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Subject: RE: make ant ignore forked thread
Date: Wed, 7 May 2003 10:26:56 -0400
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Thread-Topic: make ant ignore forked thread
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From: "Tharp, Joshua L, SOLGV" <jltharp@att.com>
To: "Ant Users List" <user@ant.apache.org>,
   "Jens Skripczynski" <skripi-lists@myrealbox.com>
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I haven't tried this, but...

Can you <exec> another ANT that does the <java> for Tomcat? Exec'ing ANT
ought to be easier than exec'ing Tomcat, and you could still use ANT's
features to establish your classpath... I realize it is still an exec,
but it might be worth a try.

Josh

-----Original Message-----
From: Jens Skripczynski [mailto:skripi-lists@myrealbox.com]=20
Sent: Wednesday, May 07, 2003 3:49 AM
To: Steffen Schluff
Cc: user@ant.apache.org
Subject: Re: make ant ignore forked thread

Hi Steffen,

I wanted to run tomcat just using the <java> task, as the exec task
limits me to the os specific commands (for tomcat startup.(bat|sh)).

But actually I can specify everything comcat needs inside one <java>
task
(with classpath, properties...), thus using ants ability to hide the OS
from
the script (i'm lazy).

So it seems, that currently the <java> task does not support to detach
(?) a
thread | forked jvm, it has started ?

To me it seems a great feature, having a single startup ant-script for a
java
based server.=20

Is it possible to add an additional tag to the <java> task like
'daemon=3D"yes"' needing 'fork=3D"yes"'. Ant is supposed to start the =
jvm
and
'forget' about it.


Steffen Schluff:
> there was a posting on this mailing list at the beginning of this year
> regarding this problem called "support for detached <exec> on Unix and
> Windows".
>=20
> You can find it at
> http://www.mail-archive.com/ant-user@jakarta.apache.org/msg23641.html
> otherwise try Google with the term "antrunasync". There is a download
on
> this page called ant_async.zip which includes a script based ant
extension
> solving this kinds of problems (for certain environments at least). It
works
> fine for us maybe you want to give it a try.
>=20
> Here is sample showing how to start Tomcat the comments are german but
> you'll probably get the idea anyway :-)
>=20
> <project name=3D"MyProject" default=3D"main">
>=20
> 	<target name=3D"main" >
>=20
> 		<tstamp/>
>=20
> 		<!-- antRunAsync Binaries muessen in %ANT_HOME%\bin
liegen -->
> 		<property name=3D"antRunAsync"
value=3D"C:\Java\ant-1.5.1\bin\antRunAsync"/>
> 		<property name=3D"exec.dir"
> value=3D"C:\Steffen\temp\Tomcat-4.1.12-LE-jdk14\bin"/>
> 		<property name=3D"exec" value=3D"${exec.dir}\startup.bat"/>
>=20
> 		<!-- Tomcat asynchron starten -->
> 		<echo message=3D"Starting Tomcat"/>
> 		<exec executable=3D"${antRunAsync}" dir=3D"${exec.dir}"
vmlauncher=3D"false"
> failonerror=3D"true">
> 			<arg line=3D"${exec}"/>
> 		</exec>
> 		<echo message=3D"Tomcat started"/>
>=20
> 		<!-- Ausfuehrung des Buildskripts unterbrechen bis
Tomcat gestartet
> ist -->
> 		<!-- Ist Tomcat nicht in einer bestimmten Zeit per http
erreichbar, -->
> 		<!-- wird der Buildvorgang mit einem Fehler abgebrochen
-->
> 		<echo message=3D"Waiting for Tomcat to be up and
running"/>
> 		<waitfor timeoutproperty=3D"tomcat.not.started"
> 			maxwait=3D"30" maxwaitunit=3D"second"
> 			checkevery=3D"500" checkeveryunit=3D"millisecond" >
> 			<http url=3D"http://localhost:8080/index.jsp"/>
> 		</waitfor>
> 		<fail message=3D"Unable to reach Tomcat"
if=3D"tomcat.not.started"/>
> 		<echo message=3D"Tomcat appears to be up and running"/>
>=20
> 	</target>
>=20
> </project>
Ciao

Jens Skripczynski
--=20
E-Mail: skripi-lists(at)myrealbox(dot)com

In this world there are only two tragedies; one is not getting
what one wants, the other is getting it.
                                  -- Oscar Wild


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