@fabrix/spool-broadcast
Version:
Spool: broadcast for Fabrix to implement CQRS and Event Sourcing
240 lines • 10.2 kB
JavaScript
"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
result["default"] = mod;
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
const extension_1 = require("@fabrix/fabrix/dist/common/spools/extension");
const broadcaster_1 = require("./broadcaster");
const validator_1 = require("./validator");
const config = __importStar(require("./config/index"));
const api = __importStar(require("./api/index"));
const pkg = __importStar(require("../package.json"));
const errors_1 = require("./errors");
const errors_2 = require("@fabrix/spool-errors/dist/errors");
class BroadcastSpool extends extension_1.ExtensionSpool {
constructor(app) {
super(app, {
config: config,
pkg: pkg,
api: api
});
this.channelMap = new Map();
this.pipelineMap = new Map();
this.hookMap = new Map();
this.processorMap = new Map();
this.projectorMap = new Map();
this.extensions = {
broadcaster: {
get: () => {
return this.broadcaster;
},
set: (newInstances) => {
throw new Error('broadcaster can not be set through FabrixApp, check spool-broadcaster instead');
},
enumerable: true,
configurable: true
},
broadcastSeries: {
get: () => {
return this.mapSeries;
},
set: (newInstances) => {
throw new Error('broadcastSeries can not be set through FabrixApp, check spool-broadcast instead');
},
enumerable: true,
configurable: true
},
broadcastTransaction: {
get: () => {
return this.transaction;
},
set: (newInstances) => {
throw new Error('broadcastTransaction can not be set through FabrixApp, check spool-broadcast instead');
},
enumerable: true,
configurable: true
},
};
}
mapSeries(...args) {
if (this
&& this.spools
&& this.spools.sequelize) {
return this.spools.broadcast.Sequelize().Promise.mapSeries(...args);
}
else {
throw new Error('Spool Sequelize is not yet loaded');
}
}
Sequelize() {
const app = this.app || this;
if (!app.spools.sequelize) {
throw new Error('Spool-sequelize is not loaded!');
}
return app.spools.sequelize._datastore;
}
action(func, req, body, options = {}) {
if (typeof func !== 'function') {
throw new Error(`action ${func} is not a function`);
}
return func(req, body, options)
.catch(err => {
if (!err.code) {
const error = new errors_2.GenericError('E_NOT_FOUND', 'Not found', `${func.constructor.name} Action Error`);
}
else {
throw new err;
}
});
}
transaction(func, req, body, options = {}) {
const app = this.app || this;
if (typeof func !== 'function') {
throw new Error(`transaction ${func} is not a function`);
}
if (options.transaction === false || this.app.config.get('broadcast.auto_transaction') === false) {
return func(req, body, options);
}
else {
if (!app.models.BroadcastEvent.sequelize) {
throw new Error('Sequelize is not available on BroadcastEvent!');
}
if (options.parent && options.parent.transaction) {
return app.models.BroadcastEvent.sequelize.transaction({ transaction: options.parent.transaction }, t => {
options.transaction = t;
app.log.debug(`Broadcast adding transaction ${t.id} to parent ${options.parent.transaction.id}`);
return func(req, body, options);
});
}
else if (options.transaciton) {
app.log.debug(`Broadcast on same transaction ${options.transaction.id}`);
return func(req, body, options);
}
else {
return app.models.BroadcastEvent.sequelize.transaction({
isolationLevel: this.app.spools.sequelize._datastore.Transaction.ISOLATION_LEVELS.READ_UNCOMMITTED,
deferrable: this.app.spools.sequelize._datastore.Deferrable.SET_DEFERRED
}, t => {
options.transaction = t;
app.log.debug(`Broadcast new transaction ${options.transaction.id}`);
return func(req, body, options);
});
}
}
}
models(name) {
if (!name || !this.app.models[name]) {
throw new Error(`${name} is not a valid model`);
}
return this.app.models[name];
}
entries(name) {
if (!name || !this.app.entries[name]) {
throw new Error(`${name} is not a valid entry`);
}
return this.app.entries[name];
}
validate() {
return __awaiter(this, void 0, void 0, function* () {
const requiredSpools = [
'sequelize',
'realtime',
'errors'
];
const oneOfSpools = [
'express',
'polka',
'hapi'
];
const spools = Object.keys(this.app.spools);
if (!spools.some(v => requiredSpools.indexOf(v) === -1)) {
return Promise.reject(new errors_1.ConfigError('E_PRECONDITION_FAILED', `spool-broadcast requires spools: ${requiredSpools.join(', ')}!`));
}
if (!spools.some(v => oneOfSpools.indexOf(v) === -1)) {
return Promise.reject(new errors_1.ConfigError('E_PRECONDITION_FAILED', `spool-broadcast requires at least one of spools: ${oneOfSpools.join(', ')}!`));
}
if (!this.app.config.get('broadcast')) {
return Promise.reject(new errors_1.ConfigError('E_PRECONDITION_FAILED', 'No configuration found at config.broadcast!'));
}
if (!this.app.config.get('realtime')) {
return Promise.reject(new errors_1.ConfigError('E_PRECONDITION_FAILED', 'No configuration found at config.realtime!'));
}
return Promise.all([
validator_1.Validator.validateBroadcastConfig(this.app.config.get('broadcast')),
validator_1.Validator.validateRealtimeConfig(this.app.config.get('realtime'))
])
.catch(err => {
return Promise.reject(err);
});
});
}
configure() {
return __awaiter(this, void 0, void 0, function* () {
yield Promise.all([
broadcaster_1.broadcaster.configure(this.app),
broadcaster_1.broadcaster.discoverChannels(this.app),
broadcaster_1.broadcaster.discoverPipelines(this.app),
broadcaster_1.broadcaster.discoverHooks(this.app),
broadcaster_1.broadcaster.discoverProjectors(this.app),
broadcaster_1.broadcaster.discoverProcessors(this.app),
broadcaster_1.broadcaster.discoverDispatchers(this.app),
broadcaster_1.broadcaster.buildBroadcaster(this.app),
broadcaster_1.broadcaster.addModelHooks(this.app),
broadcaster_1.broadcaster.copyDefaults(this.app)
])
.catch(err => {
return Promise.reject(err);
});
});
}
initialize() {
return __awaiter(this, void 0, void 0, function* () {
yield Promise.all([
broadcaster_1.broadcaster.addBroadcasts(this.app),
broadcaster_1.broadcaster.makeChannelMap(this.app),
broadcaster_1.broadcaster.makePipelineMap(this.app),
broadcaster_1.broadcaster.makeHookMap(this.app),
broadcaster_1.broadcaster.makeProjectorMap(this.app),
broadcaster_1.broadcaster.makeProcessorMap(this.app),
])
.then((maps) => {
return broadcaster_1.broadcaster.makeBroadcastChannelResources(this.app);
})
.catch(err => {
return Promise.reject(err);
});
});
}
unload() {
return __awaiter(this, void 0, void 0, function* () {
return broadcaster_1.broadcaster.shutdownBroadcaster(this.app)
.catch(err => {
return Promise.reject(err);
});
});
}
sanity() {
return __awaiter(this, void 0, void 0, function* () {
this.app.log.silly('BroadcastChannel Map', this.channelMap);
this.app.log.silly('Pipeline Map', this.pipelineMap);
this.app.log.silly('Hook Map', this.hookMap);
this.app.log.silly('Projector Map', this.projectorMap);
this.app.log.silly('Processor Map', this.processorMap);
return Promise.resolve();
});
}
}
exports.BroadcastSpool = BroadcastSpool;
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