tojava/lib/gmroute.js

这是一个server服务支持ftl

var R = require('ramda');
var fs = require('fs');
var path = require('path');
var util = require('../util/util.js');
var jspserver = require('./fmk-jsp');
/**
 * 根据配置文件规则加载数据
 * @param {} route
 * @param {} config
 * @param {} req
 * @param {} res
 * @returns {} 
 */
module.exports = R.curry(function(route, config, req, res, next) {
    var head = R.head(route);
    if (!head) {
        res.send("请配置数据文件模板文件");
        return;
    }
    var sendJson = function(json) {

        function jsonfn() {
            res.set("Content-Type", "application/json");
            res.send(json);
        }

        function jsonpfn() {
            res.set("Content-Type", "application/json");
            res.send(R.reduce(R.concat, req.query.callback, ["(", json, ")"]));
        }

        R.ifElse(R.isNil, jsonfn, jsonpfn)(R.path(['query', 'callback'], req));
    };
    var sendHtml = function(html) {
        res.set("Content-Type", "text/html");
        res.send(html);
    };
    var readFile = util.readFile;
    var abspath = function(path1) {
        return R.ifElse(R.test(/json$/),
            R.always(path.join(config.jettry.root,
                path1)),
            R.identity)(path1);
    };
    var parsepath = function(path1) {
        req.cwd = path.join(__dirname, '..');
        req.config = config;
        return util.formatstr(path1, req);
    };


    function callnext() {
        next();
    }

    function send(str) {
        
        res.send(str);
    }

    function jspReq(head) {
        jspserver.req(parsepath(head),
            R.map(parsepath, R.concat(config.project.request, R.tail(route))),
            send);
    }
    R.cond([
        [R.test(/json$/), R.pipe(parsepath, abspath, R.ifElse(fs.existsSync,
            R.pipe(readFile, sendJson),
            callnext))],
        [R.test(/html$/), R.pipe(parsepath, abspath, R.ifElse(fs.existsSync,
            R.pipe(readFile, sendHtml),
            callnext))],
        [R.T, jspReq]
    ])(head);



});