Klemek
93 lines
3.0 KiB
Markdown
93 lines
3.0 KiB
Markdown
# Simple Logger
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[](https://travis-ci.org/Klemek/SimpleLogger)
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A simple but useful Java logger to use everywhere.
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Current version v1.3.1
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## Download
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* [simple-logger-1.3.1.jar](../../raw/master/download/simple-logger-1.3.1.jar)
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## How to use
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Initialization :
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```Java
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Logger.init("logging.properties", Level.WARNING);
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// or
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Logger.init("logging.properties");
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Logger.setLevel(Level.WARNING);
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```
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Configuration file as follow (example) :
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```
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# Parameters for good behavior
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handlers=java.util.logging.ConsoleHandler
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.level=WARNING
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java.util.logging.ConsoleHandler.formatter=java.util.logging.SimpleFormatter
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# Customize date/time shown with this line
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java.util.logging.SimpleFormatter.format=[%1$tF %1$tT][%4$s]%5$s %n
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# Specify your app name here
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app_name=YourApp
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# (Optional, specify your app package)
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default_package=com.your.app
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# (Optional, specify an output file pattern)
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output_file=output.log
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```
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The default package works as follow : When logging stack trace of an error, it will stop when the package doesnt't match your app anymore. It helps having small and relevant stack trace in logs.
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Usage :
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```Java
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//general logging
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Logger.log("my message"); //INFO log
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Logger.log("my message : {0}", 123); //INFO log with parameters
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Logger.log(Level.WARNING, "my message"); //custom level log
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Logger.log(Level.SEVERE, "my message : {0}-{1}", 123, 456); //custom level log with parameters
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//exception logging
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Logger.log(exception1); //SEVERE logging with stack trace
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Logger.log(exception2, "exception when doing task"); //SEVERE logging with stack trace and message
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Logger.log(Level.WARNING, exception3); //custom level logging without stack trace
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Logger.log(Level.INFO, exception4, "exception when doing task"); //custom level logging with message
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```
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This will show the following :
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```
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[INFO][MyApp-CallingClass] my message
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[INFO][MyApp-CallingClass] my message : 123
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[WARNING][MyApp-CallingClass] my message
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[SEVERE][MyApp-CallingClass] my message : 123-456
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[SEVERE][MyApp-CallingClass] (exception1.toString)
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[SEVERE][MyApp-CallingClass] (exception1.stackTrace)
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[SEVERE][MyApp-CallingClass] (exception1.stackTrace)
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[SEVERE][MyApp-CallingClass] ...
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[SEVERE][MyApp-CallingClass] exception when doing task : (exception2.toString)
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[SEVERE][MyApp-CallingClass] (exception2.stackTrace)
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[SEVERE][MyApp-CallingClass] (exception2.stackTrace)
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[SEVERE][MyApp-CallingClass] ...
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[WARNING][MyApp-CallingClass] (exception3.toString)
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[INFO][MyApp-CallingClass] exception when doing task : (exception4.toString)
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```
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## Maven
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You can use this project as a maven dependency with this :
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```XML
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<repositories>
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...
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<repository>
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<id>fr.klemek</id>
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<url>https://github.com/klemek/mvn-repo/raw/master</url>
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</repository>
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</repositories>
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...
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<dependencies>
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...
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<dependency>
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<groupId>fr.klemek</groupId>
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<artifactId>simple-logger</artifactId>
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<version>1.3.1</version>
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</dependency>
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</dependencies>
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```
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