node-opcua-server
Version:
pure nodejs OPCUA SDK - module server
53 lines • 2.47 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.TransferredSubscription = void 0;
const node_opcua_types_1 = require("node-opcua-types");
const node_opcua_assert_1 = __importDefault(require("node-opcua-assert"));
class TransferredSubscription {
constructor(options) {
this.id = options.id;
this._sequence_number_generator = options.generator;
this.publishEngine = options.publishEngine;
}
get hasPendingNotifications() {
return !!this._pending_notification;
}
dispose() {
this._pending_notification = undefined;
this.publishEngine = null;
}
_publish_pending_notifications() {
(0, node_opcua_assert_1.default)(this._pending_notification);
const notificationMessage = this._pending_notification;
this._pending_notification = undefined;
const moreNotifications = false;
const subscriptionId = this.id;
const response = new node_opcua_types_1.PublishResponse({
moreNotifications,
notificationMessage: {
notificationData: [notificationMessage],
publishTime: new Date(),
sequenceNumber: 0xffffffff
},
subscriptionId
});
// apply sequence number and store in sent_notifications queue
(0, node_opcua_assert_1.default)(response.notificationMessage.sequenceNumber === 0xffffffff);
response.notificationMessage.sequenceNumber = this._get_next_sequence_number();
// xxx this._sent_notifications.push(response.notificationMessage);
// get available sequence number;
const availableSequenceNumbers = [response.notificationMessage.sequenceNumber];
(0, node_opcua_assert_1.default)(!response.notificationMessage ||
availableSequenceNumbers[availableSequenceNumbers.length - 1] === response.notificationMessage.sequenceNumber);
response.availableSequenceNumbers = availableSequenceNumbers;
this.publishEngine._send_response(this, response);
}
_get_next_sequence_number() {
return this._sequence_number_generator ? this._sequence_number_generator.next() : 0;
}
}
exports.TransferredSubscription = TransferredSubscription;
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