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From Matt Diehl <m...@etnstudio.com.INVALID>
Subject Re: lucene.search.highlight conversion
Date Wed, 03 May 2017 20:20:40 GMT
Thanks Shad.

I will wait to see the beta when it is released. I'm not sure how useful I
will be yet since I only have VisualStudio 2013; I see the basic
requirements are VS 2015. Does anyone else successfully use 2013 with this
endeavor?

Matt

On Wed, May 3, 2017 at 11:19 AM, Shad Storhaug <shad@shadstorhaug.com>
wrote:

> Matt,
>
> This is one of the interesting things with working on a Java port such as
> this - you pick up a few things about .NET that you didn't already know.
>
> String interning is an optimization that minimizes the memory needed to
> store strings. It essentially ensures that if you have 2 or more strings
> with the same value, they only appear once in RAM.
> https://msdn.microsoft.com/en-us/library/system.string.
> intern(v=vs.110).aspx
>
> As for why they are used in .NET but not Java, I suspect that someone saw
> an opportunity to make an optimization by using interning. That said, you
> might want to review to make sure it is doing what it is supposed to do.
>
> FYI - Highlighter was ported several months ago on pull request #191 (
> https://github.com/apache/lucenenet/pull/191), which was merged to master
> last week. If you need to use it, it is available now on our CI feed (
> https://www.myget.org/gallery/lucene-net-ci). Pending a release vote, we
> will have a beta up on NuGet in a couple of days.
>
> That said, we still have some missing pieces - see our contributing page
> for the current status: https://github.com/apache/lucenenet/blob/master/
> CONTRIBUTING.md. If you want to help out we certainly would appreciate
> it. The most pressing issues are some flakey tests and fixing documentation
> comments - and of course we could use some help getting it setup to
> generate the documentation. But there are also some modules to port and
> command-line tools to build into executables, if you are interested.
>
> Thanks,
> Shad Storhaug (NightOwl888)
>
>
> -----Original Message-----
> From: Matt Diehl [mailto:matt@etnstudio.com.INVALID]
> Sent: Wednesday, May 3, 2017 11:19 PM
> To: dev@lucenenet.apache.org
> Subject: lucene.search.highlight conversion
>
> Hi,
>
> Has anyone converted this yet? I pulled from the latest checked-in branch
> and was working on getting this compiling. Most of the conversion is
> adding/removing "()" and changing 'count' to 'size' and removing 'get' from
> function names. I've not worked with this before, and I have a question.
>
> if (fieldName != null)
> {
>     fieldName = StringHelper.Intern(fieldName); }
>
> I keep seeing the the above call. It seems like some sort of
> sanity-cleaning funciton that takes a string and returns a string. It
> doesn't really exist though (and doesn't exist in Java Lucene from my
> searching). Can someone help me?
>
> Thanks,
> Matt
>

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