Hermes.js

Hermes definition in Wikipedia:

"Hermes is the great messenger of the gods in Greek mythology and a guide to the Underworld"
						

Hermes will log all the messages for you. Defer or send your logs immediately. Different defined message types:

• DISRUPTOR
• ALL
• DEBUG
• INFO
• TRACE
• WARNING
• ERROR
• FATAL

And if you have some error you can add (or add it by the system if it's an uncaugh error) info about the file (filename or filename Url) and the line number where the error is logged.

Another important things:

• You can create your own errors or messages
• You can create your own layouts
• You can create your own appenders
• You can create your own levels

Hermes is an error handler that allows you to create your own log appenders extending the Appender abstract class and define your log and clear methods.

API documentation

Examples to see for yourself!

Before using it:

Insert in your code:

<script type="text/javascript" src="/path/to/your/js/libs/Hermes.js"></script>
						

Add Error:

Hermes.logger.addError( new Hermes.error( Hermes.level.DEBUG,
				"Category", "Message", "", "" ) );
						

Log Error:

Hermes.logger.log();
						

Force Log:

Hermes.logger.forceLog();
						

Create a new Error:

var NewError = function(sFilenameUrl, nLineNumber)
{
	Hermes.error.apply(this, [Level.INFO, 'New Error', 'The error message',
					sFilenameUrl, nLineNumber, sDateFormat]);
};
NewError.prototype = new Hermes.error();
						

Create a new Layout:

var NewLayout = function()
{
	Hermes.layout.apply(this, arguments);
};
NewLayout.prototype = new Hermes.layout();
NewLayout.prototype.formatError = function(oError)
{
	//Your implementation must be here
};
						

Create a new Appender:

var NewAppender = function(oLevel, sCategory, sMessage, sFilenameUrl, nLineNumber,
				sDateFormat)
{
	Hermes.appender.apply(this, arguments);
	this.oLayout = new NewLayout();
};
NewAppender.prototype = new Hermes.appender();
NewAppender.prototype.log = function(oError)
{
	//Your implementation must be here
};
NewAppender.prototype.clear = function(oError)
{
	//Your implementation must be here
};
						

Trace methods in objects:

Start tracing:

Hermes.tracer.traceAll(oTest);
						

Stop tracing:

Hermes.tracer.untraceAll();
						

Launching a disruptor error:

Hermes.logger.addError(new Hermes.disruptorError('Message', 'File'));
						

• Developer version - 34kb
• Minimized version - 8kb
• Gzipped version - 3kb

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.