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What is LogBox?
• LogBox is an enterprise ColdFusion logging library designed to give you flexibility, simplicity and power when logging or tracing is needed in your applications.
• Inspired by Log4J (A Java logger made by Apache)
• LogBox is part of the ColdBox Platform 3.0 or can be used as a stand-alone logging library.
Message Severities
Severity Integer Level
FATAL 0 (Default LevelMin)
ERROR 1
WARN 2
INFO 3
DEBUG 4 (Default LevelMax)
Where Do I Use It?
Log messages can come from anywhere in your application.
• Logs from the framework (coldbox.system)
• Specific component (com.example.order.orderService)
• Package (com.example.security)• Ad-hoc locations (“nightly-
scheduled-task”)
Where Do The Messages Go?
Messages can be sent to any combination of appenders. LogBox ships with 14 appenders!
• Files• Asynch files• Emails• Databases• Java sockets• Twitter• Web Services
Custom Logging Levels
• Turn debugging of certain services on only when you need it (WireBox debugging)
• Log information or debug messages only on dev server, but not in production
• Only store logs from certain parts of your framework
Extending LogBox
• Create custom appenders• Create custom layouts• Empower your CFC’s to
create their own string representations for logging purposes.
Getting Started
The minimum you need to get started:
• Define root logger• Configure at least one
appender• That’s it!
3 Ways To Configure LogBox
• Configuration CFC (my favorite)
• XML Config• Programmatic Config
Configuration CFCfunction configure(){
logBox = {
// Define Appenders
appenders = {
coldboxTracer = {
class=“path.to.appender"
}
},
// Root Logger
root = { levelmax="INFO", levelMin=0, appenders="*" }
};
}
XML Config
<LogBox>
<!-- Appender Definitions -->
<Appender name="myconsole" class="path.to.appender" />
<!-- Root Logger -->
<root levelMin="0" levelMax="4" appenders="*">
</LogBox>
Programmatic Config
// Configuring some appenders and the root logger
config.appender(
name="Console",
class="path.to.appender");
// root logger
config.root(
levelMin=config.logLevels.FATAL,
levelMax=config.logLevels.INFO,
appenders="Console");
Code Examples
Base Functionality
• Simple LogBox in a non-ColdBox app• Simple LogBox in a ColdBox app• Configure different logging levels• Configure different logging levels per
environment• Configure multiple appenders• Configure multiple categories
Code Examples
Customizing/extending LogBox
• Write custom layout• Extra Info examples• Write custom appender
Questions?• Brad Wood• www.codersrevolution.com• [email protected]
• Mailing List:
groups.google.com/group/coldbox
• Docs: wiki.coldbox.org/wiki/LogBox.cfm
• Website:http://www.coldbox.org/
