How to call Jakarta Ant via JAVA?

Question

Hi.
My application has a new menu. This menu creates a build.xml Ant file.
Now, when this menu is invoked , its action should call
Jakarta Ant, after creating the xml file, so that the build.xml will
do what is necessary.
How can I do it? That is, how to call the Ant via java?
Is there any way to use an Ant object?
Thanks?
Rodrigo Pimenta Carvalho.

Answer 1

There is a slight problem in that
PorjectHelper.configureProject is deprecated, but
that is what Main calls...maybe someone else will
complete this thread with an alternative call.The javadoc recommends using the non static method parse() instead. This is available by implementing class ProjectHelperImpl. An alternative to the code above might look like this:
        Project ant = new Project();
        ProjectHelper helper = new ProjectHelperImpl();
        ant.init();
        helper.parse(ant, new File("build.xml"));
        ant.executeTarget("clean");you might also want to add a logger so you can see the output of events generated by ant. The DefaultLogger class would be used like this. Simply add the code before you call the ant.init().
        DefaultLogger log = new DefaultLogger();
        log.setErrorPrintStream(System.err);
        log.setOutputPrintStream(System.out);
        log.setMessageOutputLevel(Project.MSG_INFO);
        ant.addBuildListener(log);