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Java Forum / General / January 2006How to connect Java and Perl ?
How to connect java and perl languages? Notify the links which provides java and perl connectivity. By Seenu How about executing one from the the other? Opalinski opalpa@gmail.com http://www.geocities.com/opalpaweb/ On 24 Jan 2006 04:55:01 -0800, "opalpa@gmail.com opalinski from opalpaweb" <opalpa@gmail.com> wrote, quoted or indirectly quoted someone who said : >How about executing one from the the other? There are two approaches: 1. exec. java spawn perl which runs independently communication by the command line parms and files left lying about. See http://mindprod.com/jgloss/exec.html 2. JNI. Java calls C/C++. The you solve the problem of having C/C++ talk to Perl.  SignatureCanadian Mind Products, Roedy Green. http://mindprod.com Java custom programming, consulting and coaching. > How to connect java and perl languages? > > Notify the links which provides java and perl connectivity. What are you trying to do? > How to connect java and perl languages? You'll have to give more information. There are many ways that a Perl and Java can be connected, and which to use depends on what you want to do. -- chris I may not be the OP, but this topic does interest me. Is there any easy way to call a perl script, giving it some string as input? (Without resorting to Runtime.exec()) Now, if that is possible, how about calling a perl function directly from java? And if that is possible, finally how about allowing perl functions called from java to make callbacks into java? Is there any solution to the later 2 problems (the first could be "solved" by just executing the interpreter, but i am looking for some scripting language to embed in an application) "Stefan Schulz" <schulz.stefan@gmail.com> said: >I may not be the OP, but this topic does interest me. Is there any easy >way to call a perl script, giving it some string as input? (Without [quoted text clipped - 9 lines] >"solved" by just executing the interpreter, but i am looking for some >scripting language to embed in an application) I haven't seen Java and Perl bridged anywhere, but if your need is just "a scripting language embeddable in Java", you could take a look at Jython - this should provide for both of your examples above. SignatureWolf a.k.a. Juha Laiho Espoo, Finland (GC 3.0) GIT d- s+: a C++ ULSH++++$ P++@ L+++ E- W+$@ N++ !K w !O !M V PS(+) PE Y+ PGP(+) t- 5 !X R !tv b+ !DI D G e+ h---- r+++ y++++ "...cancel my subscription to the resurrection!" (Jim Morrison) > I may not be the OP, but this topic does interest me. Is there any easy > way to call a perl script, giving it some string as input? (Without [quoted text clipped - 9 lines] > "solved" by just executing the interpreter, but i am looking for some > scripting language to embed in an application) How about: retVal = (String) xmlrpc.execute( methodName, params ); "Call Perl routines from Java, Use XML-RPC to call Perl routines from your Java code" http://www.javaworld.com/javaworld/jw-10-2004/jw-1011-xmlrpc.html or " Write CGI programs in Java, Learn how to program the server side of your Web applications through Java" http://www.javaworld.com/javaworld/jw-01-1997/jw-01-cgiscripts.html SignatureThanks in Advance... IchBin, Pocono Lake, Pa, USA http://weconsultants.servebeer.com/JHackerAppManager __________________________________________________________________________ 'If there is one, Knowledge is the "Fountain of Youth"' -William E. Taylor, Regular Guy (1952-) > I may not be the OP, but this topic does interest me. Is there any easy > way to call a perl script, giving it some string as input? (Without [quoted text clipped - 9 lines] > "solved" by just executing the interpreter, but i am looking for some > scripting language to embed in an application) Try looking at Apache Bean Scripting Framework, which supports BeanShell (very Java like), Jython (Python in Java), Groovy, Jacl (Tcl in Java), Rexx, etc Using BSF allows the user to choose which scripting language they prefer to use. You can always provide a preferred language with your distro . . . Rogan > Try looking at Apache Bean Scripting Framework, which supports BeanShell > (very Java like), Jython (Python in Java), Groovy, Jacl (Tcl in Java), > Rexx, etc That sounds good. I hadn't heard of it before. Saves me the effort of replying to Stefan too (I was just about to do so ;-) BTW, an interesting example of using Jython as the scripting languager (directly, not via the Apache framework) is GUESS ("The Graph Exploration System"): http://graphexploration.cond.org/ -- chris In my project, for one of my module i implemented in java other three modules i have implemented in perl.. So i have to run the module developed in java from perl programming.. Is it possible? Kindly reply.. > In my project, for one of my module i implemented in java other three > modules i have implemented in perl.. > > So i have to run the module developed in java from perl programming.. > Is it possible? Kindly reply.. There is a tutorial that talks about invoking Java from Perl and Perl from Java here.. http://www.sunsite.ualberta.ca/Documentation/Misc/perl-5.6.1/jpl/docs/Tutorial.html I do not work with perl all that much but there is a open source project on Sourceforge call "Inline". This lets you code Java inline in a perl script. Looks like the same idea as writing inline asem in C. http://inline.perl.org/java/home.html SignatureThanks in Advance... IchBin, Pocono Lake, Pa, USA http://weconsultants.servebeer.com/JHackerAppManager __________________________________________________________________________ 'If there is one, Knowledge is the "Fountain of Youth"' -William E. Taylor, Regular Guy (1952-) > So i have to run the module developed in java from perl programming.. >Is it possible? Kindly reply.. I have already answered what your options are. It really depends on what the modules do and how much the interact whether what you propose to do is feasible. If there were all three batch processes that read a file and write a file there would be no problem at all, for example. SignatureCanadian Mind Products, Roedy Green. http://mindprod.com Java custom programming, consulting and coaching. > In my project, for one of my module i implemented in java other three > modules i have implemented in perl.. > > So i have to run the module developed in java from perl programming.. > Is it possible? Kindly reply.. Double-ended pipes are easy to open in Perl. If you just occasionally need to grab some output, try system() or backticks. Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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