@chix/loader-remote
Version:
Remote NodeDefinition Loader for Chiχ
245 lines • 12.1 kB
JavaScript
"use strict";
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 __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 __values = (this && this.__values) || function(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m) return m.call(o);
if (o && typeof o.length === "number") return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
Object.defineProperty(exports, "__esModule", { value: true });
var loader_1 = require("@chix/loader");
var _debug = require("debug");
var request = require("superagent");
var debug = _debug('chix-loader:remote');
var RemoteLoader = (function (_super) {
__extends(RemoteLoader, _super);
function RemoteLoader() {
var _this = _super !== null && _super.apply(this, arguments) || this;
_this.defaultProvider = 'https://api.chix.io/v1/nodes/{ns}/{name}';
_this.workload = [];
_this.headers = {
Authorization: '',
};
return _this;
}
RemoteLoader.prototype.setAuthorizationHeader = function (value) {
this.headers.Authorization = value;
};
RemoteLoader.prototype.load = function (flows, update) {
if (update === void 0) { update = false; }
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
if (!Array.isArray(flows)) {
return [2, this._loadRemote([flows], update)];
}
else {
return [2, this._loadRemote(flows, update)];
}
return [2];
});
});
};
RemoteLoader.prototype.preload = function (config) {
return __awaiter(this, void 0, void 0, function () {
var res, nodeDef;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!config.provider) {
throw Error('missing provider value');
}
if (!config.collection) {
throw Error('missing collection value');
}
debug('Preload collection %s', config.collection);
return [4, this.makeRequest(config.collection)];
case 1:
res = _a.sent();
if (res.clientError) {
throw res.clientError;
}
nodeDef = res.body;
this.addNodeDefinitions(config.provider, nodeDef);
return [2, {
provider: config.provider,
nodeDefinitions: this.getNodeDefinitions(config.provider),
}];
}
});
});
};
RemoteLoader.prototype._loadRemote = function (flows, update) {
if (update === void 0) { update = false; }
return __awaiter(this, void 0, void 0, function () {
var workload, loadedNodes, flowDefinitions, loadedNodes_1, loadedNodes_1_1, loadedNode, nodeDefinition, providerLocation, flow;
var e_1, _a;
var _this = this;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
workload = this.getWorkLoad(flows, this.defaultProvider, update);
if (!workload.length) return [3, 2];
return [4, Promise.all(workload.map(function (location) { return _this.loadNode(location); }))];
case 1:
loadedNodes = _b.sent();
flowDefinitions = [];
try {
for (loadedNodes_1 = __values(loadedNodes), loadedNodes_1_1 = loadedNodes_1.next(); !loadedNodes_1_1.done; loadedNodes_1_1 = loadedNodes_1.next()) {
loadedNode = loadedNodes_1_1.value;
nodeDefinition = loadedNode.nodeDef, providerLocation = loadedNode.providerLocation;
this.saveNodeDefinition(providerLocation, nodeDefinition);
this.addNodeDefinition(providerLocation, nodeDefinition);
if (nodeDefinition.dependencies) {
this.dependencyManager.parseDependencies(nodeDefinition);
}
if (nodeDefinition.type === 'flow') {
flow = nodeDefinition;
if (!flow.ns) {
throw Error("No Namespace found for Flow " + flow.title);
}
if (!flow.name) {
throw Error("No Name found for Flow " + flow.title);
}
flowDefinitions.push(flow);
}
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (loadedNodes_1_1 && !loadedNodes_1_1.done && (_a = loadedNodes_1.return)) _a.call(loadedNodes_1);
}
finally { if (e_1) throw e_1.error; }
}
return [2, this._loadRemote(flowDefinitions, update)];
case 2: return [2, {
nodeDefinitions: this.getNodeDefinitions(),
dependencies: this.getDependencies(),
}];
}
});
});
};
RemoteLoader.prototype.saveNodeDefinition = function (_providerLocation, _nodeDefinition) {
};
RemoteLoader.prototype.loadNode = function (location) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
if (location.hasOwnProperty('url')) {
return [2, this.loadUrl(location)];
}
else if (location.hasOwnProperty('path')) {
return [2, this.loadFile(location)];
}
throw Error('Do not know how to load node');
});
});
};
RemoteLoader.prototype.loadFile = function (_location) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
throw Error('Path loading not supported.');
});
});
};
RemoteLoader.prototype.loadUrl = function (location) {
return __awaiter(this, void 0, void 0, function () {
var providerLocation, url, res, error_1, data;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
providerLocation = location.providerLocation, url = location.url;
this.emit('loadUrl', { url: url });
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4, this.makeRequest(url)];
case 2:
res = _a.sent();
return [3, 4];
case 3:
error_1 = _a.sent();
throw Error("Failed to load URL: " + url + " [" + error_1.message + "]");
case 4:
if (res.clientError) {
throw res.clientError;
}
if (/^\s*{/.test(res.text)) {
data = JSON.parse(res.text);
return [2, {
providerLocation: providerLocation,
nodeDef: data,
}];
}
throw Error("URL did not return a valid JSON Document: " + url);
}
});
});
};
RemoteLoader.prototype.makeRequest = function (url) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
if (this.headers.Authorization) {
return [2, request.get(url).set('Authorization', this.headers.Authorization)];
}
return [2, request.get(url)];
});
});
};
return RemoteLoader;
}(loader_1.Loader));
exports.RemoteLoader = RemoteLoader;
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