/**
* Register cron job REST API
*
* @param message - JSON with cron expressions.
* @return JSON with status.OK
* @throws IOException, IllegalArgumentException
*/
@POST
@Path("cron/{notebookId}")
@ZeppelinApi
public Response registerCronJob(@PathParam("notebookId") String notebookId, String message)
throws IOException, IllegalArgumentException {
LOG.info("Register cron job note={} request cron msg={}", notebookId, message);
CronRequest request = gson.fromJson(message, CronRequest.class);
Note note = notebook.getNote(notebookId);
if (note == null) {
return new JsonResponse<>(Status.NOT_FOUND, "note not found.").build();
}
if (!CronExpression.isValidExpression(request.getCronString())) {
return new JsonResponse<>(Status.BAD_REQUEST, "wrong cron expressions.").build();
}
Map<String, Object> config = note.getConfig();
config.put("cron", request.getCronString());
note.setConfig(config);
notebook.refreshCron(note.id());
return new JsonResponse<>(Status.OK).build();
}
/**
* [used by Spring]
*
* @param cronExpression
*/
public void setCronExpression(String cronExpression) {
if (CronExpression.isValidExpression(cronExpression)) {
this.cronExpression = cronExpression;
} else {
if (StringHelper.containsNonWhitespace(cronExpression)) {
// was not empty, so someone tried to set someting here, let user know that it was garbage
log.warn(
"Configured cron expression is not valid::"
+ cronExpression
+ " check your search.indexing.cronjob.expression property",
null);
}
this.cronExpression = null;
}
}
public String getCron() {
if (cronExpression != null) {
return cronExpression;
}
String cron = null;
if (tomcatId >= 980) {
int shift = 360 + ((tomcatId - 980) * 2);
long hours = TimeUnit.MINUTES.toHours(shift);
long remainMinute = shift - TimeUnit.HOURS.toMinutes(hours);
cron = "0 " + remainMinute + " " + hours + " * * ? *";
} else {
int shift = 120 + (tomcatId * 2);
long hours = TimeUnit.MINUTES.toHours(shift);
long remainMinute = shift - TimeUnit.HOURS.toMinutes(hours);
cron = "0 " + remainMinute + " " + hours + " * * ? *";
}
if (CronExpression.isValidExpression(cron)) {
return cron;
}
return "0 10 5 * * ?";
}
