Re: [Zope-dev] A modest proposal: Replace medusa with Twisted
There is another approach however for getting Java and Zope together A few weeks back I was mucking around with the Python Java Extension (see Python 9 proceedings) and was able to interact with Java classes/instances directly from Zope by calling ExternalMethods. PJE basically allows the Java vm to be loaded into the python interpreter. Tim
I can speak about this one... The difficult part of getting Zope to w ork on Java, IMHO, is not the server. Without too terribly much work, I think you could get a servlet in front of Zope (once you've taken care of all of the other things).
We've made some progress toward getting Zope running on Java (http://www.phabric.org). The past few weeks, phabric has been on the back burner at Web Elite because of unrelated paying work.
There are two main areas of work in getting Zope on top of Java: the C modules and differences between C Python and Jython. We've made quite a bit of progress in both of those areas, but there's still more to be done before Zope will fire up and answer a request.
Kevin
Tim Hoffman Zute Pty Ltd mobile: 0411 068888 fax: +61 8 6210 1883 email: timh@zute.net
Been there, done that. JPE (as it was originally known, Java Python Extensions), has a fatal flaw, at most one JVM can be attached to a Python script at any one time, this single instance attaches itself to a single thread, and is not available in any other thread. I've had this working with Zope, even serving pages with Java stuff creating the content, but only intermittently. When Zope serves from the thread with the JVM attached everything is great, as soon as the thread changes, all hell breaks loose. That said, I think JPE/PJE is the best way forward, but this problem needs to be solved (if it hasn't already). Phil ----- Original Message ----- From: "Tim Hoffman" <timhoffman@cams.wa.gov.au> To: <zope-dev@zope.org>; <kdangoor@webelite.com> Sent: Thursday, October 11, 2001 4:32 PM Subject: Re: [Zope-dev] A modest proposal: Replace medusa with Twisted
There is another approach however for getting Java and Zope together
A few weeks back I was mucking around with the Python Java Extension (see Python 9 proceedings) and was able to interact with Java classes/instances directly from Zope by calling ExternalMethods. PJE basically allows the Java vm to be loaded into the python interpreter.
Tim
I can speak about this one... The difficult part of getting Zope to w ork on Java, IMHO, is not the server. Without too terribly much work, I think you could get a servlet in front of Zope (once you've taken care of all of the other things).
We've made some progress toward getting Zope running on Java (http://www.phabric.org). The past few weeks, phabric has been on the back burner at Web Elite because of unrelated paying work.
There are two main areas of work in getting Zope on top of Java: the C modules and differences between C Python and Jython. We've made quite a bit of progress in both of those areas, but there's still more to be done before Zope will fire up and answer a request.
Kevin
Tim Hoffman Zute Pty Ltd mobile: 0411 068888 fax: +61 8 6210 1883 email: timh@zute.net
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Phil Harris wrote:
That said, I think JPE/PJE is the best way forward, but this problem needs to be solved (if it hasn't already).
Latest CVS README says: Multithreading ============== Multithreading issues are taken care of. There is still a known issues concerning process termination (non-deamonic thread hang out) that can require that the process be interrupted or killed explicitely. Some more work need to be done on process termination and cleanup conditions of the virtual machines.
Hmhm, that is cool, I'll take another look then :) ----- Original Message ----- From: "Itamar Shtull-Trauring" <lists@itamarst.org> To: <zope-dev@zope.org> Sent: Thursday, October 11, 2001 5:39 PM Subject: Re: [Zope-dev] A modest proposal: Replace medusa with Twisted
Phil Harris wrote:
That said, I think JPE/PJE is the best way forward, but this problem needs to be solved (if it hasn't already).
Latest CVS README says: Multithreading ==============
Multithreading issues are taken care of. There is still a known issues concerning process termination (non-deamonic thread hang out) that can require that the process be interrupted or killed explicitely. Some more work need to be done on process termination and cleanup conditions of the virtual machines.
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participants (3)
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Itamar Shtull-Trauring -
Phil Harris -
Tim Hoffman