/
add_event_generator_object.ts
76 lines (64 loc) · 2.29 KB
/
add_event_generator_object.ts
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import { StatusCodes } from "node-opcua-status-code";
import { DataType, Variant } from "node-opcua-variant";
import { Folder, MethodFunctor, MethodFunctorCallback, Namespace, SessionContext } from "../source";
export function add_eventGeneratorObject(
namespace: Namespace,
parentFolder: Folder | string
) {
const myEvtType = namespace.addEventType({
browseName: "MyEventType",
subtypeOf: "BaseEventType" // should be implicit
});
const myObject = namespace.addObject({
browseName: "EventGeneratorObject",
organizedBy: parentFolder
});
myObject.addReference({
nodeId: myEvtType,
referenceType: "AlwaysGeneratesEvent"
});
const method = namespace.addMethod(myObject, {
browseName: "EventGeneratorMethod",
inputArguments: [
{
dataType: DataType.String,
description: { text: "Event Message" },
name: "message"
},
{
dataType: DataType.UInt32,
description: { text: "Event Severity" },
name: "severity"
}
],
outputArguments: []
});
method.bindMethod((
inputArguments: Variant[],
context: SessionContext,
callback: MethodFunctorCallback) => {
// xx console.log("In Event Generator Method");
// xx console.log(this.toString());
// xx console.log(context.object.toString());
// xx console.log("inputArguments ", inputArguments[0].toString());
const message = inputArguments[0].value || "Hello from Event Generator Object";
const severity = inputArguments[1].value || 0;
const myEventType = namespace.addressSpace.findEventType("MyEventType", namespace.index);
context.object.raiseEvent(myEventType, {
message: {
dataType: DataType.LocalizedText,
value: { text: message }
},
severity: {
dataType: DataType.UInt32,
value: severity
}
});
// console.log(require("util").inspect(context).toString());
const callMethodResult = {
outputArguments: [],
statusCode: StatusCodes.Good
};
callback(null, callMethodResult);
});
}