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server in coffeescript
This commit is contained in:
Dominic Bosch
parent
3ab28e31f1
commit
12b5088d5e
5 changed files with 340 additions and 13 deletions
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@ -16,9 +16,132 @@ Valid `log_type`'s are:
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[config](config.html) file, to listen to, e.g. used by the test suite.
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###
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root = exports ? this
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root.foo = -> 'Hello World'
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###
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My comments will show up here
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###
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'use strict'
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path = require 'path'
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log = require './logging'
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conf = require './config'
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db = require './db_interface'
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engine = require './engine'
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http_listener = require './http_listener'
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mm = require './module_manager'
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args = {}
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procCmds = {}
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### Prepare the admin commands that are issued via HTTP requests. ###
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adminCmds = {
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'loadrules': mm.loadRulesFromFS,
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'loadaction': mm.loadActionModuleFromFS,
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'loadactions': mm.loadActionModulesFromFS,
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'loadevent': mm.loadEventModuleFromFS,
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'loadevents': mm.loadEventModulesFromFS,
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'loadusers': http_listener.loadUsers,
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'shutdown': shutDown
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};
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###
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Error handling of the express port listener requires special attention,
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thus we have to catch the process error, which is issued if
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the port is already in use.
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###
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process.on 'uncaughtException', (err) ->
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switch err.errno
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when 'EADDRINUSE'
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err.addInfo = 'http_port already in use, shutting down!'
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log.error 'RS', err
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shutDown()
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else log.error err
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null
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###
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## Initialize the Server
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This function is invoked right after the module is loaded and starts the server.
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###
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init = ->
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log.print 'RS', 'STARTING SERVER'
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if !conf.isReady()
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log.error 'RS', 'Config file not ready!'
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process.exit
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### Fetch the `log_type` argument and post a log about which log type is used. ###
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if process.argv.length > 2
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args.logType = parseInt(process.argv[2]) || 0
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switch args.logType
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when 0 then log.print 'RS', 'Log type set to standard I/O output'
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when 1 then log.print 'RS', 'Log type set to file output'
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when 2 then log.print 'RS', 'Log type set to silent'
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else log.print 'RS', 'Unknown log type, using standard I/O'
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log(args);
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else
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log.print 'RS', 'No log method argument provided, using standard I/O'
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### Fetch the `http_port` argument ###
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if process.argv.length > 3 then args.http_port = parseInt(process.argv[3]);
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else log.print 'RS', 'No HTTP port passed, using standard port from config file'
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### Initialize all required modules with the args object. ###
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db args
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db.isConnected((err, result) -> if !err then continueInit())
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continueInit = ->
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log.print 'RS', 'Initialzing engine'
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engine(args)
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log.print 'RS', 'Initialzing http listener'
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http_listener(args)
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log.print 'RS', 'Initialzing module manager'
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mm(args)
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log.print 'RS', 'Initialzing DB'
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### Distribute handlers between modules to link the application. ###
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log.print 'RS', 'Passing handlers to engine'
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engine.addDBLinkAndLoadActionsAndRules db
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log.print 'RS', 'Passing handlers to http listener'
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http_listener.addHandlers db, handleAdminCommands, engine.pushEvent
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log.print 'RS', 'Passing handlers to module manager'
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mm.addHandlers db, engine.loadActionModule, engine.addRule
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null
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###
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admin commands handler receives all command arguments and an answerHandler
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object that eases response handling to the HTTP request issuer.
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###
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handleAdminCommands = (args, answHandler) ->
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if args and args.cmd then adminCmds[args.cmd]?(args, answHandler)
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else log.print 'RS', 'No command in request'
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fAnsw = (ah) -> ->
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if not ah.isAnswered() then answHandler.answerError 'Not handled...'
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setTimeout fAnsw(answHandler), 2000
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null
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###
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Shuts down the server.
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@param {Object} args
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@param {Object} answHandler
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###
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shutDown = (args, answHandler) ->
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answHandler?.answerSuccess 'Goodbye!'
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log.print 'RS', 'Received shut down command!'
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engine?.shutDown()
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http_listener?.shutDown()
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###
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## Process Commands
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When the server is run as a child process, this function handles messages
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from the parent process (e.g. the testing suite)
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###
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process.on 'message', (cmd) -> procCmds[cmd]?()
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###
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The die command redirects to the shutDown function.
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###
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procCmds.die = shutDown
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###
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*Start initialization*
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###
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init()
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@ -1 +1,10 @@
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efew = require 'fs'
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###
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root = exports ? this
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root.foo = -> 'Hello World'
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console.log root.foo()
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My comments will show up here
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###
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@ -18,17 +18,197 @@ Valid `log_type`'s are:
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(function() {
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var root;
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'use strict';
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var adminCmds, args, conf, continueInit, db, engine, handleAdminCommands, http_listener, init, log, mm, path, procCmds, shutDown;
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root = typeof exports !== "undefined" && exports !== null ? exports : this;
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path = require('path');
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root.foo = function() {
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return 'Hello World';
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log = require('./logging');
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conf = require('./config');
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db = require('./db_interface');
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engine = require('./engine');
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http_listener = require('./http_listener');
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mm = require('./module_manager');
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args = {};
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procCmds = {};
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/* Prepare the admin commands that are issued via HTTP requests.*/
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adminCmds = {
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'loadrules': mm.loadRulesFromFS,
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'loadaction': mm.loadActionModuleFromFS,
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'loadactions': mm.loadActionModulesFromFS,
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'loadevent': mm.loadEventModuleFromFS,
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'loadevents': mm.loadEventModulesFromFS,
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'loadusers': http_listener.loadUsers,
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'shutdown': shutDown
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};
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/*
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My comments will show up here
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Error handling of the express port listener requires special attention,
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thus we have to catch the process error, which is issued if
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the port is already in use.
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*/
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process.on('uncaughtException', function(err) {
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switch (err.errno) {
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case 'EADDRINUSE':
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err.addInfo = 'http_port already in use, shutting down!';
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log.error('RS', err);
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shutDown();
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break;
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default:
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log.error(err);
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}
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return null;
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});
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/*
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## Initialize the Server
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This function is invoked right after the module is loaded and starts the server.
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*/
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init = function() {
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log.print('RS', 'STARTING SERVER');
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if (!conf.isReady()) {
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log.error('RS', 'Config file not ready!');
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process.exit;
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}
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/* Fetch the `log_type` argument and post a log about which log type is used.*/
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if (process.argv.length > 2) {
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args.logType = parseInt(process.argv[2]) || 0;
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switch (args.logType) {
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case 0:
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log.print('RS', 'Log type set to standard I/O output');
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break;
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case 1:
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log.print('RS', 'Log type set to file output');
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break;
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case 2:
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log.print('RS', 'Log type set to silent');
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break;
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default:
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log.print('RS', 'Unknown log type, using standard I/O');
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}
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log(args);
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} else {
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log.print('RS', 'No log method argument provided, using standard I/O');
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}
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/* Fetch the `http_port` argument*/
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if (process.argv.length > 3) {
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args.http_port = parseInt(process.argv[3]);
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} else {
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log.print('RS', 'No HTTP port passed, using standard port from config file');
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}
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/* Initialize all required modules with the args object.*/
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db(args);
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return db.isConnected(function(err, result) {
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if (!err) {
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return continueInit();
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}
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});
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};
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continueInit = function() {
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log.print('RS', 'Initialzing engine');
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engine(args);
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log.print('RS', 'Initialzing http listener');
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http_listener(args);
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log.print('RS', 'Initialzing module manager');
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mm(args);
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log.print('RS', 'Initialzing DB');
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/* Distribute handlers between modules to link the application.*/
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log.print('RS', 'Passing handlers to engine');
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engine.addDBLinkAndLoadActionsAndRules(db);
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log.print('RS', 'Passing handlers to http listener');
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http_listener.addHandlers(db, handleAdminCommands, engine.pushEvent);
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log.print('RS', 'Passing handlers to module manager');
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mm.addHandlers(db, engine.loadActionModule, engine.addRule);
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return null;
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};
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/*
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admin commands handler receives all command arguments and an answerHandler
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object that eases response handling to the HTTP request issuer.
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*/
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handleAdminCommands = function(args, answHandler) {
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var fAnsw, _name;
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if (args && args.cmd) {
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if (typeof adminCmds[_name = args.cmd] === "function") {
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adminCmds[_name](args, answHandler);
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}
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} else {
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log.print('RS', 'No command in request');
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}
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fAnsw = function(ah) {
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return function() {
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if (!ah.isAnswered()) {
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return answHandler.answerError('Not handled...');
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}
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};
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};
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setTimeout(fAnsw(answHandler), 2000);
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return null;
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};
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/*
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Shuts down the server.
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@param {Object} args
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@param {Object} answHandler
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*/
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shutDown = function(args, answHandler) {
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if (answHandler != null) {
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answHandler.answerSuccess('Goodbye!');
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}
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log.print('RS', 'Received shut down command!');
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if (engine != null) {
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engine.shutDown();
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}
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return http_listener != null ? http_listener.shutDown() : void 0;
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};
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/*
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## Process Commands
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When the server is run as a child process, this function handles messages
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from the parent process (e.g. the testing suite)
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*/
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process.on('message', function(cmd) {
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return typeof procCmds[cmd] === "function" ? procCmds[cmd]() : void 0;
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});
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/*
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The die command redirects to the shutDown function.
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*/
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procCmds.die = shutDown;
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/*
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*Start initialization*
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*/
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init();
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}).call(this);
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16
js-coffee/test.js
Normal file
16
js-coffee/test.js
Normal file
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@ -0,0 +1,16 @@
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// Generated by CoffeeScript 1.6.3
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(function() {
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var efew;
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efew = require('fs');
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/*
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root = exports ? this
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root.foo = -> 'Hello World'
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console.log root.foo()
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My comments will show up here
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*/
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}).call(this);
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@ -111,11 +111,10 @@ function handleAdminCommands(args, answHandler) {
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if(typeof func == 'function') func(args, answHandler);
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} else log.print('RS', 'No command in request');
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setTimeout(function(ah) {
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answHandler = ah;
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return function() {
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if(!answHandler.isAnswered()) answHandler.answerError('Not handeled...');
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if(!ah.isAnswered()) ah.answerError('Not handeled...');
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};
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}, 2000);
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}(answHandler), 2000);
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}
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/**
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