bedal
Version:
Amazon Web Services AWS DynamoDB Batch operations
207 lines (206 loc) • 11.1 kB
JavaScript
;
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 (_) 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 });
var init_1 = require("./../services/init");
var tools_1 = require("./../services/tools");
var SyncModule = (function () {
function SyncModule() {
var _this = this;
this.sync = function (output, types, callback) { return __awaiter(_this, void 0, void 0, function () {
var chunks, i, length_1, transaction, e_1, e_2;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 9, , 10]);
return [4, this.tools.getChunks(output, init_1.InitModule.getInstance().config.Key)];
case 1:
chunks = _a.sent();
i = chunks.length;
length_1 = chunks.length;
_a.label = 2;
case 2:
if (!i--) return [3, 8];
if (!(chunks[i].length > 0)) return [3, 7];
_a.label = 3;
case 3:
_a.trys.push([3, 6, , 7]);
return [4, this.transactionFactory(chunks[i], types)];
case 4:
transaction = _a.sent();
return [4, this.runTransaction(transaction, callback)];
case 5:
_a.sent();
callback({
progress: ((length_1 - i) * 100) / length_1
});
chunks.splice(i, 1);
return [3, 7];
case 6:
e_1 = _a.sent();
callback({ error: e_1 });
return [3, 7];
case 7: return [3, 2];
case 8: return [3, 10];
case 9:
e_2 = _a.sent();
callback({ error: e_2 });
return [3, 10];
case 10: return [2];
}
});
}); };
this.runTransaction = function (params, callback) {
var transactionRequest = init_1.InitModule.getInstance().dynamodb.transactWriteItems(params);
var cancellationReasons;
transactionRequest.on("extractError", function (response) {
try {
cancellationReasons = JSON.parse(response.httpResponse.body.toString())
.CancellationReasons;
}
catch (err) {
callback({
error: { message: "Error extracting cancellation error", err: err }
});
}
});
return new Promise(function (resolve, reject) {
transactionRequest.send(function (err, response) {
if (err) {
callback({
error: {
message: "Error performing transactWrite",
cancellationReasons: cancellationReasons,
err: err
}
});
return reject(err);
}
return resolve(response);
});
});
};
this.transactionFactory = function (output, types) { return __awaiter(_this, void 0, void 0, function () {
var tmp;
return __generator(this, function (_a) {
tmp = [];
output.forEach(function (item) {
var UpdateExpression = "SET ";
var ExpressionAttributeNames = {};
var ExpressionAttributeValues = {};
Object.keys(item).map(function (key) {
if (key.includes(init_1.InitModule.getInstance().config.Key.PrimaryKey.name) ||
key.includes(init_1.InitModule.getInstance().config.Key.SortKey.name)) {
}
else if (types[key]) {
UpdateExpression = UpdateExpression + ("#" + key + " = :" + key + ", ");
ExpressionAttributeNames["#" + key] = key;
var ExpressionAttributeValuesAttributeType = {};
ExpressionAttributeValuesAttributeType[types[key]] = item[key] + "";
ExpressionAttributeValues[":" + key] = ExpressionAttributeValuesAttributeType;
}
else if (key.includes("date")) {
UpdateExpression = UpdateExpression + ("#" + key + " = :" + key + ", ");
ExpressionAttributeNames["#" + key] = key;
ExpressionAttributeValues[":" + key] = {
N: new Date(item[key]).getTime() + ""
};
}
else if (typeof item[key] == "string") {
UpdateExpression = UpdateExpression + ("#" + key + " = :" + key + ", ");
ExpressionAttributeNames["#" + key] = key;
ExpressionAttributeValues[":" + key] = {
S: item[key] + ""
};
}
else if (typeof item[key] == "number") {
UpdateExpression = UpdateExpression + ("#" + key + " = :" + key + ", ");
ExpressionAttributeNames["#" + key] = key;
ExpressionAttributeValues[":" + key] = {
N: item[key] + ""
};
}
else if (typeof item[key] == "object" && Array.isArray(item[key])) {
var tmpArray_1 = [];
item[key].map(function (Arel) {
tmpArray_1.push({
S: Arel + ""
});
});
UpdateExpression = UpdateExpression + ("#" + key + " = :" + key + ", ");
ExpressionAttributeNames["#" + key] = key;
ExpressionAttributeValues[":" + key] = {
L: tmpArray_1
};
}
else {
UpdateExpression = UpdateExpression + ("#" + key + " = :" + key + ", ");
ExpressionAttributeNames["#" + key] = key;
ExpressionAttributeValues[":" + key] = {
S: item[key] + ""
};
}
});
UpdateExpression = UpdateExpression.substring(0, UpdateExpression.length - 2);
var key = {};
var typedPrimarykey = {};
var typedSortKey = {};
typedPrimarykey[init_1.InitModule.getInstance().config.Key.PrimaryKey.type] =
item[init_1.InitModule.getInstance().config.Key.PrimaryKey.name];
typedSortKey[init_1.InitModule.getInstance().config.Key.SortKey.type] =
item[init_1.InitModule.getInstance().config.Key.SortKey.name];
key[init_1.InitModule.getInstance().config.Key.PrimaryKey.name] = typedPrimarykey;
key[init_1.InitModule.getInstance().config.Key.SortKey.name] = typedSortKey;
var itemUpdate = {
Update: {
Key: key,
TableName: init_1.InitModule.getInstance().config.Table,
UpdateExpression: UpdateExpression,
ExpressionAttributeNames: ExpressionAttributeNames,
ExpressionAttributeValues: ExpressionAttributeValues
}
};
tmp.push(itemUpdate);
});
return [2, { TransactItems: tmp }];
});
}); };
this.tools = new tools_1.ToolsModule();
}
return SyncModule;
}());
exports.SyncModule = SyncModule;