/
address_space_add_MultiStateValueDiscrete.js
211 lines (170 loc) · 7.01 KB
/
address_space_add_MultiStateValueDiscrete.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
const assert = require("node-opcua-assert").assert;
const _ = require("underscore");
const DataType = require("node-opcua-variant").DataType;
const Variant = require("node-opcua-variant").Variant;
const VariantArrayType = require("node-opcua-variant").VariantArrayType;
const add_dataItem_stuff = require("./UADataItem").add_dataItem_stuff;
const coerceLocalizedText = require("node-opcua-data-model").coerceLocalizedText;
const EnumValueType = require("node-opcua-data-model").EnumValueType;
const Namespace = require("../namespace").Namespace;
function coerceEnumValues(enumValues) {
if (_.isArray(enumValues)) {
//
return _.map(enumValues, function (en) {
assert(en.hasOwnProperty("value"));
assert(en.hasOwnProperty("displayName"));
return new EnumValueType({
value: en.value,
displayName: coerceLocalizedText(en.displayName)
});
})
} else {
return coerceEnumValues(_.map(enumValues, function (value, key) {
return new EnumValueType({
value: value,
displayName: coerceLocalizedText(key),
description: coerceLocalizedText(key)
});
}));
}
}
module.exports.install = function (AddressSpace) {
/**
*
* @method addMultiStateValueDiscrete
* @param options {Object}
* @param options.browseName {String}
* @param [options.nodeId {NodeId}]
* @param [options.value {UInt32} = 0 }
* @param options.enumValues { EnumValueType[]| {Key,Value} }
* @return {Object|UAVariable}
*
* @example
*
*
* namespace.addMultiStateValueDiscrete({
* componentOf:parentObj,
* browseName: "myVar",
* enumValues: {
* "Red": 0xFF0000,
* "Green": 0x00FF00,
* "Blue": 0x0000FF
* }
* });
* addMultiStateValueDiscrete(parentObj,{
* browseName: "myVar",
* enumValues: [
* {
* value: 0xFF0000,
* displayName: "Red",
* description: " The color Red"
* },
* {
* value: 0x00FF000,
* displayName: "Green",
* description: " The color Green"
* },
* {
* value: 0x0000FF,
* displayName: "Blue",
* description: " The color Blue"
* }
*
* ]
* });
*/
AddressSpace.prototype.addMultiStateValueDiscrete = function (options) {
return this._resolveRequestedNamespace(options).addMultiStateValueDiscrete(options);
};
Namespace.prototype.addMultiStateValueDiscrete = function(options) {
assert(options.hasOwnProperty("enumValues"));
assert(!options.hasOwnProperty("ValuePrecision"));
const namespace = this;
const addressSpace = namespace.addressSpace;
const multiStateValueDiscreteType = addressSpace.findVariableType("MultiStateValueDiscreteType");
assert(multiStateValueDiscreteType, "expecting MultiStateValueDiscreteType to be defined , check nodeset xml file");
// todo : if options.typeDefinition is specified, check that type is SubTypeOf MultiStateDiscreteType
// EnumValueType
// value: Int64, displayName: LocalizedText, Description: LocalizedText
const enumValues = coerceEnumValues(options.enumValues);
options.value = ( options.value === undefined) ? enumValues[0].value : options.value;
let cloned_options = _.clone(options);
cloned_options = _.extend(cloned_options,{
typeDefinition: multiStateValueDiscreteType.nodeId,
dataType: "Number",
// valueRank:
// note : OPCUA Spec 1.03 specifies -1:Scalar (part 8 page 8) but nodeset file specifies -2:Any
valueRank: -1, // -1 : Scalar
value: new Variant({dataType: DataType.UInt32, value: options.value})
});
const variable = namespace.addVariable(cloned_options);
add_dataItem_stuff(variable, options);
namespace.addVariable({
propertyOf: variable,
typeDefinition: "PropertyType",
browseName: {name:"EnumValues",namespaceIndex:0},
dataType: "EnumValueType",
accessLevel: "CurrentRead",
userAccessLevel: "CurrentRead",
minimumSamplingInterval: 0,
value: new Variant({
dataType: DataType.ExtensionObject,
arrayType: VariantArrayType.Array,
value: enumValues
}),
modellingRule: options.modellingRule ? "Mandatory" : undefined
});
// construct an index to quickly find a EnumValue from a value
const enumValueIndex = {};
enumValues.forEach(function (e) {
enumValueIndex[e.value[1]] = e;
});
variable.enumValues._index = enumValueIndex;
function findValueAsText(value) {
assert(!(value instanceof Variant));
let valueAsText = "Invalid";
if (enumValueIndex[value]) {
valueAsText = enumValueIndex[value].displayName;
}
const result = new Variant({
dataType: DataType.LocalizedText,
value: coerceLocalizedText(valueAsText)
});
return result;
}
const valueAsText = findValueAsText(options.value);
namespace.addVariable({
propertyOf: variable,
typeDefinition: "PropertyType",
browseName: {name:"ValueAsText",namespaceIndex: 0},
dataType: "LocalizedText",
accessLevel: "CurrentRead",
userAccessLevel: "CurrentRead",
minimumSamplingInterval: 0,
value: valueAsText,
modellingRule: options.modellingRule ? "Mandatory" : undefined
});
// install additional helpers methods
variable.install_extra_properties();
function install_synchronisation(variable) {
variable.on("value_changed", function (value, indexRange) {
const valueAsText = findValueAsText(value.value.value);
variable.valueAsText.setValueFromSource(valueAsText);
});
}
install_synchronisation(variable);
// replace clone
const old_clone = variable.clone;
assert(_.isFunction(old_clone));
function new_clone() {
const self = this;
const variable = old_clone.apply(self, arguments);
install_synchronisation(variable);
return variable;
}
variable.clone = new_clone;
assert(variable.enumValues.browseName.toString() === "EnumValues");
assert(variable.valueAsText.browseName.toString() === "ValueAsText");
return variable;
};
};