Hi Charlie,
I'm adding OpenJDK's Java SE core libraries since that's where Java NIO
lives. I doubt anything could be done at the class libraries level since
an API addition / enhancement would likely require JCP activity. But,
there may be some value in raising some awareness at the class libraries
level ?
I'd like to hear others reactions on this mailing list. My initial
reaction is what you are describing sounds like something that could be
very useful for a protocol parser. The core of Grizzly is protocol
independent. But, this might be a useful be able to offer to those who
are implementing the com.sun.grizzly.ProtocolParser<T> interface.
ProtocolParser is part of core Grizzly / Grizzly Framework.
I think some additional exploration / investigation is worthy. We are
in the process of gathering new feature requests. I think we should add
this to that list.
Again, anyone else who has some comments / reactions, please feel free
to jump in. :-)
charlie ...
Charles Oliver Nutter wrote:
Oniguruma is a C-based regular expression engine starting to get some
attention. The key selling points are its speed and the fact that it
can be applied to string content with arbitrary encodings. It will be
the default regex engine in Ruby 1.9.
JRuby 1.1 will ship with a port of Oniguruma dubbed "Joni". For us,
the benefit is that we'll finally have a fast regex engine that can
work with Ruby's encoding-free byte[]-based strings, where before we
had to convert to/from char[] for all regex engines. We expect to see
great gains in regex performance with JRuby 1.1 when we release the
final version in Decemberish timeframe.
But it has occurred to me there could be an even more interesting use
of Joni: as a regexp engine that could accept NIO bytebuffers
directly. Because it just walks byte[], no decoding is necessary.
Because it's encoding-agnostic, any arbitrary byte content could be
matched. So in theory it could easily be adapted to be a fast NIO
bytebuffer regex engine.
Would there be interest in such a thing? I'm sure there are other
NIO-related lists that would be appropriate, but Grizzly is the first
actual project that springs to mind when I think of NIO, so I thought
I'd toss it out there.
- Charlie
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--
Charlie Hunt
Java Performance Engineer
<http://java.sun.com/docs/performance/>
