Re: [xml-dev] SAX parser for Netbeans [PERFORMANCE]

Mike Skells wrote:

> Hi,
> Sorry for the cross post but I was not sure which list to post this to.
>  
> I presume that NB uses the standard SAX parser available with JDK

See org.openide.xml.XMLUtil test:

 System.out.println("" + XMLUtil.createXMLReader(false, false).getClass());
 System.out.println("" + XMLUtil.createXMLReader(false, true).getClass());
 System.out.println("" + XMLUtil.createXMLReader(true, false).getClass());
 System.out.println("" + XMLUtil.createXMLReader(true, true).getClass());

produces:

 class org.apache.crimson.parser.XMLReaderImpl
 class org.apache.crimson.parser.XMLReaderImpl
 class org.apache.xerces.parsers.SAXParser
 class org.apache.xerces.parsers.SAXParser
 
It means that it does not use standard JRE parser. It selects
proper one based on performance characteristics we measured
in past.

> Has anyone looked at using Piccolo http://piccolo.sourceforge.net/
> parser.
> The tests that I have seen indicate that it is significantly faster.

What about conformance?
  
> I dont know how to configure the sax parser for NB, and I dont have an
> environment that can test the performance, as it needs to be tested on
> the actual files that are frequently used.
>  
> This could be an easy performance boost for all of NB couldn't it?

Possibly, the first start only. Then we turn almost all information
contained in XML into binary format caches.

  Cc.