@devgrid/netron-nest/dist/netron.service.js

NestJS integration module for @devgrid/netron, providing seamless distributed system capabilities with decorators, dependency injection, and automatic service discovery in NestJS applications.

"use strict";
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);
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
    return function (target, key) { decorator(target, key, paramIndex); }
};
var NetronService_1;
Object.defineProperty(exports, "__esModule", { value: true });
exports.NetronService = void 0;
const netron_1 = require("@devgrid/netron");
const core_1 = require("@nestjs/core");
const common_1 = require("@nestjs/common");
const constants_1 = require("./constants");
const service_decorator_1 = require("./decorators/service.decorator");
let NetronService = NetronService_1 = class NetronService {
    constructor(options, discoveryService, reflector) {
        this.options = options;
        this.discoveryService = discoveryService;
        this.reflector = reflector;
        this.logger = new common_1.Logger(NetronService_1.name);
        this.netron = new netron_1.Netron(this.options);
    }
    async onApplicationBootstrap() {
        await this.netron.start();
        this.registerDiscoveredServices();
    }
    async onApplicationShutdown(signal) {
        this.logger.log(`Shutting down Netron (signal: ${signal})`);
        await this.netron.stop();
    }
    registerDiscoveredServices() {
        const providers = this.discoveryService.getProviders();
        for (const wrapper of providers) {
            const { instance, metatype } = wrapper;
            if (!instance || !metatype || typeof instance !== 'object')
                continue;
            if (!wrapper.isDependencyTreeStatic()) {
                this.logger.warn(`Service "${wrapper.name}" cannot be exposed because it is defined in a non-static provider.`);
                continue;
            }
            const qualifiedName = this.reflector.get(service_decorator_1.NETRON_SERVICE_METADATA, metatype);
            if (qualifiedName) {
                try {
                    this.netron.peer.exposeService(instance);
                    this.logger.log(`Service "${qualifiedName}" successfully exposed.`);
                }
                catch (error) {
                    this.logger.error(`Error exposing service "${qualifiedName}": ${error.message}`);
                }
            }
        }
    }
    get instance() {
        return this.netron;
    }
};
exports.NetronService = NetronService;
exports.NetronService = NetronService = NetronService_1 = __decorate([
    (0, common_1.Injectable)(),
    __param(0, (0, common_1.Inject)(constants_1.NETRON_OPTIONS)),
    __metadata("design:paramtypes", [Object, core_1.DiscoveryService,
        core_1.Reflector])
], NetronService);
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