@lxdhub/dbsync/lib/app.service.js

Display, search and copy LXD-images using a web interface.

"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;
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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); }
};
Object.defineProperty(exports, "__esModule", { value: true });
const db_1 = require("@lxdhub/db");
const common_1 = require("@nestjs/common");
const alias_1 = require("./alias");
const architecture_1 = require("./architecture");
const image_1 = require("./image");
const image_availability_1 = require("./image-availability");
const operating_system_1 = require("./operating-system");
const os_arch_1 = require("./os-arch");
const remote_1 = require("./remote");
const sync_run_1 = require("./sync-run");
const app_tokens_1 = require("./app.tokens");
let AppService = 
/**
 * The app services orchastrates the database synchronizer
 */
class AppService {
    /**
     * Initializes the app service
     */
    constructor(remoteService, operatingSystemService, architectureService, imageService, aliasService, osArchService, imageAvailabilityService, databaseService, syncRunService, settings) {
        this.remoteService = remoteService;
        this.operatingSystemService = operatingSystemService;
        this.architectureService = architectureService;
        this.imageService = imageService;
        this.aliasService = aliasService;
        this.osArchService = osArchService;
        this.imageAvailabilityService = imageAvailabilityService;
        this.databaseService = databaseService;
        this.syncRunService = syncRunService;
        this.settings = settings;
        this.logger = new common_1.Logger('Database Synchronizer');
    }
    async run() {
        if (this.settings.force) {
            this.syncRunService.resetAllSyncStates();
        }
        else {
            const currentlyRunningSyncs = await this.syncRunService.getCurrentlyRunningSyncs();
            if (currentlyRunningSyncs.length) {
                const logMessage = `There are currently ${currentlyRunningSyncs.length} other synchronization tasks running.\n` +
                    currentlyRunningSyncs
                        .map(sync => `- Sync #${sync.id} started at ${sync.started}`)
                        .join('\n') +
                    `You can enforce this database synchronization run by adding the "FORCE=true" environment variable.`;
                this.logger.error(logMessage);
                throw new Error(logMessage);
            }
        }
        await this.syncRunService.startSyncRun(this.syncRun.id);
        this.logger.log(`==> Started synchronization #${this.syncRun.id}`);
        // Run the synchronizers
        await this.remoteService.synchronize();
        await this.imageService.synchronize();
        await this.operatingSystemService.synchronize();
        await this.architectureService.synchronize();
        await this.aliasService.synchronize();
        await this.osArchService.synchronize();
        await this.imageAvailabilityService.synchronize();
    }
    /**
     * Start the database synchronizer.
     */
    async synchronize() {
        this.syncRun = await this.syncRunService.createSyncRun();
        this.logger.log(`==> Starting database synchronization #${this.syncRun.id}`);
        /**
         * If we don't handle rejected promises, then tye sync run will
         * crash the node process. We need to fail the sync run
         * otherwise the next syncrun won't start.
         */
        process.on('unhandledRejection', async (reason, promise) => {
            const error = `Unhandled Rejection at: ${promise}, reason: ${reason}`;
            this.logger.error(error);
            // fail the syncrun
            await this.syncRunService.failSyncRun(this.syncRun.id, error);
        });
        try {
            await this.run();
            await this.syncRunService.finishSyncRun(this.syncRun.id);
        }
        catch (ex) {
            await this.syncRunService.failSyncRun(this.syncRun.id, ex ? ex.message : '');
        }
        // Closes the database connection
        this.logger.log(`==> Finished database synchronization #${this.syncRun.id}`);
    }
    async onApplicationShutdown(signal) {
        this.logger.error(`Database sync shutting down ${signal}`);
        try {
            await this.databaseService.connection.connect();
            await this.syncRunService.failSyncRun(this.syncRun.id, `Database synchronization shutdown ${signal}`);
            await this.databaseService.closeConnection();
        }
        catch (ex) {
            this.logger.error(`Failed gracefully shutting down dbsync: ${ex.message}`);
        }
        process.exit(1);
    }
};
AppService = __decorate([
    common_1.Injectable()
    /**
     * The app services orchastrates the database synchronizer
     */
    ,
    __param(9, common_1.Inject(app_tokens_1.SETTINGS)),
    __metadata("design:paramtypes", [remote_1.RemoteService,
        operating_system_1.OperatingSystemService,
        architecture_1.ArchitectureService,
        image_1.ImageService,
        alias_1.AliasService,
        os_arch_1.OsArchService,
        image_availability_1.ImageAvailabilityService,
        db_1.DatabaseService,
        sync_run_1.SyncRunService, Object])
], AppService);
exports.AppService = AppService;
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