Return-Path: 
 <dev-return-57701-apmail-ant-dev-archive=ant.apache.org@ant.apache.org>
Delivered-To: apmail-ant-dev-archive@www.apache.org
Received: (qmail 99943 invoked from network); 10 May 2004 09:30:21 -0000
Received: from unknown (HELO mail.apache.org) (209.237.227.199)
  by minotaur-2.apache.org with SMTP; 10 May 2004 09:30:21 -0000
Received: (qmail 95775 invoked by uid 500); 10 May 2004 09:30:29 -0000
Delivered-To: apmail-ant-dev-archive@ant.apache.org
Received: (qmail 95497 invoked by uid 500); 10 May 2004 09:30:27 -0000
Mailing-List: contact dev-help@ant.apache.org; run by ezmlm
Precedence: bulk
List-Unsubscribe: <mailto:dev-unsubscribe@ant.apache.org>
List-Subscribe: <mailto:dev-subscribe@ant.apache.org>
List-Help: <mailto:dev-help@ant.apache.org>
List-Post: <mailto:dev@ant.apache.org>
List-Id: "Ant Developers List" <dev.ant.apache.org>
Reply-To: "Ant Developers List" <dev@ant.apache.org>
Delivered-To: mailing list dev@ant.apache.org
Received: (qmail 95482 invoked by uid 98); 10 May 2004 09:30:26 -0000
Received: from jalberto@cellectivity.com by hermes.apache.org by uid 82 with
 qmail-scanner-1.20
 (clamuko: 0.70.  Clear:RC:0(212.18.242.163):.
 Processed in 0.323766 secs); 10 May 2004 09:30:26 -0000
X-Qmail-Scanner-Mail-From: jalberto@cellectivity.com via hermes.apache.org
X-Qmail-Scanner: 1.20 (Clear:RC:0(212.18.242.163):. Processed in 0.323766
 secs)
Received: from unknown (HELO leeds.cellectivity.com) (212.18.242.163)
  by hermes.apache.org with SMTP; 10 May 2004 09:30:26 -0000
X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0
content-class: urn:content-classes:message
MIME-Version: 1.0
Content-Type: text/plain;
	charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
Subject: RE: antlibs and classloaders #2
Date: Mon, 10 May 2004 10:29:54 +0100
Message-ID: <F3D701FEF0483B4AAA11A18CE328461B0781C4@leeds.cellectivity.com>
X-MS-Has-Attach: 
X-MS-TNEF-Correlator: 
Thread-Topic: antlibs and classloaders #2
Thread-Index: AcQ0YgsRsEMEewu9SOSdOj/Yc22yOgCDeq3A
From: "Jose Alberto Fernandez" <jalberto@cellectivity.com>
To: "Ant Developers List" <dev@ant.apache.org>
X-Spam-Rating: hermes.apache.org 1.6.2 0/1000/N
X-Spam-Rating: minotaur-2.apache.org 1.6.2 0/1000/N

> From: Mariano Benitez [mailto:mariano@fuegolabs.com]=20
>=20
> but ... If I call "typedef" for the same file, with the same=20
> task, same=20
> uri, etc, why it redefine the tasks if they are already defined?
>=20
> BTW, it could help an "unless" attribute for typedef, not to=20
> do it again :)
>    <typedef resource=3D"fuego/internal/test/ant/antlib.xml"      =20
> uri=3D"antlib:fuego.internal.test.ant"      =20
> loaderRef=3D"fuego.internal.test"=20
> classpathref=3D"fuego.internal.test.antlibs.path" unless=3D"defined"/>
>    <property name=3D"defined" value=3D"true"/>
>=20

I would advocate for a new condition:

  <isdefined {uri=3D"<uri>" | name=3D"[<NS>:]<name>"} />

Which is true for "uri" if there are things already defined in that uri;
and for "name" if there is a definition already associated with that
name
(in te particular NS). This should include all kinds of definitions
typedefs, macros, selectors, mappers, etc. We should add a "role"
also once that issue is sorted out.

Jose Alberto

> MAriano
>=20
> Peter Reilly wrote:
>=20
> > Hi Mariano,
> > I assume you are calling the "typedef" commands multiple times.
> > - hence the different antloaders. But you only need to typedef the=20
> > types/tasks once.
> >
> > You should wrap the taskdefs in a macrodef or a target,
> > and call them once in the master build file before doing
> > any subant, or ant calls.
> >
> > Peter
> >
> > Mariano Benitez wrote:
> >
> >> I am at the edge of a mental crisis, I need help....
> >>
> >>
> >> Can someone explain how antlib paths and tasks works, I have this
> >> situation that I cannot understand.
> >>
> >>
> >> I defined this:
> >>
> >> <project name=3D"fuego.internal.test.include" basedir=3D".">
> >>
> >>    <property name=3D"xml.encoding" value=3D"ISO-8859-1"/>
> >>      <path id=3D"fuego.internal.test.antlibs.path">
> >>        <fileset dir=3D"${fuego.basedir}/lib">
> >>            <include name=3D"fuegoexpress-antlib.jar"/>
> >>            <include name=3D"fuegoenterprise-antlib.jar"/>
> >>            <include name=3D"fuegoj2ee-antlib.jar"/>
> >>            <include name=3D"fuego-test-antlib.jar"/>
> >>        </fileset>
> >>    </path>
> >>    <typedef resource=3D"fuego/internal/test/ant/antlib.xml"      =20
> >> uri=3D"antlib:fuego.internal.test.ant"      =20
> >> loaderRef=3D"fuego.internal.test"
> >> classpathref=3D"fuego.internal.test.antlibs.path"/>
> >>    <typedef resource=3D"fuego/tools/ant/enterprise/antlib.xml"=20
> >> uri=3D"antlib:fuego.tools.ant.enterprise"=20
> >> loaderRef=3D"fuego.internal.test"=20
> >> classpathref=3D"fuego.internal.test.antlibs.path"/>
> >>    <typedef resource=3D"fuego/tools/ant/express/antlib.xml"   =20
> >> uri=3D"antlib:fuego.tools.ant.express"     =20
> >> loaderRef=3D"fuego.internal.test"=20
> >> classpathref=3D"fuego.internal.test.antlibs.path"/>
> >>    <typedef resource=3D"fuego/tools/ant/j2ee/antlib.xml"         =20
> >> uri=3D"antlib:fuego.tools.ant.j2ee"         =20
> >> loaderRef=3D"fuego.internal.test"=20
> >> classpathref=3D"fuego.internal.test.antlibs.path"/>
> >> </project>
> >>
> >> another Jar "fuegocore.jar" is in the classpath manifest of those
> >> jars, inside the fuegocore jar there is a clas "Loader".
> >>
> >> When I am executing one of the tasks in the antlib I do this.
> >>
> >> Inside an Utils.class static method:
> >>        task.log("[LOADERS]  Loader Class [" +=20
> Loader.class.hashCode()
> >> + "/" + Loader.class.getClassLoader() + "]");
> >>        task.log("[LOADERS]  Utils Class [" +=20
> Utils.class.hashCode() +
> >> "/" + Utils.class.getClassLoader() + "]");
> >>
> >> and  this is the result I get when I run this multiple times in the
> >> same ant run.
> >>
> >> [t:testsetup] [LOADERS]  Loader Class
> >> [6597453/java.net.URLClassLoader@affc70]
> >> [t:testsetup] [LOADERS]  Utils Class=20
> >> [19551658/org.apache.tools.ant.loader.AntClassLoader2@153f67e]
> >>
> >> [t:testsetup] [LOADERS]  Loader Class
> >> [6597453/java.net.URLClassLoader@affc70]
> >> [t:testsetup] [LOADERS]  Utils Class=20
> >> [10520143/org.apache.tools.ant.loader.AntClassLoader2@9a9b65]
> >>
> >> [t:testsetup] [LOADERS]  Loader Class
> >> [6597453/java.net.URLClassLoader@affc70]
> >> [t:testsetup] [LOADERS]  Utils Class=20
> >> [28623319/org.apache.tools.ant.loader.AntClassLoader2@da90c]
> >>
> >>
> >>
> >> the thing is: WHY THE LOADER CLASS IS ALWAYS THE SAME=20
> WHILE THE UTILS
> >> CLASS IS ALWAYS IN DIFFERENT ANT CLASSLOADERS!!!
> >>
> >> Also, If I put a static {} block in the Loader class it is invoked
> >> many times, not only one as it should, being the same=20
> class the one=20
> >> being returned.
> >>
> >> Please help,  I cannot understand what is causing this and the
> >> side-effect is that I get OutOfMemory errors when I run=20
> nightly batch=20
> >> tests.
> >>
> >>
> >> Everything is appreciated.
> >>
> >> MAriano
> >>
> >>=20
> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: dev-unsubscribe@ant.apache.org
> >> For additional commands, e-mail: dev-help@ant.apache.org
> >>
> >>
> >>
> >
> >
> >=20
> ---------------------------------------------------------------------
> > To unsubscribe, e-mail: dev-unsubscribe@ant.apache.org
> > For additional commands, e-mail: dev-help@ant.apache.org
> >
>=20
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@ant.apache.org
> For additional commands, e-mail: dev-help@ant.apache.org
>=20
>=20

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@ant.apache.org
For additional commands, e-mail: dev-help@ant.apache.org