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server.js
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/
server.js
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#!/bin/env node
// OpenShift sample Node application
var express = require('express');
var mongoose = require('mongoose');
/**
* Define the sample application.
*/
var NodeApp = function() {
// Scope.
var self = this;
/* ================================================================ */
/* Helper functions. */
/* ================================================================ */
/**
* Set up server IP address and port # using env variables/defaults.
*/
self.setupVariables = function() {
// Set the environment variables we need.
self.ipaddress = process.env.OPENSHIFT_NODEJS_IP;
self.port = process.env.OPENSHIFT_NODEJS_PORT || 8080;
if (typeof self.ipaddress === "undefined") {
// Log errors on OpenShift but continue w/ 127.0.0.1 - this
// allows us to run/test the app locally.
console.warn('No OPENSHIFT_NODEJS_IP var, using 127.0.0.1');
self.ipaddress = "127.0.0.1";
};
self.mongoHost = process.env.OPENSHIFT_MONGODB_DB_HOST;
self.mongoPort = process.env.OPENSHIFT_MONGODB_DB_PORT;
self.mongoUser = process.env.OPENSHIFT_MONGODB_DB_USERNAME;
self.mongoPass = process.env.OPENSHIFT_MONGODB_DB_PASSWORD;
if ( (typeof self.mongoHost === "undefined") || (typeof self.mongoPort === "undefined" ) ){
console.error('No MongoDB host configuration, setup OPENSHIFT_MONGODB_DB_HOST & OPENSHIFT_MONGODB_DB_PORT');
return false;
}
if ( (typeof self.mongoUser === "undefined") || (typeof self.mongoPass === "undefined" ) ){
console.error('No MongoDB user configuration, setup OPENSHIFT_MONGODB_DB_USERNAME & OPENSHIFT_MONGODB_DB_PASSWORD');
return false;
}
self.mongoURL = "mongodb://"+self.mongoUser+":"+self.mongoPass+"@"+self.mongoHost+":"+self.mongoPort+"/"
return true;
};
/**
* terminator === the termination handler
* Terminate server on receipt of the specified signal.
* @param {string} sig Signal to terminate on.
*/
self.terminator = function(sig){
if (typeof sig === "string") {
console.log('%s: Received %s - terminating sample app ...',
Date(Date.now()), sig);
process.exit(1);
}
console.log('%s: Node server stopped.', Date(Date.now()) );
};
/**
* Setup termination handlers (for exit and a list of signals).
*/
self.setupTerminationHandlers = function(){
// Process on exit and signals.
process.on('exit', function() { self.terminator(); });
// Removed 'SIGPIPE' from the list - bugz 852598.
['SIGHUP', 'SIGINT', 'SIGQUIT', 'SIGILL', 'SIGTRAP', 'SIGABRT',
'SIGBUS', 'SIGFPE', 'SIGUSR1', 'SIGSEGV', 'SIGUSR2', 'SIGTERM'
].forEach(function(element, index, array) {
process.on(element, function() { self.terminator(element); });
});
};
/**
* Initialize the server (express) and create the routes and register
* the handlers.
*/
self.initializeServer = function() {
self.app = express();
self.app.configure(function() {
self.app.use(express.static(__dirname + '/static')); // set the static files location /public/img will be /img for users
self.app.use(express.logger('dev')); // log every request to the console
self.app.use(express.bodyParser()); // have the ability to pull information from html in POST
self.app.use(express.methodOverride()); // have the ability to simulate DELETE and PUT
});
//self.createRoutes();
require('./app/routes')(self.app); // configure our routes
};
/**
* Initializes the sample application.
*/
self.initialize = function() {
if (!self.setupVariables()){
return false;
}
self.setupTerminationHandlers();
// Create the express server and routes.
self.initializeServer();
return true;
};
/**
* Start the server (starts up the sample application).
*/
self.start = function() {
// Connect to MongoDB
mongoose.connect(self.mongoURL);
console.log('%s: MongoDB connected to %s:%d ...',
Date(Date.now() ), self.mongoHost,self.mongoPort);
// Start the app on the specific interface (and port).
self.app.listen(self.port, self.ipaddress, function() {
console.log('%s: Node server started on %s:%d ...',
Date(Date.now() ), self.ipaddress, self.port);
});
};
}; /* Sample Application. */
/**
* main(): Main code.
*/
var app = new NodeApp();
if( app.initialize() ){
app.start();
exports = module.exports = app;
}