/**
* If the thread is currently active, calls {@link #executionCancelled()} to notify children. If
* not active, removes the thread from the queue so it won't become active.
*/
public final void cancel() {
boolean dependentThreads = false;
synchronized (LOCK) {
dependentThreads = checkQueuedThreadDependOnCurrentThread();
}
if (dependentThreads) {
if (ConfirmDialog.OK_OPTION
!= SwingTools.showConfirmDialog(
"cancel_pg_with_dependencies", ConfirmDialog.OK_CANCEL_OPTION)) {
return;
} else {
synchronized (LOCK) {
removeQueuedThreadsWithDependency(getID());
}
}
}
synchronized (LOCK) {
cancelled = true;
if (started) {
executionCancelled();
currentThreads.remove(this);
} else {
// cancel and not started? Can only be in queue
queuedThreads.remove(this);
}
}
taskCancelled(this);
}
