<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=US-ASCII"> <META NAME="Generator" CONTENT="MS Exchange Server version 5.5.2653.12"> <TITLE>RE: [JDEV] Question on using NIO with SAX</TITLE> </HEAD> <BODY> Thanks for the info.   I will look into it and see if I can find something useful. Oscar -----Original Message----- From: Joe Hildebrand [<A HREF="mailto:jhildebrand@jabber.com">mailto:jhildebrand@jabber.com</A>] Sent: Friday, March 22, 2002 9:26 AM To: jdev@jabber.org Subject: Re: [JDEV] Question on using NIO with SAX I did a JNI wrapper around xpat for marbles, as a stop-gap. <A HREF="http://marbles.sourceforge.net/" TARGET="_blank">http://marbles.sourceforge.net/</A> Haven't worked on it in a while, but it should still be there. "Chan, Oscar" <OChan@pogo.com> writes: > Thanks. I guess I will have to live with this until the SAX API provide > API for this push-model parser.  > > I looked at the Xerces-J parser's parseSome() method, but it is only for > parsing the first line of XML document to get the encoding in XML > Declaration, so it does not work in the way that I needed. > > Thanks again, > > Oscar > > -----Original Message----- > From: David Waite [ <A HREF="mailto:mass@akuma.org">mailto:mass@akuma.org</A> <<A HREF="mailto:mass@akuma.org">mailto:mass@akuma.org</A>> ] > Sent: Thursday, March 21, 2002 5:16 PM > To: jdev@jabber.org > Subject: Re: [JDEV] Question on using NIO with SAX > > > This is an issue with the SAX Api (which understandably, we can't > change). What you want is a push-model parser (like SAX) which takes a > block of bytes/characters and calls events on the DocumentHandler (on > that thread) until that block of data has been processed, then returns > or saves the remainder until the next time it is passed.  SAX does not > define this, and anything which does this at least is extending SAX. > > I believe Xerces-J at least defines a parseSome method on its XmlParser > method, but I don't know if this does what you want. > > -David Waite > > Chan, Oscar wrote: > >> Hi all, >> >> I am new here.  I am now developing a message server based on the >> subset of Jabber protocol. I am building using Java, and SAX parser in > >> javax.xml.parsers package.   My problem is that I am trying to code >> the server so that it can use NIO (new i/o) package once java 1.4 is >> stable enough to use.  By using NIO, it eliminates the problem of >> having a thread per socket because it multiplexes the input and store >> the data in a buffer instead of blocking the call and waiting until >> data is available.  Usually, the server machine will slow down when >> the number of thread reach about 1000.  Therefore, NIO will increase >> the number of connection that we can have. >> >> Since parse() method in java.xml.parsers.SAXParser is using a blocking > >> I/O and, hence, it increase the number of threads. Does anyone know >> any workaround for it, or any future support for SAX using NIO? >> >> Thanks >> >> Oscar >> > > > > _______________________________________________ > jdev mailing list > jdev@jabber.org > <A HREF="http://mailman.jabber.org/listinfo/jdev" TARGET="_blank">http://mailman.jabber.org/listinfo/jdev</A> > <<A HREF="http://mailman.jabber.org/listinfo/jdev" TARGET="_blank">http://mailman.jabber.org/listinfo/jdev</A>>  > -- Joe Hildebrand Chief Architect Jabber, Inc. <A HREF="http://www.jabber.com/" TARGET="_blank">http://www.jabber.com/</A> _______________________________________________ jdev mailing list jdev@jabber.org <A HREF="http://mailman.jabber.org/listinfo/jdev" TARGET="_blank">http://mailman.jabber.org/listinfo/jdev</A> </BODY> </HTML>