public AntJob() 
{
        super();
}

Creates a new AntJob.

 public  void execute(JobExecutionContext context) throws JobExecutionException 
{
        JobDataMap dataMap = context.getMergedJobDataMap();
        String execDir = dataMap.getString("execdir");
        String buildFileName = dataMap.getString("buildfile");
        String target = dataMap.getString("target");
        // Create a new project, and perform some default initialization
        Project project = new Project();
        try {
            project.init();
        } catch (BuildException e) {
            throw new JobExecutionException(e.getMessage());
        }
        // Prepare the buildfile. If none is given, "build.xml" is used.
        if (buildFileName == null) {
            buildFileName = "build.xml";
        }
        File buildFile = new File(execDir + File.separator + buildFileName);
        // Set system properties
        Properties sysProps = System.getProperties();
        Iterator it = sysProps.entrySet().iterator();
        while (it.hasNext()) {
            Map.Entry entry = (Map.Entry) it.next();
            project.setProperty(entry.getKey().toString(), entry.getValue().toString());
        }
        // Loop through the parameter property map
        it = dataMap.keySet().iterator();
        while (it.hasNext()) {
            // Get the property's name and value
            String propName = (String) it.next();
            String propValue = dataMap.getString(propName);
            if (propName.startsWith("$P_")) {
                project.setProperty(propName.substring(3), propValue);
            } else if (propName.startsWith("$U_")) {
                project.setUserProperty(propName.substring(3), propValue);
            }
        }
        try {
            ProjectHelper.getProjectHelper().parse(project, buildFile);
            // Set ANT built-in properties
            project.setProperty("basedir", project.getBaseDir().getPath());
            project.setProperty("ant.project.name", project.getName());
            project.setProperty("ant.file", buildFile.getPath());
            // If no target is specified, run the default one.
            if (target == null) {
                target = project.getDefaultTarget();
            }
            // Run the target
            project.executeTarget(target);
        } catch (BuildException e) {
            throw new JobExecutionException(e.getMessage());
        }
}