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From "Gervais" <gerv...@polymedis.com>
Subject RE: [Personnal task] Executing javac from a task container
Date Mon, 09 Mar 2009 07:56:49 GMT
Hello,

Thank you for response. I have found the problem this week-end. As you said,
I have something wrong in my "javac" task. Now all work great.

My custom task walk (no recursively) trough a folder who contains many
source folders (each folder contains a module for a main app), set a
property who contains the source folder name and execute each "subtasks" who
compile sources collect resources and make a jar using the property to
create the path and the jar name.

It seems that the "subant" task can achieve what I do with my custom task
but I no (already) know this task.


Thank your really much. Now I know the "subant" task and the tip to launch
"ant -v".




-----Message d'origine-----
De : Antoine Levy Lambert [mailto:antoine@gmx.de] 
Envoyé : vendredi 6 mars 2009 23:27
À : Ant Users List
Objet : Re: [Personnal task] Executing javac from a task container


Hello Gervais,

out of my head I do not see anything specific about the javac task which 
would restrict its usage. Maybe you are just not passing to it the 
location of a directory containing source files due to a scripting 
error, or a mis-assumption about where the source directories are.

What I do not understand clearly from your email is how do your custom 
task and your build file interact ?

To find out in detail what is happening with javac, you could run your 
build in verbose mode.  (ant -v)


The classical way to compile and package many jars would be to :

- either create one build file per source folder,

- have these folder specific build files import  a generic build file in 
one location which can work for each source folder,

- then use the <subant/> task to iterate through the source folders


Regards,

Antoine


Gervais wrote:
> Hi everybody,
>
> I need to compile and package many jars (one jar per source folder).
Because
> I haven't found any task to do that, I have writing my own who extends
> org.apache.tools.ant.Task and implements
org.apache.tools.ant.TaskContainer.
>
> She work great with tasks like "echo", "mkdir", "copy" but the "javac"
task
> is never executed. How can I run the "javac" task from a TaskContainer ?
>
> Here is the main code and you can found the full class as attachment.
> public void execute() throws BuildException {
> 	if ( baseDir.isDirectory() ) {
> 		for (File subdir : baseDir.listFiles(new DirectoryFilter()))
> {
> 			if ( getProject().getProperty(identifier)==null ) {
> 				getProject().setNewProperty(identifier,
> subdir.getName());
> 			} else {
> 				getProject().setProperty(identifier,
> subdir.getName());
> 			}
> 	
> 			for (Task subtask : tasks) {
> 				log("> Run task "+subtask.getTaskName());
> 				subtask.perform();
> 			}
> 		}
> 	} else {
> 		log("Base directory \""+baseDir+"\". isn't a directory.",
> 0);
> 	}
> }
>
> And finally the task content :
> <foreach
> basedir="${manager.location}${file.separator}${manager.moddir}" 
> 					identifier="modulename">
> 			<echo level="info">Building module
> ${modulename}</echo>
> 			<mkdir
> dir="${modsdir}${file.separator}sicsmod-${modulename}"/>
> 			<javac
>
srcdir="${manager.location}${file.separator}${manager.moddir}${file.separato
> r}${modulename}" 
> 	
> destdir="${modsdir}${file.separator}sicsmod-${modulename}" 
> 	
> classpathref="manager.modules.classpath" 
> 	
> classpath="${build}${file.separator}${manager.jarname}"
> 					includes="${manager.modules}/**" 
> 					debug="on" />
> 			<!-- Copy each properties files (resources) and
> images -->
> 			<copy
> todir="${modsdir}${file.separator}sicsmod-${modulename}">
> 				<fileset
>
dir="${manager.location}${file.separator}${manager.moddir}${file.separator}$
> {modulename}" 
> 						includes="**/*.properties,
> **/*.png" />
> 			</copy>
> 		</foreach>
>
> Thanks
>  
>
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>   
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