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Date: Wed, 7 Mar 2012 09:16:57 +0000 (UTC)
From: "Henry Story (Commented) (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (JENA-203) support for Non Blocking Parsers
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    [ https://issues.apache.org/jira/browse/JENA-203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13224111#comment-13224111 ] 

Henry Story commented on JENA-203:
----------------------------------

A lot slower means it is currently 10x slower. Small changes can make big differences in such parsers, but I won't have the time to tweak it now. If people would like to see how much they can improve they are welcome 
                
> support for Non Blocking Parsers
> --------------------------------
>
>                 Key: JENA-203
>                 URL: https://issues.apache.org/jira/browse/JENA-203
>             Project: Apache Jena
>          Issue Type: Improvement
>            Reporter: Henry Story
>
> In a Linked Data environment servers have to fetch data off the web. The speed at which such data 
> is served can be very slow. So one wants to avoid using up one thread for each connections (1 thread = 
> 0.5 to 1MB approximately). This is why Java NIO was developed and why servers such as Netty
> are so popular, why http client libraries such as https://github.com/sonatype/async-http-client are more
> and more numerous, and why framewks such as http://akka.io/ which support relatively lightweight
> actors (500 bytes per actor) are growing more viisible.
> Unless I am mistaken the only way to parse some content is using methods that use an 
> InputStream such as this:
>     val m = ModelFactory.createDefaultModel()
>      m.getReader(lang.jenaLang).read(m, in, base.toString)
> That read call blocks. Would it be possible to have an API which allows
> one to parse a document in chunks as they arrive from the input?

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