@cloudbase/js-sdk
Version:
cloudbase javascript sdk
216 lines (215 loc) • 9.53 kB
JavaScript
"use strict";
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 __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.runTransaction = exports.startTransaction = exports.Transaction = void 0;
var index_1 = require("../index");
var collection_1 = require("./collection");
var code_1 = require("../const/code");
var START = 'database.startTransaction';
var COMMIT = 'database.commitTransaction';
var ABORT = 'database.abortTransaction';
var Transaction = (function () {
function Transaction(db) {
this._db = db;
this._request = index_1.Db.createRequest(this._db.config);
this.aborted = false;
this.commited = false;
this.inited = false;
}
Transaction.prototype.init = function () {
return __awaiter(this, void 0, void 0, function () {
var res;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4, this._request.send(START)];
case 1:
res = _a.sent();
if (res.code) {
throw res;
}
this.inited = true;
this._id = res.transactionId;
return [2];
}
});
});
};
Transaction.prototype.collection = function (collName) {
if (!collName) {
throw new Error('Collection name is required');
}
return new collection_1.CollectionReference(this, collName);
};
Transaction.prototype.getTransactionId = function () {
return this._id;
};
Transaction.prototype.getRequestMethod = function () {
return this._request;
};
Transaction.prototype.commit = function () {
return __awaiter(this, void 0, void 0, function () {
var param, res;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
param = {
transactionId: this._id
};
return [4, this._request.send(COMMIT, param)];
case 1:
res = _a.sent();
if (res.code)
throw res;
this.commited = true;
return [2, res];
}
});
});
};
Transaction.prototype.rollback = function (customRollbackRes) {
return __awaiter(this, void 0, void 0, function () {
var param, res;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
param = {
transactionId: this._id
};
return [4, this._request.send(ABORT, param)];
case 1:
res = _a.sent();
if (res.code)
throw res;
this.aborted = true;
this.abortReason = customRollbackRes;
return [2, res];
}
});
});
};
return Transaction;
}());
exports.Transaction = Transaction;
function startTransaction() {
return __awaiter(this, void 0, void 0, function () {
var transaction;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
transaction = new Transaction(this);
return [4, transaction.init()];
case 1:
_a.sent();
return [2, transaction];
}
});
});
}
exports.startTransaction = startTransaction;
function runTransaction(callback, times) {
if (times === void 0) { times = 3; }
return __awaiter(this, void 0, void 0, function () {
var transaction, callbackRes, error_1, throwWithRollback;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 4, , 10]);
transaction = new Transaction(this);
return [4, transaction.init()];
case 1:
_a.sent();
return [4, callback(transaction)];
case 2:
callbackRes = _a.sent();
if (transaction.aborted === true) {
throw transaction.abortReason;
}
return [4, transaction.commit()];
case 3:
_a.sent();
return [2, callbackRes];
case 4:
error_1 = _a.sent();
if (transaction.inited === false) {
throw error_1;
}
throwWithRollback = function (error) { return __awaiter(_this, void 0, void 0, function () {
var err_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!(!transaction.aborted && !transaction.commited)) return [3, 5];
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4, transaction.rollback()];
case 2:
_a.sent();
return [3, 4];
case 3:
err_1 = _a.sent();
return [3, 4];
case 4: throw error;
case 5:
if (transaction.aborted === true) {
throw transaction.abortReason;
}
throw error;
}
});
}); };
if (!(times <= 0)) return [3, 6];
return [4, throwWithRollback(error_1)];
case 5:
_a.sent();
_a.label = 6;
case 6:
if (!(error_1 && error_1.code === code_1.ERRORS.DATABASE_TRANSACTION_CONFLICT.code)) return [3, 8];
return [4, runTransaction.bind(this)(callback, --times)];
case 7: return [2, _a.sent()];
case 8: return [4, throwWithRollback(error_1)];
case 9:
_a.sent();
return [3, 10];
case 10: return [2];
}
});
});
}
exports.runTransaction = runTransaction;