Configuration Provider & Configuration
The ConfigurationProvider interface describes the framework’s configuration. By default, the framework loads its configurations via an XML document by using the
StrutsXmlConfigurationProvider
. The provider can be configured through a Dispatcher’s DispatcherListener.
Example
static {
Dispatcher.addDispatcherListener(new DispatcherListener() {
....
public void dispatcherInitialized(Dispatcher du) {
ConfigurationManager confManager = du.getConfigurationManager();
confManager.addConfigurationProvider( ... );
}
....
});
}
Configuration provider
ConfigurationProvider
is the basic piece of configuration used to tie all the options together in
ConfigurationManager
. There is few different implementations that are already used internally by the Apache Struts:
XmlConfigurationProvider
- proprietary XWork implementation which are using
xwork.xml
file as source of configuration
StrutsXmlConfigurationProvider
- primary configuration provider, represents
struts.xml
and
struts-plugin.xml
files
PropertiesConfigurationProvider
- used to load
struts.properties
ServletContextAwareConfigurationProvider
- marking interface allowing to inject
ServletContext
into provider
To inject your custom configuration provider use
configProviders
<init-param/>
in web.xml