
return {
init: function () {
this.listData = [];
},
parser: BasicType_parser(dataType, parseFunc),
finish: function () {
this.parent.parent.obj.value = {
dataType: DataType[dataType],
arrayType: VariantArrayType.Array,
value: this.listData
};
},
endElement: function (element) {
this.listData.push(this.parser[dataType].value);
}
};
}
const state_Variant = {
parser: {
"String": {
finish: function () {
this.parent.parent.obj.value = {
dataType: DataType.String,
value: this.text
};
}
},
"Boolean": {
finish: function () {
this.parent.parent.obj.value = {
dataType: DataType.Boolean,
value: this.text.toLowerCase() === "true" ? true : false
};
}
},
"ByteString": {
init: function () {
this.value = null;
},
finish: function () {
const base64text = this.text;
const byteString = Buffer.from(base64text, "base64");
this.parent.parent.obj.value = {
dataType: DataType.ByteString,
arrayType: VariantArrayType.Scalar,
value: byteString
};
}
},
"Float": {
finish: function () {
this.parent.parent.obj.value = {
dataType: DataType.Float,
value: parseFloat(this.text)
}
}
},
"Double": {
finish: function () {
this.parent.parent.obj.value = {
dataType: DataType.Double,
value: parseFloat(this.text)
}
}
},
"ListOfLocalizedText": {
init: function () {
this.listData = [];
},
parser: localizedText_parser,
finish: function () {
this.parent.parent.obj.value = {
dataType: DataType.LocalizedText,
arrayType: VariantArrayType.Array,
value: this.listData
};
},
endElement: function (/*element*/) {
this.listData.push(this.parser.LocalizedText.localizedText);
}
},
"ListOfDouble": ListOf("Double", parseFloat),
"ListOfFloat": ListOf("Float", parseFloat),
"ListOfInt32": ListOf("Int32", parseInt),
"ListOfInt16": ListOf("Int16", parseInt),
"ListOfInt8": ListOf("Int8", parseInt),
"ListOfUint32": ListOf("Uint32", parseInt),
"ListOfUint16": ListOf("Uint16", parseInt),
"ListOfUint8": ListOf("Uint8", parseInt),
"ListOfExtensionObject": {
init: function () {
this.listData = [];
},
parser: extensionObject_parser,
finish: function () {
this.parent.parent.obj.value = {
dataType: DataType.ExtensionObject,
arrayType: VariantArrayType.Array,
value: this.listData
};
},
endElement: function (element) {
if (this.parser.ExtensionObject.extensionObject) {
//assert(element === "ExtensionObject");
this.listData.push(this.parser.ExtensionObject.extensionObject);
}
}
},
"ExtensionObject": {
init: function () {
this.typeId = {};
this.extensionObject = null;
},
parser: _extensionObject_inner_parser,
finish: function () {
this.parent.parent.obj.value = {
dataType: DataType.ExtensionObject,
value: this.extensionObject
};
}
}
}
};
const state_UAVariable = {
init: function (name, attrs) {
this.obj = {};
this.obj.nodeClass = NodeClass.Variable;
this.obj.browseName = convertQualifiedName(attrs.BrowseName);
this.obj.parentNodeId = convertToNodeId(attrs.ParentNodeId);
this.obj.dataType = convertToNodeId(attrs.DataType);
this.obj.valueRank = ec.coerceInt32(attrs.ValueRank) || -1;
this.obj.arrayDimensions = this.obj.valueRank === -1 ? null : stringToUInt32Array(attrs.ArrayDimensions);
this.obj.minimumSamplingInterval = attrs.MinimumSamplingInterval ? parseInt(attrs.MinimumSamplingInterval) : 0;
this.obj.minimumSamplingInterval = parseInt(this.obj.minimumSamplingInterval);
this.obj.historizing = false;
this.obj.nodeId = convertToNodeId(attrs.NodeId) || null;
this.obj.accessLevel = convertAccessLevel(attrs.AccessLevel);
this.obj.userAccessLevel = convertAccessLevel(attrs.UserAccessLevel);
},
finish: function () {
_internal_createNode(this.obj);
},
parser: {
"DisplayName": {
finish: function () {
this.parent.obj.displayName = this.text;
}
},
"Description": {
finish: function () {
this.parent.obj.description = this.text;
}
},
"References": references_parser,
"Value": state_Variant
}
};
const state_UAVariableType = {
init: function (name, attrs) {
this.obj = {};
this.obj.isAbstract = ec.coerceBoolean(attrs.IsAbstract);
this.obj.nodeClass = NodeClass.VariableType;
this.obj.browseName = convertQualifiedName(attrs.BrowseName);
this.obj.parentNodeId = attrs.ParentNodeId || null;
this.obj.dataType = convertToNodeId(attrs.DataType) || null;
this.obj.valueRank = ec.coerceInt32(attrs.ValueRank) || -1;
this.obj.arrayDimensions = this.obj.valueRank === -1 ? null : stringToUInt32Array(attrs.ArrayDimensions);
this.obj.minimumSamplingInterval = attrs.MinimumSamplingInterval ? parseInt(attrs.MinimumSamplingInterval) : 0;
this.obj.historizing = false;
this.obj.nodeId = convertToNodeId(attrs.NodeId) || null;
},
finish: function () {
try {
_internal_createNode(this.obj);
}
catch (err) {
this.obj.addressSpace = null;
console.warn(" Cannot create object", JSON.stringify(this.obj, null, " "));
throw err;
}
},
parser: {
"DisplayName": {
finish: function () {
this.parent.obj.displayName = this.text;
}
},
"Description": {
finish: function () {
this.parent.obj.description = this.text;
}
},
"References": references_parser,
"Value": state_Variant
}
};
const state_UAMethod = {
init: function (name, attrs) {
this.obj = {};
this.obj.nodeClass = NodeClass.Method;
// MethodDeclarationId
// ParentNodeId
this.obj.browseName = convertQualifiedName(attrs.BrowseName);
this.obj.parentNodeId = attrs.ParentNodeId || null;
this.obj.nodeId = convertToNodeId(attrs.NodeId) || null;
this.obj.methodDeclarationId = attrs.MethodDeclarationId ? resolveNodeId(attrs.MethodDeclarationId) : null;
},
finish: function () {
_internal_createNode(this.obj);
},
parser: {
"DisplayName": {
finish: function () {
this.parent.obj.displayName = this.text;
}
},
"References": references_parser
}
};
const state_ModelTableEntry = new ReaderState({ // ModelTableEntry
init: function() {
this._requiredModels = [];
},
parser: {
//xx "RequiredModel": null
},
finish: function () {
const modelUri = this.attrs.ModelUri; // //"http://opcfoundation.org/UA/"
const version = this.attrs.Version; // 1.04
const publicationDate = this.attrs.PublicationDate; //"2018-05-15T00:00:00Z" "
// optional,
const symbolicName = this.attrs.SymbolicName;
const accessRestrictions = this.attrs.AccessRestrictions;
const namespace = _register_namespace_uri_model({
modelUri: modelUri,
version: version,
publicationDate: publicationDate,
symbolicName: symbolicName,
requiredModels: this._requiredModels,
accessRestrictions: accessRestrictions,
});
this._requiredModels.push(namespace);
}
});
// state_ModelTableEntry.parser["RequiredModel"] = state_ModelTableEntry;
const state_0 = {
parser: {
"NamespaceUris": {
init: function () {
},
parser: {
"Uri": {
finish: function () {
_register_namespace_uri(this.text);
}
}
}
},
"Models": { // ModelTable
init: function () {
},
parser: {
"Model": state_ModelTableEntry
},
finish() {
}
},
"Aliases": {parser: {"Alias": state_Alias}},
"UAObject": state_UAObject,
"UAObjectType": state_UAObjectType,
"UAReferenceType": state_UAReferenceType,
"UADataType": state_UADataType,
"UAVariable": state_UAVariable,
"UAVariableType": state_UAVariableType,
"UAMethod": state_UAMethod
}
};
if (!_.isArray(xmlFiles)) {
xmlFiles = [xmlFiles];
}
const parser = new Xml2Json(state_0);
addressSpace.suspendBackReference = true;
async.mapSeries(xmlFiles, function (xmlFile, callback) {
if (!fs.existsSync(xmlFile)) {
throw new Error("generate_address_space : cannot file nodeset2 xml file at " + xmlFile);
}
debugLog(" parsing ",xmlFile);
_reset_namespace_translation();
parser.parse(xmlFile, callback);
}, function () {
make_back_references(addressSpace);
assert(!addressSpace.suspendBackReference);
callback.apply(this, arguments);
});
}
exports.generate_address_space = generate_address_space;
The NodeOPCUA API