public static void scheduleForCRON(Job job) {
if (job.getClass().isAnnotationPresent(On.class)) {
String cron = ((On) (job.getClass().getAnnotation(On.class))).value();
if (cron.startsWith("cron.")) {
cron = Play.configuration.getProperty(cron);
}
if (cron != null && !cron.equals("")) {
try {
Date now = new Date();
Date nextDate = Time.parseCRONExpression(cron);
long delay = nextDate.getTime() - now.getTime();
executor.schedule((Callable) job, delay, TimeUnit.MILLISECONDS);
job.executor = executor;
} catch (Exception ex) {
throw new UnexpectedException(ex);
}
} else {
Logger.info("Skipping job %s, cron expression is not defined", job.getClass().getName());
}
}
}
public static <V> void scheduleForCRON(Job<V> job) {
if (!job.getClass().isAnnotationPresent(On.class)) {
return;
}
String cron = job.getClass().getAnnotation(On.class).value();
if (cron.startsWith("cron.")) {
cron = Play.configuration.getProperty(cron);
}
cron = Expression.evaluate(cron, cron).toString();
if (cron == null || "".equals(cron) || "never".equalsIgnoreCase(cron)) {
if (Logger.isEnabledFor("INFO"))
Logger.info("Skipping job %s, cron expression is not defined", job.getClass().getName());
return;
}
try {
Date now = new Date();
cron = Expression.evaluate(cron, cron).toString();
CronExpression cronExp = new CronExpression(cron);
Date nextDate = cronExp.getNextValidTimeAfter(now);
if (nextDate == null) {
if (Logger.isEnabledFor("WARN"))
Logger.warn(
"The cron expression for job %s doesn't have any match in the future, will never be executed",
job.getClass().getName());
return;
}
if (nextDate.equals(job.nextPlannedExecution)) {
// Bug #13: avoid running the job twice for the same time
// (happens when we end up running the job a few minutes before the planned time)
Date nextInvalid = cronExp.getNextInvalidTimeAfter(nextDate);
nextDate = cronExp.getNextValidTimeAfter(nextInvalid);
}
job.nextPlannedExecution = nextDate;
executor.schedule(
(Callable<V>) job, nextDate.getTime() - now.getTime(), TimeUnit.MILLISECONDS);
job.executor = executor;
} catch (Exception ex) {
throw new UnexpectedException(ex);
}
}