apache-commons-configuration

The Commons Configuration software library provides a generic configuration interface which enables a Java application to read configuration data from a variety of sources. Commons Configuration provides typed access to single, and multi-valued configuration parameters as demonstrated by the following code:

Double double = config.getDouble("number"); Integer integer = config.getInteger("number");

Configuration parameters may be loaded from the following sources:

• Properties files
• XML documents
• Windows INI files
• Property list files (plist)
• JNDI
• JDBC Datasource
• System properties
• Applet parameters
• Servlet parameters

Configuration objects are created using configuration builders. Different configuration sources can be mixed using a CombinedConfigurationBuilder and a CombinedConfiguration. Additional sources of configuration parameters can be created by using custom configuration objects. This customization can be achieved by extending AbstractConfiguration or AbstractHierarchicalConfiguration.