public ScheduledFuture<?> scheduleTask(String user, Runnable runnable, long delay) {
synchronized (nearRealTimeOrderedTasksMap) {
UserTasks tasks = getUserTasks(user);
if (tasks == null) return null;
ScheduledUserTask scheduledTask = new ScheduledUserTask(runnable, delay, null, null);
tasks.addScheduledTask(scheduledTask);
return scheduledTask.getScheduledFuture();
}
}
public void addNearRealTimeOrderedTask(String user, Runnable runnable) {
synchronized (nearRealTimeOrderedTasksMap) {
UserTasks tasks = nearRealTimeOrderedTasksMap.get(user);
if (tasks == null) return;
tasks.addTask(runnable);
if (numberOfOrderedTasks == 0)
nearRealTimeMainTaskFuture =
scheduler.scheduleWithFixedDelay(
nearRealTimeOrderedTask,
NEAR_REAL_TIME_DELAY,
NEAR_REAL_TIME_DELAY,
TimeUnit.MILLISECONDS);
numberOfOrderedTasks++;
}
}
public void removeUser(String user) {
log.info("Removing user " + user);
UserTasks tasks;
synchronized (nearRealTimeOrderedTasksMap) {
tasks = nearRealTimeOrderedTasksMap.remove(user);
}
if (tasks != null) {
tasks.cancelAllScheduledTasks();
tasks.waitForTasksCompletion();
}
synchronized (nearRealTimeOrderedTasksMap) {
if (nearRealTimeOrderedTasksMap.size() == 0) {
stop();
return;
}
}
}
