astroboy/app/extends/context.js

Astroboy（阿童木）is a Nodejs SFB(Separation of Front and Back ends) framework, built on koa2.

"use strict";
/**
 * 扩展 Koa Context 对象
 */
const assert = require("assert");
const ctxExtends = {
    getConfig(...args) {
        return this.app.getConfig(...args);
    },
    getServiceClass(...args) {
        return this.app.getServiceClass(...args);
    },
    getService(packageName, serviceName) {
        assert(packageName, 'Package name cannot be empty!');
        assert(serviceName, 'Service name cannot be empty!');
        if (this.app.services && this.app.services[packageName] && this.app.services[packageName][serviceName]) {
            const ServiceClass = this.app.services[packageName][serviceName];
            return new ServiceClass(this);
        }
        else {
            throw new Error(`Service ${packageName} ${serviceName} is not found.`);
        }
    },
    async callService(service, method, ...args) {
        const keys = service.split('/');
        let packageName = undefined;
        let serviceName = undefined;
        if (keys.length === 2) {
            packageName = keys[0];
            serviceName = keys[1];
        }
        else if (keys.length === 1) {
            packageName = this.app.ROOT_NAME;
            serviceName = keys[0];
        }
        if (this.app.services && this.app.services[packageName] && this.app.services[packageName][serviceName]) {
            const ServiceClass = this.app.services[packageName][serviceName];
            const service = new ServiceClass(this);
            if (service[method]) {
                return await service[method](...args);
            }
            else {
                throw new Error(`method name ${method} is not found.`);
            }
        }
        else {
            throw new Error(`Service ${packageName} ${serviceName} is not found.`);
        }
    },
    invokeServiceMethod(pkgName, serviceName, methodName, ...args) {
        if (this.app.services && this.app.services[pkgName] && this.app.services[pkgName][serviceName]) {
            const ServiceClass = this.app.services[pkgName][serviceName];
            const service = new ServiceClass(this);
            if (service[methodName]) {
                return service[methodName](...args);
            }
            else {
                throw new Error(`method name ${methodName} is not found.`);
            }
        }
        else {
            throw new Error(`Service ${pkgName} ${serviceName} is not found.`);
        }
    },
    getLib(...args) {
        return this.app.getLib(...args);
    },
};
module.exports = ctxExtends;
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