@addapptables/microservice
Version:
addapptables microservice
73 lines • 3.33 kB
JavaScript
;
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.ExplorerService = void 0;
const common_1 = require("@nestjs/common");
const modules_container_1 = require("@nestjs/core/injector/modules-container");
const config_1 = require("../config");
let ExplorerService = class ExplorerService {
constructor(modulesContainer) {
this.modulesContainer = modulesContainer;
}
getCommandHandlers() {
const modules = [...this.modulesContainer.values()];
const commands = this.flatMap(modules, instance => this.filterProvider(instance, config_1.COMMAND_HANDLER_METADATA));
return commands;
}
getEventHandlers() {
const modules = [...this.modulesContainer.values()];
const events = this.flatMap(modules, instance => this.filterProvider(instance, config_1.EVENT_HANDLER_METADATA));
return events;
}
getQueryHandlers() {
const modules = [...this.modulesContainer.values()];
const queries = this.flatMap(modules, instance => this.filterProvider(instance, config_1.QUERY_HANDLER_METADATA));
return queries;
}
getCommands() {
return this.getCommandHandlers()
.map(handler => Reflect.getMetadata(config_1.COMMAND_HANDLER_METADATA, handler));
}
getEvents() {
return this.getEventHandlers()
.map(handler => Reflect.getMetadata(config_1.EVENT_HANDLER_METADATA, handler));
}
getQueries() {
return this.getQueryHandlers()
.map(handler => Reflect.getMetadata(config_1.QUERY_HANDLER_METADATA, handler));
}
flatMap(modules, callback) {
const items = modules
.map(module => [...module.providers.values()].map(callback))
.reduce((a, b) => a.concat(b), []);
return items.filter(element => !!element);
}
filterProvider(wrapper, metadataKey) {
const { instance } = wrapper;
if (!instance) {
return undefined;
}
return this.extractMetadata(instance, metadataKey);
}
extractMetadata(instance, metadataKey) {
if (!instance.constructor) {
return undefined;
}
const metadata = Reflect.getMetadata(metadataKey, instance.constructor);
return metadata ? instance.constructor : undefined;
}
};
ExplorerService = __decorate([
(0, common_1.Injectable)(),
__metadata("design:paramtypes", [modules_container_1.ModulesContainer])
], ExplorerService);
exports.ExplorerService = ExplorerService;
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