mhl-dispatcher/libs/logger.js

A node dispatcher server for running and managing batch processes

var Log = require('log'),
	clc = require('cli-color'),
	db = require('./db.js'),
	fs = require('fs'),
	logger = {},
	root = __dirname.replace('\\libs',''),
	logReader = new Log('debug', fs.createReadStream(root + '/log/server.log')),
	logWriter = new Log('debug', fs.createWriteStream(root + '/log/server.log'));

module.exports = exports = logger;


logger.group = '';
logger.server = null;
logger.silent = false;

logger.COLORS = {
	summary 	: 	clc.white,
	debug 		: 	clc.magenta,
	info 		: 	clc.green,
	notice 		: 	clc.blue,
	warning 	:   clc.yellow.bold,
	error 		: 	clc.red.bold,
	critical 	: 	clc.red.bold,
	alert 		: 	clc.red.bold,
	emergency 	: 	clc.red.bold
};

logger.TYPES = {
	SUMMARY 	: 	'summary',
	DEBUG 		: 	'debug',
	INFO 		: 	'info',
	NOTICE 		: 	'notice',
	WARNING 	:   'warning',
	ERROR 		: 	'error',
	CRITICAL 	: 	'critical',
	ALERT 		: 	'alert',
	EMERGENCY 	: 	'emergency'
};

logger.serverLog = function(message, type){
	var now = new Date(),
		server = logger.server; 
	if(!server){
		console.log(server);
		return;
	}
	//writing to the the log file
	logWriter[type](server.hostname + '['+ server.serverId +']: ' + server.current.funcName + '(' + server.current.funcState + ') - ' + message);
	//writing to the console
	console.log(clc.white.bold(now) + ' - ' + clc.magenta.bold(server.hostname) + '['+ clc.magentaBright(server.serverId) +']: ' + clc.yellow.bold(server.current.funcName) + '(' + logger.COLORS[type](server.current.funcState) + ') - ' + logger.COLORS[type](message));
};

logger.batchLog = function(severity, message){
	var server = logger.server;
	if(!server){
		console.log(server);
		return;
	}
	db.batchLog(server.current.batch, severity, message, logger.group, server.current.funcName, server.current.funcState, function(err, rowsAffected, parameters){
		//if there is an error logging to the Batch Log tell the Server
		if(err){
			server.current.funcState = 'db.batchLog: Error during log.';
			logger.serverLog(err, logger.TYPES.ERROR);
		}else{
			server.current.funcState = 'db.batchLog: Batch log complete.';
			logger.serverLog('Oracle Batch Log complete.', logger.TYPES.DEBUG);
		}
	});
};

logger.fullLog = function(severity, message, type){
	var server = logger.server;
	if(!server){
		console.log(server);
		return;
	}
	logger.serverLog(message, type);
	logger.batchLog(severity, message);
};

logger.viewLog = function(){
	logReader.on('line', function(line){
		console.log(line);
	});

};