/**
* Returns the prefix associated with the specified namespace URI
*
* @param context contains the namespace map
* @param nsURI the namespace URI
* @return the prefix associated with the specified namespace URI, or null if not set
*/
public static String getNSPrefix(XMLCryptoContext context, String nsURI) {
if (context != null) {
return context.getNamespacePrefix(nsURI, context.getDefaultNamespacePrefix());
} else {
return null;
}
}