@atomist/automation-client/lib/automationClient.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const cluster = require("cluster");
const stringify = require("json-stringify-safe");
const applicationEvent_1 = require("./internal/env/applicationEvent");
const ClusterMasterRequestProcessor_1 = require("./internal/transport/cluster/ClusterMasterRequestProcessor");
const ClusterWorkerRequestProcessor_1 = require("./internal/transport/cluster/ClusterWorkerRequestProcessor");
const EventStoringAutomationEventListener_1 = require("./internal/transport/EventStoringAutomationEventListener");
const ExpressRequestProcessor_1 = require("./internal/transport/express/ExpressRequestProcessor");
const ExpressServer_1 = require("./internal/transport/express/ExpressServer");
const MetricEnabledAutomationEventListener_1 = require("./internal/transport/MetricEnabledAutomationEventListener");
const showStartupMessages_1 = require("./internal/transport/showStartupMessages");
const DefaultWebSocketRequestProcessor_1 = require("./internal/transport/websocket/DefaultWebSocketRequestProcessor");
const payloads_1 = require("./internal/transport/websocket/payloads");
const WebSocketClient_1 = require("./internal/transport/websocket/WebSocketClient");
const string_1 = require("./internal/util/string");
const BuildableAutomationServer_1 = require("./server/BuildableAutomationServer");
const logger_1 = require("./util/logger");
const statsd_1 = require("./util/statsd");
class AutomationClient {
    constructor(configuration) {
        this.configuration = configuration;
        this.defaultListeners = [
            new MetricEnabledAutomationEventListener_1.MetricEnabledAutomationEventListener(),
            new EventStoringAutomationEventListener_1.EventStoringAutomationEventListener(),
            new showStartupMessages_1.StartupMessageAutomationEventListener(),
        ];
        this.automations = new BuildableAutomationServer_1.BuildableAutomationServer(configuration);
        global.__runningAutomationClient = this;
    }
    get automationServer() {
        return this.automations;
    }
    withCommandHandler(chm) {
        this.automations.registerCommandHandler(chm);
        return this;
    }
    withEventHandler(event) {
        this.automations.registerEventHandler(event);
        return this;
    }
    withIngester(ingester) {
        this.automations.registerIngester(ingester);
        return this;
    }
    processCommand(command, callback) {
        if (this.webSocketHandler) {
            return this.webSocketHandler.processCommand(command, callback);
        }
        else if (this.httpHandler) {
            return this.httpHandler.processCommand(command, callback);
        }
        else {
            throw new Error("No request processor available");
        }
    }
    processEvent(event, callback) {
        if (this.webSocketHandler) {
            return this.webSocketHandler.processEvent(event, callback);
        }
        else if (this.httpHandler) {
            return this.httpHandler.processEvent(event, callback);
        }
        else {
            throw new Error("No request processor available");
        }
    }
    run() {
        logger_1.configureLogging(logger_1.clientLoggingConfiguration(this.configuration));
        this.configureStatsd();
        const clientSig = `${this.configuration.name}:${this.configuration.version}`;
        const clientConf = stringify(this.configuration, string_1.obfuscateJson);
        if (!this.configuration.cluster.enabled) {
            logger_1.logger.info(`Starting Atomist automation client ${clientSig}`);
            logger_1.logger.debug(`Using automation client configuration: ${clientConf}`);
            if (this.configuration.ws.enabled) {
                return Promise.all([
                    this.runWs(() => this.setupWebSocketRequestHandler()),
                    this.runHttp(() => this.setupExpressRequestHandler()),
                ])
                    .then(() => this.setupApplicationEvents())
                    .then(() => this.raiseStartupEvent());
            }
            else {
                return this.runHttp(() => this.setupExpressRequestHandler())
                    .then(() => this.setupApplicationEvents())
                    .then(() => this.raiseStartupEvent());
            }
        }
        else if (cluster.isMaster) {
            logger_1.logger.info(`Starting Atomist automation client master ${clientSig}`);
            logger_1.logger.debug(`Using automation client configuration: ${clientConf}`);
            this.webSocketHandler = this.setupWebSocketClusterRequestHandler();
            return this.webSocketHandler.run()
                .then(() => {
                return Promise.all([
                    this.runWs(() => this.webSocketHandler),
                    this.runHttp(() => this.setupExpressRequestHandler()),
                ])
                    .then(() => this.setupApplicationEvents())
                    .then(() => this.raiseStartupEvent());
            });
        }
        else if (cluster.isWorker) {
            logger_1.logger.info(`Starting Atomist automation client worker ${clientSig}`);
            return Promise.resolve(this.setupWebSocketClusterWorkerRequestHandler())
                .then(workerProcessor => {
                this.webSocketHandler = workerProcessor;
                return this.raiseStartupEvent();
            });
        }
    }
    raiseStartupEvent() {
        return [...this.configuration.listeners, ...this.defaultListeners].filter(l => l.startupSuccessful)
            .map(l => () => l.startupSuccessful(this))
            .reduce((p, f) => p.then(f), Promise.resolve());
    }
    configureStatsd() {
        if (this.configuration.statsd.enabled === true) {
            this.defaultListeners.push(new statsd_1.StatsdAutomationEventListener(this.configuration));
        }
    }
    setupWebSocketClusterRequestHandler() {
        return new ClusterMasterRequestProcessor_1.ClusterMasterRequestProcessor(this.automations, this.configuration, [...this.defaultListeners, ...this.configuration.listeners], this.configuration.cluster.workers);
    }
    setupWebSocketClusterWorkerRequestHandler() {
        return ClusterWorkerRequestProcessor_1.startWorker(this.automations, this.configuration, [...this.defaultListeners, ...this.configuration.listeners]);
    }
    setupWebSocketRequestHandler() {
        return new DefaultWebSocketRequestProcessor_1.DefaultWebSocketRequestProcessor(this.automations, this.configuration, [...this.defaultListeners, ...this.configuration.listeners]);
    }
    setupApplicationEvents() {
        if (this.configuration.applicationEvents.enabled) {
            if (this.configuration.applicationEvents.workspaceId) {
                return applicationEvent_1.registerApplicationEvents(this.configuration.applicationEvents.workspaceId);
            }
            else if (this.configuration.workspaceIds.length > 0) {
                return applicationEvent_1.registerApplicationEvents(this.configuration.workspaceIds[0]);
            }
        }
        return Promise.resolve();
    }
    setupExpressRequestHandler() {
        return new ExpressRequestProcessor_1.ExpressRequestProcessor(this.automations, this.configuration, [...this.defaultListeners, ...this.configuration.listeners]);
    }
    runWs(handlerMaker) {
        const payloadOptions = {};
        if (this.configuration.ws && this.configuration.ws.compress) {
            payloadOptions.accept_encoding = "gzip";
        }
        this.webSocketHandler = handlerMaker();
        this.webSocketClient = new WebSocketClient_1.WebSocketClient(() => payloads_1.prepareRegistration(this.automations.automations, payloadOptions, this.configuration.metadata), this.configuration, this.webSocketHandler);
        return this.webSocketClient.start();
    }
    runHttp(handlerMaker) {
        if (!this.configuration.http.enabled) {
            return;
        }
        this.httpHandler = handlerMaker();
        this.httpServer = new ExpressServer_1.ExpressServer(this.automations, this.configuration, this.httpHandler);
        return this.httpServer.run();
    }
}
exports.AutomationClient = AutomationClient;
function automationClient(configuration) {
    const client = new AutomationClient(configuration);
    configuration.commands.forEach(c => {
        client.withCommandHandler(c);
    });
    configuration.events.forEach(e => {
        client.withEventHandler(e);
    });
    configuration.ingesters.forEach(e => {
        client.withIngester(e);
    });
    return client;
}
exports.automationClient = automationClient;
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