earlect/dist/hall.js

Leader Election Generic Implementation for TypeScript

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const pino_1 = __importDefault(require("pino"));
const logger = pino_1.default();
var HallMessages;
(function (HallMessages) {
    HallMessages["LEADER_SHOUT"] = "earlect.leader_shout";
    HallMessages["CHALLENGE"] = "earlect.challenge";
    HallMessages["CHALLENGE_RUMOUR"] = "earlect.challenge_rumour";
})(HallMessages = exports.HallMessages || (exports.HallMessages = {}));
class Hall {
    constructor(communicationMedium) {
        this.communicationMedium = communicationMedium;
    }
    static async create(communicationMedium) {
        const hall = new Hall(communicationMedium);
        return hall;
    }
    registerViking(viking) {
        const hall = this;
        hall.communicationMedium.receive(HallMessages.LEADER_SHOUT, (err, msg) => {
            if (err) {
                hall.receiveCommunicationProblemReport(err);
                return;
            }
            let leaderShout;
            try {
                leaderShout = JSON.parse(msg.data);
            }
            catch (err) {
                hall.receiveCommunicationProblemReport(err);
                return;
            }
            viking.receiveLeaderShout(leaderShout);
        });
        hall.communicationMedium.receiveExclusively(HallMessages.CHALLENGE, (err, msg) => {
            if (err) {
                hall.receiveCommunicationProblemReport(err);
                return;
            }
            let challenge;
            try {
                challenge = JSON.parse(msg.data);
            }
            catch (err) {
                hall.receiveCommunicationProblemReport(err);
                return;
            }
            viking.receiveChallenge(challenge);
        });
        hall.communicationMedium.receive(HallMessages.CHALLENGE_RUMOUR, (err, msg) => {
            if (err) {
                hall.receiveCommunicationProblemReport(err);
                return;
            }
            let challenge;
            try {
                challenge = JSON.parse(msg.data);
            }
            catch (err) {
                hall.receiveCommunicationProblemReport(err);
                return;
            }
            viking.receiveChallengeRumour(challenge);
        });
    }
    sendChallenge(challenge) {
        const hall = this;
        try {
            hall.communicationMedium.send(HallMessages.CHALLENGE, JSON.stringify(challenge));
            hall.communicationMedium.send(HallMessages.CHALLENGE_RUMOUR, JSON.stringify(challenge));
        }
        catch (err) {
            hall.receiveCommunicationProblemReport(err);
        }
    }
    sendLeaderShout(leaderShout) {
        const hall = this;
        try {
            hall.communicationMedium.send(HallMessages.LEADER_SHOUT, JSON.stringify(leaderShout));
        }
        catch (err) {
            hall.receiveCommunicationProblemReport(err);
        }
    }
    receiveCommunicationProblemReport(err) {
        const hall = this;
        logger.error("Communication Problem reported:");
        logger.error(err);
    }
}
exports.Hall = Hall;