reshuffle
Version:
Reshuffle is a fast, unopinionated, minimalist integration framework
250 lines • 11.4 kB
JavaScript
"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
exports.__esModule = true;
exports.Reshuffle = void 0;
var express_1 = __importDefault(require("express"));
var nanoid_1 = require("nanoid");
var availableConnectors = __importStar(require("./connectors"));
var persistency_1 = require("./persistency");
var Logger_1 = require("./Logger");
var Reshuffle = /** @class */ (function () {
function Reshuffle(loggerOptions) {
this.availableConnectors = availableConnectors;
this.port = parseInt(process.env.PORT, 10) || 8000;
this.httpDelegates = {};
this.registry = { connectors: {}, handlers: {}, common: {} };
this.logger = Logger_1.createLogger(loggerOptions);
this.logger.info('Initializing Reshuffle');
}
Reshuffle.prototype.prepareWebServer = function () {
var _this = this;
var server = express_1["default"]();
server.route('*').all(function (req, res, next) { return __awaiter(_this, void 0, void 0, function () {
var handled;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
handled = false;
if (!this.httpDelegates[req.params[0]]) return [3 /*break*/, 2];
return [4 /*yield*/, this.httpDelegates[req.params[0]].handle(req, res, next)];
case 1:
handled = _a.sent();
_a.label = 2;
case 2:
if (!handled) {
res.end("No handler registered for " + req.url);
}
return [2 /*return*/];
}
});
}); });
return server;
};
Reshuffle.prototype.register = function (connector) {
connector.app = this;
this.registry.connectors[connector.id] = connector;
return this;
};
Reshuffle.prototype.unregister = function (connector) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, connector.stop()];
case 1:
_a.sent();
delete this.registry.connectors[connector.id];
return [2 /*return*/];
}
});
});
};
Reshuffle.prototype.getConnector = function (connectorId) {
return this.registry.connectors[connectorId];
};
Reshuffle.prototype.registerHTTPDelegate = function (path, delegate) {
this.httpDelegates[path] = delegate;
return this;
};
Reshuffle.prototype.unregisterHTTPDelegate = function (path) {
delete this.httpDelegates[path];
};
Reshuffle.prototype.when = function (eventConfiguration, handler) {
var handlerWrapper = typeof handler === 'object'
? handler
: {
handle: handler,
id: nanoid_1.nanoid()
};
if (this.registry.handlers[eventConfiguration.id]) {
this.registry.handlers[eventConfiguration.id].push(handlerWrapper);
}
else {
this.registry.handlers[eventConfiguration.id] = [handlerWrapper];
}
this.logger.info('Registering event ' + eventConfiguration.id);
return this;
};
Reshuffle.prototype.start = function (port, callback) {
var _this = this;
this.port = port || this.port;
// Start all connectors
Object.values(this.registry.connectors).forEach(function (connector) { return connector.start(_this); });
// Start the webserver if we have http delegates
if (Object.keys(this.httpDelegates).length > 0 && !this.registry.common.webserver) {
var express_2 = this.prepareWebServer();
this.registry.common.webserver = express_2.listen(this.port, function () {
_this.logger.info("Web server listening on port " + _this.port);
});
}
callback && callback();
};
Reshuffle.prototype.stopWebServer = function () {
var _a;
(_a = this.registry.common.webserver) === null || _a === void 0 ? void 0 : _a.close();
};
Reshuffle.prototype.restart = function (port) {
var _this = this;
this.start(port, function () {
_this.logger.info('Refreshing Reshuffle configuration');
});
};
Reshuffle.prototype.handleEvent = function (eventId, event) {
return __awaiter(this, void 0, void 0, function () {
var eventHandlers, _i, eventHandlers_1, handler;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (event == null) {
event = {};
}
eventHandlers = this.registry.handlers[eventId];
if (eventHandlers.length === 0) {
return [2 /*return*/, false];
}
event.getPersistentStore = this.getPersistentStore.bind(this);
event.getConnector = this.getConnector.bind(this);
_i = 0, eventHandlers_1 = eventHandlers;
_a.label = 1;
case 1:
if (!(_i < eventHandlers_1.length)) return [3 /*break*/, 4];
handler = eventHandlers_1[_i];
return [4 /*yield*/, this._p_handle(handler, event)];
case 2:
_a.sent();
_a.label = 3;
case 3:
_i++;
return [3 /*break*/, 1];
case 4: return [2 /*return*/, true];
}
});
});
};
Reshuffle.prototype._p_handle = function (handler, event) {
return __awaiter(this, void 0, void 0, function () {
var error_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
this.logger.defaultMeta = { handlerId: handler.id };
_a.label = 1;
case 1:
_a.trys.push([1, 3, 4, 5]);
return [4 /*yield*/, handler.handle(event)];
case 2:
_a.sent();
return [3 /*break*/, 5];
case 3:
error_1 = _a.sent();
this.logger.error(error_1.stack);
return [3 /*break*/, 5];
case 4:
this.logger.defaultMeta = {};
return [7 /*endfinally*/];
case 5: return [2 /*return*/];
}
});
});
};
Reshuffle.prototype.setPersistentStore = function (adapter) {
this.registry.common.persistentStore = adapter;
return adapter;
};
Reshuffle.prototype.getPersistentStore = function () {
return this.registry.common.persistentStore || this.setPersistentStore(new persistency_1.MemoryStoreAdapter());
};
Reshuffle.prototype.clearInterval = function (intervalID) {
global.clearInterval(intervalID);
};
Reshuffle.prototype.setInterval = function (callback, ms) {
var args = [];
for (var _i = 2; _i < arguments.length; _i++) {
args[_i - 2] = arguments[_i];
}
return global.setInterval(callback, ms, args);
};
Reshuffle.prototype.getLogger = function () {
return this.logger;
};
return Reshuffle;
}());
exports.Reshuffle = Reshuffle;
exports["default"] = Reshuffle;
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