/**
* Performs the current task in the queue and checks to see if the task is complete. If the task
* is complete, this removes the task from the queue and performs any necessary clean-up.
*/
public void DoCurrentTask() {
try {
// If we have something to do, try to get it done
if (currentTask != null) {
currentTask.PerformTaskActions();
// Check to see if the current task is complete
if (currentTask.IsComplete()) {
// Perform any cleanup actions associated with the task with
// which we're finished
currentTask.CleanUpTask();
// If we have another task to do, make it the current task,
// otherwise we make the current task null
if (taskQueue.Size() > 0) {
currentTask = taskQueue.Pop();
} else {
currentTask = null;
}
}
} else if (taskQueue.Size() > 0) {
currentTask = taskQueue.Pop();
}
} catch (Exception ex) {
currentTask = null;
System.err.println(ex.toString());
}
}
/**
* Returns true if a current task exists.
*
* @return True if a current task exists, false otherwise
*/
public boolean PerformingTask() {
// If we are doing a task or are about to do a task,
// return true
if (taskQueue.Size() > 0 || currentTask != null) {
return true;
}
return false;
}
/** Removes all tasks from the queue, performing clean-up actions as necessary. */
public void ClearAllTasks() {
TaskBase popedTask;
while (taskQueue.Size() > 0) {
// Remove the task from the queue and perform necessary clean-up
// actions
try {
popedTask = taskQueue.Pop();
popedTask.CleanUpTask();
} catch (Exception ex) {
System.err.println(ex.toString());
}
}
// In addition to clearing the queue, set the current task to null
currentTask = null;
}
