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Scout/HowTo/3.8/Setup different Log-Configuration for Production and Development
The Scout documentation has been moved to https://eclipsescout.github.io/.
Introduction
When using Eclipse Log, things are described in the Eclipse Log manual.
When using java log, by default the JRE's logging.properties in the jre/lib folder is used. For server-side Equinox applications the logging config should be left to the application server.
For client applications there is the system property -Djava.util.logging.config.class
that can be used.
This system property can be set in the product configuration's "Launching" tab and can be set to alternative
configuration classes in each product (dev, test, production).
- Create a fragment to the system.bundle that contains various log config classes.
- Add the fragment to your product configurations
- set the -Djava.util.logging.config.class=.... accordingly
Example fragment com.myapp.logger.fragment
Make sure to put these files into the same package and export the package in the manifest (unexported packages lead to ClassNotFoundException!)
MANIFEST.MF
Manifest-Version: 1.0 Bundle-ManifestVersion: 2 Bundle-Name: Logger Configurations Bundle-SymbolicName: com.myapp.logger.fragment Bundle-Version: 1.0.0.qualifier Fragment-Host: system.bundle Bundle-RequiredExecutionEnvironment: JavaSE-1.6 Export-Package: com.myapp.logger
Dev.java
package com.myapp.logger; import java.util.logging.LogManager; public class Dev { public Dev() throws Exception{ System.out.println("Loading logger configuration: "+getClass()); LogManager.getLogManager().readConfiguration(getClass().getResourceAsStream(getClass().getSimpleName()+".properties")); } }
Dev.properties
### Root level (do NOT set the root level to INFO, use the custom levels below) .level= WARNING ### Handlers handlers= java.util.logging.ConsoleHandler ### Handler properties # you have to set a value for the ConsoleHandler or otherwise it will set the Level INFO as default # and ignore all other levels java.util.logging.ConsoleHandler.level=ALL
System/Launching property:
-Djava.util.logging.config.class=com.myapp.logger.Dev
DevFine.java
package com.myapp.logger; import java.util.logging.LogManager; public class DevFine { public DevFine() throws Exception{ System.out.println("Loading logger configuration: "+getClass()); LogManager.getLogManager().readConfiguration(getClass().getResourceAsStream(getClass().getSimpleName()+".properties")); } }
DevFine.properties
### Root level (do NOT set the root level to INFO, use the custom levels below) .level= WARNING ### Handlers handlers= java.util.logging.ConsoleHandler ### Handler properties # you have to set a value for the ConsoleHandler or otherwise it will set the Level INFO as default # and ignore all other levels java.util.logging.ConsoleHandler.level=ALL ### Custom log levels com.myapp.server.online.services.common.sql.SqlService.level=INFO
System/Launching property:
-Djava.util.logging.config.class=com.myapp.logger.DevFine
Prod.java
package com.myapp.logger; import java.util.logging.LogManager; public class Prod { public Prod() throws Exception{ System.out.println("Loading logger configuration: "+getClass()); LogManager.getLogManager().readConfiguration(getClass().getResourceAsStream(getClass().getSimpleName()+".properties")); } }
Prod.properties
### Root level (do NOT set the root level to INFO, use the custom levels below) .level= WARNING ### Handlers handlers= java.util.logging.FileHandler ### Handler properties # .pattern is the log file path, this default here outputs in user's home directory java.util.logging.FileHandler.pattern = %h/my-log%u.log java.util.logging.FileHandler.limit = 100000000 java.util.logging.FileHandler.count = 10 java.util.logging.FileHandler.formatter = java.util.logging.SimpleFormatter ### Custom log levels
System/Launching property:
-Djava.util.logging.config.class=com.myapp.logger.Prod