Use of PageRenderLinkSource in a scheduled job
Hi,
I added a scheduled job to my Tapestry application, where I want to
daily check if there are new tickets and send a mail to people assigned
to these tickets.
So I've added it in AppModule as following:
@Startup
public static void scheduleJobs(
PeriodicExecutor executor,
final MailService mailService) {
executor.addJob(
new CronSchedule(* 8 * * * ?),
Cleanup Job,
new Runnable() {
@Override
public void run() {
mailService.mailNewTickets(now().minusHours(24));
}
});
}
This works perfect. Only I want to add links to the ticket detail page
in these mails.
So I injected PageRenderLinkSource in my MailService class to create
links with context:
pageRenderLinkSource.createPageRenderLinkWithContext(TicketDetails.class,
ticket.getId()).toAbsoluteURI(true);
But this is not working as the scheduled job stops there. I don't see
the exception thrown, probably because it's in another thread?
Maybe this is expected behaviour (Request not available?), but I don't
know how to create the links otherwise besides using a hard coded string
and concatenating the context.
Nathan
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Re: Use of PageRenderLinkSource in a scheduled job
To generate a link, you need a request… so I suggest you do one of the following 1. Use cron and wget to hit your app via a http request instead of a @Startup job inside your app 2. Generate the link at some point in time when you have a HTTPServletRequest and save it for later 3. Use a @Symbol for the base URL and generate the link yourself NB. I started a project where you could render tapestry-templates offline but never finished or tested it… it's nearly done https://github.com/uklance/tapestry-offline The idea was to generate a fake request where half the request was sourced from an overridable global service and the other half was a runtime value. https://github.com/uklance/tapestry-offline/blob/master/src/main/java/org/lazan/t5/offline/services/OfflineComponentRenderer.java https://github.com/uklance/tapestry-offline/blob/master/src/main/java/org/lazan/t5/offline/services/OfflineRequestGlobals.java https://github.com/uklance/tapestry-offline/blob/master/src/main/java/org/lazan/t5/offline/OfflineRequestContext.java If there's enough interest in this… I'll resurrect the project and finish it off.
Re: Use of PageRenderLinkSource in a scheduled job
I make all of my batch jobs Tapestry pages and use Hudson scheduled tasks
to access them. This give you more control, job history and email
notifications on failure. Since the jobs are just pages you can just go to
them to debug them and things like PageRenderLinkSource work as you would
expect. I run thousands of jobs this way every day. The history and
notifications alone are worth it and you can even build/deploy your
application with it.
On Fri, Sep 6, 2013 at 3:12 AM, Nathan Quirynen nat...@pensionarchitects.be
wrote:
Hi,
I added a scheduled job to my Tapestry application, where I want to daily
check if there are new tickets and send a mail to people assigned to these
tickets.
So I've added it in AppModule as following:
@Startup
public static void scheduleJobs(
PeriodicExecutor executor,
final MailService mailService) {
executor.addJob(
new CronSchedule(* 8 * * * ?),
Cleanup Job,
new Runnable() {
@Override
public void run() {
mailService.mailNewTickets(**now().minusHours(24));
}
});
}
This works perfect. Only I want to add links to the ticket detail page in
these mails.
So I injected PageRenderLinkSource in my MailService class to create links
with context:
pageRenderLinkSource.**createPageRenderLinkWithContex**t(TicketDetails.class,
ticket.getId()).toAbsoluteURI(**true);
But this is not working as the scheduled job stops there. I don't see the
exception thrown, probably because it's in another thread?
Maybe this is expected behaviour (Request not available?), but I don't
know how to create the links otherwise besides using a hard coded string
and concatenating the context.
Nathan
--**--**-
To unsubscribe, e-mail:
users-unsubscribe@tapestry.**apache.orgusers-unsubscr...@tapestry.apache.org
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Re: Use of PageRenderLinkSource in a scheduled job
Thanks barry,
this is a good advice. I will give it a try :)
Cheers,
Martin (Kersten)
2013/9/6 Barry Books trs...@gmail.com
I make all of my batch jobs Tapestry pages and use Hudson scheduled tasks
to access them. This give you more control, job history and email
notifications on failure. Since the jobs are just pages you can just go to
them to debug them and things like PageRenderLinkSource work as you would
expect. I run thousands of jobs this way every day. The history and
notifications alone are worth it and you can even build/deploy your
application with it.
On Fri, Sep 6, 2013 at 3:12 AM, Nathan Quirynen
nat...@pensionarchitects.be
wrote:
Hi,
I added a scheduled job to my Tapestry application, where I want to daily
check if there are new tickets and send a mail to people assigned to
these
tickets.
So I've added it in AppModule as following:
@Startup
public static void scheduleJobs(
PeriodicExecutor executor,
final MailService mailService) {
executor.addJob(
new CronSchedule(* 8 * * * ?),
Cleanup Job,
new Runnable() {
@Override
public void run() {
mailService.mailNewTickets(**now().minusHours(24));
}
});
}
This works perfect. Only I want to add links to the ticket detail page in
these mails.
So I injected PageRenderLinkSource in my MailService class to create
links
with context:
pageRenderLinkSource.**createPageRenderLinkWithContex**t(TicketDetails.class,
ticket.getId()).toAbsoluteURI(**true);
But this is not working as the scheduled job stops there. I don't see the
exception thrown, probably because it's in another thread?
Maybe this is expected behaviour (Request not available?), but I don't
know how to create the links otherwise besides using a hard coded string
and concatenating the context.
Nathan
--**--**-
To unsubscribe, e-mail: users-unsubscribe@tapestry.**apache.org
users-unsubscr...@tapestry.apache.org
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Re: Use of PageRenderLinkSource in a scheduled job
On Fri, Sep 6, 2013 at 2:03 AM, Lance Java lance.j...@googlemail.comwrote: To generate a link, you need a request… so I suggest you do one of the following You only need the request to find out where your service is if you haven't explicitly specified a hostname. If you have, PageRenderLinkSource uses the HOSTNAME symbol instead of trying to obtain it from the request (which is unreliable). Kalle
