applicationinsights
Version:
Microsoft Application Insights module for Node.js
267 lines • 13.3 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 (_) 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 };
}
};
var __spreadArrays = (this && this.__spreadArrays) || function () {
for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;
for (var r = Array(s), k = 0, i = 0; i < il; i++)
for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)
r[k] = a[j];
return r;
};
var fs = require("fs");
var os = require("os");
var path = require("path");
var FileSystemHelper = require("./FileSystemHelper");
var InternalAzureLogger = /** @class */ (function () {
function InternalAzureLogger() {
var _this = this;
this.TAG = "Logger";
this._cleanupTimeOut = 60 * 30 * 1000; // 30 minutes;
this._tempDir = "";
this._logFileName = "";
this._fileFullPath = "";
this._backUpNameFormat = "";
this._logToFile = false;
this._logToConsole = true;
var logDestination = process.env.APPLICATIONINSIGHTS_LOG_DESTINATION; // destination can be one of file, console or file+console
if (logDestination == "file+console") {
this._logToFile = true;
}
if (logDestination == "file") {
this._logToFile = true;
this._logToConsole = false;
}
this.maxSizeBytes = 50000;
this.maxHistory = 1;
this._logFileName = "applicationinsights.log";
// If custom path not provided use temp folder, /tmp for *nix and USERDIR/AppData/Local/Temp for Windows
var logFilePath = process.env.APPLICATIONINSIGHTS_LOGDIR;
if (!logFilePath) {
this._tempDir = path.join(os.tmpdir(), "appInsights-node");
}
else {
if (path.isAbsolute(logFilePath)) {
this._tempDir = logFilePath;
}
else {
this._tempDir = path.join(process.cwd(), logFilePath);
}
}
this._fileFullPath = path.join(this._tempDir, this._logFileName);
this._backUpNameFormat = "." + this._logFileName; // {currentime}.applicationinsights.log
if (this._logToFile) {
if (!InternalAzureLogger._fileCleanupTimer) {
InternalAzureLogger._fileCleanupTimer = setInterval(function () { _this._fileCleanupTask(); }, this._cleanupTimeOut);
InternalAzureLogger._fileCleanupTimer.unref();
}
}
}
InternalAzureLogger.prototype.info = function (message) {
var optionalParams = [];
for (var _i = 1; _i < arguments.length; _i++) {
optionalParams[_i - 1] = arguments[_i];
}
var args = message ? __spreadArrays([message], optionalParams) : optionalParams;
if (this._logToFile) {
this._storeToDisk(args);
}
if (this._logToConsole) {
console.info.apply(console, args);
}
};
InternalAzureLogger.prototype.warning = function (message) {
var optionalParams = [];
for (var _i = 1; _i < arguments.length; _i++) {
optionalParams[_i - 1] = arguments[_i];
}
var args = message ? __spreadArrays([message], optionalParams) : optionalParams;
if (this._logToFile) {
this._storeToDisk(args);
}
if (this._logToConsole) {
console.warn.apply(console, args);
}
};
InternalAzureLogger.getInstance = function () {
if (!InternalAzureLogger._instance) {
InternalAzureLogger._instance = new InternalAzureLogger();
}
return InternalAzureLogger._instance;
};
InternalAzureLogger.prototype._storeToDisk = function (args) {
return __awaiter(this, void 0, void 0, function () {
var data, err_1, appendError_1, err_2, size, err_3;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
data = args + "\r\n";
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4 /*yield*/, FileSystemHelper.confirmDirExists(this._tempDir)];
case 2:
_a.sent();
return [3 /*break*/, 4];
case 3:
err_1 = _a.sent();
console.log(this.TAG, "Failed to create directory for log file: " + (err_1 && err_1.message));
return [2 /*return*/];
case 4:
_a.trys.push([4, 6, , 11]);
return [4 /*yield*/, FileSystemHelper.accessAsync(this._fileFullPath, fs.constants.F_OK)];
case 5:
_a.sent();
return [3 /*break*/, 11];
case 6:
appendError_1 = _a.sent();
_a.label = 7;
case 7:
_a.trys.push([7, 9, , 10]);
return [4 /*yield*/, FileSystemHelper.appendFileAsync(this._fileFullPath, data)];
case 8:
_a.sent();
return [2 /*return*/];
case 9:
err_2 = _a.sent();
console.log(this.TAG, "Failed to put log into file: " + (appendError_1 && appendError_1.message));
return [2 /*return*/];
case 10: return [3 /*break*/, 11];
case 11:
_a.trys.push([11, 17, , 18]);
return [4 /*yield*/, FileSystemHelper.getShallowFileSize(this._fileFullPath)];
case 12:
size = _a.sent();
if (!(size > this.maxSizeBytes)) return [3 /*break*/, 14];
return [4 /*yield*/, this._createBackupFile(data)];
case 13:
_a.sent();
return [3 /*break*/, 16];
case 14: return [4 /*yield*/, FileSystemHelper.appendFileAsync(this._fileFullPath, data)];
case 15:
_a.sent();
_a.label = 16;
case 16: return [3 /*break*/, 18];
case 17:
err_3 = _a.sent();
console.log(this.TAG, "Failed to create backup file: " + (err_3 && err_3.message));
return [3 /*break*/, 18];
case 18: return [2 /*return*/];
}
});
});
};
InternalAzureLogger.prototype._createBackupFile = function (data) {
return __awaiter(this, void 0, void 0, function () {
var buffer, backupPath, err_4;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 3, 4, 5]);
return [4 /*yield*/, FileSystemHelper.readFileAsync(this._fileFullPath)];
case 1:
buffer = _a.sent();
backupPath = path.join(this._tempDir, new Date().getTime() + "." + this._logFileName);
return [4 /*yield*/, FileSystemHelper.writeFileAsync(backupPath, buffer)];
case 2:
_a.sent();
return [3 /*break*/, 5];
case 3:
err_4 = _a.sent();
console.log("Failed to generate backup log file", err_4);
return [3 /*break*/, 5];
case 4:
// Store logs
FileSystemHelper.writeFileAsync(this._fileFullPath, data);
return [7 /*endfinally*/];
case 5: return [2 /*return*/];
}
});
});
};
InternalAzureLogger.prototype._fileCleanupTask = function () {
return __awaiter(this, void 0, void 0, function () {
var files, totalFiles, i, pathToDelete, err_5;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 6, , 7]);
return [4 /*yield*/, FileSystemHelper.readdirAsync(this._tempDir)];
case 1:
files = _a.sent();
// Filter only backup files
files = files.filter(function (f) { return path.basename(f).indexOf(_this._backUpNameFormat) > -1; });
// Sort by creation date
files.sort(function (a, b) {
// Check expiration
var aCreationDate = new Date(parseInt(a.split(_this._backUpNameFormat)[0]));
var bCreationDate = new Date(parseInt(b.split(_this._backUpNameFormat)[0]));
if (aCreationDate < bCreationDate) {
return -1;
}
if (aCreationDate >= bCreationDate) {
return 1;
}
});
totalFiles = files.length;
i = 0;
_a.label = 2;
case 2:
if (!(i < totalFiles - this.maxHistory)) return [3 /*break*/, 5];
pathToDelete = path.join(this._tempDir, files[i]);
return [4 /*yield*/, FileSystemHelper.unlinkAsync(pathToDelete)];
case 3:
_a.sent();
_a.label = 4;
case 4:
i++;
return [3 /*break*/, 2];
case 5: return [3 /*break*/, 7];
case 6:
err_5 = _a.sent();
console.log(this.TAG, "Failed to cleanup log files: " + (err_5 && err_5.message));
return [3 /*break*/, 7];
case 7: return [2 /*return*/];
}
});
});
};
InternalAzureLogger._fileCleanupTimer = null;
return InternalAzureLogger;
}());
module.exports = InternalAzureLogger;
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