ant-ivy-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Xavier Hanin" <xavier.ha...@gmail.com>
Subject Re: Calling ivy from a java class/method
Date Tue, 03 Jul 2007 08:30:34 GMT
On 7/3/07, Jan.Materne@rzf.fin-nrw.de <Jan.Materne@rzf.fin-nrw.de> wrote:
>
> You could refactor the content of main() out:
>
>
> public static void main(String args) {
>     Main main = new Main();
>     main.process(args);
> }
> public void process(String args) {
>     // Use CommandLineParser for configuring Main
>     main.run()
> }
> public void run() {
>     // Ivy's work
> }


What's the use case behind this refactoring? to run multiple times the same
Ivy call?

Xavier

Jan
>
>
>
> >-----Ursprüngliche Nachricht-----
> >Von: Xavier Hanin [mailto:xavier.hanin@gmail.com]
> >Gesendet: Dienstag, 3. Juli 2007 09:39
> >An: ivy-user@incubator.apache.org
> >Betreff: Re: Calling ivy from a java class/method
> >
> >On 7/3/07, Michael Habbert <Michael.Habbert@netpioneer.de> wrote:
> >>
> >> Hi ivy users,
> >>
> >> A few days ago I get in contact with ivy (using bevor only
> >ant and maven).
> >> Quite fascinated about it a question did came up to my mind.
> >>
> >> What is the best way to call ivy from a java program?
> >> I do know calling: Runtime.getRuntime().exec(comand) will be
> >a way, but
> >> don't looks like the best way to me.
> >>
> >> Thanks in advance for any help or hints.
> >
> >
> >It depends on what you want to do and how you want your
> >program to evolve.
> >Using Runtime.getRuntime().exec(comand) has the drawback to
> >require to set a
> >classpath independently for Ivy. OTOH, Ivy then runs in another JVM and
> >can't make your calling JVM crash (I don't say that Ivy
> >crashes, but you may
> >have issues with memory consumption if your calling VM is too limited).
> >
> >Another approach is to embed Ivy and call the Main.main(args)
> >method. It's
> >roughly equivalent to Runtime.getRuntime().exec(comand) except
> >that it runs
> >in the same vm.
> >
> >Then you can also call Ivy API (the Ivy class is the main entry point),
> >which is much more flexible than the other options, but this
> >is not a stable
> >API, and you will certainly have to adapt your code when you
> >upgrade your
> >Ivy version.
> >
> >HTH,
> >
> >Xavier
> >
> >Mit freundlichen Grüßen
> >>
> >---------------------------------------------------------------
> >---------
> >> Michael Habbert
> >>
> >
> >
> >
> >--
> >Xavier Hanin - Independent Java Consultant
> >Creator of Ivy, xooki and xoocode.org
> >More about me: http://xhab.blogspot.com/
> >
>



-- 
Xavier Hanin - Independent Java Consultant
Creator of Ivy, xooki and xoocode.org
More about me: http://xhab.blogspot.com/

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message