Merge pull request #231 from eurekaa/buffered-logger

added getBufferedLogger function.

lib/log4js.js

@@ -70,6 +70,29 @@ function hasLogger(logger) {
 }
 
 
+function getBufferedLogger(categoryName) {
+    var base_logger = getLogger(categoryName);
+    var logger = {};
+    logger.temp = [];
+    logger.target = base_logger;
+    logger.flush = function () {
+        for (var i = 0; i < logger.temp.length; i++) {
+            var log = logger.temp[i];
+            logger.target[log.level](log.message);
+            delete logger.temp[i];
+        }
+    };
+    logger.trace = function (message) { logger.temp.push({level: 'trace', message: message}); };
+    logger.debug = function (message) { logger.temp.push({level: 'debug', message: message}); };
+    logger.info = function (message) { logger.temp.push({level: 'info', message: message}); };
+    logger.warn = function (message) { logger.temp.push({level: 'warn', message: message}); };
+    logger.error = function (message) { logger.temp.push({level: 'error', message: message}); };
+    logger.fatal = function (message) { logger.temp.push({level: 'fatal', message: message}); };
+
+    return logger;
+}
+
+
 /**
  * Get a logger instance. Instance is cached on categoryName level.
  * @param  {String} categoryName name of category to log to.
@@ -375,6 +398,7 @@ function shutdown(cb) {
 }
 
 module.exports = {
+  getBufferedLogger: getBufferedLogger,
   getLogger: getLogger,
   getDefaultLogger: getDefaultLogger,
   hasLogger: hasLogger,