logger.js

/*
Logger.js
Versatile logger. Create a logger for something, and log with it, and you can determine what to let through at runtime
*/
window['Logger'] = {
	whitelist: [],
	blacklist: [],
	useWhitelist: false,
	allow: function(file, obj, method) {
		for(var item in Logger.blacklist ) {
			if(item.matches(file, obj, method)) return false;
		}
		if(Logger.useWhitelist) {
			for(var item in Logger.whitelist) {
				if(item.matches(file, obj, method)) return true;
			}
		}else{
			return true;
		}
		return false;
	},
	create: function(file, obj){
		var self=this;
		self.obj=obj;
		self.file=file;
		self.log=function(stuff, usePrefix){
			if(window['Logger'].allow(self.file,self.obj, 'log')){
				if((!ISSET(usePrefix))||usePrefix){
					try{
						stuff=(ISSET(stuff,'object')?JSON.stringify(stuff):stuff);
					}catch(ex){}finally{
						console.log(window['Logger'].getPrefix(self.file, self.obj, 'log')+stuff);
					}
				}else{
					console.log({origin:{file:self.file,object:self.obj},data:stuff});
				}
			}
		};
		self.err=function(stuff){
			if(window['Logger'].allow(self.file,self.obj, 'err')){
				console.error(window['Logger'].getPrefix(self.file, self.obj, 'err')+stuff);
			}
		};
		return self;
	},
	getPrefix: function(file, obj, method) {
		return (method=='log'?"":method+" ")+(ISSET(file)?file+">":"")+obj+":";
	}
};