I have a cron job that Runs using Quartz.NET.
<cron-expression>0 5 * * * ?</cron-expression>
It runs every 5 minutes as you can see above, but I want it to not run from 5pm on 30/Dec/2013 to 7am on 01/Jan/2014..
Is this possible does anyone know?
Thanks
Neil
Exclusion are most easily made with calendars. With calendar you can exclude a set of days, weekdays, time of days or a cron expression from schedule. Calendar is checked always checked after fire time has been determined (is this OK to run?).
You could either chain multiple calendars because you have nasty complexity of passing the year, multiple days and time range on top of that. More readable and understandable solution could be to implement your own fixed time range calendar (implementing ICalendar) that takes end and start time and excludes them.
You could naturally also make your first cron trigger end at 2013-12-30 17:00 and add a new trigger that starts at 2014-01-01 07:00.
Here's a trivial sample utilizing CronCalendar:
var calendar = new CronCalendar("0 * 1 * * ?");
scheduler.AddCalendar("myCalendar", calendar, replace: false, updateTriggers: false);
var trigger = TriggerBuilder.Create()
.WithCronSchedule("0 5 * * * ?")
.ModifiedByCalendar("myCalendar")
.Build();
scheduler.ScheduleJob(trigger);
Related
Say for example i want to run a job for a day at "3:22, 4:22, 6:22, 10:22, 18:22, 21.22" on these times just for the current day.
How could we write a cron expresion for it or using other Simple Trigger of Quartz API.
Using cron trigger you can set endAt() to stop trigger at the end of the day
trigger = newTrigger()
.withSchedule(cronSchedule(0 22 3,4,6,10,18,21 ? * * *))
.endAt(TRIGGER_END_TIME)
.forJob(myJobKey)
.build();
I want to run a cron job on a specific date of every month in node js.I am using a npm module named 'Cron' but the function is not firing on the specific date.Here is the code I am using
var CronJob = require('cron').CronJob;
new CronJob('0 0 0 21 * *', function () {
// this code run will on the 21st of every month
}, null, true, 'America/Los_Angeles');
Your cron pattern seems right but you can also try removing first 0 , beacuse second is not important in your case .I think problem is about your timezone value. Probably, your timezone is not America/Los_Angeles try to change it.
To fin your current timezone value check this site : http://momentjs.com/timezone/
I have configured jobs with node-cron and yeah I love this node module to schedule job in node.
Here I have requirement of sending push notification to users which are located in different timezone.I want to send notification to them on specific time.
Let's say I am sending notification at 9 PM so in all listed timezone cron job will trigger at 9 PM.
var CronJob = require('cron').CronJob;
var job = new CronJob('00 30 11 * * 1-5', function() {
/*
* Runs every weekday (Monday through Friday)
* at 11:30:00 AM. It does not run on Saturday
* or Sunday.
*/
}, function () {
/* This function is executed when the job stops */
},
true, /* Start the job right now */
timeZone /* Time zone of this job. */
);
I know all this and I am doing same for one timezone as mentioned in there doc.
timeZone - [OPTIONAL] - Specify the timezone for the execution. This
will modify the actual time relative to your timezone.
But Can I specify multiple timezone here in timezone attribute?
If somebody aware of some other node module can achieve this then let me know?
NOTE : I already know I can configured multiple configuration here for each timezone but what if there are dynamic list.
I don't know of a way to send a list of timezones to the CRON job but you could change the logic in the method that runs inside the cron job.
You could do this :
run the job every half hour
if it's a day you want it to run on
select users where (convert current GMT time to user timezone - if the db can do this) > 11:30 AM in their timezone && hasn't sent a notification yet
send notifications to the returned users.
You might have already gone this route ... just throwing in my 2c
HTH
What i should do to run CRON trigger to run now once and follow the expression for Example
trigger that simply fires every 5 minutes.
I have gone through the below post
https://groups.google.com/forum/#!topic/quartznet/GAv10E4TJ50
If you want to make sure your job is run immediately you can set start
time to one day before DateTime.Now, so you change your code to:
CronTrigger trigger = new CronTrigger("trig", "grp", "job", "grp",
DateTime.Now.AddDays(-1), null, "0 0 0 * * ?");
But does the above work for any scenario. like
0 0/5 14 * * ? Fire every 5 minutes starting at 2pm and ending at 2:55pm, every day (if current time is 2:15pm)
Thanks,
Kusuma
What about creating a CRON trigger with a temporary schedule to "trigger the job now" (e.g. 0 * * * * ?) and implementing a JobListener that would update the CRON trigger's expression once the job has been executed for the first time? You can use, for example, a job data map parameter to distinguish the first and subsequent executions in the listener.
If you do not insist that it must always be the same CRON trigger that "executes the job now" and then continues to execute it regularly, then you can use one of the triggerJob methods that both create a temporary on-off SimpleTrigger that is used to execute the job now.
The time at which the trigger's scheduling should start. May or may not be the first actual fire time of the trigger, depending upon the type of trigger and the settings of the other properties of the trigger. However the first actual first time will not be before this date.
So i could able to run immediately by setStartTime
I have a task which requires to be executed every Thursday, but if the day is a speical holiday such as Christmas, the task should be changed to another day( wednesday or friday), so I get is a general expression plus some special dates, how should I combine all these expressions in one cron expression to be used in Quartz? Thanks.
I don't think you can do it with just one expression since there's no way to specify holidays.
But you can define two triggers T1 and T2 and a "smarter" Job J1:
A trigger T1 on J1 that fires every Thursday using the HolidayCalendar that will exclude arbitrary days from triggering the job execution
//Define an HolidayCalendar and add it to Scheduler
HolidayCalendar cal = new HolidayCalendar();
cal.addExcludedDate( someDate );
sched.addCalendar("myHolidays", cal, false);
//Create the trigger T1 to use the holydayCalendar
...
triggerT1.setCalendarName("myHolidays");
//schedule job with trigger T1
Define a Trigger T2 on J1 that fires on the alterantive day you choose (Wednesday or Friday).
The job J1 must decide whether start executing its business logic or not using the HolydayCalendar. There are many easy ways to do this, for exemple:
//Get Holyday calendar from Scheduler instance
HolidayCalendar cal = sched.getCalendar("myHolidays");
//Decide here if execute or not
if (today is an "alternative" day && lastThursday is an holiday) {
//Job real business logic
}
See this Quartz tutorial for more exemple about Quartz Calendars.
Also you can use this tool to build Quartz-compatible Cron expressions.
Hope this helps!