For those interested, I succeeded in creating a stable, fast Java/R connection using https://search.maven.org/search?q=g:org.rosuda.REngine . The whole solution has a maven/docker setup making it reproducable.
-----Original Message----- From: Eduard Drenth <edre...@fryske-akademy.nl> To: r-help@r-project.org <r-help@r-project.org> Subject: Re: [R] calling r from java Date: Mon, 30 Nov 2020 08:36:16 +0000 sun.misc that is -----Original Message-----From: Eduard Drenth < edre...@fryske-akademy.nl>To: r-help@r-project.org < r-help@r-project.org>Subject: Re: [R] calling r from javaDate: Mon, 30 Nov 2020 07:18:46 +0000 First attempts to use jri on ubuntu 20.04 stranded.Steps I followed:1) download rJava from https://www.rforge.net/rJava/files/ 2) create a symlink /usr/lib/libjvm.so to /usr/lib/jvm/java-8-openjdk- amd64/jre/lib/amd64/server/libjvm.so3) configure and make jri4) createa symlink /usr/lib/libjri.so5) put the built JRI.jar in local mavenrepo6) include a dependency to the jar7) create and run a hello worldtest for RengineThe test fails because com.misc.Unsafe.prefetchRead isn't found. AsIunderstand depending on com.misc.Unsafe.* is a risk.I will not follow this route any further for now, though I stillthinkhaving jri available would be great. Steps to get there are Ithink:1) remove com.misc.Unsafe usage from the solution2) make libjriavailable in repositories (apt, yum, other)3) make JRI.jar available inmaven centralBye, Eduard-----Original Message-----From: Eduard Drenth <edre...@fryske-akademy.nl>To: spurdl...@gmail.com <spurdl...@gmail.com>Cc: r-help@r-project.org <r-help@r- project.org>Subject: Re: [R] callingr from javaDate: Sat, 28 Nov 2020 11:57:49 +0000Thanks all, I'll go for https://www.rforge.net/JRI/ and thelibrariesinmaven https://search.maven.org/search?q=jri The maven library is build from here https://www.rforge.net/rJava/files/ back in 2017.After this no new libsare published to maven.It would be nice (understatement) if publishingnew rJava componentstomaven becomes a regular part of R deveopmentprocesses.This would promote R use from Java which I think is good.Andof course I can help.Bye, Eduard-----Original Message-----From: AbbySpurdle <spurdl...@gmail.com>To:Eduard Drenth <edrenth@fryske- akademy.nl>Cc: r-help@r-project.org <r-help@r-project.org>Subject: Re:[R] calling r from javaDate: Sat, 28Nov 2020 15:55:36 +1300Hi Eduard, > Now I developed a service that > executesRscript(UsingProcessBuilder),sends text to stdin of the > process andreadsfromstdout of theprocess. This doesn't answer your question, but may be relevant.I have a java- based application that works on a similar principle.(Thecodeishorrendously bad and most of it should be thrown away).I'mplanningto write a terminal emulator, in the nearfuture.(Currently,secondplace on my top-level todo list).The primary objective is tobuildobject-oriented and messagepassingAPIs on top of the coreterminalemulation system, with at leastsomecross platformfunctionality.Notingthat, in my opinion, the cross-platform aspect ismoreimportant for R,than in many other IPC topics.Hence, I'm interestedin hearing"wishlist" items forsuchAPIs.______________________________________________R-help@r- project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproduciblecode.______________________________________________R- h...@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.______________________________________________r-h...@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Eduard Drenth, Software Architekt edre...@fryske-akademy.nl Doelestrjitte 8 8911 DX Ljouwert +31 58 234 30 47 +31 62 094 34 28 (privé) skype: eduarddrenth https://github.com/eduarddrenth frisian.eu gpg: https://pgp.surfnet.nl/pks/lookup?search=eduarddrenth Op freed bin ik thús/wurkje ik minder
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______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
