56 lines
1.4 KiB
JavaScript
56 lines
1.4 KiB
JavaScript
import Logger from '../logger';
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import uuid from 'uuid';
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var SERVER;
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const SERVER_ANNOUNCEMENTS = 'serverAnnouncements';
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class AnnouncementRefresher {
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constructor(pubClient, subClient) {
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this.pubClient = pubClient;
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this.subClient = subClient;
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this.uuid = uuid.v4();
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process.nextTick(this.init.bind(this));
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}
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init() {
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SERVER = require('../server').getServer();
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SERVER.on('announcement', this.sendAnnouncement.bind(this));
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this.subClient.once('ready', () => {
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this.subClient.on('message', this.handleMessage.bind(this));
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this.subClient.subscribe(SERVER_ANNOUNCEMENTS);
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});
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}
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handleMessage(channel, message) {
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if (channel !== SERVER_ANNOUNCEMENTS) {
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return;
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}
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var data;
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try {
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data = JSON.parse(message);
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} catch (error) {
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Logger.errlog.log('Unable to unmarshal server announcement: ' + error.stack
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+ '\nMessage was: ' + message);
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return;
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}
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if (data.partitionID === this.uuid) {
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return;
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}
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SERVER.setAnnouncement(data.data);
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}
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sendAnnouncement(data) {
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const message = JSON.stringify({
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data: data,
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partitionID: this.uuid
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});
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this.pubClient.publish(SERVER_ANNOUNCEMENTS, message);
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}
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}
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export { AnnouncementRefresher };
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