/**
* Register the given parser factory for the specified syntax. If another factory is registered
* for the syntax it is replaced by the given one.
*/
public void add(Syntax syntax, SPARQLParserFactory f) {
if (!f.accept(syntax))
throw new IllegalArgumentException(
"The given parser factory does not accept the specified syntax.");
factories.put(syntax, f);
}
/**
* Return a suitable parser for the given syntax
*
* @param syntax the syntax to be processed
* @return a parser or null if none accept the request
*/
public SPARQLParser createParser(Syntax syntax) {
SPARQLParserFactory f = getFactory(syntax);
return (f != null) ? f.create(syntax) : null;
}
