@voicenter-team/mysql-dynamic-cluster
Version:
Galera cluster with implementation of dynamic choose mysql server for queries, caching, hashing it and metrics
56 lines • 2.42 kB
JavaScript
;
/**
* Created by Bohdan on Apr, 2022
*/
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const Logger_1 = __importDefault(require("./Logger"));
class ServiceNames {
constructor(cluster, options) {
this._serviceIds = new Map();
this._cluster = cluster;
this._database = options.database;
this._table = options.table;
}
getID(serviceName) {
return __awaiter(this, void 0, void 0, function* () {
if (this._serviceIds.has(serviceName))
return this._serviceIds.get(serviceName);
return yield this._receiveIDbyName(serviceName);
});
}
_receiveIDbyName(serviceName) {
return __awaiter(this, void 0, void 0, function* () {
try {
const res = yield this._cluster.query(`SELECT ServiceID AS Result FROM ${this._table} WHERE ServiceName LIKE '${serviceName}';`, null, {
maxRetry: 1,
database: this._database,
redis: false
});
if (res.length <= 0) {
Logger_1.default.error(`Didn't find service id by name ${serviceName}`);
return undefined;
}
this._serviceIds.set(serviceName, res[0].Result);
return this._serviceIds.get(serviceName);
}
catch (e) {
Logger_1.default.error(e);
return undefined;
}
});
}
}
exports.default = ServiceNames;
//# sourceMappingURL=ServiceNames.js.map