Time for action – reporting progress

Normally when a Job is running, it is necessary to periodically update the user to let them know the state of the progress. By default, if a Job provides no information, a generic busy indicator is shown. When a Job is executed, it is passed an IProgressMonitor, which can be used to notify the user of the progress (and provide a way to cancel the operation). A progress monitor has a number of tasks, each of which has a total unit of work that it can do. For jobs that don't have a known amount of work, UNKNOWN can be specified and it will display in a generic busy indicator.

1. Open the HelloHandler and go to the execute method. In the inner run method, add a beginTask at the beginning, and a worked in the loop after each second's sleep, for five iterations. The code will look like:

   protected IStatus run(IProgressMonitor monitor) {
     try {
       monitor.beginTask("Preparing", 5000);
       for (int i = 0; i < 5; i++) {
         Thread.sleep(1000);
         monitor...