// create and initialize the token provider.
SecurityTokenProvider tokenProvider = serviceFactory.createTokenProvider(provider.getProviderClass());
Map<String, String> properties = new HashMap<String, String>();
for(PropertyType propertyType : provider.getProperty())
properties.put(propertyType.getName(), propertyType.getValue());
tokenProvider.initialize(properties);
// token providers can be keyed by the token type and by token element + namespace.
this.tokenProviders.put(provider.getTokenType(), tokenProvider);
String tokenElementAndNS = provider.getTokenElement() + "$" + provider.getTokenElementNS();
this.tokenProviders.put(tokenElementAndNS, tokenProvider);
}