harmony-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Mikhail Loenko" <mloe...@gmail.com>
Subject Re: Re: [classlib][pack200] Status update
Date Thu, 10 Aug 2006 05:15:06 GMT
PopulationCodecTest is missing, but there are other new files in the patch.

You can see all of them if open the patch with a text editor and seek for
"(revision 0)" substring

Thanks,
Mikhail

2006/8/9, Alex Blewitt <alex.blewitt@gmail.com>:
> Weird. I don't know what happened. I've attached PopulationCodec (a
> new file) separately to the bug report. There's also BHSDCodec, which
> is new in the patch, as well as PopulationCodecTest. Are they there
> too?
>
> Alex.
>
> On 08/08/06, Mikhail Loenko <mloenko@gmail.com> wrote:
> > Hi Alex
> >
> > Thanks for the patch!
> >
> > I have a problem with integration: this classes
> >     org.apache.harmony.archive.internal.pack200.CodecEncoding
> > refers to the PopulationCodec class that seems to be missing
> >
> > I'm trying to apply 'patch' [1]. Am I doing anything wrong?
> >
> > Thanks,
> > Mikhail
> >
> > [1] http://issues.apache.org/jira/secure/attachment/12338321/patch
> >
> > 2006/8/8, Alex Blewitt <alex.blewitt@gmail.com>:
> > > I've been getting further towards the Pack200 implementation with
> > > finishing off the codecs that are used to decode values from the file.
> > > Although most of the default codecs were in place, the pack200 spec
> > > allows for dynamic switching to arbitrary codecs should the compressor
> > > warrant it, including a population-based encoding for (in)frequent
> > > values. I've submitted Harmony 1019 with the patch; if someone could
> > > apply that, I'd be grateful.
> > >
> > > At present, the pack200 algorithm gets as far as the inner class
> > > definitions, but I've still got to decode the annotations and
> > > bytecode. I'm thinking that as a first-cut, I will ignore any pack
> > > files with annotations in and plough through the bytecode so that we
> > > can at least start using it for simple pack files.
> > >
> > > I've got a bit of work left to integrate the dynamic switching of band
> > > encodings (but that's OK since most of the simple pack files only use
> > > the default) that will involve a bit of refactoring, and essentially
> > > then just the bytecode (as long as there are no annotations). I don't
> > > think it will be too long before we can unpack simple files on some of
> > > the lower-quality settings :-)
> > >
> > > Also, when I get around to implementing some of the coding (as opposed
> > > to decoding), I'm pretty sure that some of the techniques might be
> > > useful for compressing arbitrary data streams. It would be interesting
> > > to see what other uses there are for the codecs.
> > >
> > > Onwards, upwards, and/or sideways,
> > >
> > > Alex.
> > >
> > > ---------------------------------------------------------------------
> > > Terms of use : http://incubator.apache.org/harmony/mailing.html
> > > To unsubscribe, e-mail: harmony-dev-unsubscribe@incubator.apache.org
> > > For additional commands, e-mail: harmony-dev-help@incubator.apache.org
> > >
> > >
> >
> > ---------------------------------------------------------------------
> > Terms of use : http://incubator.apache.org/harmony/mailing.html
> > To unsubscribe, e-mail: harmony-dev-unsubscribe@incubator.apache.org
> > For additional commands, e-mail: harmony-dev-help@incubator.apache.org
> >
> >
>
> ---------------------------------------------------------------------
> Terms of use : http://incubator.apache.org/harmony/mailing.html
> To unsubscribe, e-mail: harmony-dev-unsubscribe@incubator.apache.org
> For additional commands, e-mail: harmony-dev-help@incubator.apache.org
>
>

---------------------------------------------------------------------
Terms of use : http://incubator.apache.org/harmony/mailing.html
To unsubscribe, e-mail: harmony-dev-unsubscribe@incubator.apache.org
For additional commands, e-mail: harmony-dev-help@incubator.apache.org


Mime
View raw message