container.ts
Version:
Modular application framework
255 lines • 10.8 kB
JavaScript
;
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
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;
};
Object.defineProperty(exports, "__esModule", { value: true });
var Debug = require("debug");
var lodash_1 = require("lodash");
var lodash_2 = require("lodash");
var error_1 = require("../lib/error");
var container_1 = require("./container");
var log_1 = require("./log");
var metric_1 = require("./metric");
/** Module error codes. */
var EModuleError;
(function (EModuleError) {
EModuleError["Dependency"] = "ModuleError.Dependency";
})(EModuleError = exports.EModuleError || (exports.EModuleError = {}));
/** Module error class. */
var ModuleError = /** @class */ (function (_super) {
__extends(ModuleError, _super);
function ModuleError(code, cause, context) {
return _super.call(this, { name: "ModuleError", value: __assign({ code: code }, context) }, cause) || this;
}
return ModuleError;
}(error_1.ErrorChain));
exports.ModuleError = ModuleError;
/** Container module log class. */
var ModuleLog = /** @class */ (function (_super) {
__extends(ModuleLog, _super);
function ModuleLog(container, namespace) {
var _this = _super.call(this) || this;
_this.container = container;
_this.namespace = namespace;
return _this;
}
/**
* Sends log message to container bus for consumption by modules.
* Adds module namespace to metadata object by default.
*/
ModuleLog.prototype.log = function (level, message, metadata) {
var args = [];
for (var _i = 3; _i < arguments.length; _i++) {
args[_i - 3] = arguments[_i];
}
metadata.moduleNamespace = this.namespace;
this.container.sendLog(level, message, metadata, args);
};
return ModuleLog;
}(log_1.Log));
exports.ModuleLog = ModuleLog;
/** Container module metric class. */
var ModuleMetric = /** @class */ (function (_super) {
__extends(ModuleMetric, _super);
function ModuleMetric(container, namespace) {
var _this = _super.call(this) || this;
_this.container = container;
_this.namespace = namespace;
return _this;
}
/**
* Sends metric message to container bus for consumption by modules.
* Adds module namespace to tags object by default.
*/
ModuleMetric.prototype.metric = function (type, name, value, tags) {
var args = [];
for (var _i = 4; _i < arguments.length; _i++) {
args[_i - 4] = arguments[_i];
}
tags.moduleNamespace = this.namespace;
this.container.sendMetric(type, name, value, tags, args);
};
return ModuleMetric;
}(metric_1.Metric));
exports.ModuleMetric = ModuleMetric;
/** Base class for container class modules with dependency injection. */
var Module = /** @class */ (function () {
function Module(options) {
var _this = this;
// Resolve container instance and construct instance properties.
this.moduleName = options.moduleName;
this.container = options.opts[container_1.EContainerScope.Container];
this.log = new ModuleLog(this.container, this.namespace);
this.metric = new ModuleMetric(this.container, this.namespace);
this.debug = Debug(this.namespace);
// Inject dependency values into instance.
// Error is thrown by awilix if resolution failed.
try {
var dependencies_1 = this.moduleDependencies();
lodash_1.keys(dependencies_1).map(function (key) {
var target = dependencies_1[key];
_this[key] = options.opts[target.moduleName];
});
}
catch (error) {
throw new ModuleError(EModuleError.Dependency, error);
}
}
Object.defineProperty(Module.prototype, "environment", {
/** Module container environment reference. */
get: function () {
return this.container.environment;
},
enumerable: true,
configurable: true
});
Object.defineProperty(Module.prototype, "namespace", {
/** Module container and module names. */
get: function () {
return this.container.name + "." + this.moduleName;
},
enumerable: true,
configurable: true
});
/** Module dependencies hook. */
Module.prototype.moduleDependencies = function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
return lodash_1.assign.apply(void 0, __spreadArrays([{}], args));
};
/** Module operational state hook. */
Module.prototype.moduleUp = function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
return __awaiter(this, void 0, void 0, function () {
var _a, _b, hook;
return __generator(this, function (_c) {
switch (_c.label) {
case 0:
_a = 0, _b = lodash_2.reverse(args.slice());
_c.label = 1;
case 1:
if (!(_a < _b.length)) return [3 /*break*/, 4];
hook = _b[_a];
return [4 /*yield*/, hook()];
case 2:
_c.sent();
_c.label = 3;
case 3:
_a++;
return [3 /*break*/, 1];
case 4: return [2 /*return*/];
}
});
});
};
/** Module non-operational state hook. */
Module.prototype.moduleDown = function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
return __awaiter(this, void 0, void 0, function () {
var _a, args_1, hook;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
_a = 0, args_1 = args;
_b.label = 1;
case 1:
if (!(_a < args_1.length)) return [3 /*break*/, 4];
hook = args_1[_a];
return [4 /*yield*/, hook()];
case 2:
_b.sent();
_b.label = 3;
case 3:
_a++;
return [3 /*break*/, 1];
case 4: return [2 /*return*/];
}
});
});
};
/** Module destruction hook. */
Module.prototype.moduleDestroy = function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
args.map(function (hook) { return hook(); });
};
/** Default module name. */
Module.moduleName = "Module";
return Module;
}());
exports.Module = Module;
//# sourceMappingURL=module.js.map