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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.
static {
Dispatcher.addDispatcherListener(new DispatcherListener() {
....
public void dispatcherInitialized(Dispatcher du) {
ConfigurationManager confManager = du.getConfigurationManager();
confManager.addConfigurationProvider( ... );
}
....
});
}
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 filesPropertiesConfigurationProvider - used to load struts.propertiesServletContextAwareConfigurationProvider - marking interface allowing to inject ServletContext into providerTo inject your custom configuration provider use configProviders <init-param/> in web.xml