How to add and remove subscriber in a same Operation particpant?

Question

Hai.

I have a peculiar requirement. I want to send alert notification mail to an user by adding him in the subscriber list based on a certain custom attribute and status of the Task.

Once the status change notification sent to the User, I want to unsubscribe him immediately. Because, other changes happening in the work item or not interested for them.

How to achieve this? Help appreciated.

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sam detweiler (12.5k●6●195●201) | answered Oct 23 '12, 8:27 a.m.
edited Apr 30 '13, 12:18 p.m.

at the time the participant is called, the workitem as been saved already.

so you will have to add the user as a subscriber, and save the workitem again, which will call the participant again (so you need to set some flag to know this)
then you need to remove them as a subscriber, and save the workitem AGAIN.. which will call the participant again.

of course, I do not know if this will cause an email to be queued to send, as I don't know the internal timing of the calls.

Muthukumar C selected this answer as the correct answer

Answer 2

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Muthukumar C (327●1●28●33) | answered Oct 23 '12, 9:31 a.m.
edited Oct 23 '12, 9:32 a.m.

Thanks Sam.
I did the exact thing. I used SaveWorkitem3 method to send the additional parameter to avoid recursion.

But the thing is that the subscription is not happening. I removed the code for remove the subscriber and checked. user is not added as the Subscriber.

I am having the User ID as string. So I tried the following but no luck

sourceWorkItem = (IWorkItem) workItemServer.getAuditableCommon().resolveAuditable(sourceWorkItem ,IWorkItem.FULL_PROFILE,monitor).getWorkingCopy();
IContributor userIAG = (IContributor) IContributor.ITEM_TYPE.createItem();
userIAG.setUserId("myuserid");
ISubscriptions subscription= sourceWorkItem.getSubscriptions();
subscription.add(userIAG);
workItemServer.saveWorkItem3(sourceWorkItem, sourceWIRef, null, additionalParams);

Comments

sam detweiler commented Oct 23 '12, 9:38 a.m.

you need to GET their contributor (user) record.
if they are not registered, you cannot add them to a workitem..

Muthukumar C commented Oct 23 '12, 9:44 a.m. | edited Oct 23 '12, 9:44 a.m.

I am doing that only.

IContributor userIAG = (IContributor) IContributor.ITEM_TYPE.createItem();
userIAG.setUserId("myuserid");
and adding that contributor to the subscriber.

Please let me know if I am doing some thing wron

Answer 3

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sam detweiler (12.5k●6●195●201) | answered Oct 24 '12, 9:40 p.m.
edited Apr 30 '13, 12:13 p.m.

U are creating a user entry in memory, not looking a user up in the system.

u need to use the IContributorManager class to find the user entry, from the javadoc

IContributorRecord fetchContributorRecordByUserId(IContributorUserId userId, org.eclipse.core.runtime.IProgressMonitor monitor)
Fetches a contributor record by one of its user ids.

Answer 4

0	permanent link Muthukumar C (327●1●28●33) \| answered Oct 25 '12, 4:00 a.m. Sam, Thanks for guiding me in right direction. As I am using the Server side plugin, I have achieved the functionality using IContributorService#fetchContributorByUserId.

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