mirror of
https://github.com/Hopiu/webapi-eca.git
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143 lines
3.3 KiB
JavaScript
143 lines
3.3 KiB
JavaScript
// Generated by CoffeeScript 1.6.3
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/*
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Rules Server
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============
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>This is the main module that is used to run the whole server:
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>
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> node server [log_type http_port]
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>
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>Valid `log_type`'s are:
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>
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>- `0`: standard I/O output (default)
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>- `1`: log file (server.log)
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>- `2`: silent
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>
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>`http_port` can be set to use another port, than defined in the
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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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>
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*/
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(function() {
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var args, conf, db, engine, http_listener, init, log, procCmds, shutDown;
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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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args = {};
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procCmds = {};
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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', 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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return shutDown();
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default:
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throw err;
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}
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});
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/*
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This function is invoked right after the module is loaded and starts the server.
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@private init()
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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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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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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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log.print('RS', 'Initialzing DB');
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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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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', '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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return http_listener.addHandlers(shutDown);
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}
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});
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};
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/*
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Shuts down the server.
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@private shutDown()
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*/
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shutDown = function() {
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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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procCmds.die = shutDown;
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init();
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}).call(this);
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