log4js-node/lib/date_format.js
2015-03-20 18:35:53 +09:00

73 lines
2.2 KiB
JavaScript

"use strict";
exports.ISO8601_FORMAT = "yyyy-MM-dd hh:mm:ss.SSS";
exports.ISO8601_WITH_TZ_OFFSET_FORMAT = "yyyy-MM-ddThh:mm:ssO";
exports.DATETIME_FORMAT = "dd MM yyyy hh:mm:ss.SSS";
exports.ABSOLUTETIME_FORMAT = "hh:mm:ss.SSS";
function padWithZeros(vNumber, width) {
var numAsString = vNumber + "";
while (numAsString.length < width) {
numAsString = "0" + numAsString;
}
return numAsString;
}
function addZero(vNumber) {
return padWithZeros(vNumber, 2);
}
/**
* Formats the TimeOffest
* Thanks to http://www.svendtofte.com/code/date_format/
* @private
*/
function offset(timezoneOffset) {
// Difference to Greenwich time (GMT) in hours
var os = Math.abs(timezoneOffset);
var h = String(Math.floor(os/60));
var m = String(os%60);
if (h.length == 1) {
h = "0" + h;
}
if (m.length == 1) {
m = "0" + m;
}
return timezoneOffset < 0 ? "+"+h+m : "-"+h+m;
}
exports.asString = function(/*format,*/ date, timezoneOffset) {
var format = exports.ISO8601_FORMAT;
if (typeof(date) === "string") {
format = arguments[0];
date = arguments[1];
timezoneOffset = arguments[2];
}
// make the date independent of the system timezone by working with UTC
if (timezoneOffset === undefined) {
timezoneOffset = date.getTimezoneOffset();
}
date.setUTCMinutes(date.getUTCMinutes() - timezoneOffset);
var vDay = addZero(date.getUTCDate());
var vMonth = addZero(date.getUTCMonth()+1);
var vYearLong = addZero(date.getUTCFullYear());
var vYearShort = addZero(date.getUTCFullYear().toString().substring(2,4));
var vYear = (format.indexOf("yyyy") > -1 ? vYearLong : vYearShort);
var vHour = addZero(date.getUTCHours());
var vMinute = addZero(date.getUTCMinutes());
var vSecond = addZero(date.getUTCSeconds());
var vMillisecond = padWithZeros(date.getUTCMilliseconds(), 3);
var vTimeZone = offset(timezoneOffset);
date.setUTCMinutes(date.getUTCMinutes() + timezoneOffset);
var formatted = format
.replace(/dd/g, vDay)
.replace(/MM/g, vMonth)
.replace(/y{1,4}/g, vYear)
.replace(/hh/g, vHour)
.replace(/mm/g, vMinute)
.replace(/ss/g, vSecond)
.replace(/SSS/g, vMillisecond)
.replace(/O/g, vTimeZone);
return formatted;
};