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From Robert Koberg <...@koberg.com>
Subject howto trigger an Ant build within java
Date Thu, 29 Jan 2004 16:18:59 GMT
[resending -- didn't seem to make it through]

> Hi,
> 
> I am looking into using Ant (v1.6.0) more in my webapp so I can offer
> offline publishing equivalents. I am transforming some config XML into a
> build file. I then want to load that build file into a new
> org.apache.tools.ant.Project. The build.xml gets produce properly (it
> runs successfully from the command line).
> 
> How do I load the build file and create an ant project, then trigger a
> particular target to execute? The build file uses only Core Tasks (and
> an xmlcatalog). Is there a simple example somewhere? I have tried
> searching with google but getting too many hits that don't cover what I
> am looking for.
> 
> Here is what I have tried:
> 
> org.apache.tools.ant.Project antProject = new
> org.apache.tools.ant.Project();
> 
> AntXMLContext antContext = new AntXMLContext(antProject);
> 
> File f = lsbProject.lookup("build.xml").getFile();
> System.out.println("build.xml: " + f);
> 
> antContext.setBuildFile(f);
> System.out.println("project name: " + antContext.getCurrentProjectName());
> 
> Vector targets = antContext.getTargets();
> for (Enumeration e = targets.elements(); e.hasMoreElements();) {
>   Target target = (Target) e.nextElement();
> System.out.println(target.getName() + " : " + target.getDescription());
> }
> 
> ----------
> the System.outs produce:
> 
> build.xml: c:\home\app\projects\grok\build.xml
> project name: null
>  : null
> ----------
> 
> thanks for any help,
> -Rob
> 
> 
> 


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