Microlog Core Library 2.0.0-SNAPSHOT API

Microlog is a small logging library for Java ME (J2ME) like Log4j.

See:
          Description

Packages
net.sf.microlog.core This package contains the core classes and interfaces for Microlog.
net.sf.microlog.core.appender This package contains the implementation of the Appender classes for Microlog.
net.sf.microlog.core.config  
net.sf.microlog.core.format This package contains classes for that format the log contents before appending it to the log.
net.sf.microlog.core.format.command This package contains the helper classes for the PatternFormatter.
net.sf.microlog.midp This package contains the MIDP specific classes for Microlog.
net.sf.microlog.midp.appender This package contains the implementation of the Appender classes for Microlog on the MIDP platform.
net.sf.microlog.midp.bluetooth This package contains the Bluetooth specific classes.
net.sf.microlog.midp.file  
net.sf.microlog.midp.wma  
net.sf.microlog.spot  
net.sf.microproperties  
net.sf.microproperties.midp  

 

Microlog is a small logging library for Java ME (J2ME) like Log4j. It has support for logging to console, file, RecordStore, Canvas, Form, Bluetooth, a serial port (Bluetooth, IR, USB), Socket(incl SSL), UDP, Syslog, MMS, SMS, e-mail or to Amazon S3.

Quickstart Guide for Microlog
==============================

This is the quickstart guide for the impatient programmer. It assumes that you 
already have downloaded and extracted the zip delivery, since you are reading 
this document. Lets get going!

1. First you must ensure that the MicrologX.jar file is accessible to your 
   favorite IDE. The X is the version of your Microlog jar file.
   The s3me.jar file must also be present.

This is done in Eclipse this way:
Right click on the project in the "Package Explorer". Select "Build Path -> Add External Archives". You get prompted to select a zip/jar file.
In this case you should select the MicrologX.jar file.

2. Start programming!

a) You must create a instance of a Logger for each class that you should log. Start with the main class. In our example we use a MIDlet.
This looks like this:

private final static Logger log = Logger.getLogger();

b) The 2nd step is to configure the logger. This could be done either in your application, using a property file or using dependency 
injection. In our case we do it in the application directly. This is of course very static, but the simplest way to get going.
When you got this working, you could replace your configuration with a more flexible solution like using a property file.

This looks like this

public void SuperMIDlet(){
  Appender appender = new ConsoleAppender();
  log.addAppender(appender);
}

The log level is set by default to DEBUG and the default formatter is the SimpleFormatter.

c) Do the actual logging. This looks like this:
log.debug("Microlog is working!");

4) Compile and run your application (from your IDE). You should probably see your logged message.


5) Use Properties to configure Microlog (optional step) 

Microlog has support for configuring using properties.
The properties are fetched from the following sources in the specified order:
1. The JAD file.
2. A property file, e.g. microlog.properties.
3. The DefaultValues class.

To configure using properties, just add the following to our source code:

Properties properties = new Properties(this, "/myprops.properties");
log.configure(properties);

The first argument is a reference to your MIDlet and the second is the 
filename of your property file. There are several overloaded constructors
in the Properties class. If you omit the property file, the default 
property file is used; microlog.properties. If your property file is not
found Microlog issues a warning in your console output.

Happy logging!

Related Documentation

For overviews, tutorials, examples, guides, and tool documentation, please see:



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